2 kw Electromechanical Training Systems

Transcription

1 2 kw Electromechanical Training Systems LabVolt Series Datasheet Festo Didactic en 220 V - 50 Hz 07/2018

2 Table of Contents General Description 2 Load Modules 3 Metering Modules 3 Courseware 3 Features & Benefits 3 List of Available Training Systems 4 Optional Equipment 4 Optional Manual(s) 4 Available Training Systems 4 Equipment Description 14 Optional Equipment Description 37 General Description The 2 kw Electromechanical Training Systems, Series 8013, are a unique modular program in electric power technology. The series contains four training systems which deal with the different techniques associated with the generation and use of electrical energy. The training systems simulates large power machines, yet are very safe for student experimentation. They incorporates heavy-duty components and machines that can be combined to create different configurations tailored to technical or university courses. The systems satisfy educational requirements for industrial applications of electric power technology, using industrial-like equipment to provide easy-to-understand laboratory results and easily observed data values. All modules in the training systems can be inserted into a standard Mobile Workstation, Model The modules are constructed from heavy-gauge steel, finished in baked enamel. There are two standard module sizes: full size, 308 mm (12.1 in) high, and half size,154 mm (6.0 in) high. Symbols and diagrams specific to each module are clearly silk-screened on the faceplates. Standard color-coded safety 4 mm jacks are used to interconnect all system components. Each 2 kw rotating machine in the training systems is permanently mounted on a mobile cart, and includes a double-extension shaft terminated with geared-type flanges. Different machines may be joined with a hard rubber coupling device and patented locking fastener designed to eliminate vibrations. Any combination of machines may be studied simultaneously. The rotating machines have a specifically high inertia to simulate large-power machines. The frame of each machine is equipped with transparent shatter-proof shields to better observe the machine interior. The insulation class of the machines is B (80 temperature rise), the service factor is continuous, and the construction is of the open type. In addition, all machines are equipped with search coils through which the magnetic flux distribution at various locations in the machine can be observed using an oscilloscope. All machine windings are brought out to the faceplate of a connection module through a 3 m (10 ft) long, heavyduty, interconnecting cable fitted with a keyed connector. This way, any particular machine can only be connected to its associated connection module. All windings are individually accessible on the faceplate of the connection module associated with that machine. Power windings are terminated by 4 mm color-coded safety jacks and search coils on 2 mm banana jacks. The different size of the jacks prevents accidental connections between power windings and search coils. The connection modules are fitted into half-size modules, and they must be placed at the bottom of a full height section in a workstation to allow connection. 2 Festo Didactic

3 Load Modules Resistive, inductive, and capacitive load modules are designed to provide equal load impedances for all three types of loads. Current increments and increment number are also the same for all modules. These characteristics simplify the calculations required during the learning process. The load impedance is set using switches mounted on the faceplate of the modules. Metering Modules The metering modules are designed to cover the complete range of measurements required with a minimum number of meters. The ac ammeter and voltmeter modules each contain three meters for simultaneously measuring all currents and voltages on a three-phase system. All meters are designed to sustain starting currents even when used on a low range. Wattmeters are internally connected to measure power directly when the input is connected to the source and the output to the load. Protection of vulnerable meter components is accomplished without fuses. Courseware The 2 kw Electromechanical Training System courseware consists of student manuals that guide students through the experiments and provide the necessary theoretical background to successfully complete the educational objectives. The instructor can select the experiments that will satisfy the objectives of technical courses or university programs. The flexibility of this system allows students to act on their own initiative during laboratory sessions. Features & Benefits Extreme ease-of-use and durability, and manufactured to the highest quality standards Wide range of heavy-duty components Designed to ensure student safety Machine Motor frames equipped with transparent, shatter-proof shields for inspection of the interior Comprehensive, flexible curriculum Symbols and diagrams specific to each module are clearly silk-screened on the faceplates Standard color-coded safety 4 mm jacks are used to interconnect all system components Protection of vulnerable meter components is accomplished without fuses Metering modules cover the complete range of measurements required with a minimum number of meters Several combinations of machines can be studied simultaneously Festo Didactic 3

4 Machines may be joined with a hard rubber coupling device and patented locking fasteners designed to eliminate vibrations Machines have a specifically high inertia to simulate large-power machines Machines are equipped with search coils through which the magnetic flux distribution at various locations in the machine can be observed using an oscilloscope Estimated total program duration: 200 hours List of Available Training Systems Qty Description Model number 1 2 kw EMS Modularized kw EMS Power Circuits kw EMS DC Machines kw EMS Transformers and AC Machines Optional Equipment Qty Description Model number 1 Workstation Full-Size Blank EMS Module Half-Size Blank EMS Module DC Voltmeter/Ammeter, 2 kw Star (Wye)/Delta Starter, 2 kw Rotor Positioner Phase-Shift Indicator Stroboscope Digital Multimeter Optional Manual(s) Model Qty Description number 1 2-kW Electromechanical Training System (Manuals on CD-ROM) A0 Available Training Systems 2 kw EMS Modularized The 2 kw Electromechanical System (EMS) Modularized is a complete training system that covers the principles of power circuits, dc machines, transformers, and ac machines. List of Equipment 4 Festo Didactic

5 Qty Description Model number 1 Mobile Workstation Storage Shelves AC Voltmeter DC Motor/Generator Wiring Module for DC Motor/Generator Four-Pole Squirrel-Cage Induction Motor, 2 kw Wiring Module for Squirrel-Cage Induction Motor Three-Phase Wound-Rotor Induction Motor, 2 kw Wiring Module for Wound-Rotor Induction Motor Synchronous Motor/Generator Wiring Module for Synchronous Motor/Generator Resistive Load, 2 kw Inductive Load, 2 kw Capacitive Load, 2 kw Single-Phase Transformer, 2 kw DC Voltmeter/Ammeter AC Ammeter Module, 2 kw Wattmeter / Varmeter DC Breaker, 2kW Synchronizing Module, 2 kw Manual DC Motor Starter Synchronous Motor Starter, 2 kw Three-Phase Full-Voltage Starter, 2 kw Three-Phase Rheostat, 2kW Three-Phase Power-Factor Meter, 2kW Field Rheostat, 2 kw Variable Power Supply Automatic DC Motor Starter Digital Tachometer Speed Sensor / Tachometer Coupler Digital Multimeter Connection Lead Set List of Manuals Manual Description number Power Circuits (Student Manual) DC Machines (Student Manual) Transformers and AC Machines (Student Manual) Power Supply (Instruction Manual) D0 Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Power Circuits (Student Manual) ( ) Festo Didactic 5

6 1 Series and Parallel Equivalent Resistances 2 Resistances in Parallel 3 Resistances in Series and in Series-Parallel 4 Safety and the Power Supply 5 Ohm's Law 6 Circuit Solution - Part 1 7 Circuit Solution - Part 2 8 Poer in DC Circuits - Part 1 9 Power in DC Circuits - Part 2 10 The Transmission Line 11 AC Voltage and Current 12 AC Voltage and Current Measurement 13 The Wattmeter 14 Phase Angle, Real and Apparent Power 15 Capacitive Reactance 16 Inductive Reactance 17 Watt, Var, Volt-Ampere and Power Factor 18 Vectors and Phasors - Series Circuits 19 Vectors and Phasors - Parallel Circuits 20 Impedance 21 Three-Phase Circuits 22 Active, Reactive and Apparent Power in Three-Phase Circuits 23 Three-Phase Power Measurement 24 Phase Sequence DC Machines (Student Manual) ( ) 1 Prime Mover & Torque Measurement 2 The Direct Current Motor - Part 1 3 The Direct Current Motor - Part 2 4 The DC Shunt Motor 5 The DC Series Motor 6 The DC Compound Motor 7 The Separately-Excited DC Shunt Generator 8 The Self-Excited DC Shunt Generation 9 The DC Compound Generator 10 DC Motor Starter Transformers and AC Machines (Student Manual) ( ) 1 The Single-Phase Transformer 2 Transformer Polarity 3 Transformer Regulation 4 The Autotransformer 5 Transformers in Parallel 6 The Distribution Transformer 7 Three-Phase Transformer Connections 8 Primer Mover and Torque Measurement 9 The Wound-Rotor Induction Motor - Part 1 6 Festo Didactic

7 10 The Wound-Rotor Induction Motor - Part 2 11 The Wound-Rotor Induction Motor - Part 3 12 The Squirrel Cage Induction Motor 13 The Synchronous Motor - Part 1 14 The Synchronous Motor - Part 2 15 The Synchronous Motor - Part 3 16 The Three-Phase Alternator 17 The Alternator Under Load 18 Alternator Synchronization 19 Alternator Power 20 Three-Phase Motor Starters 21 Frequency Conversion 22 Reactance and Frequency 23 Selsyn Control Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules System System Requirements Typical Current AC Power Network Installation 6 A per student group AC Power Network Connector NEMA L22-20 Intended Location EMS Modules Full-Size Half-Size 2 kw Rotating Machines 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker On the floor. Both the Mobile Workstation and the rotating machines stand on casters x 840 x 1575 mm (64.6 x 33.2 x 62 in) 963 kg (2119 lb) 308 x 287 x 440 mm (12.1 x 11.3 x 17.3 in) 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 855 x 440 x 775 mm (33.7 x 17.3 x 30.5 in) Festo Didactic 7

8 2 kw EMS Power Circuits The 2 kw Electromechanical System (EMS) Power Circuits, is a partial training system that covers the principles of power circuits. List of Equipment Qty Description Model number 1 Mobile Workstation Storage Shelves AC Voltmeter Resistive Load, 2 kw Inductive Load, 2 kw Capacitive Load, 2 kw DC Voltmeter/Ammeter AC Ammeter Module, 2 kw Wattmeter / Varmeter Synchronizing Module, 2 kw Variable Power Supply Digital Multimeter Connection Lead Set List of Manuals Manual Description number Power Circuits (Student Manual) Power Supply (Instruction Manual) D0 Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Power Circuits (Student Manual) ( ) 1 Series and Parallel Equivalent Resistances 2 Resistances in Parallel 3 Resistances in Series and in Series-Parallel 4 Safety and the Power Supply 5 Ohm's Law 6 Circuit Solution - Part 1 7 Circuit Solution - Part 2 8 Poer in DC Circuits - Part 1 8 Festo Didactic

9 9 Power in DC Circuits - Part 2 10 The Transmission Line 11 AC Voltage and Current 12 AC Voltage and Current Measurement 13 The Wattmeter 14 Phase Angle, Real and Apparent Power 15 Capacitive Reactance 16 Inductive Reactance 17 Watt, Var, Volt-Ampere and Power Factor 18 Vectors and Phasors - Series Circuits 19 Vectors and Phasors - Parallel Circuits 20 Impedance 21 Three-Phase Circuits 22 Active, Reactive and Apparent Power in Three-Phase Circuits 23 Three-Phase Power Measurement 24 Phase Sequence Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules System System Requirements Typical Current AC Power Network Installation 6 A per student group AC Power Network Connector NEMA L22-20 Intended Location EMS Modules Full-Size Half-Size 2 kw Rotating Machines 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker On the floor. Both the Mobile Workstation and the rotating machines stand on casters x 840 x 1575 mm (64.6 x 33.2 x 62 in) 351 kg (772 lb) 308 x 287 x 440 mm (12.1 x 11.3 x 17.3 in) 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 855 x 440 x 775 mm (33.7 x 17.3 x 30.5 in) Festo Didactic 9

10 2 kw EMS DC Machines The 2 kw Electromechanical System (EMS) DC Machines is a partial training system that covers the principles of dc machines. List of Equipment Qty Description Model number 1 Mobile Workstation Storage Shelves AC Voltmeter DC Motor/Generator Wiring Module for DC Motor/Generator Synchronous Motor/Generator Wiring Module for Synchronous Motor/Generator Resistive Load, 2 kw DC Voltmeter/Ammeter AC Ammeter Module, 2 kw Manual DC Motor Starter Synchronous Motor Starter, 2 kw Field Rheostat, 2 kw Variable Power Supply Automatic DC Motor Starter Digital Tachometer Speed Sensor / Tachometer Coupler Connection Lead Set List of Manuals Manual Description number DC Machines (Student Manual) Power Supply (Instruction Manual) D0 Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) DC Machines (Student Manual) ( ) 1 Prime Mover & Torque Measurement 2 The Direct Current Motor - Part 1 3 The Direct Current Motor - Part 2 4 The DC Shunt Motor 10 Festo Didactic

11 5 The DC Series Motor 6 The DC Compound Motor 7 The Separately-Excited DC Shunt Generator 8 The Self-Excited DC Shunt Generation 9 The DC Compound Generator 10 DC Motor Starter Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules System System Requirements Typical Current AC Power Network Installation 6 A per student group AC Power Network Connector NEMA L22-20 Intended Location EMS Modules Full-Size Half-Size 2 kw Rotating Machines 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker On the floor. Both the Mobile Workstation and the rotating machines stand on casters x 840 x 1575 mm (64.6 x 33.2 x 62 in) 532 kg (1070 lb) 308 x 287 x 440 mm (12.1 x 11.3 x 17.3 in) 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 855 x 440 x 775 mm (33.7 x 17.3 x 30.5 in) 2 kw EMS Transformers and AC Machines The 2 kw Electromechanical System (EMS) Transformers and AC Machines is a partial training system that covers the principles of transformers and ac machines. List of Equipment Qty Description Model number 1 Mobile Workstation Storage Shelves AC Voltmeter DC Motor/Generator Wiring Module for DC Motor/Generator Festo Didactic 11

12 Qty Description Model number 1 Four-Pole Squirrel-Cage Induction Motor, 2 kw Wiring Module for Squirrel-Cage Induction Motor Three-Phase Wound-Rotor Induction Motor, 2 kw Wiring Module for Wound-Rotor Induction Motor Synchronous Motor/Generator Wiring Module for Synchronous Motor/Generator Resistive Load, 2 kw Inductive Load, 2 kw Capacitive Load, 2 kw Single-Phase Transformer, 2 kw DC Voltmeter/Ammeter AC Ammeter Module, 2 kw Wattmeter / Varmeter DC Breaker, 2kW Synchronizing Module, 2 kw Synchronous Motor Starter, 2 kw Three-Phase Full-Voltage Starter, 2 kw Three-Phase Rheostat, 2kW Three-Phase Power-Factor Meter, 2kW Field Rheostat, 2 kw Variable Power Supply Digital Tachometer Speed Sensor / Tachometer Coupler Digital Multimeter Connection Lead Set List of Manuals Manual Description number Transformers and AC Machines (Student Manual) Power Supply (Instruction Manual) D0 Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Transformers and AC Machines (Student Manual) ( ) 1 The Single-Phase Transformer 2 Transformer Polarity 3 Transformer Regulation 4 The Autotransformer 5 Transformers in Parallel 6 The Distribution Transformer 7 Three-Phase Transformer Connections 8 Primer Mover and Torque Measurement 9 The Wound-Rotor Induction Motor - Part 1 12 Festo Didactic

13 10 The Wound-Rotor Induction Motor - Part 2 11 The Wound-Rotor Induction Motor - Part 3 12 The Squirrel Cage Induction Motor 13 The Synchronous Motor - Part 1 14 The Synchronous Motor - Part 2 15 The Synchronous Motor - Part 3 16 The Three-Phase Alternator 17 The Alternator Under Load 18 Alternator Synchronization 19 Alternator Power 20 Three-Phase Motor Starters 21 Frequency Conversion 22 Reactance and Frequency 23 Selsyn Control Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules System System Requirements Typical Current AC Power Installation 6 A per student group AC Power Connector NEMA L22-20 Intended Location EMS Modules Full-Size Half-Size 2 kw Rotating Machines 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker On the floor. Both the Mobile Workstation and the rotating machines stand on casters x 840 x 1575 mm (64.6 x 33.2 x 62 in) 948 kg (2086 lb) 308 x 287 x 440 mm (12.1 x 11.3 x 17.3 in) 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 855 x 440 x 775 mm (33.7 x 17.3 x 30.5 in) Festo Didactic 13

14 Equipment Description Mobile Workstation The Mobile Workstation is a ready-foruse workstation that consists of two fully assembled modules: a Workstation, Model , mounted on a Mobile Storage Cabinet, Model Four rubber-tire swivel casters allow easy movement of the workstation in the laboratory classroom. The lower portion of the workstation serves as a storage cabinet with two hinged panels and a lock handle. Immediately above the storage cabinet is a pullout work surface with a scuff- and burnresistant laminate finish. The upper portion of the workstation consists of three rows of compartments designed to house EMS modules. Two of these rows have full-height compartments while the other row has half-height compartments. Each row of full-height compartments can accommodate up to three full-size EMS modules or six half-size EMS modules, whereas the row of half-height compartments can accommodate up to three half-size EMS modules. Module Installation The EMS modules are guided into position along stainless steel guide rails. Separators between each bay of the workstation ensure perfect alignment of the EMS modules and allow their easy insertion in the workstation. A holding mechanism ensures that each EMS module stays in place once it is installed in a compartment of the workstation. Front-mounted push levers allow all EMS modules on a single row to be released for easy removal. 14 Festo Didactic

15 Safety Padlock Bars Two safety padlock bars on the front of the workstation prevent students from removing EMS modules during laboratory exercises. The bars can be removed and locked to the side of the workstation when the safety lock is not necessary. Additional Information Six holes in the rear panel of the workstation allow connection to a power supply, as well as the connection of 2 kw machines to their interconnection modules. Assembly of the workstation before painting ensures that each EMS module in the workstation is correctly grounded. Manual Manual Description number Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules Optional Equipment Qty Description Model number 1 Industrial Controls Single-Rail Workstation A0 1 Industrial Controls Double-Rail Workstation B0 1 This add-on workstation allows modules from the Industrial Controls Training Systems, Models 8036, to be installed in the EMS workstation. Refer to the 8036 datasheet for more information. 2 This add-on workstation allows modules from the Industrial Controls Training Systems, Models 8036, to be installed in the EMS workstation. Refer to the 8036 datasheet for more information. Festo Didactic 15

16 Intended Location On the floor (stands on casters) 1660 x 935 x 665 mm (65.4 x 36.8 x 26.2 in) 77.1 kg (170 lb) Storage Shelves The Storage Shelves module contains five shelves, each of which can accommodate four full-size EMS modules or eight half-size EMS modules. Stainless steel rails guide the modules on the storage shelves and protect them against wear. The Storage Shelves module requires assembly. A diagram is provided to facilitate assembly. Note that this model cannot stand by itself and must be attached to a wall. Optional Equipment Model Qty Description number 1 Dust Cover for Model Intended Location On the floor and attached to a wall 1980 x 1225 x 480 mm (78 x 48.2 x 18.9 in) TBE 16 Festo Didactic

17 AC Voltmeter multiplied by a constant. The AC Voltmeter module is fitted with three separate multi-range ac voltmeters for simultaneous measurement of three-phase voltages. Meter ranges and scalar values of each instrument have been carefully selected for compatibility and are appropriate for the electrical values to be measured. All meter readings are direct indications and do not require the indicated value to be mentally All meters are diode-protected against burnout, should the students miswire a meter by range or function. This permits the greatest latitude of student involvement without fear of damaging equipment. All meters are terminated by 4 mm color-coded safety sockets. Voltmeter Ranges Low High Accuracy 2% Type of Instrument Type of Movement Shipping Weight V ac 500 V ac Panel meter - 65 mm (2.5 in) d'arsonval, 1000 Ω/V, and rectifier current 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 3.6 kg (7.9 lb) 5.2 kg (11.4 lb) DC Motor/Generator The DC Motor/Generator consists of a 4 pole machine rated at 2 kw. It has one shunt field winding, two series field windings, and one inter-pole winding. The winding dimensions permit the study of dc machine operation as a shunt machine, a series machine, a cumulative compound machine, and a different compound machine. The DC Motor/Generator may also be operated as a dynamometer. It is equipped with a hydraulic torque measuring device calibrated from 0-30 N m (0-266 lbf in). Festo Didactic 17

18 A handle permits easy displacement of the brushes to study the effect of armature reaction and commutation. Three search coils allow observation of the flux distribution at one pole of the stator, at one tooth, and at full pitch of the rotor through slip rings. Motor (Full Load / Shunt) Power Armature Voltage Shunt-Field Voltage Speed Current Torque 2 kw 220 V DC 220 V DC 1500 r/min 12.1 A Efficiency 73% Nominal Shunt-Field Current Friction and Windage Losses Iron Losses Generator (Full Load / Shunt) Power Speed Current 12.7 N m (112.4 lbf in) 0.44 A 110 W 40 W 1.5 kw 1500 r/min 6.8 A Efficiency 85% Nominal Shunt-Field Current Friction and Windage Losses Iron Losses Resistances at 25 C Shunt (1-2) Short-Series (3-4) Long-Series (5-6) Interpoles (7-8) Armature and Brushes (8-9) Inductances Shunt Field (1-2) Armature (8-9) Search Coils Stator - One Pole Armature - Full Pitch Armature One - Tooth Torque Indicator Moment of Inertia 0.60 A 110 W 70 W 255 Ω 0.33 Ω 0.70 Ω 1.23 Ω 1.15 Ω 12.4 H 45.6 mh 10 turns 5 turns 5 turns 0 to 30 N m (0 to 266 lbf in) 0.14 kg m² (478 lb in²) 855 x 440 x 775 mm (33.7 x 17.3 x 30.5 in) 129 kg (283.8 lb) 18 Festo Didactic

19 Wiring Module for DC Motor/Generator coils. The DC Motor/Generator consists of a connection module. It provides connection access to the DC Motor/ Generator from the Mobile Workstation through a flexible connecting cable. The module has nine 4 mm color-coded safety jacks for the power windings and six 2 mm jacks for the search coils. Jacks of different sizes prevent accidental connections between power windings and search 212 x 287 x 496 mm (8.3 x 11.3 x 19.5 in) 4.1 kg (9.0 lb) Four-Pole Squirrel-Cage Induction Motor, 2 kw The Four-Pole Squirrel-Cage Induction Motor consists of a 3-phase machine rated at 2 kw. Each phase of the stator winding is accessible via the connection module to allow wye or delta connections. The machine is equipped with a standard castaluminum squirrel cage rotor. The winding dimensions permit the study of machine operation as a squirrel-cage induction motor or as an asynchronous generator when driven by a prime mover. The machine has a 5-turn, full-pitch stator search coil to allow the observation of the instantaneous flux distribution. Motor (Full Load) Connection Line Voltage Power Speed Current 3 ~, wye connected 220/380 V 50 Hz 2 kw 1465 r/min 4.6 A Festo Didactic 19

20 Torque 13.0 N m (115.9 lbf in) Efficiency 80% Power Factor 0.83 Friction and Windage Losses 100 W Iron Losses 70 W Motor (Starting) Current 25.6 A Torque 17.7 N m (156.7 lbf in) Stator Resistance (per phase at 25 C) 2.2 Ω Search Coil Stator - Full Pitch 5 turns Moment of Inertia kg m² (365.7 lb in²) 830 x 400 x 605 mm (32.7 x 15.7 x 23.8 in) 88 kg (193.6 lb) Wiring Module for Squirrel-Cage Induction Motor and search coils. The Wiring Module for Squirrel-Cage Induction Motor consists of a connection module. It provides connection access to the Four-Pole Squirrel-Cage Induction Motor from the Mobile Workstation through a flexible connecting cable. The module has six 4-mm color-coded safety jacks for the power windings and two 2-mm jacks for the stator search coils. Jacks of different sizes prevent accidental connections between power windings 212 x 287 x 496 mm (8.3 x 11.3 x 19.5 in) 4.1 kg (9.0 lb) 20 Festo Didactic

21 Three-Phase Wound-Rotor Induction Motor, 2 kw The Three-Phase Wound-Rotor Induction Motor consists of a 4-pole machine rated at 2 kw. Each phase of the stator winding is accessible via the connection module to allow wye or delta connections. The rotor is wye connected to four slip rings to give access to all windings, including neutral. The winding dimensions permit the study of operation as a wound-rotor induction motor, a frequency converter, a phase-shifter, a position controller, a variable-coupling singlephase transformer, a three-phase transformer, and an asynchronous induction generator. The machine also has three search coils permitting observation of the flux distribution at one pole of the stator, at one tooth, and at the full-pitch of the rotor. Motor (Full Load) Connection Line Voltage Power Speed Current Torque 3 ~, wye connected 220/380 V 50 Hz 2 kw 1440 r/min 4.8 A Efficiency 76% Power Factor 0.8 Friction and Windage Losses Iron Losses Motor (Starting) Current Torque Resistances (per phase at 25 C) Stator Rotor Search Coils Stator - Full Pitch Rotor - Full Pitch Rotor - One Tooth 13.3 N m (117.7 lbf in) 190 W 65 W 19 A 16.0 N m (141.6 lbf in) 2.2 Ω 2.2 Ω 5 turns 5 turns 5 turns 830 x 400 x 605 mm (32.7 x 15.7 x 23.8 in) 92 kg (202.4 lb) Festo Didactic 21

22 Wiring Module for Wound-Rotor Induction Motor connections between power windings and search coils. The Wiring Module for Wound-Rotor Induction Motor consists of a connection module. It provides connection access to the Three-Phase Wound-Rotor Induction Motor from the Mobile Workstation through a flexible connecting cable. The module has ten 4-mm color-coded safety jacks for the power windings and six 2-mm jacks for the search coils. Jacks of different sizes prevent accidental 212 x 287 x 496 mm (8.3 x 11.3 x 19.5 in) 4.1 kg (9.0 lb) Synchronous Motor/Generator The Synchronous Motor/Generator consists of a 4-pole machine rated at 2 kw. Each phase of the stator winding is accessible via the connection module to allow wye or delta connections. The rotor winding is connected to two slip rings for external connection to a dc power source. A squirrel cage damper winding is inserted in the salient-pole rotor to produce induction-motor action, making the synchronous motor selfstarting. Features of the Synchronous Motor/ Generator used with the Wiring Module for Synchronous Motor/ Generator, Model 8508, include: A damping resistor connected across the rotor winding to limit induced voltage and increase the torque during motor start-up. A toggle switch connected in series with the rotor winding, to isolate the winding from the dc source during motor start-up. A normally closed push-button connected in series with the damping resistor, which enables students to measure the true exciting current. 22 Festo Didactic

23 A full-pitch stator pole and a rotor-pole search coil to allow observation of the flux distribution. Motor (Full Load) Connection Three-phase, wye connected Line Voltage 220/380 V 50 Hz Power 2 kw Speed 1500 r/min Current 3.6 A Excitor Current 0.55 A DC Torque 12.7 N m (112.4 lbf in) Efficiency 80% Friction and Windage Losses 110 W Iron Losses 80 W Motor (Starting) Current 18 A Torque 30 N m (265.5 lbf in) Generator Connection Three-phase, wye connected Power 1.5 kva Current 2.3 A AC Excitor Current 0.53 A DC Efficiency 81% Resistance Per Phase At 25 C (77 F) Stator 2.2 Ω Rotor 236 Ω Synchronous Reactance 77 Ω Excitor Inductance 21.9 H Search Coils Stator - One Pole - Full Pitch 5 turns Rotor - One Pole 5 turns Moment of Inertia kg m² (331.5 lb in²) 830 x 400 x 605 mm (32.7 x 15.7 x 23.8 in) 89 kg (195.8 lb) Wiring Module for Synchronous Motor/Generator connections between power windings and search coils. The Synchronous Motor/Generator consists of a connection module. It provides connection access to the Three-Phase Synchronous Motor/ Generator from the Mobile Workstation, Model 8110, through a flexible connecting cable. The module has eight 4 mm color-coded safety jacks for the power windings and four 2 mm jacks for the search coils. Jacks of different sizes prevent accidental 212 x 287 x 496 mm (8.3 x 11.3 x 19.5 in) Festo Didactic 23

24 4.1 kg (9.0 lb) Resistive Load, 2 kw The Resistive Load, 2 kw consists of five wire-round power resistors placed in parallel. Each resistor can be added to the circuit by means of a toggle switch. It is possible to vary the equivalent resistance to obtain nineteen steps of equal current increment. Each resistor is identified by a schematic symbol, the resistance value in ohms, and the current that will flow through the resistor when connected to a nominal voltage power source. Connections are made through 4 mm color-coded jacks. Resistors Number 5 Resistance Nominal Voltage Accuracy 5% Toggle Switch Number Load at Nominal Voltage Power Current Number of Steps Current Increment Inductive Load, 2 kw /440/220/220/110 Ω 220 V AC/DC 5 - connected in series with each resistor 55 to 1045 W 0.25 to 4.75 A 19 of equal increment 0.25 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 6.3 kg (13.9 lb) The Inductive Load, 2 kw consists of five iron-core power inductors placed in parallel. Each inductor is identified by a schematic symbol, the inductance value in henrys, the inductive reactance in ohms, and the current that will flow through the inductor when connected to a nominal voltage power source. Each inductor is switchable by means of a toggle switch. Connections are made through 4 mm color-coded jacks Inductors 24 Festo Didactic

25 Number 5 Reactance Nominal Voltage Accuracy 5% Toggle Switch Number Load at Nominal Voltage Reactive Power Current Number of Steps Current Increment Capacitive Load, 2 kw /440/220/220/110 Ω 220 V 50 Hz 5 - connected in series with each resistor var A 19 of equal increment 0.25 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 17.1 kg (37.6 lb) The Capacitive Load, 2 kw consists of five capacitors placed in parallel. Each capacitor is identified by a schematic symbol, the capacitance value in microfarads, the capacitive reactance in ohms, and the current that will flow through the capacitor when connected to a nominal voltage power source. A permanently connected discharge resistor reduces the voltage across each terminal to 5% of the applied voltage within 15 s after the load is disconnected from the supply. Each capacitor is switchable by means of a toggle switch. Connections are made through 4 mm color-coded jacks. Capacitors Number 5 Reactance Nominal Voltage Accuracy 5% Toggle Switch Number Load at Nominal Voltage Reactive Power Current Number of Steps Current Increment 880/440/220/220/110 Ω 220 V 50 Hz 5 - connected in series with each resistor var A 19 of equal increment 0.25 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 7.0 kg (15.4 lb) Festo Didactic 25

26 Single-Phase Transformer, 2 kw The Single-Phase Transformer module consists in three discrete windings. Each of them can be used as either a primary or a secondary which increases the number of laboratory applications. Its various taps allow it to be used with many different input and output voltages. Consequently, the single-phase transformer can be used for impedance matching and auto-transformer experimentation. By using multiple modules, students explore transformer phasing, distribution transformers, open and closed delta transformer configurations, delta-wye, wye-delta, wye-wye, and delta-delta connections. Other specialized transformer connections such as Scott (3-phase to 2-phase), 3-phase to 6-phase, and zigzag connections are also possible. Careful engineering detail has been given to these transformers so that the regulation curves produced by resistive, inductive, and capacitive loads are readily distinguishable. Connections are made through 4-mm jacks. Capacity Coil 1 Voltage Current Coil 2 Voltage Current 480 VA 220 V 50 Hz 2 A 380 V 50 Hz 1.15 A Taps 50 and 80% Coil 3 Voltage Current 220 V 50 Hz 2 A Tap 50% 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 13.4 kg (29.5 lb) DC Voltmeter/Ammeter The DC Voltmeter/Ammeter consists of one voltmeter, one milliammeter, and one ammeter. Ranges have been selected to facilitate the simultaneous measurement of the voltage, the shunt field current, and the armature current of the DC Motor/Generator, Model Connections are made through 4 mm color-coded jacks. An optional version of the DC Voltmeter/Ammeter, Model , is provided with a zero-center voltmeter scale for application in the 2 kw Electromechanical Training System. 26 Festo Didactic

27 Scales Voltmeter 0 to 40/400 V DC Center Ammeter 0 to 1 A DC Right Ammeter 0 to 10/15 A DC Accuracy 2% Type of Movement Arsonval 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 3.8 kg (8.4 lb) AC Ammeter Module, 2 kw The AC Ammeter consists of three separate multi-range ac ammeters for simultaneous measurement of threephase currents. Two of the three meters have identical ranges while the third instrument has one additional lower range. Connections are made through 4 mm color-coded jacks. Scales Left and Right Ammeters Center Ammeters Accuracy 2% Type of Movement Wattmeter / Varmeter to 0.25/5/15 A 50 Hz 0 to 0.5/2.5/5/15 A 50 Hz Moving vane and current transformer 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 4.7 kg (10.3 lb) The Wattmeter / Varmeter module is fitted with one wattmeter and one varmeter and is designed to indicate direct measurement of active and reactive power in balanced threephase circuits. Each meter has a zerocenter cable scale to show the direction of power flow. Its electronic design uses voltage and current sensors to sample line voltage and current. Voltage and current circuits are internally connected so that students only have to connect the "line" and "load" terminals of the module. Scales Wattmeter 4000 to 0 to 4000 W Festo Didactic 27

28 Varmeter 4000 to 0 to 4000 var Maximum Voltage 450 V 50 Hz Maximum Current 8 A Power Input 24 V 50/60 Hz Accuracy 1.5% Type of Movement Arsonval with electronic transducer 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 5.3 kg (11.7 lb) DC Breaker, 2kW The DC Breaker module consists of a one-pole thermal-magnetic circuit breaker specially designed to interrupt high dc currents. A typical application of this module is in the paralleling of two dc generators. Connections are made through 4 mm color-coded jacks Voltage Current 240 V dc 30 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 3.9 kg (8.6 lb) Synchronizing Module, 2 kw The Synchronizing Module consists of three indicator lamps and a three-pole circuit breaker-switch fitted to the module faceplate. The main function of this module is to indicate synchronism between two ac generators and to electrically interconnect the generators by closing the three-phase breaker-switch. Each phase leg of this module is then protected from over-current conditions. This module is also used to determine the phase sequence of a threephase circuit and to show the relative power level in ac and dc circuits. Connections are made through 4 mm color-coded jacks. Indicator Lamps Breaker Switch 10 W 380 V 10 A 380 V 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 28 Festo Didactic

29 3.9 kg (8.6 lb) Manual DC Motor Starter The Manual DC Motor Starter module is designed to start the DC Motor/ Generator, Model 8501, from a dc power source. The module consists of a manually operated handle, variableresistance starter. It can be wired as either a 3-or 4-point dc motor starter. When the motor starter is in the full run position, an electromagnet holds the handle in place. If loss of field occurs while the starter is connected in 3-point mode, the holding electromagnet is de-energized and a spring returns the starting handle to the off position. Connections are made through 4 mm color-coded jacks. Power Line Voltage Limiting Resistors Full Load Current Starting Current Breaker Field Current Breaker Number of Steps 5 Optimized for 2 kw motor 220 V DC 15/7.5/7.5/3.75/0 Ω 12 A 3 A 0.8 A Synchronous Motor Starter, 2 kw x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 5.6 kg (12.3 lb) The Synchronous Motor Starter is designed to start the Three-Phase Synchronous Motor/Generator, Model 8507, directly from the ac power network. The module consists of a 3- pole magnetic contactor and a built-in dc power source which applies dc voltage to the field winding when the rotor speed reaches approximately 90% of the machine synchronous speed. A pilot lamp indicates that the motor is synchronized with the ac power networkk when dc voltage is applied to the machine. Industrial push-button controls are mounted on the front panel of the module. The I button must be depressed and held until the Motor Synchronized indicator lights up (releasing the I pushbutton before the machine is synchronized prevents three-phase ac current from flowing into the synchronous machine). Connections are made through 4 mm color-coded jacks. Festo Didactic 29

30 Power Line Voltage Current Overload DC Output Voltage Field Current Optimized for 2 kw motor 220/380 V 50 Hz 4 to 6 A 220 V DC 0.7 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 8.8 kg (19.4 lb) Three-Phase Full-Voltage Starter, 2 kw The Three-Phase Full-Voltage Starter is designed to start the Four-Pole Squirrel-Cage Induction Motor, Model 8503, and Three-Phase Wound-Rotor Induction Motor, Model 8505, directly from the power line. The module consists of a 3-pole magnetic contactor with a variable overload relay. The components are interconnected to the line and load terminals. A power-on pilot lamp and I and O pushbuttons are also mounted on the module faceplate. The auxiliary contacts of the main contactor can be accessed for use as an interlock in control circuits. Connections are made through 4 mm color-coded jacks. Power Line Voltage Current Overload Optimized for 2 kw motor 220/380 V 50 Hz 4 to 6 A 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 4.8 kg (10.6 lb) Three-Phase Rheostat, 2kW The Three-Phase Rheostat module consists of three rheostats mounted on a common shaft directly controlled by a single knob on the module faceplate. The rheostats are electrically interconnected in a fourwire wye configuration and each leg is protected from over-current conditions by a thermal-magnetic circuit breaker. This module is mainly used for speed control of a Three-Phase Wound-Rotor Induction Motor, Model A limit switch is actuated when the knob of the rheostat is turned fully clockwise, corresponding to maximum resistance. This switch can then be used as an interlock with the Three-Phase Full-Voltage Starter, Model 8521, to make sure that the motor starts with a rotor resistance which provides maximum starting torque. This module can also be used for other applications where a variable power resistor is needed. 30 Festo Didactic

31 Variable Resistance (3) Range Power Current Limit Switch (Interlock) 0 to 15 Ω 135 W 3 A 3 A 480 V AC 154 x 287 x 460 mm (6.1 x 11.3 x 18.1 in) 6 kg (13.2 lb) Three-Phase Power-Factor Meter, 2kW The Three-Phase Power-Factor Meter consists of one meter providing a direct measurement of lagging or leading power factor in three-phase balanced circuits. Its electronic design uses voltage and current sensors to sample line voltage and current. Voltage and current circuits are internally connected so that students only have to connect the line and load terminals of the module. Connections are made through 4-mm colorcoded jacks. A 24 V ac power source (available from the Power Supply, Model ) is required to operate the unit. Scale Maximum Voltage Current 0.5 (lag) to1 to 0.5 (lead) 450 V 3 ~ 50 Hz 8 A Accuracy 1.5% Type of Load Type of Movement Power Input Field Rheostat, 2 kw ~, balanced Arsonval with electronic transducer 24 V 50/60 Hz 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 5.5 kg (12.1 lb) The Field Rheostat, 2 kw is designed to be used with the DC Motor/ Generator, Model 8501, and Three- Phase Synchronous Motor/Generator, Model The module consists of a variable power resistor, directly controlled by a knob on the module faceplate. It is protected from overcurrent conditions by a thermalmagnetic circuit breaker. This module is designed to vary the shunt field current of the DC Motor/Generator, Festo Didactic 31

32 Model 8501, and the exciter current of the Three-Phase Synchronous Motor/Generator, Model Connections are made through 4 mm color-coded jacks. Resistance Range Power 0 to 600 Ω 225 W 154 x 287 x 460 mm (6.1 x 11.3 x 18.1 in) 4.8 kg (10.6 lb) Variable Power Supply The Power Supply module is the primary component of the system. All associated equipment is powered by this power supply. A flexible, 5-wire power cord, terminated with a 5- prong, twist-lock plug and line cap, feeds the module. A mechanical interlock on the line cap prevents the removal of an energized Power Supply from its locked position in the workstation. The Power Supply requires a 3-phase, wye-connected, 5- wire service installation. An appropriate wall outlet is shipped with each Power Supply so that site power can be properly terminated to receive the power cord. In addition to the 3-phase legs and the neutral, a separate copper ground provides proper grounding for the Power Supply chassis and workstation cabinets, thus ensuring added safety for students using the equipment. The Power Supply provides fixed and variable ac and dc voltage sources all terminated with 4 mm safety jacks. They can be used simultaneously, up to a total load current equal to the rating of the fixed 3-phase output. Independent circuit breakers, reset at the front panel, protect the Power Supply input and outputs. Indicator lamps monitor the presence of input voltage in each phase. When a phase leg of the site power service is out, the lamp goes off to reflect this condition. A voltmeter, connected through a selector switch, monitors the outputs. The Variable Power Supply is available in different variants depending on ac power network voltages and frequencies. Because of this, the actual module may vary from the one shown in the picture. Manual Manual Description number Power Supply (Instruction Manual) D0 Module Requirements Typical Current 10 A per student group 32 Festo Didactic

33 AC Power Network Installation AC Power Network Connector NEMA L22-20 Outputs Fixed AC, 3 Phases Fixed AC, 1 Phase Variable AC, 3 Phases Fixed DC Variable DC Power Cord Length 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker 220/380 V 10 A 220 V 10 A 0 to 220/380 V 7 A 220 V 3 A 0 to 220 V 12 A 3 m (10 ft) Connector 277/480 V 15 A, NEMA L x 287 x 500 mm (12.1 x 11.3 x 19.7 in) 32.6 kg (71.9 lb) Automatic DC Motor Starter The Automatic DC Motor Starter is designed to allow the automatic starting of the DC Motor/Generator, Model 8501, by sensing the motor counter electromagnetic force (CEMF) to control the armature current. In the event of loss of field, the control circuit protects the motor against overspeed by removing power from the armature. Thermal/magnetic circuit breakers completely protect the starter. Connections are made through 4 mm color-coded jacks. Power Line Voltage Limiting Resistors Current Overload Field Current Breaker 2 kw 220 V DC 18.75/15/7.5 Ω 10 to 16 A 0.8 A 308 x 287 x 440 mm (12.1 x 11.3 x 17.3 in) 9.5 kg (20.9 lb) Festo Didactic 33

34 Digital Tachometer The Digital Tachometer indicates motor rotation speed either in a clockwise or counterclockwise direction. The measured speed is automatically indicated on a five-digit display and is updated every second to enable measurement of acceleration and deceleration. Coupling to the shaft of a motor is accomplished through a rubber tip attached to the Digital Tachometer. The optical sensor can also be used with a reflective tape to read motor speed. Designed to fit comfortably in either the right or left hand, the tachometer is constructed to withstand years of rugged use. Direction of Rotation Speed Range Accuracy Resolution (up to r/min) Resolution (1000 r/min and above) Sampling Time Display Memory Hold Time Power Accessories Included CW and CCW r/min (Contact Tacho) / r/min (Photo Tacho) 0.05% + 1 digit 0.1 r/min 1 r/min 1 s (for speeds > 60 r/min) 5 digits 5 minutes after measurement Four 1.5 V AA cells Rubber contact tip, rubber contact ring, instruction manual, storage case, reflective tape, and batteries 80 x 250 x 120 mm (3.1 x 9.8 x 4.7 in) 0.61 kg (1.34 lb) Speed Sensor / Tachometer the speed of an EMS machine constant. The Speed Sensor / Tachometer module is a speed sensor providing a voltage proportional to speed as well as a tachometer indicating the measured speed on an analog scale. The tachometer makes it possible to measure the rotation speed of rotating machines in any 2 kw Electromechanical Training System (EMS). The speed sensor can be used in any closed-loop control circuit that requires speed feedback to maintain 34 Festo Didactic

35 The Speed Sensor / Tachometer consists of a permanent magnet tacho-generator and an analog speed meter enclosed in a separate steel case. The tacho-generator is housed in an aluminum case which can be fastened to the front panel of any EMS machine. A mini-plug cable interconnects the tacho-generator to the speed meter through a mini jack mounted on its front panel. The Speed Sensor / Tachometer can measure speed in both directions and has two speed ranges. Two switches on the front panel of the speed meter allow selection of the direction of rotation and the speed range. A pair of 2 mm banana jacks, also on the front panel, provide a voltage proportional to speed (speed sensor output voltage). Range Direction of Rotation Output Signal Output Impedance Intended Location 0 to 2500 r/min Clockwise and counterclockwise 1 V DC / 1000 r/min 2000 Ω On a table 150 x 190 x 440 mm (5.9 x 7.5 x 17.3 in) 3.0 kg (6.6 lb) Coupler The Coupler consists of a rubber ring for in-line coupling of two 2 kw machines without slip. It also minimizes the vibrations created by the machines when they are not perfectly aligned. Material Rubber 105 x 105 x 55 mm (4.1 x 4.1 x 2.2 in) 0.2 kg (0.4 lb) Festo Didactic 35

36 Digital Multimeter The Digital Multimeter consists of an Amprobe AM-510 Tool Kit Digital Multimeter with Battery Test. It is ideal to perform voltage, current, and resistance measurements in exercises. Voltage Ranges Current Range Resistance Range V ac/dc 0-10 A ac/dc 0-40 MΩ 182 x 90 x 45 mm (7.17 x 3.54 x 1.77 in) 354 g (0.78 lb) Connection Lead Set The Connection Lead Set consist of PVC-covered, extra-flexible leads terminated with stacking 4 mm safety banana plugs. The leads are supplied in three or four different lengths, according to model variations, and are color-coded according to length. Certain model variations also include one or several of the following items: 2-mm banana plug leads of three different lengths (also color-coded according to length), a BNC-to-BNC cable, a BNC-to 2 mm banana plug cable, and a lead holder. The lead holder is an adjustable lead storage rack that can be mounted to the side of any EMS Workstation, providing 36 Festo Didactic

37 easy access and orderly storage of the leads. Lead Characteristics Cross Section Strands per Lead 651 Rated Current Rated Voltage Contact Resistance Number of 4-mm Leads Yellow, 30 cm (12 in) 17 Red, 60 cm (24 in) 15 Blue, 90 cm (36 in) 8 Lead Holder 2.5 mm2 (3875 mil2) 32 A 1000 V < 0.3 Ω 90 x 315 x 80 mm (3.5 x 12.4 x 3.1 in) 1.5 kg (3.3 lb) Optional Equipment Description Workstation (Optional) The Workstation is a fully assembled workstation that serves the same purpose as the Mobile Workstation, Model , but has no storage cabinet or pull-out work surface. This workstation is intended for use on a bench (not supplied) and is fitted with rubber feet to protect the bench top. Alternatively, this workstation can be mounted on either a Mobile Storage Cabinet, Model , to make a Mobile Workstation, Model , or on a Mobile Base, Model 88863, to make a mobile workstation without storage cabinet. In that case, it is possible to mount and lock a second Workstation, Model , on top of the first Workstation to double the space available for EMS modules. The Workstation consists of three rows of compartments designed to house EMS modules. Two of these rows have full-height compartments while the other row has half-height compartments. Each row of full-height compartments can accommodate up to three full-size EMS modules or six half-size EMS modules whereas the row of half-height compartments can accommodate up to three half-size EMS modules. Module Installation The EMS modules are guided into position along stainless steel guide rails. Separators between each bay of the workstation ensure perfect alignment of the EMS modules and allow their easy insertion in the workstation. A holding mechanism ensures that each EMS module stays in place once it is installed in a compartment of the workstation. Front-mounted push levers allow all EMS modules on a single row to be released for easy removal. Festo Didactic 37

38 Safety Padlock Bars Two safety padlock bars on the front of the workstation prevent students from removing EMS modules during laboratory exercises. The bars can be removed and locked to the side of the workstation when the safety lock is not necessary. Additional Information Six holes in the rear panel of the workstation allow connection to a power supply, as well as the connection of 2 kw machines to their interconnection modules. Assembly of the workstation before painting ensures that each EMS module in the workstation is correctly grounded. Manual Manual Description number Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 38 Festo Didactic

39 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules Optional Equipment Qty Description Model number 1 Industrial Controls Single-Rail Workstation A0 1 4 Industrial Controls Double-Rail Workstation 3105-B0 1 Dust Cover for Workstations Mobile Base Mobile Storage Cabinet Intended Location On a table able to support the weight of the workstation and installed equipment 890 x 935 x 465 mm (35.0 x 36.8 x 18.3 in) 31.8 kg (70 lb) Full-Size Blank EMS Module (Optional) The Full-Size Blank EMS Module is used to fill unused locations in a workstation, preventing students from accessing electrical or moving parts inside the other modules. Combined with the use of safety bars to prevent students from removing modules, blank EMS modules ensure student safety during lab exercises. 308 x 287 x 415 mm (12.1 x 11.3 x 16.3 in) TBE 3 This add-on workstation allows modules from the Industrial Controls Training Systems, Models 8036, to be installed in the EMS workstation. Refer to the 8036 datasheet for more information. 4 This add-on workstation allows modules from the Industrial Controls Training Systems, Models 8036, to be installed in the EMS workstation. Refer to the 8036 datasheet for more information. Festo Didactic 39

40 Half-Size Blank EMS Module (Optional) The Half-Size Blank EMS Module is used to fill unused locations in a workstation, preventing students from accessing electrical or moving parts inside the other modules. Combined with the use of safety bars to prevent students from removing modules, blank EMS modules ensure student safety during lab exercises. 154 x 287 x 410 mm (6.1 x 11.3 x 16.1 in) TBE DC Voltmeter/Ammeter, 2 kw (Optional) The DC Voltmeter/Ammeter module is fitted with one voltmeter, one millimeter, and one ammeter. Ranges have been selected to facilitate the simultaneous measurement of the voltage, shunt field current, and armature current of a dc motor/generator. Star (Wye)/Delta Starter, 2 kw (Optional) The Star (Wye)/Delta Starter is designed to start the Four-Pole Squirrel-Cage Induction Motor, Model 8503, or Three-Phase Wound-Rotor Induction Motor, Model 8505, directly from the ac power network via the star (wye)/delta connection. It includes two magnetic contactors, a variable overload relay, a time-delay relay, and push-buttons that start and stop the motor. The control circuit connects the windings of the motor in a star (wye) configuration to start the motor. A short time lag follows the starting instant, while the windings are connected in a delta configuration to run the motor. Pilot lamps indicate power and starting conditions. A circuit breaker protects the control circuit and automatically stops the machine in the event of an overload. Power Line Voltage Current Overload Wye (Star) Starting Time 2 kw 220/380 V 50 Hz 8.3 A 20 s 154 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 40 Festo Didactic

41 5.9 kg (13 lb) Rotor Positioner (Optional) The Rotor Positioner is a gear box which allows the rotor of a 2 kw machine to accurately lock in any given position. The rotator is mounted on a steel support that is connected to the carriage of the 2 kw machine. The coupling between the machine shaft and the rotor positioner is accomplished by the Coupler, Model The zero indicator can be adjusted to any position by turning the slip-fit coarse and fine dials. Ranges/Precision Coarse Fine Zero Indicator 0 to 360 (6.0 increments) 0 to 6 (0.5 increments) Adjustable 385 x 160 x 155 mm (15.2 x 6.3 x 6.1 in) 5.0 kg (11.0 lb) Festo Didactic 41

42 Phase-Shift Indicator (Optional) The Phase-Shift Indicator is designed to measure the rotor phase angle of the Three-Phase Synchronous Motor/ Generator, Model It consists of a transparent plastic disc, calibrated in electrical degrees, and a metal mounting bracket. It attaches to the end of the machine carriage with slide fasteners. The rotor phase angle can be read by illuminating the end of the machine shaft, through the calibrated disc, with a strobe light (the Stroboscope, Model 8922). The resulting value corresponds to the measured phase shift for a 4-pole ac machine, in electrical degrees. Range 180 to 0 to 180 (electrical degrees for a 4-pole machine) 408 x 150 x 25 mm (16.1 x 5.9 x 1.0 in) 1.5 kg (3.3 lb) Stroboscope (Optional) The Stroboscope is a portable strobe lamp equipped with a handle for easy carrying. It is powered through a flexible power cable fitted with a grounded ac plug. The stroboscope has two modes of operation that are switch-selectable. In the internal mode of operation, the strobe lamp is triggered from the ac line frequency. In the external mode of operation, the strobe lamp is triggered by a separate signal source, from 1 Hz to 120 Hz, applied to the external input terminals. In this mode, the stroboscope can be used as a "strobe tachometer" to measure slip speed. Any function or audio frequency (AF) generator module can be used as the external signal source. The strobe fires at the precise instant the triggering signal rises and passes through zero. The Stroboscope, when used with phase shift indicators (Model 8906 or 8909), can accurately measure the rotor pole shift of a synchronous motor/generator, as well as the slip speed of non-synchronous machines. 42 Festo Didactic

43 Power Requirements Current Service Installation Triggering Frequency Internal External External Triggering Voltage Sinusoidal Square Wave External Trigger Input Impedance Internal Intended Location 0.15 A Standard single-phase ac outlet 25/50 Hz Hz V rms 10 V p-p minimum 50 kω On a table able to support the weight of the equipment 172 x 153 x 195 mm (6.8 x 6 x 7.7 in) 2.2 kg (4.8 lb) Digital Multimeter (Optional) The Digital Multimeter is a 3-1/2 digits hand-held measuring instrument. It can measure dc as well as ac voltages, dc currents, resistances, diodes, and transistors. It is equipped with a Data Hold mode and it comes with test leads, a holster, a 9 V battery, and the operating manual. Festo Didactic 43