S E R I E S. Electric Motors

Transcription

1 S E R I E S

2 COMPANY PROFILE Established in 1965 in the town of Formigine, Motovario has grown to become one of the most important Italian and European manufacturers of gear units for industrial and civil applications. In 1998 Motovario purchased Spaggiari Trasmissioni, a wellknown company with thirty years experience in mechanical technology. Main production work is carried out in the establishments of Formigine and Ubersetto, with 50,000 square meters of facilities and a staff of around years after its foundation, Motovario has proved its capacity to grow in step with the swings of the market, giving itself a flexible structure and consolidating its place as a market leader in its sector. Motovario is present in all the main world markets with a network of qualified dealers and agents and with its own subsidiaries in France, Spain, Austria, Germany, England, Denmark, China, USA and India. With its carefully tuned organization, Motovario can guarantee customers firstrate service in terms of quality, on time delivery of supply and technical assistance. Thanks to more than 30 qualified assembly centres, Motovario can supply highly customized products and is a worldlevel competitor in many fields of application. Motovario Assembly Centres (MAC) are located in many countries, like: Australia, Belgium, Bulgaria, China, Korea, France, Indonesia, Israel, Italy, Malaysia, Poland, Portugal, Spain, Sweden, Taiwan, Thailand, Ukraine, USA and India, with many more being planned in the near future. Motovario Gear Solutions Pvt Ltd was incorporated on 6th July 011 as a wholly owned Subsidiary of Motovario SpA, Italy. The Indian subsidiary occupies a 10,000 sq ft of floor area for Assembly Centre and 7500 sq. ft of Office, Design and Planning. The registered office is located at Kolkata beside the prestigious Indian Institute of Management, Joka on Diamond Harbour Road. We have our set up of State of Art authorized assembling plant (MAC) in Kolkata using the best of the technologies available worldwide. We are ready to take any challenges and available for customer services 4 x 7 basis. We have our own Branch offices, Dealer Network & service Centres situated all over India and we are authorized to export to our neighboring countries namely Srilanka, Pakistan, Bangladesh, Nepal and Bhutan.

3 General Features Mounting Arrangement IEC lnduction Motor Mechanical Features Electrical Features TEFC Three Phase Motor Performace Data Sheet IE1 Dimensions Foot Mounted Motor Dimensions Flange & Face Mounted Motor Crane & Hoist Duty Motor TBS Three Phase Brake Motor Single Phase CSCR Motor

4 General Features Conformity with Standards Derating Factor Threephase and singlephase asynchronous electric motors, totally enclosed, with fan cooled ventilation, cage rotor in diecast aluminium alloy or aluminium, insulation class F, protection degree IP 55, standardised height to centre and dimensions from 56 to 50, standardised powers from 0.06 to 55kW. Standard production series Threephase, 1pole, standard efficiency TS Threephase, 1pole, high efficiency TH Threephase, pole D Singlephase S Singlephase, high starting torque, (CSCR) Threephase, 1pole, brake motor, standard efficiency TBS Threephase, 1pole, brake motor, high efficiency TBH Threephase, pole, brake motor DB Nominal Characteristics Nominal characteristics: total of numerical electrical and mechanical values (power voltage, frequency, current, speed, power delivery,...) together with their duration and sequence in time, attributed to the machine and indicated on the nameplate, in conformity with the specified conditions. In particular, the following values in relation to the operation of the motor; the same symbols are used in the performance tables. Our motors comply with the following Indian and international standards, viz.: IS 35 IS 131 IS 3 IS 1075 IS 1065 IS 1615 IS 4691 VDE 0530 BS 613 IEC Pub7 IEC 34 UL/CUL 1004 NES 63 EEDQ71 (R3) Three phase induction motors. Dimension of threephase foot mounted A.C. induction motors. Dimension of flange mounted A.C. induction motors. Mechanical vibration of rotating electric machines with shaft heights 56 mm & higher measurement evaluation and limits of vibration severity. Permissible limits of noise level for rotating electrical machines. Induction motorenergy efficient three phase, squirrel cage specification. Degrees of protection provided by enclosures for rotating electrical machines. Specification of electrical machines. Electrical performance of rotating electrical machines. Dimension of output ratings for rotating electrical machines Frame 56 to 50. Rotating electrical machines. American/Canadian safety standards. NAVAL standards. NAVAL standards. The ratings and performance values are specified at 50 C ambient temperature and below 1000 meter altitude. However same motor can be used with higher ambient temperature and altitude but it has to be derated as specified in table. Altitude above sea level in meter Ambient Temperature in C % Output of Motor % Output of Motor Tolerances Power factor Creep at full load and at operating temperature Power delivery > 1kW Power delivery < 1kW Torque with rotor locked Sag torque Maximum torque 15% of (1η) 1/6 of (1cosφ) 0.0 min 0.07 max Moment of inertia ±10% Sound pressure level Height of axis H Flange centering diameter N Outer diameter of shaft on delivery end D Up to 8mm Over 8mm Key dimensions F x GD Keyway width F TOLERANCES ±0% ±30% 0% 15% 5% 15% 10% +3dBA 0.5mm. J6 j6 k6 h9 N9 1

5 Formulas related to Motor Operation MEASUREMENT SYMBOLS AND UNITS OF DESCRIPTION MEASUREMENT nominal voltage V n [V] concatenated voltage at the machine's terminals at nominal power nominal current I n [A] current absorbed by the motor at nominal power starting current I s [A] line current absorbed by the motor at nominal starting voltage and frequency nominal torque M n [Nm] torque delivered by motor shaft at nominal conditions starting torque M s [Nm] torque delivered by the motor shaft at starting sag torque M i [Nm] minimum asynchronous torque under normal running conditions developed by the motor at speeds from zero to maximum increases does not apply to asynchronous motors whose torque decreases continuously as speed increases Mmax maximum torque M max [Nm] Ms Mi Mn load rpm synchronous speed nominal speed ω s [rad/s] n s [rpm] n n [rpm] ω n [rad/s] synchronous motor shaft speed under no load; the following relations apply: n s = 10 f n / p [rpm] ωs = 4π f n / p [rad/s] ωs = n s / 9.55 [rad/s] where: fn = nominal power supply frequency [Hz] p = number of motor poles it follows that: poles rpm at 50Hz rpm at Hz motor shaft speed in nominal conditions at nominal power Motor Protection (IP) Apart from electrical protection being rotating at comparatively high speed, protection against accidental human contacted, ingrees of solid particle like dust, entry of water is important. As per EN 0345 (IS 4691),scheme of IP protection of 1st digit and nd digit is as per the table st Digit Protection against solids larger than 50mm Protection against solids larger than 1mm Protection against solids larger than mm Protection against solids larger than 1mm Protection against dust ingrees Dust tight motor (total protection against dust) nd Digit Protection against dripping of Water Protection against dripping of water when motor is tilted at 15 Protection against spraying of water Protection against splashing of water from any side Protection against water jet from any side Protection against heavy seas

6 Mounting Arrangement 3

7 IEC lnduction Motor Comply with IEC/EN Standard Electrical Mechanical IEC/EN 0341 IEC 07 IEC/EN 0341 IEC/EN 0345 IEC/EN IEC/EN 0346 IEC 0348 IEC/EN 0347 IEC 0341 IEC/EN 0349 IEC

8 IEC lnduction Motor Mechanical Features 5

9 IEC lnduction Motor Electrical Features GS the motor 6

10 TEFC Three Phase Motor Range Motors with standard duty cycles, 3 phase squirrel cage 0.06 kw to 55 kw with standard speed and various type of constructions are available from frame sizes 56 to 50M. Standards Performance confirms to IS: 35 and dimensions according to IS 131 and IS: 3. Ratings Motors are rated for continuous duty at an ambient of 50 C and site altitudes of upto 1000 m above sea level. Any other duty available on request. Voltage and Frequency Motors are designed for 415v+ 10%, 3 phase 50 Hz + 5 k supply. Any other voltage/frequency available on request. Enclosure Motors have IP 55 degree of protection as a standard feature. This degree of protection confirms to IS Other enclosure available on request. Motors Frame Motors are supplied in a robust, rugged cast iron frame with intergral feet. However, motors upto 11 frame are in aluminium frame. Class of Insulation Motors are provided with class F insulation. Other class of insulation available on request. Winding Protection Embedding of PTC thermistors in the stator winding feasible on request at extra cost. Type of Construction Standard motors with single shaft extension are for horizontal foot mounting (B3 as per IS 131). Other types of construction available on request. Cooling and Ventilation Type of cooling is as per IS : 636. All TEFC motors have an external bidirectional centrifugal fan mounted on shaft. Noise Motors are designed and produced for low noise levels. Our stator stacking system eliminates electromagnetic noise caused by loose stamping. All rotors are balanced on electronic dynamic balancing machines. Driving pulley and bearing seats are ground finished for vibration free running. Terminal Box Standard location of the terminal box is on the R viewed from Driving end. Terminal box can be rotated in steps of 90 degree. At aluminum pressure die cast body will have T.Box on Top. Bearing System Frames upto 50M have pre lubricated bearing as a standard feature, However regreasing facility can be provided on request. Earthing Terminals All motors are provided with minimum earthing terminals, one in the terminal box and one on the stator housing. Paint Standard paint is suitable for tropical conditions. However special paint is available on request. Range 1. Standard Motors 3phase TEFC, squirrel cage induction motors from 0.06 kw to 55 kw in, 4, 6, and 8 poles, as per constructions shown in figure on next page.. Standard flange mounted motors as per IS 3 (B5). 3. Standard face mounted motors as per IS : 3 (B 14). 4. Foot cum flange mounted motors B3B5. 5. Foot cum face mounted motors B3B Crane duty motors, with 30,, 100, 150, 300 starts/stops per hour with 15, 5, 50, & 100% CDF. Duty cycles S, S3, S4 & S5. 7. Motors fitted with brake. (Brake Motors) 8. Torque motors : Torque from 7 kg. cm. (0.07 kgm) to 150 kgcm ( kgm), with 1/ hour safe stall time. 9. Textile Motors Loom motors 0.55 kw to kw in 6 & 8 poles. 10. Two Three speed motors (a) Constant H.P motors. (b) Constant torque motors. 11. Motors for monoblock pumps. 1. Surface cooled motors. (TE). 13. Motors with special shaft extension, single/double with special diameter. 14. Cooling tower motors in 4, 6, 8, 10 and 1 poles. 15. Agricultural motors. Temperature Rise and Insulation Class Normally motors are insulated to class "F" with a temperature rise restricted to class "B" and Class "H" insulation can be produced if required. Class of Insulation B F H Max. Permissible Temp. Limit C Max. Permissible Temperature rise for winding at ambient temperature in C 40 C C C

11 8 GS Rated Output KW HP Frame S 100L 11M 13S 13M 13M 1M 1M 1L 1L 00L 00L 5M Rated Current Rates Speed RPM Power factor Efficiency % Ratio of starting current to rated current Ratio of starting Torque to rated Torque Ratio of pull out Torque to rated Torque Rated Torque in NM Gd Kgm Performace Data Sheet Three Phase IE1 4 Pole Basic design Operating Characteristics Pole Basic design Operating Characteristics Rated Output KW HP Frame S 90L 100L 11M 13S 13M 1M 1M 1L 1M 1L 00L 5M 5M 50M Rated Current Rates Speed RPM Power factor Efficiency % Ratio of starting current to rated current Ratio of starting Torque to rated torque Ratio of pull out Torque to rated Torque Rated Torque in NM Gd Kgm

12 Performace Data Sheet Three Phase IE1 6 Pole Basic design Operating Characteristics Rated Output Frame Rated Current Rates Speed RPM Power factor Efficiency % Ratio of starting current to rated current Ratio of starting Torque to rated Torque Ratio of pull out Torque to rated Torque Rated Torque in NM KW HP S 90L 100L 11M 13S 13M 1M 1L 1L 00L 00L Gd Kgm 8 Pole Basic design Operating Characteristics Rated Output Frame Rated Current Rates Speed RPM Power factor Efficiency % Ratio of starting current to rated current Ratio of starting Torque to rated Torque Ratio of pull out Torque to rated Torque Rated Torque in NM KW HP B S 90L 100L 100L 11M 13S 1M 1M 1L 1L 00L Gd Kgm 9

13 10 GS Dimensions Horizontal Foot Mounted Motors ( B3 Construction ) Frame A B S 90L 100L 11M 13S 13M 1M 1L 1M 1L 00L 5M 50M ØK HA H L AD/ LO AA AB AC BB D/DA E/EA F/ FA G/ GB GA/ GC LC U M4 M5 M6 M8 M8 M10 M10 M1 M1 M16 M16 M16 M16 M0 M0 M0 BA Foot Details Shaft Details F GA G D U FA GC GB DA U D E C B BB L LC EA DA AC BA H LO HA AA AB A ØK 4HOLES AD

14 Dimensions Flange & Face Mounted Motors (B5 & B14 Construction) GS 11

15 Crane & Hoist Duty Motors Standard & Electrical Features Supply Voltage and Frequency Standard supply voltage and frequency are 415 +/ 10% and 50 Hz +/ 5% with a combine variation of voltage and frequency +/ 5%. If required, motors with 110V, 0V, 40V, 3V, 4V, 690V with 50/Hz supply can be given on request. Duty Crane and hoist duty motors are designed upon duty cycle and number of starts/stops. Duty details are given below. Optional If required, motors with thermister, thermal switch and space heaters with a termination in the same terminal box can be manufactured. Duty S1 Load Electric Losses Temp Duty S N Load Electric Losses Temp Time Time Ṇ Period of cycle N 0 Max 0 Max N : Operation at Constant Load 0 Max : Maximum Temp. attained N : Operation at Constant Load 0 Max : Maximum Temp. attained during duty cycle in c Duty S4 Load Electric Losses Temp Duty S5 Load Electric Losses Temp Period of cycle N R Time Period of cycle D N R Time 0 Max 0 Max D : Starting period N : Operation Under Rated condition R : At rest & deenergized 0 Max : Maximum Temp. attained during duty cycle in c Cyclic Duration = factor D + N D + N + R X 100% D : Starting period N : Operation Under Rated condition R : At rest & deenergized 0 Max : Maximum Temp. attained during duty cycle in c Cyclic Duration = factor D + N D + N + F + R X 100% Duty S3 Load Electric Losses Temp Period of cycle N R Time 0 Max N : Operation at Constant Load R : Operation at rest & deenergized 0 Max : Maximum Temp. attained during duty cycle in c Cyclic Duration = factor N N + R X 100% Duty S6 Load Electric Losses Temp Period of cycle N R Time 0 Max N : Operation at Constant Load v : Operation on no load 0 Max : Maximum Temp. attained during duty cycle in c Cyclic Duration = factor N N + V X 100% 1

16 TBS Three Phase Brake Motors Brake Motors are offered for various application requiring almost instantaneous stopping of driven load. These motors are offered in frame sizes 63 to 1 L. Their operation is of 'fail safe' type, i.e., the brake is applied when power to the motor is switched off or if power failure occurs. Construction A Brake Motor is an integral combination of an A.C. induction motor and a disc type fail safe electromagnetic brake unit. it consists of following. A.C. induction motor. Encapsulated brake coil housed in the armature plate. Brake liner attached to the armature disk. The Rectifier unit is provided inside the Terminal Box. It converts A.C. supply into D.C. supply for Brake coils. Operating Principles of DC Fail Safe Brake How the Brake Sets As shown in Figure, Brake produces its stopping torque by the use of multiple springs (4) exerting pressure against the armature plate () The armature plate, in turn, is forced towards the friction plate (8) for mounting flange (10) compressing the dual faced friction rotor (6) between the armature plate and the friction plate (or mounting flange). Figure illustrates the position of the armature plate, friction rotor and friction plate in the set position. The rotor is internally splined to the hub (7) which is keyed to the shaft. How the Brake Release Enerzing the coil (1) with the proper DC voltage produces an electromagnetic force which attracts the armature plate (), closes the gap "a" and allows the friction rotor (6) to rotate freely. The axial movement of the friction rotor is accommodated by splined hub (7) Special Features Being simple and ruggedin construction, these motors need very little maintenance. In the rare event of a failure, repair is simple and easy. "No separate DC supply is necessary for brake coil energisation, because a rectifier unit is provided. The rectifier is closed type and fixed between the two terminals inside the terminal box. Being closed type, it is very easy to replace. Variastor is provided across the DC terminals to protect the brake coil and rectifier against line and switching surges. Special brake liner is used, which ensures that, the braking torque value remains quite stable throughout the use. Compensation for liner wear is easily done by advancing the position of the nut by tightening. The design of Brake motor facilitates a very easy replacement of armature disc and brake liner assembly. For crane and hoist duty applications Brake Motors are offered with special rotors. These rotors are specially suited for 53 and S4 duty normally encountered in hoist and crane applications. Mechanical manual release of the brake as an optional feature is given on request. In case of power failure, the brake can be released manually with a lever. Application Brake Motors are used for numerous applications. A few of them are listed below: 7 3 Textile Machinery, Machine Tools, Printing Machines, Cranes and Hoists, Material Handling Equipments, Leather Processing Machines, Geared Motors, Cable Reeling Drums, Rolling Mills and many others as per customer's requirements. 5 A.C. Switching A.C. Switching has a considerable effection the 'turn off time' of brake coils. It is not recommended where fast reaction times are required. Brake coil 6 a D.C. Switching Turn off times are much shorter than A.C. Switching but for larger brakes with higher power coils one of our\ suppressor & capacitor across the switch is recommended. Suppressor c Brake coil 13

17 Performace Data Sheet Brake Motor TBS of Frame 63~1 The brake motors of the TBS series result from coupling an asynchronous 14

18 Series Single Phase Capacitor Start and Capacitor Run Induction Motor 15

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20 Sold & Serviced by Motovario Gear Solutions Private Limited C.S. Plot No.51, Mouza Hanspukuria, Diamond Harbour Road, Thakurpukur, Joka, Kolkata (India) Tel /97 Web: