Simoprime A4 24 KV Air Insulated Switchgear

Transcription

1 Simoprime A4 24 KV Air Insulated Switchgear Loss of Service Continuity category: LSC2B Partition Class: PM Internal Arc Classification: IAC A FLR 25kA 1s (IEC ) Operation and Maintenance Instructions Order No: Revision: 02 Issue: 2008/11

2 About These Instructions These Instructions do not purport to cover all details or variations in the equipment, nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. For details about technical design and equipment like e.g. technical data, secondary equipment, circuit diagrams, or other switchgear types, please refer to the Siemens Sales Department. The switchgear is subject to continuous technical development within the scope of technical progress. If not stated otherwise on the individual pages of these instructions, we reserve the right to modify the specified values and drawings. All dimensions are given in mm. The content of this instruction manual shall not become part or modify any prior or existing agreement, commitment or relationship. The Sales Contract contains the entire obligations of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Any statements contained herein do not create new warranties or modify existing warranty.

3 Table of Contents TABLE OF CONTENTS SAFETY INSTRUCTIONS GENERAL DESCRIPTION...5 STANDARDS AND SPECIFICATION...5 SERVICE LOCATIONS...5 PERSONNEL SAFETY...5 Switching Operations with Door Closed... 5 Interlocking of Door/Truck... 5 Protection against electrical shock and ingress of foreign bodies... 5 EQUIPMENT RELIABILITY...5 Switchgear interlocking... 5 Electrical Strength... 5 Highest level of independence from climate and environment... 5 Maintenance... 5 Availability... 5 OPERATIONS...5 Moving Truck inside a panel... 5 Removing Truck from panel... 5 Sequence for removing the Truck... 5 Remote control... 5 PANEL OPTIONS AND ACCESSORIES...5 CB Compartment... 6 Contactor Compartment... 5 Metering Compartment... 6 Cable Compartment... 6 Busbar Compartment INSTALLATION...8 FOUNDATION...8 TRANSPORT UNITS...8 PACKING AND STORAGE...8 ELECTRICAL SERVICE ROOM DIMENSIONS...9 UNLOADING AND POSITIONING...9 Required equipment for lifting:... 9 Unloading with a mobile crane... 9 Unloading with a forklift truck... 9 MOVING THE TRANSPORT UNIT...9 Checking for damage in transit and completeness... 9 Removing the transport units from their wooden pallets... 9 ASSEMBLING THE SWITCHBOARD...10 Removal of withdrawable truck Bolting the panels together Fixing the switchboard to the foundation Bolting the Busbars together Bolting the main earth bar section together Making the HV cable connections Earthing of the switchboard Other work to be carried out Error! Bookmark not defined. 3. COMMISSIONING TESTING OPERATION With door open: With door closed CHECKING THE ACCESSORIES OPERATION TRUCK Positions of the Truck Transferring the Truck from the test/isolated position to the service position Moving the Truck into test/isolated position from the service position CIRCUIT BREAKER OPERATION Circuit breaker operating mechanism Charging the closing spring by hand: Mechanical operation of the VCB in the panel, with door closed Operational Indication EARTHING Operation of Earthing switch Disconnection of earthing switches HV COMPARTMENT DOOR Opening the door Closing the door MAINTENANCE INSPECTION SCHEDULE Every year Every 5 years CLEANING Cleaning agents: LUBRICATION Recommended neutral greases are: SPARE PARTS Replacement of parts BRIEF OPERATING INSTRUCTION SPOILER INSTALLATION INSTRUCTION FUSE REPLACEMENT INSTRUCTION FOUNDATION DETAIL Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 3

4 Safety Instructions 1. Signal terms and definitions As used in these instructions, means that personal injuries can occur if the relevant precautionary measures are not taken. Observe the safety instructions. As used in these instructions means that damage to property or environment can occur if the relevant precautionary measures are not taken. Observe the safety instructions. 2. Due Application The switchgear corresponds to the relevant laws, prescriptions and standards applicable at the time of delivery. If correctly used, they provide a high degree of safety by means of logical mechanical interlocks and shockproof metal enclosure of live parts. The perfect and safe operation of this switchgear is conditional on : Correct operation and installation as per installation instructions and observance on the following standards. 1. VDE0100-IEC VDE VDE 105 Qualified personnel. Proper transportation and correct storage of the switchgear. Correct installation and commissioning with observance to applicable local laws and safety. Diligent operation and maintenance. 3. Qualified personnel As used in these in this instruction, these are persons who are familiar with the transport, installation, commissioning, maintenance and operation of the product and have appropriate training and qualifications for their work. To get appropriate qualifications about transport, installation and commissioning, this person has to take part in a training program for assembly and installation of Simoprime SA4. The training provides detailed information on installation and operation, assembly as well as fault removal in the primary part of Simoprime SA4 switchgear. The trained participants receive a certificate after successful completion. This certificate authorises the participants to work on their own on the Simoprime SA4 switchgear (Primary Part) For further information about the assembly and installation training please contact; PT. Siemens Indonesia Power Transmission and Distribution Customer Service Jl. A. Yani Kav B Pulo Mas, Jakarta Indonesia Tele: Fax: Homepage: Steve.Young@siemens.com In addition, the qualified person has the following qualifications: Training and instruction or authorisation to switch on, switch off, earth and identify power circuits and equipment / systems as per the relevant safety standards. Training and instruction or authorisation in accordance with the relevant safety standards for the care and use of appropriate safety equipment. Training in first aid and behaviour in the event of possible accidents. 4. Five Safety Rules of Electrical Engineering Isolate the working area Secure against reclosing Verify safe isolation from supply Earth and short-circuit the working area Cover adjacent life parts or protect them with barriers. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 4

5 1. GENERAL DESCRIPTION Standards and Specification Simoprime is a switchgear designed for indoor installation, and complies with the following current standards and specifications: IEC publication with Annex A, B and IEC Publication DIN VDE 0670, Parts 6, 601 and 1000 PEHLA guidelines No. 4 In accordance with the harmonization agreement reached by the EEC countries, their national standards conform to IEC Publication Service Locations Simoprime switchgear can be used as indoor equipment in accordance with DIN VDE 0101: Outside lockable electrical service locations at places which are not accessible to the public. Enclosure of switchgear can only be accessed with tools. Inside lockable electrical service locations. A lockable electrical service location is a place outdoors or indoors reserved exclusively for housing electrical equipment and kept under lock and key. Authorised persons may only open the lock. Access is restricted to authorised personnel and properly instructed persons. Others may only enter under the supervision of authorised personnel or properly instructed persons. Personnel Safety Switching Operations with Door Closed Personal safety is achieved by: The capability of the switching device to move between the service and the isolated position (test position)-whilst the door remains closed. Mechanical opening and closing of the earthing switch with the door closed Verification of safe isolation from supply: - Pole-by-pole testing with an optional capacitive voltage detector with the door closed. - Independently operated padlockable shutters to prevent accidental contact with live components. Interlocking of Door/Truck The door is incorporated in the interlocking concepts as follows: Opening is possible when the Truck is locked in the Test/Isolated position The Truck can be moved from the Isolated position to the service position, and reverse, only when the door is closed. The earth switch is accessible only when the switching device is in the isolated/test position. Protection against electrical shock and ingress of foreign bodies External protection is provided by complete enclosure of panels in all operating conditions Internal protection is provided by arc-resistant (optional) features. Degree of protection: Standard version IP4X. Equipment Reliability Switchgear interlocking Interlocks generally are mechanically driven with preventive key-operated access shutters, meaning devices such as operating keys/cranks can only be inserted when the interlocking conditions have been fulfilled. The earth switch drive is mechanically interlocked against the truck and is rendered inaccessible when the truck is in service position. Electrical Strength Adequate electrical strength of Simoprime A4 is assured by: Sufficiently large air gaps between phases and earth. Suitable electrode forms. These design features allow conductor insulation materials to be reduced to the minimum. Highest level of independence from climate and environment Ribbed cast resin insulators and bushings, with high resistance to pollution. Total closed enclosure under all operating conditions. A space heater in both of the circuit breaker and cable compartments for cubicles installed in humid environments, preventing electrical faults caused by condensation forming on the insulating parts. Maintenance Minimum maintenance is ensured by: Totally closed enclosure under all operating conditions. Use of proven, maintenance- free vacuum switching devices. Availability Easy procurement of parts for extension and refurbishment through the use of: Standard insulators Standard vacuum switching devices Standard copper sections Standard instrument transformers Operations Moving Truck inside a panel Little effort is required by hand to move the Truck inside a panel with the aid of continuous screw mechanism. Removing Truck from panel The Truck is light and easy to remove from the panel: By one man Without special tools Regardless of floor surface Sequence for removing the Truck Move the truck into the Isolated/test position, Open the circuit breaker compartment door, Unplug the LV control plug, Unlock the Truck,(4drive box bolts) Fix the individual ramps onto the rails, Remove the withdrawable truck from the panel proper. Remote control Electric remote control, e.g. from a central control room can be provided. Emergency manual operation is possible under all conditions. Figure 1: Individual Ramp fixed to panel Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 5

6 Panel Options and Accessories CB Compartment Standard: Withdrawable Vacuum Circuit breaker type 3AH with trip, and close coils, and spring charging motor Variations: Circuit Breaker options: Range of operating voltages Second trip coil Undervoltage release Electrical Lockout Extended auxiliary Switches Withdrawable Voltage Transformer Range of voltages Open delta winding Primary Fuses, DIN style Metering Compartment Standard: Fixed Voltage transformer, three single phase devices each with a single secondary winding Variations: Voltage Transformer options: Range of voltages Open delta winding Option: Withdrawable Voltage Transformer Truck, three single phase devices each with a single secondary winding and primary fuse, DIN style if required. Cable Compartment Standard: Cable entry from bottom, earth bar, and bushings to the switching device compartment. Variations: Cable Fault making earth switch (25kA/1s) Current Transformers Block type Voltage transformer Block type Cable connection Connection of up to 4 cables per phase Lightning arrestor Gland plate Steel Aluminium Stainless steel Brass Cable entry Top (adds additional 600mm cable box) Busbar Compartment Standard: Droppers: 1250/2500A Busbars: 1250/2500A Low Voltage Compartment Standard 700 mm high complete with Gear Plate Figure 2: Side view of Incomer Panel A)-Spoiler Assembly. B)-Busbar Comp. C)-Cable Comp. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 6

7 Product Range Designation CB1 CB2 CB 3 CB4 CB5 CB6 LBS Electrical properties Rated Voltage 24 kv 24kV 24 kv 24kV 24 kv 24 kv 24 kv Rated current (panel) < 800 A < 1250 A < 1250 A < 1250 A < 2500 A <2500 A 630 A Frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz Short circuit current (1/3 sec ) 16 ka 16 ka 20 ka 25 ka 20 ka 25 ka 20 ka (1/3s) Rated peak current 40 ka 40 ka 50 ka 63 ka 50 ka 63 ka 50 ka Busbar current 2500 A 2500 A 2500 A 2500 A 2500 A 2500 A 2500 A Rated Power Frequency Withstand Voltage 50 kv 50 kv 50 kv 50 kv 50 kv 50 kv 50 kv Rated Lightning Impulse Withstand Voltage 125 kv 125 kv 125 kv 125 kv 125 kv 125 kv 125 kv Dimensions Width (mm) Height (mm) Depth (mm) Weight (kg) Standard fitout VCB 3AH 3AH 3AH 3AH 3AH 3AH Simosec LV compartment, (700mm) - Option fitout CT s Block Block Block Block Block Block Ring Top entry cable* - PT Cable fixed - PT on VCB Truck - Cable earth switch Fuses Key Interlock Switching device Key Interlock Earth Switch Lightning arrestor *Additional panel depth 600mm Designation BS1 BS2 BS3 BS4 BS5 MET1 FLBS Electrical properties Rated Voltage 24 kv 24 kv 24 kv 24 kv 24 kv 24 kv 24 kv Rated current (panel) 1250 A 1250A 1250A 2500 A 2500 A A Frequency 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz 50/60 Hz Short circuit current (1/3 sec) 16 ka 20 ka 25 ka 20 ka 25 ka 25 ka 20 ka (1/3s) Rated peak current 40 ka 50 ka 63 ka 50 ka 63 ka As per fuse As per fuse Busbar current 1250 A 1250 A 1250 A 2500 A 2500 A 2500 A 2500 A Rated Power Frequency Withstand Voltage 50 kv 50 kv 50 kv 50 kv 50 kv 50 kv 50 kv Rated Lightning Impulse Withstand Voltage 125 kv 125 kv 125 kv 125 kv 125 kv 125 kv 125 kv Dimensions Width (mm) Height (mm) Depth (mm) Weight (kg) Standard fitout VCB 3AH 3AH 3AH 3AH 3AH - Simosec LV compartment, (700mm) - Option fitout CT s Block Block Block Block Block - Ring PT on VCB Truck (No VCB) - Fuses Key Interlock Switching device Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 7

8 2. INSTALLATION All work that is likely to produce dust or dirt must be carried out prior to installation of the panel. A power source and an adequate foundation, made in accordance with the submitted drawings should be available prior to delivery of the panels. The floor should be level and even so that the transport units can be easily moved on rollers or similar devices. Foundation The foundation should be prepared in accordance with the specifications and drawings submitted. Where false floors are used care should be taken to ensure the floor can support the static loads nominated in the drawings. The fixing rails should be installed in accordance with the drawings provided, and appropriately fixed. For the concrete floor, the floor tolerance is as per DIN where the level difference between highest and lowest points on the floor surface must not exceed 1 mm per 1 m length, and for the total length of the switchboard must not exceed 2mm. Higher tolerances should be compensated. A sample of the floor cut-out is shown. For full details please refer to the supplied drawing of requirements. Figure 3: Fully assembled Incomer panel Transport Units The switchboard will be dispatched in preassembled transport units consisting of a maximum of 2 ready-assembled switchgear cubicles, complete with trucks. Packing and Storage Destination Packaging Storage Location Inland delivery Each transport unit is bolted to a sturdy wooden pallet and covered by a plastic sheet as a protection against rain and dust and packed in normal wooden case Overseas delivery Each transport unit is packed in a seaworthy case; enclosed in a Vacuum shrunk plastic sheet, sealed airtight and includes desiccant bags Duration Indoors under cover. 2 months from shipment date Indoors under cover. 4 months from shipment date Switchboard operational accessories are packed separately or supplied in one of the cubicle transport units (see the dispatch Note). Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 8

9 Electrical service room dimensions Height of the switch room with 700 mm high LV compartment 2850* mm Width of control aisle 1500 mm Clearance between the wall and 150 mm the cubicle rear and sides * There must be a minimum of 600 mm clearance above the LV chamber. Unloading and Positioning Do not unpack before unloading the transport units. Take care not to damage the plastic sheet since it provides environmental protection for the switchgear. Required equipment for lifting: A mobile crane or a chain pulley block of 5 tons capacity for unloading the transport units. Lifting tackle A fork-lift truck with a fork length of about 1.5 m, for handling the switchgear inside the building Hydraulic jacks or winches and caterpillar roller pads and accessories The handling/transport gear must meet the site requirements with regard to its construction and load bearing capacity Unloading can be done with either a mobile crane or a forklift truck. Unloading with a mobile crane Suspend the lifting tackle from the crane and position it over the transport unit Attach the ropes to the tackle and position, and spread them so that they cannot exert pressure on the switchpanels sides. Attach the ropes to the wooden pallet Carefully raise the transport unit and check to see that it is correctly balanced, if necessary lower the transport unit and correct any imbalance by repositioning the ropes on the lifting tackle. Lower the transport unit to the ground Unloading with a forklift truck Dismantle and remove the crates just before installation Checking for damage in transit and completeness Immediately after unloading, and unpacking the switchgear, check the switchgear for any damage as well as its completeness. If there is any damage, record it immediately (without delay). If the damage was caused en route, record it in front of the forwarding/insurance agent. In addition check all unpacked items against the supplied despatch documentation. Ensure that the intra panel seals are fitted and undamaged. Removing the transport units from their wooden pallets Move the Trucks from the Service position (as supplied) to the Isolated position and open the switchgear compartment doors (see next page, Removal of withdrawable truck ). Remove the truck from the panel. Loosen and remove the lower rear cover to gain access to the cable compartment. Unscrew the bolts securing the switchpanels to the wooden pallet. The bolts are located in the cut-outs in the floor rails front and rear. Close the switchgear compartment doors. Place a rod through the lifting eyes provided, across the transport unit, and raise from pallet. Remove the wooden pallet. Lower the transport unit as far as possible and place it on two wooden beams if it is located above its site or place on four roller pads if it is in front of its site. In the latter case roll the units to their installation position site. Then place planks and channels in foundation cut-outs that have to be crossed. Raise the transport units, as described above, and remove the roller pads. Lower the transport units as far as possible and place them on two wooden beams. Now raise the units; first on one side and then on the other, using roller-type crowbars; pull out the planks and lower the units onto the clean foundation. Position the crowbars only at the corners of the transport units below the vertical frame members. Transport units with maximum of two panels can be unloaded using a forklift truck. The transport unit must be correctly balanced. Moving the transport unit Move the transport units as close as possible to the switch house and put them down. Move each transport unit into the building Put the cubicles down on the cleaned site or at least immediately in front of it in the correct order, leaving a clearance of about 0.5 meters between them. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 9

10 Assembling the switchboard Removal of withdrawable truck Put the withdrawable truck into the Isolated/test position (see section 4, withdrawable truck ) Open the circuit breaker compartment door (see section 4, To open the door ). Disconnect the LV plug and place it in its holder under the LV compartment. Unbolt the Truck. Position the individual ramps on the two sides. Slowly remove the truck away from the panel. Remove the individual ramps. Remove the other trucks in the same manner. Never handle a withdrawable part by its contact arms Bolting the panels together Put the first transport unit is in its final position and position the other units on the foundation rails in the correct order but with a clearance of approximately 500 mm between them, it is preferable to install the central transport unit first. Then the other units can be installed on its left and right in proper sequence. This method should be applied for a board with 20 or more panels. Procedure: Align the central transport unit on its foundation. The switchgear cubicle must be at the correct level and be absolutely vertical, ensuring the door mark lies within the upright mark. If necessary place shims under the frame upright and under the bottom rails near the 14mm diameter cut-outs for the foundation bolts. Bolt the panel securely to the foundation rails, as described below. Remove the busbar partition cover located in the VCB compartment (above the busbar shutters). Loosely install the loose supplied Busbars into panel, access is from left or top, DO NOT TORQUE. Clean contact points with light emery and apply a light coat of grease. Remove the bolts fitted at the left-hand end walls of each transport unit as viewed from the front. Check that the supplied seals are undamaged. Move up the second transport unit. Align this on the foundation, and ensure the busbars are properly aligned; raise it to the correct level and ensure that the panels stand vertically. (Use shims if necessary as for the first transport unit.) Fix securely to the foundation rails, as above. Using the same bolts and nuts, removed above, to join the transport units. Recheck that the panels are vertical. If necessary slacken the screws and seal the gaps with Silicon Sealant. Move up the other transport units in sequence, and following the same procedure bolt the cubicles, and busbars, together. Other work to be carried out Checking the HV connections On all HV cables, check The tightness of bolts The earthing of cable sealing end The core spacing on three core cables and the correct fitting of anti-magnetic clips on single-core cables. Fixing the switchboard to the foundation The panel bottom plate has three holes for fixing purposes. Final fixing to the rails is using M12 bolts. Embed anchor-bolts in the foundation (through the holes) or drill the appropriate holes in the foundation rails (false floor). Insert shims between the foundation and bottom rails near the cut-outs. Tighten the screws without distorting the panels. Bolting the Busbars together The busbar/feeder connection joints use M12 bolts and Belleville. The recommended torque is 70 Nm. The Busbars of adjacent units must be joined together using the Busbars and hardware supplied. The Busbar chamber partition cover in the VCB compartment has to be removed to approach the main Busbars. The Busbars of the switchpanels forming a transport unit are already bolted. Re-fix the partition cover after the Busbars are bolted together, and have been Torque tightened. Bolting the main earth bar section together The main earth bars of the transport units must be linked together. One of the two parts to be bolted together is already fitted with a link. This must be undone, passed through the partition and bolted to the adjacent earth bar sections. The cover on the sidewall should be properly adjusted after joining the earth bars. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 10

11 Making the HV cable connections The lower end cable terminals of each switchgear cubicle are fitted with the appropriate bolts for the cable lugs. The termination compartment takes cables and sealing ends. Due attention should be given to the instructions of cable end termination kit manufacturer. Ensure that the cables are properly fixed to the cable support bracket supplied, to eliminate the potential weight applied to the connection point. Un-drilled gland plates forming the floor in the termination compartment must be removed prior to making the cable termination, and to make the cut-outs suitable for the cable entry, and must be refitted in the cable compartment. To approach to cable terminations, remove the cable chamber partition cover in the VCB chamber, which should be refitted after the termination is made. All openings made for cable entry must be properly sealed. Earthing of the switchboard Connect the earth terminals of at least one switchgear cubicle to the station earth (two may be required to suit local guidelines). Termination facility for earth connection is provided on the earth busbar mounted in the cable chamber. Checking the bolted joints Check the power and auxiliary circuit connections of switching devices at random, but examine all terminal block connections making sure that the blocks are correctly labelled and replace any missing labels by referring to the circuit diagram. Cleaning the switchboard Using a soft dry cloth clean all post insulators, insulating bushings and Busbars in all compartments. Do not use any abrasive chemical or detergents to clean installed parts. Use only distilled water if necessary. Inserting the truck Open the front door Place the individual ramps in position. Place the truck in front of the corresponding panel. Put the truck inside the panel and push it in as far as possible. Place the ramps back into its normal position Fix truck to side interlock points and torque to maximum 10Nm Connect the LV control plug. Lock in position. Close the door Protection against environment Damaged sections of the paint finish may only be touched up with original part Fit the parts supplied to protect against the ingress of reptiles. Check in case they are removed during installation Close all the doors and covers properly Space heaters For cubicles installed in humid atmosphere, space heaters are fitted in the circuit breaker and cable compartments. The heaters should be switched ON before taking the switchgear cubicle into service. Service conditions such as high humidity (above 70%), low load currents (less than 50% of nominal rating), or the absence/non-switching of space heaters, can form condensation of water on the insulation components, leading to electrical faults. Connection diagram for busbars >1250A 3. COMMISSIONING Testing Operation It is assumed that the commissioning of the panels will have a clearly defined set of procedures, and checks however we would recommend that the following activities be included in this process. A separate protocol has been supplied with this instruction covering aspects of Installation and commissioning, which we deem to be mandatory to ensure the proper operation of the panels. This is the minimum recommended by Siemens. With HV door open: The motor operating mechanism must start immediately and charge the breaker closing spring after connection of the LV plug, and assuming all protective devices are closed and an auxiliary supply is available. Open and close the breaker several times Pull off the LV plug & charge the breaker closing spring by hand (see section 4, circuit breaker operating mechanism ). Operate the circuit breaker. Refit the LV cable plug. With HV door closed Each panel should be tested as follows: Place the truck in the Isolated position Switch in the auxiliary and control supply Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 11

12 If earth switch is installed ensure it is open. Operate earth switch from panel front, (as long as no high voltage is applied). Transfer the truck to the Service position Open and close the breaker, (as long as no high voltage is applied). Without using any force, check all mechanical and electromechanical interlocks for satisfactory function. Check whether the positions of the truck are indicated correctly (if the appropriate position switches are fitted, refer to the circuit diagrams). Checking the accessories The accessories must be easily available in the switch room. These accessories generally will include: Hand crank for transferring the truck between positions Hand crank for charging the breaker closing spring. Double-bit key, for locking the handoperating mechanism, and accessing the HV compartment Drive Handle for operation of the Earth Switch, where fitted. Operating instructions Closing and Opening Rods Individual Ramps 4. OPERATION Truck Positions of the Truck SERVICE POSITION The circuit breaker is connected to the Busbars and the outgoing circuit. The auxiliary circuit is connected through LV plug and socket. TEST POSITION The circuit breaker is Isolated from the Busbars and the outgoing circuit. Segregation as specified in IEC is maintained. The LV circuits are connected through LV plug and socket. When LV plug and socket are connected: The breaker compartment door can be opened. The circuit breaker can be tested/operated. Functions such as ON/OFF indication and electrical interlocks can be tested. ISOLATED POSITION The circuit breaker is Isolated from the Busbars and the outgoing circuit. Pulling out the LV plug disconnects the LV circuits. When LV plug and socket are disconnected The breaker compartment door cannot be closed, whilst the truck is inside Instructions for transferring of a Truck by manual racking: 1. Lock the hand racking mechanism, operated with a double-bit key 2. Operated by hexagon shank for fitting the hand crank. CORRESPONDING POSITION: POSITION OF DOUBLE-BIT KEY IN LOCK (1) Test/Isolated position (locked) Manual racking Service position (locked) Transferring the Truck from the test/isolated position to the service position Normal Operations 1. Turn double-bit key from by to Insert and turn handcrank As far as possible and remove it SOCKET (2) Closed Open Closed 3. Turn double-bit key from by 90 Ensure that the truck has been fully inserted, and its fixing bolts properly tightened. Make sure that the circuit breaker is open, the LV plug and socket are connected and locked. The breaker compartment door is closed. Ensure that the cable earth switch has been opened, and is off. Insert the double bit key Rotate through 90 to Manual Racking from Test Isolated position (locked). Insert the hand crank to the hexagonal shank and continue to turn it clockwise until it reaches its stop, then remove it. Rotate it through 90 from Manual Racking from Service Position (locked), and remove it Opening for hand racking is now closed. The hand racking mechanism is locked out. Moving the Truck into test/isolated position from the service position. Normal operations 1. Turn double-bit key from by to 2. Insert and turn handcrank As far as possible and remove it to 3. Turn double-bit key from by To Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 12

13 Ensure that the circuit breaker is open Insert the double-bit key Rotate it through 90 from Service position (locked) to Manual Racking. The hexagon shank opening is now accessible. Insert the hand crank to the hexagonal shank and continue to turn it anti-clockwise until it reaches its stop, then remove it. Turn the double-bit key counter clockwise through 90 from the position Manual Racking to Isolated position (locked) and remove it. OPERATING MECHANISM: Turn the crank until the symbol Spring Charge appears in viewing window on the Spring Charge indicator. The operator is not at risk if the motor supply recovers, since the hand crank free wheels. Remove the crank handle. Mechanical operation of the VCB in the panel, with door closed Use the mechanical operating rods, supplied as standard accessories, to operate the VCB ON and OFF push buttons. If necessary charge the closing spring manually if LV plug has been disconnected in isolated position. Operational Indication Windows are provided in the HV Door to allow visual confirmation of position, as well as details of VCB status, and operation counter Additional information on the VCB can be found in the separately supplied instructions. The opening for hand racking is now closed. The hand racking mechanism is locked out. Removing the LV plug Move the Truck to the test position Open the breaker compartment door Unlock the plug and socket connector by turning down the clip. Pull the plug out and attach it to the holder, which is fixed bottom of the LV compartment. Connecting the LV plug Insert the plug into the socket and lock them together with the clip. Close the breaker compartment door. Circuit Breaker Operation Circuit breaker operating mechanism The operating mechanism for the circuit breaker is a stored-energy type. For the electrically operated breakers, a motor automatically charges the closing spring after each ON switching operation. If the motor supply should fail, the closing spring can also be charged by hand. The tripping spring is charged each time the breaker is closed. Charging the closing spring by hand: PROCEDURES: If the breaker compartment door: Closed (Service position), turn plate so that it clears the opening, insert the hand crank and fit it to the breaker. Open (Isolated position), fit the hand crank directly to the breaker operating mechanism in the opening. Earthing Operation of Earthing switch Earthing with mechanical earthing switch Ensure that the truck is in test/isolated position. If the truck is in service position then access to the operating drive mechanism of the earth switch will be closed / inaccessible. This ensures that the earth switch can only be operated if the truck is in test/isolated position. Lock the truck in test/isolated position. Then remove the double bit key. The earth switch operating mechanism is now FREE and the earth switch handle can be inserted. Turn the earth switch handle in the direction shown on the panel to switch ON the earth Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 13

14 switch. This is 90 to the right (clock wise). The handle has to be moved firmly in this one direction only and maximum force to be applied is no more than 60 Nm. When the handle stops the earth switch operation position indicator goes from 0 to 1 Whilst the cable earth switch is applied ( ON ) the trucks are prohibited from moving from test/isolated position to Service position. The double bit key cannot be turned to expose the manual racking hexagon shank. Prior to earthing cables it must be ensured that the cables are not and cannot be energized from the other end. Place warning labels and Tags at necessary locations. Disconnection of earthing switches Insert the earthing switch handle in position. Turn it in counter clockwise direction until it stops. Maximum force applied should be no more than 60 Nm. Withdraw the handle. The earth switch operation position indicator goes from 1 to 0 Remove warning labels and tags from the necessary locations HV compartment door The door can be opened and closed when the withdrawable part is in the test position and the plug-and-socket connector for the LV cables have been connected. Opening the door Insert the double-bit key in the slot Turn the double bit key by 90 counter clockwise,lift the knob and pull the door along with the key. Turn the key in the reverse direction by 90 Remove the key. Closing the door Insert the double bit key in the slot Turn the double bit key by 90 in counter clockwise direction, lift the knob and shut the door. Push knob down to secure door. Turn the key in the reverse direction by 90 Remove the key Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 14

15 5. MAINTENANCE Inspection schedule Every year A general visual inspection of all parts/supports Check to see whether the accessories are complete and in proper order. Lubricate the wheels and moving parts of the truck and interlocking plate. Every 5 years In addition to every year check Transfer the truck to the isolated position. Test operate the circuit breakers Remove the trucks and carry out all maintenance work, also on the switching devices. Clean the panels and check the connections Lubricate all bearing surfaces, bearings and articulated joints. Reinsert the trucks Check the switch panels functions and put the board back into service If work has to be carried out in the panels, isolate the board; ensure that it cannot be made live again. Check the isolated state and earth and short-circuit the feeders, and where applicable check the Busbars. Adhere to all regulations and safety measures. Maintain and service the built-in equipment, e.g. circuit breakers, vacuum contactors, voltage transformers, current transformers, relays, meters, protective devices, etc., in accordance with their operating instructions. Before removing the front plate of the breaker operating mechanism, discharge the closing and tripping springs. Only standard tools are required. Put the switchgear back into service as described under Commissioning section above. Service the switchgear at the shorter intervals if the air is moist, full of dust or is otherwise polluted. The cause of any disturbance or short-circuit must be determined immediately and damaged parts replaced, regardless of whether an inspection is due or not trichloroethylene Small brushes Dusters Vacuum cleaner Caution Trichloroethylene, Perchlorethylene and tetrachloroethylene and similar other agents have a harmful effect on cast-resin parts and must not come into contact with them. Cast resin parts should be cleaned with either a clean dry cloth or cloth moistened with distilled water. Silver plated and other contact surfaces to be cleaned with either a clean cloth or light emery. Lubrication Immediately after cleaning: Lubricate the isolating contacts and their mating contacts with neutral grease. Apply a film of neutral grease to the bearings and articulated joints of the operating mechanisms, to the withdrawable parts and shutters, and to the door hinges and locks. Using a wooden spatula to lubricate auxiliary switches of the truck with grease. Recommended neutral greases are: Centoplex 24DL For shafts, joints, hinges etc Longterm 2 Plus For El. contacts, and truck mech. Barrierta 1 EL For agressive environs in lieu Longterm 2 plus Spare Parts Only authentic recommended spares should be used. Contact the nearest Siemens office for the same. Replacement of parts Items such as post insulators, bushings, mating contacts, measuring instruments, current transformers etc., can be replaced. If replacement is likely to prove difficulties, ask the nearest Siemens representative to send personnel. The representative will also assist you in deciding what spare parts to keep in stock. When ordering spare parts and units, please give the following details: Type and serial number of the equipment (see name plate) Exact description of the unit or part, referring to the appropriate operating instructions where applicable, or to a drawing, sketch or circuit diagram. Cleaning Cleaning agents: Perchlorethylene Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 15

16 BRIEF OPERATING INSTRUCTION TRUCK POSITION FRONT DOOR POSITION DESIRED POSITION OF TRUCK & CB FROM TO OPERATION OF KEY & CRANKING LEVER IN CB COMPARTMENT INITIAL TEST (DISCONNECTED) CLOSED TEST (DISCONN.) MOVE FROM TEST (DISCONNECTED) 1. INSERT KEY TURN 90 TO SERVICE (CONNECTED) CLOSED TEST (DISCONN.) SERVICE (CONN) 2. INSERT CRANKING LEVER, TURN TILL STOP 3.REMOVE CRANKING LEVER LOCK IN SERVICE POSITION 1. TURN KEY 90 CLOSED TO CLOSE CB SERVICE (CONN.) 2. REMOVE KEY! 1. Insert mechanical operation ROD PRESS ON PB MECHANICAL OPERATION OF CB IN SERVICE POSITION CLOSED (SERVICE) CB OPEN (SERVICE)CB CLOSED ON 2. Remove Mechanical operation Rod 1. Insert Mechanical Operation Rod PRESS OFF PB TO OPEN CB (SERVICE) CB CLOSED (SERVICE) CB OPEN OFF 2. Remove Mechanical Operation Rod MOVE FROM SERVICE (CONNECTED) 1. INSERT KEY TURN 90 TO TEST (DISCONNECTED) CLOSED SERVICE (CONN.) TEST (DISCONN.) 2. INSERT CRANKING LEVER TURN TILL STOP 3. REMOVE CRANKING LEVER LOCK IN TEST POSITION (DISCONNECTED) CLOSED TEST (DISCONN.) 1. TURN KEY REMOVE KEY Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 16

17 SPOILER INSTALLATION INSTRUCTION Figure 5: Completed Spoiler Assembly. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 17

18 Switchgear extension The switchgear can be extended on both sides without having to modify existing panels. Please contact your local Siemens Partner for switchgear extensions and component replacements. Disposal This switchgear Simoprime A4 is an environment compatible product. The switchgear is made of sheet steel. The doors and lateral switchgear end walls are powder coated with resistant epoxy resin material. The switchgear materials should be recycled if possible. The switchgear can be disposed of in an environmentcompatible manner in compliance with existing local legislation. The components of the switchgear can be recycled as mixed scrap; however, dismantling as far as possible into sorted scrap with residual mixed scrap portion is the more environment-compatible way. Electronic scrap has to be disposed of in accordance with the existing local regulations. The switchgear consists of the following materials: Sheet Steel Copper Aluminium Epoxy Resin Cast Resin Fibre-reinforced plastics Rubber materials Ceramic Materials Lubricants Bolts, washers, nuts, rivets made of steel. Note These instructions do not purport to cover all details or variations in equipment, nor to provide for every possible contingency to be met in connection with the installation, operation, or maintenance. Should further information be required, or problems arise which are not covered in sufficient detail for the purchasers purposes, then the matter should be referred to the local Siemens Sales office. The contents of these instructions shall not become part of, or modify any prior, or existing agreement, commitment, or relationship. The Sales contract contains the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens. Statements contained herein, neither create new warranties, nor modify existing agreements. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 18

19 Foundation Details 800mm Panel 1000mm Panel PT. Siemens Indonesia Tele: Power Transmission and Distribution Fax : Medium Voltage Thevar.Tharmalinga@siemens.com Jl. A. Yani Kav B Homepage: Pulo Mas, Jakarta Indonesia. Operating and Maintenance Instruction for Switchgear type Simoprime A4, Rev: 02 19