EL 12 E3K. EL 24kV B785 ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH. Operating Instruction for DRIESCHER - Circuit - breaker panels

Transcription

1 EL Operating Instruction for DRIESCHER - Circuit - breaker panels EK for fixed mounting type WL withdrawable design type WEL withdrawable type in - or - compartment design EK, EK B785 EL kv ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH D-8566 MOOSBURG TEL FAX infoservice@driescher.de

2 Operating Instruction Withdrawable Design Type WEL All switching activities, including the traversing of the circuit breaker into disconnected position, should be carried out with the front door closed so as to ensure maximum operator safety. It will be possible within a very short period of time to withdraw the circuit breaker for service and maintenance purposes. For this, either a service truck (page ) or an auxiliary truck (page 5). Both are equipped with a docking facility and are hence stable, adjustable for height, and operator-friendly. The service truck (page ) also has a hydraulic device to lift and to lower the circuitbreaker Picture: Withdrawable design circuit-breaker panel Operation. The circuit-breaker can be moved into the operating position and into the connecting position either electrically by means of a control unit or manually by means of a hand crank.. For actuating the circuit-breaker (electrically or manually), the energy-storage mechanism must be charged. Immediately after the control line has been placed, the energystorage mechanism will wind up again into position.. Through the inspection window, the condition of the energy-storage mechanism 7 (charged / not charged) and the switching position 6 ( = closed / 0 = opend) can be seen.. All switching operations can be manually actuated, e.g. in case of failure of supply voltage: Picture : Withdrawable design circuit-breaker panel with open panel door It is possible to close and open the circuit-breaker with the mounted auxiliary operating device 8, but the last switching has to be an opening operation. The energy-storage mechanism can be charged by means of a hand crank on the manual winding mechanism 9. The circuit-breaker can be manually removed and inserted by means of the hand crank. The circuit-breaker can only be removed and inserted in the opened condition! 5. The position of the circuit-breaker (inserted = / removed = 0) is shown If desired, the earthing switch can be interlocked with the circuit-breaker and can be operated electrically or manually by means of an rotary handle.

3 Instructions for Use Service Truck Type WEL: Circuit-breaker section, in withdrawable-unit design, with a lateral view of the service truck Withdrawal and Insertion of the Circuit-Breaker. Change-over from remote to local control.. Open circuit-breaker.. Withdrawal switchgear truck (disconnected position).. Close earthing switch. 5. Insert insulating plate 5 (not necessary in case of - or - compartment design!). 6. Open door. 7. Pull plug, and bring into position. 8. Bring up service truck (pumping motion 6 ), until insertion and docking above the interlocking device is possible. 9. Let service truck, through lowering (rotary lever 5) latch home into interlocking device. 0. Draw out switch until interlocking device on service truck latches home.. Bring up service truck (pumping motion, 6 ), and move it away.. On inserting, bring up service truck above interlocking hooks, and dock.. On lowering the service truck, it should be ensured that the interlocking hooks lock wit hin the section. If docking is carried out properly, it will be possible to insert the circuitbreaker, through releasing the interlocking device, as far as it will go into the section.. Connect control line, and latch. Immediately after the control line has been placed, the energystorage mechanism 7 will wind up again into position. 5. Close door, remove insulating plate 5, and open earthing switch. 6. Now the circuit-breaker may be put back into operation, through local or remote control.

4 Operating Instruction Fixed mounting Type WL All switching activities, including the traversing of the circuit breaker into disconnected position, should be carried out with the front door closed so as to ensure maximum operator safety. It will be possible within a very short period of time to withdraw the circuit breaker for service and maintenance purposes by means of an auxiliary truck. The service truck (page ) cannot be used for this type WL. The auxiliary truck is equipped with a docking facility and is hence stable, adjustable for height, and operator-friendly Picture : Circuit-breaker panel type WL Picture : Circuit-breaker panel type WL with open front door Operation. The circuit-breaker can be switched to ON or OFF position 0 locally (manual) or by means of remote control unit.. For actuating the circuit-breaker the energy-storage mechanism must be charged. After the connection to the voltage supply through the control line, and after each operation the energy-storage mechanism is charged through the motor drive.. Through the inspection window, the condition of the energy-storage mechanism 9 (charged / not charged) and the switching position 8 ( = closed / 0 = opend) can be seen.. The energy-storage mechanism can be charged manually by means of a hand crank on the manual winding mechanism in case of failure of supply voltage. 5. Switch disconnector 6 and earthing switch can also be operated electrically or manually by means of an actuating crank. Attention! Switch disconnector, earthing switch and circuit breaker can be interlocked all together on desire. Therefore, a faulty operation is practically impossible.

5 Operating Instruction for auxiliary truck Picture 5: Connection of the auxiliary truck to the interlocking 5 6 Withdrawal and Insertion of the Circuit-Breaker. Change-over from remote to local control.. Open circuit-breaker 0.. Open switch-disconnector 6.. Close earthing switch. 5. Insert insulating plate 5 (not necessary in case of - or - compartment design!). 6. Open door. 7. Pull plug, and bring into position. 8. Remove interlocking rope of the switch-disconnector at the indicated place. 9. Dock the auxiliary truck. Push the interlocking hooks into the openings until an interlocking of the levers 6 is possible through turning about 90 to the inside. 0. After removing the fixing screws 7 draw the circuit-breaker on the auxiliary truck.. Interlocking through turning the handles 6 about 90 to the outside, at the same time the circuit-breaker is fixed through the support 5 on the auxiliary truck.. Drive away auxiliary truck. Picture 6: Interlocking of the auxiliary truck to the circuit-breaker panel type WL.When inserting the circuit-breaker dock the auxiliary truck and push the interlocking hooks into the openings until an interlocking through turning of the handles 5 about 90 to the inside is possible..push circuit-breaker from the auxiliary truck into the panel and secure with fixing screws Connect control line, and latch. Immediately after the control line has been placed, the energystorage mechanism will wind up again into position. 6.Fix interlocking rope at the indicated place. 7.Close door, remove insulating plate 5, open earthing switch and close switch-disconnector 6. 8.Now the circuit-breaker may be put back into operation, through local or remote control. 5

6 Operating Instruction - or -compartment design Type EK or Type EK All switching operations as well as the moving of the circuit-breaker into the connecting position are done behind the closed front door and are only possible under certain requirements to guarantee the highest possible protection of persons. The circuit-breaker can be removed for service and maintenance purposes in a very short time. For this, either a service truck (page ) or an auxiliary truck (page 5) can be used. Both are equipped with a docking facility and are hence stable, adjustable for height, and operator-friendly. The service truck (page ) also has a hydraulic device to lift and to lower the circuit-breaker. The operation for the withdrawable design with - or -chamber compartment is except point 5 identical to type EL (page ). For type EK and EK no insulating plate is inserted, because the compartment is effected automatically through closing and opening metal shutter in front of the contacts (point 5 on page is inapplicable) Picture 7: Circuit-breaker panel type EK with chamber compartment Picture 8: Open circuit-breaker panel type EK with chamber compartment without circuit-breaker 6

7 Operating Instruction - or -compartment design Type EK or Type EK Busbar chamber Circuit-breaker chamber Partition chamber of cable feeder Automatically opening and closing metal shutter Low-voltage compartment or secondary device module Type EK: -compartment with circuit-breaker in OFF position Type EK: -compartment with service truck, circuit-breaker in operating position Operation (for page 6, EK and EK). The circuit-breaker can be moved into the operating position and into the connecting position either electrically by means of a control unit or manually by means of a hand crank.. For actuating the circuit-breaker (electrically or manually), the energy-storage mechanism must be charged. Immediately after the control line has been placed, the energystorage mechanism will wind up again into position.. Through the inspection window, the condition of the energy-storage mechanism 7 (charged / not charged) and the switching position 6 ( = closed / 0 = opend) can be seen.. All switching operations can be manually actuated, e.g. in case of failure of supply voltage: It is possible to close and open the circuit-breaker with the mounted auxiliary operating device 8, but the last switching has to be an opening operation. The energy-storage mechanism can be charged by means of a hand crank on the manual winding mechanism 9. The circuit-breaker can be manually removed and inserted by means of the hand crank. The circuit-breaker can only be removed and inserted in the opened condition! 5. The position of the circuit-breaker (inserted = / removed = 0) is shown If desired, the earthing switch can be interlocked with the circuit-breaker and can be operated electrically or manually by means of an rotary handle. When removing the circuit-breaker by means of auxiliary or service truck please pay attention to pages and 5! 7

8 Our range of products includes: Medium-voltage systems Single-bus and duplicate-bus switchgear Non-withdrawable, withdrawable, and truck-type units Compact switchgear assemblies Customer-specific models Industrial systems Medium-voltage switchgear Indoor switches, disconnectors, and earthing switches (single and triple pole) Indoor circuit breakers (low oil content and vacuum) Outdoor switches (low oil content and vacuum) Railway switches for power supply and catenary High-voltage high-breaking-capacity fuses Customer-specific models Low-voltage systems Open-framework design Enclosed break devices (up to 6.00 A) Cable and fixed-station distribution cabinets Low-voltage switchgear Switch disconnectors Switch and fuse blocks Low-voltage high-breaking-capacity fuses Compact sub-station Concrete construction Container construction Driving gear Hand-operated and motor-operated mechanisms Indoor and outdoor driving gear Accessories For medium and low voltages For station equipment Insulators (0.5 kv kv) Plastic and glass-reinforced plastic screening Service Maintenance and Service of all switches and switchgears Training courses and seminars Thermography; Live-line working Dimensions, weights, diagrams and descriptions in this brochure are non-binding. Subject to change without notice. switching electricity safely Printed on chlorine free bleached paper. For nature s sake. ELEKTROTECHNISCHE WERKE FRITZ DRIESCHER & SÖHNE GMBH infoservice@driescher.de Order No