Siemens GER Instructions, Installation, Operation, Maintenance Download | Manualshive

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Instructions

Installation

Operation

Maintenance

SGIM-9978B

Vacuum Circuit Breakers (Vehicle)

Type GER
5kV to 15kV

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Summary of Contents for GER

Page 1: ...Instructions Installation Operation Maintenance SGIM 9978B Vacuum Circuit Breakers Vehicle Type GER 5kV to 15kV ...

Page 2: ...rts should not be used in the repair of the equipment Follow all safety instructions contained herein IMPORTANT The information contained herein is general in nature and not intended for specific application purposes It does not relieve the user of responsibility to use sound practices in application installation operation and mainte nance of the equipment purchased Siemens reserves the right to m...

Page 3: ...Interlock 4 Differences 4 Circuit Breaker in Disconnect Test Position Refer to Figure 4 5 Trip Free In Racking Procedure Refer to Figure 2 6 Circuit Breaker in Connect Position Refer to Figure 3 7 Adjustment Procedure Trip Free Spring Dump 8 MOC Actuator Refer to Figure 4 9 Continuous Current Interlock 9 Maintenance 10 Introduction and Maintenance Intervals 10 Recommended Maintenance and Lubricati...

Page 4: ...ountered by the user These words are defined as Danger Indicates an imminently hazardous situation which if not avoided will result in death or serious in jury Warning Indicates a potentially hazardous situation which if not avoided could result in death or serious injury Caution indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury Dangerous Proce...

Page 5: ...ng pallet for later use if the breaker is to be stored prior to its installation 2 Inspect for concealed damage Notification to carrier must take place within 15 days to assure prompt reso lution of claims 3 Each circuit breaker should be appropriately lifted us ing lifting sling rated for at least 3 000 lbs The circuit breaker shall be lifted by Upper B phase post insula tor 4 The palleted circui...

Page 6: ...ctrical interlocks are pro vided as integral components of this equip ment to ensure safe use Interlocks must be in operation at all times Read this instruc tion manual Know and understand correct interlock function Check interlock function prior to inserting circuit breaker into switchgear cubicle Differences The original manufacturer s trip free and spring dump interlocking is a two stage system...

Page 7: ...cates that the circuit breaker is open with closing springs discharged In this condition parts relating to the closing and spring charging are not engaged as is indicated by the location of pawl roller latching pawl pawl and pawl roller Note also that the trip pushed cam trip free pushrod interlock levers motor cutoff switch are in their lowest position It is recommended that the trip free spring ...

Page 8: ...ing Dump Interlock Circuit Breaker in Mid Cycle Racking Position As shown in the enlarged view of the circuit breaker operator the displacement of the trip free roller results in the downward displacement of the trip actuator which in turn lifts the lever linkage which results in the elevation of the interlock levers The upward displacement of the interlock levers result in the opening on the norm...

Page 9: ...e Preparation page 3 for cubicle adjustment In the Connect position with the trip free roller residing as required in the upper cavity of the moveable cam the circuit breaker is now free to perform all required functions The enlarged view of the operating mechanism shows the circuit breaker operator closed with springs charged Note that all items displaced during the racking procedure have returne...

Page 10: ...ller counter clockwise resulting in the immediate discharge of the closing spring and the opening of the circuit breaker 2 Rack the circuit breaker to a position between Connect and Disconnect Test Repeat steps 1 2 and 3 listed in the procedure detailed in section entitled Trip Free Racking Should any problems arise with the trip free spring dump interlock follow the adjustment procedure listed be...

Page 11: ...lacement of the original GE 52STA with a Siemens 52STA 5kV 250MVA P N 18 669 255 502 and for all other ratings P N 18 669 255 501 If requested the Siemens type GER circuit breakers can come equipped with a MOC actuator This is provided to actuate the original manufacturer s designated 52STA auxiliary switch mounted in the existing cubicle The Siemens MOC actuator has a total travel from circuit br...

Page 12: ...problems arise which are not covered sufficiently for the Purchaser s purposes the mat ter should be referred to the local Siemens sales office Removal from Switchgear Prior to performing any inspection or maintenance checks or tests the circuit breaker must be removed from the switchgear The Installation and Initial Functional Tests section describes the removal procedure in detail Princi pal ste...

Page 13: ...tion of this manual for special instructions and precautions regarding removal of a circuit breaker which is not at floor level Maintenance Checks of the Primary Power Path The primary power path consists of the three vacuum interrupters and the six primary studs These components are checked for cleanliness and condition Figure 6 The vacuum interrupters are discussed in the Circuit breaker Operato...

Page 14: ...liding rotating and articulating surfaces MOC Actuator System MOC Actuator System should be inspected refer to Table 2 Periodical Maintenance and Lubrication Tasks Maintenance of the circuit breaker MOC actuator system DOES NOT mitigate the requirement to maintain cubicle mounted MOC system components These shall be main tained in accordance with the OEM s recommendations Electrical Control Checks...

Page 15: ...second withstand refer to Circuit Breaker Operator Manual SGIM 9918 for ratings Insulation Barriers and all Insulating Components 1 Cleanliness 2 Cracking crazing tracking or other sign of deterioration Interrupter Operator Mechanism 1 Cleanliness 2 Lubrication of sliding rotating and articulating surfaces Apply Anderol 732 aerosol synthetic fluid grease part number 15 172 816 058 or Beacon 325 pa...

Page 16: ...9978B 12 2003 Printed in U S A 2001 Siemens Power Transmission Distribution Inc SIEMENS is a registered trademark of Siemens AG Siemens Power Transmission Distribution Inc P O Box 29503 Raleigh NC 27626 0503 ...

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