REPAIR AND MAINT OF TRANSFORMER, RMU, VCB, VOLTAGE STABILIZER AND MISC WORKS AT AF STN SAMANA UNDER GE (AF) JAMNAGAR No 1

Amount

M & L for Overhauling / servicing of 100-125 KVA capacity transformer/Isolation TR, 11 KV / 433 V, by disconnecting LT / HT connections from site of installation, inspection/assessing of the defective/burnt parts, core assembly of transformer in the presence of Engineer-in-Charge and cleaning complete for making it carbon free, checking for any loose bushings & making it rectified if found & reconnecting with LT / HT connections, testing and commissioning on load complete all as specified and as directed. Note for item No 1 to 5:- (i) Filtration of transformer oil if required will be measured & paid separately. (ii) Topping up with new transformer oil if required will be measured & paid separately. (iii) Any spare Part & rewinding if found unserviceable will be measured & paid separately and minor parts such as nuts, bolts, washers, etc. shall be arranged by the contractor and the cost thereof shall be deemed to be included in the unit rate quoted against this item.

All as per item No 1 above but 150 /160 KVA capacity transformer 11 KV / 433 V.

All as per item No 1 above but 200 KVA capacity transformer 11 KV / 433 V.

All as per item No 1 above but 400 KVA capacity transformer 11 KV / 433 V.

All as per item No 1 above but 500 KVA capacity transformer 11 KV / 433 V.

S&F in repair 11 KV HT terminal comprising stud, insulator, nut, bolt, washer etc (for three phase) suitable for out door type transformer of capacity 63 to 250 KVA complete all as specified and as directed.

S&F in repair 11 KV HT terminal comprising stud, insulator, nut, bolt, washer etc (for three phase) suitable for out door type transformer of capacity 315 to 500 KVAcomplete all as specified and as directed.

S&F in repair 0.433 KV LT terminal comprising stud, insulator, nut, bolt, washer etc (for three phase & neutral) suitable for transformer of capacity 63 to 250 KVA complete all as specified and as directed.

S&F in repair 0.433 KV LT terminal comprising stud, insulator, nut, bolt, washer etc (for three phase & neutral) suitable for transformer of capacity 315 to 400 KVA complete all as specified and as directed.

S&F in repair 0.433 KV LT terminal comprising stud, insulator, nut, bolt, washer etc (for three phase & neutral) suitable for transformer of capacity 500 to 750 KVA complete all as specified and as directed. Note for item No 06 to 10:- Make shall be as per OEM recommadation and approved by the GE.

Dehydration / filtration of transformer oil of transformers, isolation transformer, OCBs, PT's, oil switches, Ring main Tee unit , Stabilizers etc of various capacities installed at different locations by disconnecting plants electrically for recirculation existing transformer oil with trolley mounted filtration plant till dielectric strength not less than 60 KV. Note- Quoted rates shall be deemed to include for following :- (i) Oil shall be tested after filtration and test result will be recorded before & after filtration of oil. (ii) Contractor should make his own arrangement for oil filtration plant including transportation complete. (iii) New Transformer oil for topping up will be measured and paid in relevant item as required (iv) All necessary T&P / testing equipment shall be provided by the contractor at his own cost. No extra payment shall be made to the contractor.

Supply & topping up of transformer oil up to required level for transformer / PT's / stabilizers / HT switches etc of duly filtered with filtration plant to obtain high dielectric strength 50 KV & above all as per IS specification, complete all as specified and as directed. (Note : Transformer oil shall be supplied in sealed barrels with test certificate.)

Supply and fix in repair breather with silica jell for transformer of capacity from 100 KVA to 400 KVA complete all as specified and as directed.

Supply and fix in repair breather with silica jell for transformer of capacity from 500 KVA to 750 KVA complete all as specified and as directed.

Supply and fix in repair oil level gauge for transformer of capacity from 63 KVA to 400 KVA complete all as specified and as directed.

Supply and fix in repair oil level gauge for transformer of capacity from 500 KVA complete all as specified and as directed.

M & L for preparation of old painted surface of transformer/voltage stablizer of capacity 63 to 100 KVA, including connected accessories complete by cleaning / scraping oil, grease dirt and rust with steel wire brush and emery paper to obtain clean and smooth surface, and applying two coat of synthetic enamel paint as per MES colour code, including rewriting of MES No complete all as specified and directed.

All as per item No 17 above but transformer/volatge stabliser of capacity 160 to 250 KVA.

All as per item No 17 above but transformer/voltage stablizer of capacity 315 to 750 KVA.

M & L for rewinding of HV / LV limb of transformer (Oi type/ Dry type)/stabilizer of any capacity taking down from site of installation, inspection/assessing of the defective/burnt parts, core assembly of transformer in the presence of Engineer-in-Charge and then lifting, loading and transportation of unserviceable transformer to the workshop for repair/rewinding and repair to the transformer by dismantling the top coverby dismantling and removing the burnt out copper winding cleaning of limb thoroughly and rewinding the same with super enameled copper winding wire of the same gauge and turn with proper class of insulation impregnated & baking, assembling and testing complete all as specified & as directed . (Note:-(i) Transportation to local/ company workshop is deemed to be in above quotted rate (ii) The transformer shall only be got repaired from one of the authorized firms/agencies of the manufacturer as approved by GE.)

Preventive maintenance for indoor and outdoor type RMU (safeplus or safering type) comprising preventive maintenance activities and repairing the RMU during breakdown / emergency and routine testing all as specified below:- Note:- Quoted rates shall be deemed to include for the following:- (i) Preventive maintenance shall be carried out two time in year. (i) The Contractor shall carry out Preventive maintenance of each RMU twice during the contract period . (ii) Each Preventive maintenance shall be counted as one job for the purpose of payment. (iii) The time interval between both servicing will be intimated by Engineer -in-charge as per requirement (iv) The complete report wrt. each Preventive maintenance shall be submitted to Engineer -in-charge before payment. (v) Contractor shall also responsible for repairing the RMU during any breakdown / emergency. (vi) routine testing shall be carried out once during the contract period. (A). The following scope of work shall be included under preventive maintenance :- (a) Condition monitoring as per the scope defined:- (i) Condition based & Predictive maintenance. (ii) Preventive maintenance. (iii) Breakdown maintenance. (iv) Overhauling, reconditioning & testing of existing equipment. (v) Failure analysis for major breakdown

(b) Performance Health Check-up (i) Checking of CB & Isolator mechanical & electrical operation Closing & tripping (ii) Checking of Breaker close & open operation. (iii) Mechanism Critical setting & adjustment shall be done. (iv) Lubrication of mechanical critical part of Circuit breaker. (v) Lubrication of spring charging mechanism. (vi) Operational Movement & alignment. (vii) Alignment of open cable doors. (viii) Physical healthiness of switches, indication lamp, auxiliary relay etc. (ix) Bus bar tightness, bus joint healthiness checks & contact resistance check. (c) Routine Tests(performed once during the contract period.) (i) Testing of protection relays. (ii) CB contact resistance, contact condition the pole. (iii) Interrupter health check by HV test (d) Reports: (i) Relay test report (ii) Breaker test report (iii) CT/PT test report Failure reports of major failure-Which includes failure mechanism analysis & remedies Interpretation of condition monitoring data.

B. Check list for breaker preventive maintenance :- Mimic diagram checking YES / NO (i) Spring Charging of HT breaker -by manual operation YES / NO (ii) Spring Charging of HT breaker -by motor if available YES / NO (iii) All limit switch operation healthiness for motorized module YES / NO (iv) Closing of breaker by push button YES / NO (v) Opening of breaker by push button YES / NO (vi) BKR on/ off indication sticker YES / NO (vii) Disconnector closing and opening YES / NO (viii) Disconnector Earth switch closing and opening checking YES / NO (ix) Disconnector ON/Off indication sticker YES / NO (x) Remote close of BKR if closing coil available YES / NO (xi) Remote opening of BKR by series trip coil YES / NO (xii) Remote opening of BKR by shut trip coil if (xiii)available YES / NO (xiv)Padlock Movement of Disconnector and Breaker YES / NO (xv) Interlock between breaker On condition and Disconnector YES / NO (xvi) Interlock between BKR OFF condition and Disconnector YES / NO

(xvii) Cable door interlock with Earth switch on/off condition YES / NO (xviii) Handle locater of Disconnecter healthyness YES / NO (xix) Interlock of cable door with respect to BKR and disconnector YES / NO (xx) Relay self power battery healthiness - if self power YES / NO (xxi) Relay display healthiness YES / NO (xxii) Remote Closing - if available YES / NO (xxiii) Series trip coil healthness. YES / NO (xxiv) Remote tripping of relay YES / NO (xxv) Shunt trip coil healthiness/ remote tripping YES / NO (xxvi)Termination boots position / termination bushing cover YES / NO (xxvii) Proper Termination boot earthing for 22/33 KV YES / NO (xxviii) Termination Tightness ( 30/ 50 Nm) YES / NO (xxix) Terminated cable support condition YES / NO (xxx) Cable gland sealing checking YES / NO (xxxi) VPIS healthiness OK YES / NO (xxxii) CT ratio installed in BKR compartment YES / NO (xxxiii) CT connection tightness YES / NO (xxxiv) Cable boot fixing healthiness YES / NO (xxxv) Cable boot earthing for 22 KV and 33 KV YES / NO (xxxvi) Cable support YES / NO (xxxvii) Cable Gland provision YES / NO

C. Check list for RMU preventive Maintenance :- (i) Grouting of Frame/ channel on foundation tightened YES / NO (ii) Earthing connection of RMU YES / NO (iii) Outer Visual inspection of RMU YES / NO (iv) Sealing of RMU / any opening for insertion RMU . YES / NO (v) SF6 gas level indication position in zone YES / NO (vi) DC power pack operation healthiness - 24 V YES / NO (vii) Battery 24 V Dc heathiness YES / NO (viii) 230 V AC supply requirement / availability YES / NO (ix) Coupling Box Cover fixing if RMU extensible and coupled YES / NO (x) Coupling Bus bar tightness YES / NO (xi) Coupling boot earthing YES / NO (xii) Not any opening on box up YES / NO (xiii) Electrical testing status YES

Note:- (i) RMU of make ABB & Crompton are installed at site. Preventive maintenance, repairing the RMU during breakdown / emergency and routine testing shall be carried out through authorised representative of OEM (ii) Spare parts required for Preventive maintenance, repairing the RMU during breakdown / emergency will be measured & paid separately as supply only. Make of spare part shall be as recommended by the OEM and unserviceable parts shall be property of contractor as per credit schedule. (iii) Contractor shall submit necessary documentary evidence that Preventive maintenance, repairing the RMU during breakdown / emergency and routine testing has been performed by the OEM (vi) RMU any type any way including VCB, load break switch and metering unit will be measured as one unit for payment. (v) After Preventive maintenance, repairing the RMU during breakdown / emergency RMU shall be tested as directed by the Engineer-in-Charge and test result in triplicate copy shall be submitted to Engineer-in-Charge.

Supply only Bushing 400 Series Bolted Type

Supply only O Ring 72 x 6 BUSHING 400 SERIES BOLTED

Supply only SHAFT FOR OPERATING HANDEL

Supply only 2PA Mechanism w/o hex rod

Supply only TRIP COIL SAFORCE AMPL WIC & ASHDA

Supply only PUSH BUTTON RED W/ LABEL "O"

Supply only PUSH BUTTON GREEN W/LABEL "I"

Supply only BRACKET 'A' Mechanism hldg 2 push buttons

Supply only Opening Finger, Manual Operating

Supply only Closing Finger, Manual Operating

Supply only BRACKET for 'K' Mechanism

Supply only BRACKET FOR CT MTG RMU RHS

Supply only 24 kV VPIS cord

Supply only Capacitor Unit, VPIS, 9-15kV without cord

Supply only PRESSURE REFILLING EQUIPMENT( KAR-6)

Supply only RONIS KEY WITH HARDWARE

Supply only RONIS LOCK & KEY FOR RMU WITH KEY A,

Supply only RONIS KEY INTERLOCK OF LBS WITH KEY C,

Supply only RONIS INTERLOCK EL11P OF LBS WITH KEY B

Supply only Fuse Holder Assembly c

Supply only TERMINAL PROTECTOR SILCAB (RAYCHEM) for 11kV c

Supply only T SHROUD (NEW) for 11kV

Supply only Reducer Stud for Cable Bushing

Supply only Trip Coil Only Y1 Control Volt 24 VDC

Supply only Close Coil Only Y2 Control Volt 24 VDC

Supply only O Ring 65 x 5 For LBS Mech Bushing

Supply only Spring charging Motor with Gear 24 V DC.

Supply only WIKA make Manometer+Gas density switch

Supply only STANDARD MOTORISED KIT FOR V/V+M/CCV+CCVV MODULE,

Supply only BRACKET-FOR RMU (New Indication) item code NHP304264P1,

Supply only Position indicator for V/V+M/CCV+CCVV MODULE

Supply only indicating lights for V/V+M/CCV+CCVV MODULE

Supply only handle Shaft of V/V+M/CCV+CCVV MODULE .

Supply only Indicator Flag CCV/CCVV-module OFF item code 1VYN403050-496

Supply only Indicator Flag ON of V/V+M/CCV+CCVV MODULE

Supply only Manometer+Gas density switch(CO contact) item code 4200800466.5012

Supply only STANDARD MOTORISED KIT FOR V/V+M/CCV+CCVV MODULE

Supply only BATTERY -12VDC ,12AH

Supply only Capacitor Unit,VPIS 15-24kV without cord complete all as specified and as directed. (Note for item No 22 and 60:- Spare parts are of make ABB, Crompton or Contractor may use spare part of other make as approved by the OEM. )

Supply and fixing Cable jointing kit for 11 KV (Earthed) grade cable for indoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm including dismantling & taking out old unserviceable jointing kit, complete all as specified and as directed.

Supply and fixing Cable jointing kit for 11 KV (Earthed) grade cable for outdoor termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 95 sqmm including dismantling & taking out old unserviceable jointing kit, complete all as specified and as directed.

Material and labour for servicing of 100-500 KVA ,static Air Cooled, Oil cooled voltage regulator (make Aplab or existing) three phase, 440 volt, 50 hz capacity and voltage regulating capacity 380 to 480 Volts, by disconnecting all its electrical cable, connections and earthing strip and taken out from station and transport it to the authorised service centre for cleaning along with removing the moisture with checking of each parts and After servicing take back Voltage regulator and fixed in its original position along with all cable connection and testing it on full working load all as specified and directed. Note:- (i) Quotted rate are deemed to include for replacement of minor spare parts like connecting wires, HRC fuses etc. (ii) During servicing if any defective parts were found it will be replaced with new parts of same make and measured & paid separately as supply only as below. (iii) Unserviceable parts shall be property of contractor as per credit schedule. (iv) Make approved as per OEM shall be used only after approval by the GE.)

Supply only PCB of control card one numbers

Supply only protection card

Supply only indication card

Supply only output On/Off switch

Supply only control Transformer

Supply only cooling fan 90watt, 2700 rpm, 230 V, 50 HZ .

Supply only AC synchronous motor of oil cooled voltage stablizer, single phase, 230 V , 50 HZ capcity of 60 RPM, SEW2 type andd torque 10 kgcm

M & L for Repair / Maintenance of HT VCB 11 KV completely by taking the shut down with prior intimation and cleaning the VCB by using air blower, tightening of connections / controls , checking of all fuses, sealing of VCB at bottom, repairing of mechanical parts, oiling/greasing of all moving parts and carrying out following checks for smooth functioning of VCB by OEM. (a) Visual Inspection. (b) Checking of functional locks, interlocks, signalling devices and auxiliary devices. (c) Checking an fixing of suitability and correct operations of protections, control instruments and electrical connection of the circuit breaker operating mechanism. (d) Checking of Tripping Mechanism Operation. (e) Spring Charging Limit Switch Operation. (f) Checking with stand voltage on the auxiliary circumstances. (g) Checking of with stand voltage at power frequency. (h) Checking of Breaker ON/OFF Operation manually & electrically. (i) Testing of vacuum Bottle Integrity. (j) Relay Testing. (k) Checking of the resistance of the main circumstances. (l) Verification of wiring.

Note:- (i) Quotted rate are deemed to include for replacement of minor spare parts like connecting wires, HRC fuses etc. (ii) Any defective spare Parts if found unserviceable will be measured & paid separately as supply only as below. (iii) Unserviceable parts shall be property of contractor as per credit schedule. (iv) Make approved as per OEM shall be used only after approval by the GE.)

Supply only Current transformer

Supply only Voltage/ Potential transformer

Supply only epoxy coating of spout bushing

Supply only support insulator

Supply only High voltage Testing, relay caliberation and Testing of protection relays.

Supply only Self powered protection relay

S&F in repair Trigger/ Control transformer of suitable capacity for servo voltage stabilizer complete all as specified and as directed.

S & F in repair IC Based Electronic circuit board for servo voltage stabilizer (PCB) of Make : Jindal stablizer of capacity up to 500 KVA

S & F in repair servo motor for servo operation of capacity 3 Kg torque. Make as per exisiting up to 500 kVA

Comprehensive load testing of HOT/EOT (1-5 ) Ton Crane including providing required load for testing and furnishing certificate and testing report as directed by engineer in charge. (i) Required load for testing of crane will be provided by the contracor under his own arrangement. (ii) Load testing shall be carried out through authorised service provided of OEM/as per specifided charge and directed by Engineer-in-charge and Contractor shall produce certificate after load testing for the same. (vi) Contractor shall be submitted three copy of load testing certificate duly signed by Engr-in-charge shall be kept in record.

Note for above Srl Item No 1.0 to 67.00 :- (i) Work shall be executed by the authorised service mechanic / Electrician of manufacturer, After satisfactorily completion of servicing of HT Transformer/VCB/ voltage regulator/RMU If any fault occurs upto the completion of contract should be attended by concerned rep within stripulated time frame without fail , quoted rates is deemed to be included all such charges. (ii) If any above HT Equipment and connected items become breakdown, the contractor shall loacate the problem/fault at site within 12 hours on intimation by JE/Engineer-In-Charge and ensure that the fault to be rectified within 24 to 48 Hours , failing which an amount of Rs 500 /- per hour will be recovered as a penal recovery from any payment due to contractor after expiry of 48 hours.) (iii) Minor consumable items, ie Nuts bolts, Control wires , PVC tapes, Welding Job, cotton waste & cleaning clothes, petroleum jelly, grease , lubricating oil, emery paper , T & P items etc, is to be arranged by contracttor without any extra cost.

SURESH ELECTRICALS