REPAIR/ MAINT OF RMUS, DISTRIBUTION TRANSFORMER, EXTERNAL ELECTRICAL DISTRIBUTION SYSTEM INCLUDING REPAIR/ CALIBRATION OF RELAYS, METERS AND OTHER ALLIED WORKS AT CTW, INS VISHWAKARMA, BV YARD, OLD MO(V), ABE PARK, CQAE UNDER AGE E/M II OF GE (U-I) V

Amount

M&L for disconnecting carefully electrical connection from both HT/ LT (primary & secondary) sides of the transformer, keeping them at safe side and taking out the transformer/Voltage stabiliser indoor/ outdoor type of capacity 500 KVA to 750 KVA, 11 KV/433V, step down of any make for carrying out complete overhauling which shall comprise of the following:- a) M&L for lifting, transporting, handling the transformer to workshop and back to the original location after complete overhauling. b) Conducting the tests on core and windings as per IS like ratio, magnetic imbalance, short circuit etc. in presence of Engr-in-Charge and test results shall be signed both by the contractor and Engineer -in-Charge and kept on record. Note:- (i) Any damage to insulators/ bushes/ windings etc. while in the custody of the contractor shall be made good at no extra cost to Department. The serviceability of the transformer shall be checked and confirmed by the contractor before taking into his custody. (ii) M&L for rewinding/ re-insulation of HT/ LT (primary/ secondary) coils, bushes, studs, Transformer oil, cable box, replacement of bucholtz relay/ MOG if any etc will be measured and paid separately.

All as per Item No. 1 here-in-before but transformer/Voltage stabiliser indoor / outdoor type of capacity 250 KVA to 400 KVA

All as per Item No. 1 here-in-before but transformer/Voltage stabiliser indoor/ outdoor type of capacity 100 KVA to 200 KVA

M&L for filtration of transformer oil of transformers / FRMUs installed at various locations to achieve di-electric strength not less than 60 KV at 2.5mm gap as per relevant IS with portable filtration plant, testing of the oil for the di-electric strength before filtration and after filtration complete all as directed by the Engineer-in-Charge.

Supply and topping up of transformer oil with di-electric strength not less than 60 KV into the conservator tank/ body tank of the transformer/ OCB/ FRMUs etc at various locations complete all as directed by the Engineer-in-Charge. Make: Power oil / Transol / Sabitha Chemicals

M&L for rewinding of distribution (HT/LT) transformers of capacity 500 KVA to 750 KVA including dismantling old winding & rewinding the defective coils with new copper wire as per I.S. of same gauge and existing size together with new insulated materials/ bracings before placing in to the transformer and assembling the coil with new insulation and fitting the coils in the chamber, testing and commissioning the transformer and recording the test results complete all as directed. Note: M&L for re-insulation of serviceable coils will be measured & paid separately under relevant items.

All as per Item No. 6 here-in-before but transforme of capacity 100 KVA to 400 KVA

M&L for re-insulating windings of HT/ LT distribution transformers of capacity (100 KVA to 750 KVA) of any size / type by strip opening of HT/ LT coils (Primary / secondary coils) from core assembly safely, unwinding the HT/ LT coils (i.e. Primary/ secondary coils) complete, removing the old defective insulation paper and replacing with new DPC insulation to the copper conductor, re-varnishing of the windings with super varnish including heating / drying / backing complete carefully and thoroughly inside the heating chamber at suitable temperature to obtain required value of insulation resistance etc. complete all as per IS 1986-87 and as directed by Engr-in- charge.

Disconnection of the distribution Transformer of following capacity from HT and LT supply mains, removing of Bus duct and Bus bar, Leakage arresting by draining out of oil, after arrangement of necessary empty oil drums, buckets etc., dismantling of top cover and accessories, dismantling of LT bushings by disconnecting leads / jumpers from inside, replacement of gaskets and oil seals and re fixing of the LT bushings, making internal and external connections, replacement of cover gasket and accessories, refixing of accessories and cover, filling of transformer oil complete, and making cable connections and for energising the transformer complete all as specified and directed:- Note:- Rates quoted agains this item shall considered to include cost of gaskets and oil seals however Bushing and bushings rods shall be measured and paid separately.

500 KVA to 1000 KVA

250 KVA to 400 KVA

upto 200 KVA

Disconnecting the HT/LT connections of transformers of following capacity i.e (Bus duct / Cable bunch) keeping all the cables out from the HT/LT sides, physically checking the transformer for healthiness, performing the transformer tests like Meggar test, Ratio Test, Magnetic Balance test and short circuit tests for checking the condition of transformer, recording the test results & submitting the same complete all as specified and directed:- Note:- (i) If the transformer is found satisfactory after tests then HT / LT connections shall be done by the contractor & transformer shall be charged. (ii) If the transformer fails in these tests then the transformer shall be shifted by the contractor for winding / overhauling. (iii) Cost of Transportation / winding / overhauling is exclusive of rate quoted by the contractor.

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for shifting the transformer from existing site to another site within 3 Km distance range by Dismantling of HT and LT cables, jumpers and bus bars including LT busbar cable boxes and close the transformers for loading into vehicle with the help of crane, transportation to another site, unloading, making cable connections of both HT and LT, testing and commissioning complete all as specified and directed:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for of Silica gel breather assembly complete with breather unit and silica gel including connecting with proper necessary gaskets if necessary, including removing the unserviceable breather assembly including dismantling old one complete all as specified and directed:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for conservator tank complete unit and including connecting with proper necessary gaskets if necessary, including removing the unserviceable conservator tank complete all as specified and directed:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

S&F gun metal drain valves of transformers of following capacities including dismantling old complete all as specified and directed:- MAKE :- UPADHYAY / LEADER / ZOLOTO

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

Supply and fix in repairs off load tap changer assembly suitable for any make with 7 tapping position including opening top cover, conservator etc suitable for following capacity transformer complete all as specified and directed:-

500 kVA to 750 kVA

up to 400 KVA

S&F WTI (Winding Temperature Indicator) of following distribution transformers including dismantling old one complete all as specified and directed:-

500 KVA to 1000 kVA

up to 400 KVA

S&F LT Bushings made out of Porcelain and suitable length / size all as per existing, including dismantling old one complete for following capacity distribution transformers of any make / size / type all as directed:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

Supply only HT Bushings made out Porcelain and suitable length/size all as per existing, complete the following capacity distribution transformers of any make/size/type all as directed including dismantling old one. :-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

Supply only LT Bushing rod made out of Brass / Copper with threading and suitable length/size all as per existing metal parts / bolts etc, complete for the following capacity distribution transformers of any make/size/type all as directed including dismantling old one:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

Supply only HT Bushing rod made out of Brass/Copper with threading and suitable length/size all as per existing including metal parts / bolts etc, complete for the following capacity distribution transformers of any make/size/type all as directed including dismantling old one:-

500 KVA to 1000 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for replacement of OTI (Oil Temperature indicator) of following distribution transformers including dismantling old one:-

500 KVA to 750 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for replacement of Drain plugs to valves/conservator caps of the sizes 3/4", 1", 1.5" valves and plugs of the following capacity distribution transformers of any make/size/type all as directed including dismantling old one:-

500 KVA to 750 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for replacement of Oil gauge glass with gaskets of the following capacity distribution transformers of any make/size/type all as directed including dismantling old one:-

500 KVA to 750 KVA

250 KVA to 400 KVA

up to 200 KVA

M&L for preparation of old painted surfaces of transformers with coarse cloth/ brush and painting throughout externally on exposed surfaces with two coats of smoke grey colour synthetic enamel paint including writing of transformer details on plinth in white synthetic enamel paint on black synthetic enamel paint back ground complete including one coat of white wash for base foundation all as specified and directed by Engineer-in-charge for the following capacity in-door/ out-door type transformer:-

500 KVA to 750 KVA

250 KVA to 400 KVA

up to 200 KVA

Clearing away all bushes, small plants, grass, vegetation, saplings, shrubs, brushwood, undergrowth, roots upto root level including surface dressing n.exc 15 cm deep around and surroundings areas of E/M installations (i.e.Two Pole/ Four structures, outdoor-substation yards, pump house & Misc E/M installations etc) and removing rubbish / debris upto a distance of not less than 50 metres outside the periphery of the area under clearance complete all as directed.

Supply and laying 150 mm thick (Consolidated thickness) layer of aggregate using 20mm graded crushed stone aggregate, deposited, spread and leveled in layers watered and rolled / rammed to a true surface in sub-station yards complete all as specified and directed.

Excavation in trenches, not exc 1.5 m wide and not exc 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. n exc 10 sq m on plan and n exc 1.5 m in depth and getting out all excavated material in soft / loose soil complete all as specified and directed.

Returning, filling in and including spreading, levelling, watering and well ramming in layers not exceeding 25 cm thick complete all as specified and as directed.

Removing of excavated surplus soil to a distance n. exc 50 m and depositing where directed at a level n. exc. 1.5 m above the starting point complete all as specified and directed.

M&L sand cushioning with clean and dry sand in trenches for protection of UG cable and including punning down complete all as specified and directed. Note:- Punned thickness shall only be measured and paid.

Supplying and laying un-reinforced precast concrete cable cover, class HV, Type 1, flat, of size 300mmx 180mm x 40mm, laid along alignment of cable as protection to cable in trenches complete all as specified and directed.

S&F 100 mm bore galvanised steel tubing, medium grade with necessary fittings, laid under road crossing, for cable protection including taking down complete all as specified and directed. Make - Tata / Jindal Steel / Surya Roshni Ltd. / Bhushan Power & Steel Ltd. / M/s APL Apollo Tubes Ltd

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm for outdoor termination, heat shrink type joint complete with jointing material and accessories complete all as specified and directed. Make:- 3M / Denson / Raychem / M-Seal

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 sqmm for outdoor termination, heat shrink type joint complete with jointing material and accessories complete all as specified and directed. Make:- 3M / Denson / Raychem / M-Seal

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 sqmm for straight through, heat shrink type joint complete with jointing material and accessories complete all as specified and directed. Make:- 3M / Denson / Raychem / M-Seal

M&L cable jointing kit for 11 KV (Earthed) grade 3 core XLPE armoured aluminium conductor cable of size 240 sqmm to 300 sqmm for straight through, heat shrink type joint complete with jointing material and accessories complete all as specified and directed. Make:- 3M / Denson / Raychem / M-Seal

Supply & laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts, Earthed, grade cross sectional area 185 Sqmm, 3 core, laid in trenches / duct / on pole including taking down complete all as specified and directed. Make :- Havells / KEI / Polycab

Supply & laying XLPE insulated, screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with aluminium conductor, 11000 volts, Earthed, grade cross sectional area 240 Sqmm, 3 core, laid in trenches / duct / on pole including taking down complete all as specified and directed. Make :- Havells / KEI / Polycab

M&L for detecting HT 11KV UG cable faults located in any stretch / depth with sophisticated cable fault locator consisting of microprocessor based pre-locator system, HV surge generator, fault pin point surge wave receiver, cable identification instrument , cable tracer for exact location of under ground cable routes complete all as directed. Note: The rate quoted deemed to be inclusive of arrangement of necessary fault locator equipment, transportation of equipment& charges for service engineer.

M&L for repair and servicing of HT (HT 11 KV) four pole structure by replacing Aluminium PG clamps, GI bolts and nuts, pieces of ACSR conductor with insulation sleeve RYB of any size as jumpers including lubricating the moving parts of AB switch and cleaning of all disc and pin insulators and applying silicon compound for prevention of arcing due to dust/ salt deposits over the surfaces including preparation of surfaces, applying zinc chromate primer on rusted surfaces and applying one coat of aluminum paint to the entire structure complete all as directed. Note:-Rate quoted shall be inclusive of two coats of white wash on exposed concrete surfaces.

All as per item No. 40 above but for two pole structure

Servicing, Inspecting, checking, cleaning by using of blower, lubrication, greasing and carrying out preventive maintanance of RMU of capacity 11 KV, 250/350 MVA including calibrating the relay by conducting secondary injection tests and RMU in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge. Notes: (i) The rate quoted shall deemed to include cost for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of RMU panels with approved colour including lettering details all as per exisitng etc.

Supply & fixing of the following spare parts suitable for RMU of capacity 630 Amps & of Schneider / Siemens make:-

Self powered relay with O/C , S/C , E/F protection. Relay should have a front USB port for laptop interface , LCD display ,10 event records, 5 fault records, min 2 setting group and keypad for setting parameters for the relay.

CT Ratio 100-50/1-1A for Class - 1.0, 2.5VA for metering and Class 10P10, 2.5VA for protection

Cable termination bushing suitable for upto 1 RUN 3 core x 185 Sq mm, XLPE cable

Cable termination cover boots (Push on type)

Three Phase (R/Y/B) indicating lamps

11KV/230V AC, 1KVA control transformer

Battery with & including battery charger, 12Ah, (I/P-230V AC, O/P - 24V DC)

Spring Charging motor

S&F danger notice plate of size 25 x 20 cm & 1.6mm thick mild steel sheet, vitreous enameled white, with letters, figures and conventional skull and bones in signal red colour and fixed with M.S. clamps, bolts and nuts of approved size for HT including dismantling compete all as specified and as directed.

M&L earthing complete with galvanised steel earth plate electrode of size 600 x 600 x 6 mm thick buried directly in ground in vertical position (earth pit not less than 2.25 m deep below the normal ground level) with top edge of the earth plate not less than 1.5 m below normal ground level, connected to earth lead of galvanised iron strip 32 x 6 mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel, all as shown in electrical plate No. 3 connected to earthing test point including dismantling complete all as specified and directed. Note:- The unit rate shall also include for earth work in any type of soil, PCC 1:3:6 type C1 chamber, RCC 1:1.5:3, type A1 cover slab, 50 mm thick reinforced with 8 mm dia TMT bar @ 140 mm C/C both ways, 10 mm dia plain bar lifting handle embedded in cover slab, 20 mm bore medium grade GI watering pipe, 40 mm bore GI light grade earth lead protection pipe, funnel, wire mesh, copper lugs, charcoal and common salt in alternate layer etc.

Disconnect and taking out the IDMT/ Numeric/ Microprocessor based relay of any type of any make from 11 KV HT panel at 11KV Sub Stn MOV Old, cleaning the contacts, calibrating the relay by conducting secondary injection tests, checking of current transformer, rectification of defects in control wiring for proper tripping of circuit breakers through CTs and relay and tripping coils, adjustment/setting to plug and time multiplier settings of the relay to achieve the discrimination in tripping, tune/synchronise upstream breaker relay settings, re-installation of relay, testing & commissioning etc complete all as specified and as directed. Note: The Contractor has to arrange necessary testing Kits, testing equipments, tools etc. Rental rates for the testing/calibration kits & connected equipments & are deemed to be included in the quoted rates. Testing & tuning shall be carried out in the presence of representative of the accepting officer to the entire satisfaction of the rep of GE.

Taking down HT switch gear (Vacuum circuit breaker ) at 11KV Sub Stn MOV Old site of capacity 11 KV, 250/350 MVA comprising of repairs, complete overhauling / servicing, carrying out preventive maintenance alongwith testing of breakers by current injection test and refixing the same after repairs/ overhauling:- Note: (i) The servicing includes for busbar duct chamber, cable alleys and connecting accessories (ii) The rate quoted shall be deemed to include for necessary T&P, nuts, bolts, washers, gasket, insulation tape, compound, painting of VCB panels with approved colour including lettering details all as per existing etc. to put in to the VCBs and panels in serviceable condition, testing and commissioning all as specified and as directed by the Engineer-in-Charge. (iii) Major spares like Breaker bushings, vacuum interrupter assly, busbar spout, busbar spout connections, circuit spout/circuit spout connections/buffer fixed contacts, moving contacts, tank assly/barriers, solenoid spares, dependent/spring mechanism/ motor mechanism, trip unit etc will be measured and paid separately under relevant items of Schedule 'A', however the rate quoted shall be deemed to include for any other minor spares requiring replacement. (iv) The servicing shall be carried out by auhtorised service engineer of OEM and approval of the same shall be taken from Engr-in-Charge.

Supply only the following spares suitable for 250 MVA to 450 MVA HT switch gear VCBs and 11 KV HT panel repair work under relevant Schedule:-

CTs epoxy cast wound primary CTs with minimum primary current 50 to 100 A, double ratio, double core (Protection core-5P10/10P10 & Metering core- Class 1.0), 25 KA for 1 sec of 15 VA minimum Burden. (existing size)

1.5 sqmm flexible FRLS PVC insulated multistranded copper conductor cable, unsheathed, 1100 V grade for control wiring.

2.5 sqmm flexible FRLS PVC insulated multistranded copper conductor cable, unsheathed, 1100 V grade for control wiring.

LED Indication Lamps

Shunt trip coil 110 V DC/220 V DC

Breaker control switch

Busbar Spout

Circuit spout

Control circuit fuses 2 A to 63 A

HRC fuse (PT HT side)

PT plug contact

Multifunction meter, Digital type (Displaying A, V, PF, Hz, KVA, KW, KVAR, KWh, Karsh etc.) Class 1/0.5 with RS485 port for communication in Modbus protocol. Make : L&T / Conzerve / HPL / SOCOMEC

VCB buffers

110 Volt DC closing coil assembly

Push to trip knob red assembly

Push to trip knob green assembly

Ratchet wheel

Nylon release lever

VCB charging powl

Shutters for racking shaft

Bus bar support insulator for VCB panel

Vaccume Interrupter Bottle VG2 Make : Schnider / Areva

Rectifier

Thermostat

M&L for replacement of damaged space heater in HT VCB 11 kv with new one suitable to operate on 110 Volts DC supply complete with necessary wiring and control cable with toggle switch and all as directed by engr-in-charge.