MAINTENANCE AND REPAIRS / RENEWAL OF LT ISOLATION TRANSFORMER, SERVO STABILIZERS AND LT ACBS / MCCBS AND ALLIED WORKS UNDER GE (AF) BIDAR

Amount

Schedules of Works

Comprehensive maintenance and general servicing to LT switchgear ACB of capacity up to 1600 amps once in year duly carrying out cleaning, overhauling, calibration by using suitable test kits, and cleaning the switch gear terminals/moving parts of electric/mechanically with suitable cleaning agents in all respects referring to drawings & specifications of OEM for automatic facilitated operating features, attending complaints on faults for the same on faulty / requirement / emergency calls of any type within the maintenance period and testing to ACB/protection relay by disconnecting, opening (Make : L&T, Crompton/CSS/ ABB Ltd/Schneider) and review the control switches with wiring and replacement of minor spares like fuses, wires, terminals/blocks and removing/replace unserviceable / defective spare parts with new spares under relevant items, reassembling the ACB complete in all respects up to serviceability complete all a specified.

Notes for Serial Item No 1.00 : (i) Replacement of unserviceable parts shall be measured and paid separately under relevant item of Sch 'A' as supply only but fixing charges of the parts replaced /repaired is deemed to be included in the item rate. (ii) Servicing shall be got carried out through a approved agency of any state/Central govt CEI (chief electrical Inspectorate) (iii) Repair/servicing shall be carried as per suggestions / measures mentioned in OEM drawings, technical specifications and service engineer shall submit a service report and calibration certificate for each ACB. (iv) Any minor item not included in CA and required for successful operation of the panel shall be provided by the contractor & same shall deemed to be included in the quoted rates. (v) Failing to attend the lodged complaint of any mode within 24 Hours will liable for Penalty @ Rs 500/- per fault for each day cumulatively and same shall be deducted from his dues.

Supply only Auxiliary Switch (7 NO +7 NC) 14 way

Supply only Under Voltage Trip Device consisting of UVT Coil & control device fitted in ACB

Supply only Shunt trip & Closing coil

Supply only Vertical Connection Copper Adapter

Supply only Trip Indication switch

Supply only Spring Charged' indication switch

Supply only Castle key lock ; Type: CKI - 1

Supply only Making current release / Instantaneous trip ; Type: CS-MCR - 1

Supply only Earth Fault Relay ,Type : EFR 1

Supply only Draw out mould Base(Cradle Side) type : 6D-16D

Supply only Arcing Contacts ( Set of 1 No. Fixed & 1 No Moving) type 16 D

Supply only Main Isolating Contacts ( Jaw contacts) ( Set of 1 No. Fixed & 1 No Moving) type 16 D

Supply only Main fixed Contacts ( Upper Terminals) type 16 D

Supply only Lower Terminals with fitting plates Contacts ( Upper Terminals) type : 16 D

Supply only Circuit Terminals/Draw out terminals Type : 16D

Supply only Main moving Contacts Assembly; type 16 D

Supply only Single pole unit for 16 D

Supply only Arc chutes; type 6 D - 16 D

Supply only Charging motor (110 V AC/DC ) or (220 V AC/DC) Type: 6D- 16 D

Disconnecting oil cooled servo voltage stabilizer of capacity 750 KVA (voltage grade 433 volt) copper wound, taking out connected cables, carrying out servicing, insulating the weaken winding using good quality varnish after lifting core and windings from chamber duly taking care of safety measures, tightening the terminals and cleaning the junction points with using suitable solutions and checking/calibration electrically/mechanically of and configure the auto system without disturbing existing auto connectivity and reassembling the equipment; including replacing minor spares and making it serviceable taking reference to OEM drawings and fixing/connect the same after dehydrating the oil up to achieve measurable value complete all as specified and as directed by Engineer-in-Charge. Note:- 1) Minor spares like nut, bolt, lugs, terminal blocks, int wiring, fuse wires for repair/maintenance of the transformer is deemed to include in quoted rates 2) Major spares shall be measured and paid separately as supply only.

All as per item No 21 here-in-above but of capacity 400 KVA

All as per item No 21 here-in-above but of capacity 300 KVA

All as per item No 21 here-in-above but of capacity 200 KVA

All as per item No 21 here-in-above but of capacity 125 KVA

All as per item No 21 here-in-above but of capacity 100 KVA

All as per item No 21 here-in-above but of capacity 50 to 75 KVA

Disconnecting Isolation transformer of capacity 750 KVA (of voltage grade 433 volt) copper wound, taking out connected cables, servicing and insulating the weaken winding using good quality varnish after lifting from the chamber by taking care safety measures, tightening the terminals and cleaning the junction points using suitable solutions, checking/calibration electrically/mechanically of and configuring the auto system without disturbing the existing auto connectivity and reassembling the equipment, replacing minor spares for efficient serviceability taking reference to OEM drawings and fixing/connect the same after dehydrating the oil up to achieve measurable value complete all as specified and as directed by Engineer-in-Charge. Note:- 1) Minor spares like nuts, bolts, lugs, terminal blocks, internal wiring, fuse wires for repair/maintenance of transformer shall deemed to be included in quoted rates 2) Major spares shall be measured and paid separately.

All as per item No 28 here-in-above, but of capacity 250 KVA to 400 KVA

All as per item No 28 here-in-above, but of capacity 100 KVA to 200 KVA

All as per item No 28 here-in-above, but of capacity 50 KVA to 75 KVA

All as per item No 28 here-in-above, but of capacity 10 KVA to 45 KVA

Disconnection and Removing LT Cable connections from Isolation Transformer/Servo volt stabilizer, transporting to local work shop, removing unserviceable / burnt out copper winding wire from the Isolation Transformer of capacity 750 KVA (oil cooled),Three Phase 415 V/415 V and rewinding the same with fine enamelled bare copper conductor of same gauge, turns, and weight and having Class - H insulation level and keeping the core and windings in hot air oven till the moisture evaporates and replace the same in its original position and testing complete by connecting existing LT cable connection all as directed by Engineer in Charge. Note: Rates Quoted shall deemed to inclusive of all Misc items such as Cotton tape, warnishing, impregnated paper etc. for satisfactory completion of job.

All as per item No 33 here-in-above but of capacity 250 KVA to 400 KVA

All as per item No 33 here-in-above but of capacity 100 KVA to 200 KVA

All as per item No 33 here-in-above, but of capacity 50 KVA to 75 KVA

All as per item No 33 here-in-above, but of capacity 10 KVA to 45 KVA

Supply and fixing in replacement of ceramic LV (primary/secondary) bushing complete with bushing stud (brass metal) for transformer/volt stabilizer of capacity 400 KVA to 750 KVA complete all as specified and directed by Engineer-in-charge.

All as per item No 38, here-in-above, but of capacity 200 KVA to 300 KVA

All as per item No 38, here-in-above, but of capacity 100 KVA to 160 KVA

All as per item No 38, here-in-above, but of capacity 50 KVA to 75 KVA

All as per item No 38, here-in-above, but of capacity 10 KVA to 45 KVA

Disconnecting and removing unserviceable servo motor unit along with shaft from existing servo stabilizers ( Oil/Air cooled ) carefully and replace same with identical equivalent servo controlling unit of same size and capacity consisting of Reversible synchronous motor with constant speed - Instant Start/Stop operates on single phase 230 V , 50Hz suitable for Voltage stabilizer of capacity up to 750 KVA (Oil Cooled)

All as per item No 43, here-in-above, but of capacity 400 KVA

All as per item No 43, here-in-above, but of capacity 300 KVA

All as per item No 43, here-in-above, but of capacity 200 KVA

All as per item No 43, here-in-above, but of capacity 125 KVA

All as per item No 43, here-in-above, but of capacity 100 KVA

Supply ,renewal / topping up of Transformer oil having di-electric strength not less than 60 KV/min instantaneous for oil cooled Isolation Transformers / Servo stabilizers complete all as directed by Engineer in charge . Make : Power oil / Servo /Veedol

Disconnecting and Removing old unserviceable Battery charging unit and S & F Battery charging unit providing DC power supply to relays, meters etc. operates on 230 V Single Phase AC, Output 24 V DC for Auto synchronizing panel complete as required

Disconnecting and Removing old unserviceable Battery charging unit and S & F Battery charging unit providing DC power supply to relays, meters etc. operates on 230 V Single Phase AC, Output 12 V DC for Auto synchronizing panel complete as required

Supply, install, connect, test and commissioning of voltage stabilizer of 5.0 KVA capacity for automatic operation, single phase naturally air cooled, indoor type & designed for input variation between 140V to 280V with output voltage stabilized at 230V with accuracy of ± 1% with high& low voltage cut out & time delay including electric connection including wall mounting clamp with bolts and nuts etc complete all as specified and as directed. Make : V guard / Microtek /Luminous/ABB/APC or techno-commercial equivalent make approved in MES.

S & F surface mounting Industrial plug & socket 32 Amps, 32 A 2P+E, IP 40 along with necessary fixing arrangements complete as directed and specified. Make:- Legrand/ABB/Havells/L&T or techno-commercial equivalent make approved in MES.

S&L PVC single core copper conductor (flexible) copper cable, PVC insulated (unsheathed) 1100 volts conforming to IS:694 of 25 Sqmm complete all as directed and specified.

Dismantling the earth chamber, Excavation and removing the u/s earthing materials along with u/s earth electrodes from the existing u/s earth pits pertains to installations/ buildings and M&L maintenance free earthing using corrosion resistant earth electrode copper cladded, copper coating thickness of 250 microns, 17.20 mm dia, high tensile low carbon COPPER BONDED RODS WITH 99.9% with 25KA current discharge test from CPRI of length 3.0m as per UL 467, with suitable compressive coupler planted at depth not less than 4.6m of bore 100mm below ground level and duly covered with low resistant superior conductive powdered non corrosive, highly hydrous earth enhancing material all as directed including connecting up to common copper bus bar grid using copper strip size 25 x 3 mm to achieve optimum low earth resistance on inspection/ testing complete all as specified and as directed.

Dismantling the earth chamber, Excavation and removing the u/s earthing materials along with u/s earth electrodes from the existing u/s earth pits pertains to installations/ buildings and M/L for providing earthing with GI earth plate electrode 600 x 600 x 6 mm thick buried directly in ground vertically to depth of not less than 2.25 metre deep below normal ground level with top edge of the plate not less than 1.5 metre below ground level including GI earth strip of 25x4mm and connecting by means of bolts, nuts, washers of GI and provision of earth lead, GI protection pipe with 15mm light grade galvanized including necessary earth work in any type of soil, PCC 1:3:6 type CI (using 20mm graded stone aggregate) earth chamber and 1:2:4 type B1 RCC cover fitted with50mm thick with 6mm dia MS bars complete all as shown in SSR Pt - 1 electrical plate No 3. Note : Quoted rate shall deemed to include the cost or excavation and earth work PCC Chamber, funnel cover etc.

Dismantling the earth chamber, Excavation and removing the u/s earthing materials along with u/s earth electrodes from the existing u/s earth pits pertains to installations/ buildings and M/L for providing earthing complete with Copper earth plate electrode 600 mm x 600 mm x 3 mm thick buried directly in ground earth pit not less than 2.25 Mr deep below ground level with top edge of the plate not less than 1.5 Mr below normal ground level, Alternate layers of charcoal) & common salt Crystal, in and including back filling compound in layers and filling up with black cotton soil up to the top edge/ ground level and connected to copper earth strip 20 x 3 mm by means of bolts, nuts, check nuts & washers of copper and connecting to earth dolly, equipment all as shown in electrical plate No. 5 of SSR Part I of 2009 & testing complete including 40mm dia light grade GI pipe up to 7.5 metre long, excavation in any type of strata, PCC ( 1:3:6 ) type C1 earthing chamber, pre cast slab 50 mm thick in cement concrete ( 1: 2 : 4 ) type B 1 ( reinforced with welded steel wire fabric (XPM) weight not less than 4 Kg / Sqm with frame, including 20 mm bore water pipe medium grade GI Tubing including GI Funnel , wire mesh etc. NOTE :- Copper earth continuity conductor 20x3 and GI light grade protection pipe 40mm dia beyond 7.5 metre shall be measured and paid under the respective items.

Dismantling the earth chamber, Excavation and removing the u/s earthing materials along with u/s earth electrodes from the existing u/s earth pits pertains to installations/ buildings M&L Tripod Earthing Complete with 3 numbers of Chemical earthing (maintenance free) using corrosion resistant earth electrode copper cladded, copper coating thickness of 250 microns, 17.20 mm dia, high tensile low carbon COPPER BONDED RODS WITH 99.9% with 25KA current discharge test from CPRI of length 3.0m as per UL 467, with suitable compressive coupler planted at depth not less than 3.0m of bore 100mm below ground level and duly covered with low resistant superior conductive powdered non corrosive, highly hydrous earth enhancing material all as directed including connecting up to common bus bar grid of size 25 x 3 mm to achieve optimum low earth resistance on inspection/ testing complete all as specified and as directed.

M & L Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or draw in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required 4mm dia galvanised iron or steel wire complete all as specified and as directed.

M & L Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or draw in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required but of size, 25x4mm galvanised iron strip complete all as specified and as directed.

Excavation in trenches not exceeding 1.5 metre depth width and not exceeding 1.5m depth for laying under ground cable in loose/soft soil.

Material and labour for cable cushioning using riddled earth by sieving excavated soil as per IS-1255-1983 complete all as specified and as directed by Engineer-in-Charge. Note: Punned thickness will be considered for measurement and payment.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25cm.

Removal of surplus soil obtained from excavated material not exceeding 50 metre and depositing where directed at a level not exceeding 1.5 metre above the starting point.

M&L for cutting up to 45 cm width and depth of the road/hard standing and making good disturbed surfaces including filling with PCC type C2 (1:3:6) using 40mm graded stone aggregate for the fixing the pipe/laying cables complete all as directed by the Engineer-in-Charge.

Disconnection and removing the u/s PCC cable covers and Supply and laying unreinforced pre cast concrete cable cover class LV, Type I, flat, size 250mm x 150mm x 40mm for cable protection, made out of M-20 grade concrete, etc complete.

Relaying old serviceable unreinforced pre cast concrete cable cover class LV, Type I, flat, size 250mm x 150mm x 40mm for cable protection complete. Note : Serviceable cable covers obtained / retrieved while taking out cables shall be reused under this item.

Supply and fix in repairs galvanised iron Steel tubing, light grade of 40mm dia along with fittings in trenches/wall for cable protection complete all as specified and as directed.

All as per Item No 69 here-in-above of Size 50mm dia/ bore.

All as per Item No 69 here-in-above but of Size 80mm dia/ bore.

Supply and laying XLPE insulated, armoured heavy duty electric cable with aluminium conductor, 1100 volts grade cable cross-sectional area 50 sq. mm 3.5 core and including provision aluminium lugs to both ends for cable connections and taking down old US cable, complete all as specified Note : Necessary excavation and cable protection works will be measured and paid for separately.

All as per Serial Item No 72 here-in-before; but cable of size 70 sqmm 3.5 core

All as per Serial Item No 72 here-in-before; but cable of size 95 sqmm 3.5 core

All as per Serial Item No 72 here-in-before; but cable of size 120 sqmm 3.5 core

All as per Serial Item No 72 here-in-before; but cable of size 185 sqmm 3.5 core

All as per Serial Item No 72 here-in-before; but cable of size 240 sqmm 3.5 core

Supply and fixing in replacement, 4 pole MCCB of capacity 350 Amps 415 Volts of breaking capacity 25 KA, including all provisions for fixing in panel compartments as per existing using necessary links, lugs of suitable size and cleaning the terminals with CTC solutions complete all as specified and directed.

All as per Serial Item No 78 here-in-before; but MCCB of 250 A

All as per Serial Item No 78 here-in-before; but MCCB of 200 A

All as per Serial Item No 78 here-in-before; but MCCB of 125 A

All as per Serial Item No 78 here-in-before; but MCCB 630 Amps with braking capacity 36 KA.

All as per Serial Item No 78 here-in-before; but MCCB 400 Amps with braking capacity 36 KA.

All as per Serial Item No 78 here-in-before; but MCCB 500 Amps with braking capacity 36 KA.

All as per Serial Item No 78 here-in-before; but of capacity 160 A , 25 KA

All as per Serial Item No 78 here-in-before; but of capacity 100 A ,25 KA

All as per Serial Item No 78 here-in-before; but of capacity 63 A ,25 KA

All as per Serial Item No 78 here-in-before; but of capacity 40 A ,25 KA

M&L for Servicing of Automatic Power Factor Correction (APFC) panel 3 phase LT monthly of the capacity of 100 KVAr to 125 KVAr complete comprising any type capacitors, APFC relay, MCCB, Cooling fan, Voltmeter, Ammeter, CTs with all other connected accessories, checking of serviceability of each component, cleaning all contact points, tightening of all connections including replacement of unserviceable components, thimbles, nut bolt and washers, etc if necessary, cleaning the entire panel by using hot blower complete all as directed by Engineer-in-Charge. Note: 1) Major spares shall be measured and paid separately 2) Spares not included in the schedule but are essentially required shall be provided by the contractor up to serviceability of the capacitor panel and satisfactory of Engr-in-charge

All as per Serial Item No 89 here-in-before; but capacity 150 to 200 kVAr

All as per Serial Item No 89 here-in-before; but capacity 250 to 750 kVAr

All as per Serial Item No 89 here-in-before; but capacity 50 to 75 kVAr

M&L for Disconnection and removing the old unserviceable power factor capacitors from the APFC Panel and Supply and fix Power capacitor cylindrical type Resin filled heavy duty 440 V, 50 Hz ,AC having of capacity 10 KVAR capacities

All as per Serial Item No 93 here-in-before; but of capacity 15 KVAR, 440 V, 3 phase

All as per Serial Item No 93 here-in-before; but of capacity 25 KVAR, 440 V, 3 phase

All as per Serial Item No 93 here-in-before; but of capacity 50 KVAR, 440 V, 3 phase

All as per Serial Item No 93 here-in-before; but of capacity 100 KVAR with sheet metal enclosure type Three phase

Supply only Heavy duty capacitors suitable for 300 kVAr, voltage grade 11 KV HT suitable to inbuilt in existing panel , having operating losses 0.35 W/kVAr.

Supply only APFC relay, 4 Stage, auto set function, having digital display.

Supply only APFC relay, 6 Stage, auto set function, having digital display.

Supply only thyristor switching module, suitable to 11 KV grade HT, 50 Hz, having high peaking inverse voltage suitable to existing panel complete all as specified and directed.

Supply only capacitor duty contactor suitable for 11 KV grade, 50 Hz, 1 NO, suitable for kVAr rating up to 5 kVAr.

Supply only electronic time switch suitable for up to 900 KVAr capacitor panel voltage grade LT/HT panel complete all as specified

Supply only LED indicator lamp (RED, YELLOW, GREEN).

Supply only push button actuator with carrier any colour.

Supply only PVC Cooling fan for APFC panel 6” sweep as per sample.

Supply and fixing on load change over switches 4 pole in sheet steel enclosure of 160 amps complete all as specified and directed Make: Make-Indoasian or equivalent of Legrand/L&T Hager/C&S/INDO KOPP/Indo Asian/Standard/Havells/ Schneider/C&S)

All as per Ser Item No 108 here-in-before, but 250 Amps rating

All as per Ser Item No 108 here-in-before, but 200 Amps rating

All as per Ser Item No 108 here-in-before, but 400 Amps rating

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer/AMF panel of up to 750 KVA and S&F new main power contactor comprising of all accessories suitable for 750 KVA voltage stabilizer.

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer 400 KVA and S&F new power contactor 3 POLE MNX 325 comprising of all accessories suitable for 400 KVA voltage stabilizer.

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer 300 KVA and S&F new power contactor 3 POLE MNX 265 comprising of all accessories suitable for 300 KVA voltage stabilizer.

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer 200 KVA and S&F new power contactor 3 POLE MNX 225 comprising of all accessories suitable for 200 KVA voltage stabilizer. Make L&T or its equivalent Havells/C&S /standard.

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer 125 KVA and S&F new power contactor 3 POLE MNX 95 comprising of all accessories suitable for 125 KVA voltage stabilizer. Make L&T or its equivalent Havells/C&S /standard.

Disconnection and removing the u/s Main contactor carefully from voltage stabilizer 100 KVA and S&F new power contactor 3 POLE MNX 80 comprising of all accessories suitable for 100 KVA voltage stabilizer. Make L&T or its equivalent Havells/C&S /standard.

Disconnection and removing the u/s PCB Unit from Servo stabilizer of capacity 750 KVA carefully and S&F new PCB unit complete of same size and capacity suitable for existing 750 KVA Servo Stabilizer all as specified and directed.

All as per item No 118, here-in-above; but of capacity 400 KVA

All as per item No 118, here-in-above; but of capacity 300 KVA

All as per item No 118, here-in-above; but of capacity 200 KVA

All as per item No 118, here-in-above; but of capacity 125 KVA

All as per item No 118, here-in-above; but of capacity 100 KVA

All as per item No 118, here-in-above; but of capacity 22.5 KVA

All as per item No 118, here-in-above; but of capacity 10 KVA

Isolated/de-energize the supply to the LT Panel/APFC Board type of capacity ranging from 200 Amps to 2000 Amps and voltage 415 Volts/230 Volts, opening the doors/covers of the cubicle enclosure for carrying out the servicing/maintenance/repairs of the Panel Board, switchgear, metering etc and re-fixing the same in place after repairs including testing and commissioning of the panel board comprising of following:- a) Cleaning inside switchgear chambers, removing dust, carbon and rusted surfaces using blower and apply insulating varnish. b) Checking condition of DMC/SMC support, insulators, cleaning and applying Dr beck red for better IR values including replacement of insulators as required. c) Tightening up of all bus bar connections, cable connections, replace bolt, nuts wherever required. d) Repairing/welding wherever required for loosen compartments to close properly Note : Contractor has to inspect the site before quoting. Any modifications/frame work and renewal shall deemed to be included in the quoted rates. Spares where required will be measured and paid under relevant items of schedule

Cleaning & Levelling LT panel surrounded area (up to 2 m beyond panel face), carrying out repair works to shutters ie., welding / jointing of hinges, making good the compartments, applying one coat of synthetic enamel paint on external surfaces of panel, complete all as specified and as directed.

S&F in replacement Indicating lamp 240 volts LED type complete all as specified and as directed by Engr-in-Charge.

Material and labour for disconnecting faulty/burnt end portion of cable by removing the cable from loop including necessary excavation & earth work, relaying and reconnecting the cable by removing faulty/burnt portion of incoming and out going cables at panel boards and preparing fresh terminals with suitable size of thimbles, lugs and glands or gland plates as suitable of any size and number of cables incoming out going to panel board.

Srinivash Engineers (BID ID -3480782)

Siddique constructions (BID ID -3494423)

Srinivasa Consructions (BID ID -3493870)