REPAIR/MAINT/CALIBRATION OF VCBS/OCBS, 33/11KV AND REPAIR/REPLACEMENT OF HT JOINTS HT CABLE, SERVICING AND REPAIR/MAINT OF TRANSFORMER OF 33KV, 11KV, SERVO STB AND OTHER CONNECTED WORKS AT DRDE GWALIOR UNDER GE I RND DELHI

Amount

Disconnecting & taking out non functional VCB and SF-6 Braker of any description and any make of rating 33 KV,1250 Amps dismantling / opening of the VCB / SF-6 Braker for servicing / overhauling, taking out and removing unserviceable/defective parts including cleaning & servicing ,greasing, oiling of the parts etc and replacement of unserviceable parts with new one, reassembling the VCB after overhauling / servicing and its testing complete all as specified and directed. Note: Spare part required for replacement shall be measured and paid separately as supply only.

Supply only following spare parts for 33 KV VCB.

Micro switch

Motor cut of limit switch

Closing coil 110 VDC

Triping coil 110 VDC

Segment gear Assembly (Full Teeth-Big )

Triping Half shaft

Trip Catch with linkage assembly

Spring charging motor assembly 230 VAC

Motor Gear Box Assembly.

Closing Half shaft

Auxiliary switch assembly.

Ratchet wheel with key & Set of pawls with pin

Motor contactor

Limit switch

M&L for Protection CTs Testing (33kv)

M&L for Protection PTs Testing (33kv & 11 kv)

M&L for Numeri breaker protections relay testing various Make- 33 kv Brakers panels complete all as specified and directed.

M&L for Auxiliary Relays testing in 33 KV panels complete all as specified and directed.

M&L for differential protections relay testing complete all as specified and directed.

M&L for Auxiliary Relays testing in 33 kv panels. OTI, WTI, Bush complete all as specified and directed. Note for ser item No. 3 to 8:- (i) All testing should be done by the authorised service centre only. (ii) All expanditure/charges for testing team will be deemed to be included in the quoted rates and no extra pyament will be done by the Department. (iii) Test results shall be submit to the Engineer-in-Charge after complete testing.

Disconnecting and taking down old unserviceable control cable any size any description and supply, fixing, testing and commissioning of LT 1100 volts 2.5 Sqmm 8 core copper conductor armoured cable connecting the cable in positioning properly by providing suitable new copper lugs GI bolts & Nuts washers etc complete all as specified and directed.

Disconnecting and taking down the unserviceable/damaged/non operational existing lightening arrestor of 33KV Switching yard and supply , fixing & testing and commissioning of new lightening arrestor 33KV, 10KA suitable for 33KV and maximum voltage of 36KV for (MRS) with solid earthed natural system comprising of Metal oxide elements suitable for ACSR Conductor alongwith the insulating base structural work and all as specified and directed.

Taking down existing unserviceable air break switch gang operated outdoor type upto ratio 400 Amps of 33 KV and supply and fix new air break switch gang operated Triple pole mechanically operated mounted on insulator and steel frame with operated mechanism welded from tubular rotating type switch complete all as specified and directed.

Taking down existing unserviceable Drop out fuse set outdoor type upto ratio 400 Amps of 33 KV and supply and fixDrop out fuse set mounted on insulator and steel frame complete all as specified and directed.

Disconnecting GOD of capacity 33 KV, dismantling of GOD for complete repair & overhauling and checking the serviceability of spares and operating mechanism and replacement of defective/worn out parts for making the GOD functional including reassembling of operating mechanism oiling & greasing of moving parts, fine setting of mechanism, making the GOD perfect operational in manual mode complete all as specified and directed. Note :- The quoted rates of the contractor includes for fixing the serviceable parts in position and replacement of unserviceable parts with new parts. The new replaced parts shall be measured and paid for separately under appropriate item of BoQ as `supply only ‘

Supply only following spare parts for 33 KV GOD:-. Note:-Fixing & testing element of following item is deemed to be included under Sch `A’ item No 13 above.

Male contact

Female Contact

Tinned copper flexible jumper

MS Carrier

Back Connector plate

Material and Labour for earthing complete with GI earth plate electrode 600mmx600mmx6mm thick burried in ground vertically to a depth not less than 2.25meters below ground level with top edge of the earth plate at a depth not less than 1.5 meter below the ground level, earth plate surrounded 15cm thick layers of common salt and charcoal dust starting from ground below 15 cm of earth plate and up to 15 cm above the same. GI plate connected with galvanised iron strip of 32x6 mm by means of Copper nuts, bolts and washers. Strip laid in 40mm dia light grade GI pipe as protection from top of the plate up to test point (cost of protection pipe up to 7.5 meters from earth electrode will be included in the rates quoted by the contractor) with following complete all as specified and shown in electrical plate No 3 of SSR Part-I & testing on completion :- (a) GI strip of size 32mm x 6mm. (b) Watering pipe GI light grade 20mm dia from top of the earth electrode up to MS funnel with wire mesh embeded in floor of PCC earth pit. (GI Funnel should properly tightned on GI watering pipe and embeded in PCC floor of earth pit with open top suitable for watering of earth pits) (c) Excavation & earthwork in any type of soil PCC earth pit 30x30x30cm constructed in PCC 1:2:4 type B1 exposed surfaces smoothly finished with 15mm thick cement mortar 1:6 plaster including RCC pit cover 50mm thick 1:2:4 type B1 reinforced with 8mm dia mild steel bar 75mm centre to centre with 2 Nos MS handles of 12mm dia suitable for carrying of pit cover.

M&L for earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or burried in ground or drawn in conduit/pipe or any other indicated situation for loop earthing etc as required 32x6 mm galvanised iron strip complete all as specified and directed.

Disconnecting and taking out old unserviceable Ammeter of any description and in any position and supply, fixing, connecting, testing and commissioning of new digital Ammeter size as per site requirement of range for suitable for panel, 11 KV HT VCB complete all as specied and directed.

Disconnecting and taking out old unserviceable Volt Meter of any description and in any position and supply, fixing, connecting, testing and commissioning of new digital Volt meter size as per site requirement range for suitable for panel, 11 KV HT VCB complete all as specied and directed.

Disconnecting & taking out non functional VCB of any description and any make of rating 11 KV, 400 Amps to 800 Amps dismantling/opening of the VCB for servicing/over hauling taking out and removing unserviceable/defective parts including cleaning and servicing greasing, oiling of the parts etc and replacement of unserviceable parts with new one, reassembling the VCB after over hauling /servicing and its testing complete all as specified and directed. Note: - The quoted rates of the contractor includes for replacement of unserviceable parts with new parts. The new replaced parts shall be measured and paid for separately under appropriate item of BoQ as supply only.

Supply only following spare parts for 11 KV VCB 400 Amps to 800 Amps capacity of any make:- Note: Fixing and testing element of following item is deemed to be included under BoQ item No 18.00 above.

Isolating Contacts.

Closing shaft.

Triping shaft.

Big Gear Assembly.

Small Gear Assembly.

Motor Cut off limit switch.

Micro switch assembly (ZZ).

Breaker Control switch.

Spring charging Motor 230 VAC.

Segment Gear Assembly (Square type).

Trips catch assembly.

Bus bar support insulator 61mm dia.

Epoxy bushing insulator for 11kv.

ON/OFF push button Assembly.

Charge discharge indicator assembly.

Indicating lamps Blue 230 VAC spring charging.

Indicating lamps Red,Yellow,110 VAC.

Indicating lamps Blue 110 VAC.

CGI 14N Numerical Relay.

Closing / Trip coil.

Spout busing upper & lower 11kv 400 to 800A with CC parts.

CRC Spray for lubricant.

Vacuum interrupter.

Decarbanising\cleaning complete HT 11 KV 3 Phase bus bar chamber of HT panel electrical connection rods complete HT VCB switch gear arrangement incoming and out going breaker after removing complete monoplast putty cleaning with CTC solution and ensure proper decarbonising refixing the same after applying beacon (red) insulating compound to the spout checking all connections tightening the nut and bolts washers of incoming and out going connections complete all as specified and directed. Note : The rate is inclusive for replacement of worn out bolts nuts & washers, lugs, glands etc

Dismantling & Refixing after repair of wiring of Numerical braker protections relay testing various make 11kv relays all as specified and directed

Dismantling & Refixing after repair of current transformar testing various make 11kv relays all as specified and directed

Dismantling & Refixing after repair of protection PTs testing various make 11kv relays all as specified and directed

Dismantling & Refixing after repair of Auxiliary relay testing various make 11/33kv panels all as specified and directed

Dismantling and Taking out old Numerical relay wiring any type and any description and replace new wring materials, lugs,ferrules, cable tie and 2.5 Sqmm wire. Auxiliary relay testing various make 11/33kv panels all as specified and directed

Dismantling of inter panel wiring testing and checking of AC/DC supply.Auxiliary relay testing various make 11/33kv panels all as specified and directed

Disconnecting and taking down unserviceable current transformer of any description and in any position and supply, installation, commissioning and testing of cast resin type 11 KV current transformer having ratio of 200+100\5+5 A having protection core class 5P 10, burden of 15 VA and metering core class 1.0 and burden of 15 VA breaking caP of 13.1 KV for 1.0 second all as specified and directed.

Supply and installation in repair automatic DC unintrupted power supply system for 24/30 v DC for 33/11 KV protection equipments with following specification: (A) Electrical specifications:- (1) AC input voltage 230V RANGE 180V TO 264 V (2) AC input friquency (nominal) 50 HZ (3) DC output voltage (nominal for load) 24 to 30 VDC (4) DC OUTPUT FLOAT VOLTAGE FOR BATTERY 40.5V (5) DC output boost voltage for battery 43.2v (6) DC output current for load( nominal) 8A (7) DC output current for (nominal) for battery 15A. (B) PROTECTION:- (1) AC input supply - fuse (2) DC out put Short circuit supply/overload - fully protected (3) Reverse battery protection - yes. ELECTRICAL (C) ACCESSORIES:- (1) AC input supply/mains available - green led (2) DC output - green led (3) FLOTE CHARGED MODE - GREEN LED (4) bOOST CHARGED MODE - YELLOW (5) Battery dischharged/low - red led (6) Battery 12V 150 AH lead acid tall tubulator plate invertor battery low maintenance -03 Nos (7) Battery reverse polarity - red led. Make of Charger-AE/SEIMENS/POWER EQUIPMENT/ REL/Universal. Make of Battery:- Exide/Amron/Luminous.

Excavation in trenches in soft/loose soil not exceeding 1.5 metre deep and not exceeding 1.5 mtr width and getting out including forming bottom surface to required slope/gradient for laying cables/pipes etc. all as specified and directed including removing cable protection PCC covers/ bricks & stacking serviceable covers / bricks for reuse and disposal of unserviceable covers within 50 m all as directed. Note : Excavation shall be made carefully in order to avoid damage of existing cables and protection covers

Returning, filling in including spreading, leveling, watering and well ramming in layers of 25 cm thick after the cables etc. are laid, jointed & tested complete all as specified and directed.

Removal of surplus excavated spoil not exceeding 50 Mtr distance and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and directed.

Material & labour for sand filling with clean dry fine sand unwashed including gently punning around cables in trenches for cable protection complete all as specified and directed.

Supplying & Laying un-reinforced pre cast flat concrete cable protection cover of class HV, type I, size 300mm x 180mm x 40mm, factory made, complete all as specified and directed.

Disconnecting, taking out and removing old existing unserviceable underground, HT 11 KV cable of any description and in any position complete including taking down protection pipe etc all as specified and directed for the 95 to 120 sqmm size.

Supply, laying , jointing & testing 11 KV (Earthed) , aluminum conductor, screened, XLPE insulated, armoured shielded and PVC sheathed cables conforming to IS 7098 (Part-II) amended upto date having cross sectional area 95 Sqmm 3 core complete all as specified and directed.

S&F in repair jointing and testing for outdoor type heat shrinkable end termination joint suitable for 11 KV, XLPE insulated cable of 95 Sqmm 3 core including cutting the faulty outdoor end termination joint of any description and in any position. Note :-(i) All Necesary T&P Blow lamp, HT Megar shall be arrange by the Contractor.

All as per ser item No. 36.00 above but indoor type heat shrinkable end termination joint.

All as per ser item No. 36.00 above but Straight through heat shrinkable end termination joint.

All as per ser item No. 36.00 above but Straight through heat shrinkable end termination joint suitable for 33 KV.

Demolition for cement concrete/road in ground floor and paving n. exc 15 cm thickness below or above ground level including removal of rubbish to a distance exc 1.50 Km and n.exc 5.00 Km etc complete all as specified and directed

M&L for 100 mm thick PCC 1:2:4 type B2 (using 40 mm graded stone aggregate) complete all as specified and directed .

M&L for 40 mm thick PCC 1:2:4 type B1 (using 20 mm graded stone aggregate) as in floor finishing even and fair with and making impression of expanded metal, whilst concrete is green & making good as per existing surface etc complete all as specified and directed.

Supply, laying & jointing GI water tubing, 100 mm bore,light grade as in sleeving etc laid in trenches / ducts / horizontal bore hole including taking down old one complete all as specified and directed.

Removal of existing broken/damaged PCC duct over of any description and Material & labour for duct cover of pre cast RCC (1:2:4) type B-1 (using 20mm graded stone aggregate) of size 430mm x 600mm x 60mm thick, cover reinforced with 8mm dia TMT bars @ 150mm c/c both ways with 02 Nos 12mm dia MS round bar handle with and including necessary form work complete all as specified & directed. Note: Reinforcement shall be deemed to included in this item.

Removal of old stone aggregate cleaning screening and relaying at same or another location complete all as specified & directed

Material and labour for 40 to 63 mm graded stone aggregate of black trap / granite / basalts spread in layers not exceeding 25cm thick, & well rammed to a true surface removal of old stone aggregate cleaning screening cum and relaying at same or another location complete all as specified & directed

Material and labour for preparation of old painted surfaces of floor mounted indoor/outdoor type transformer for the following capacity by cleaning/rubbing with course cloth wire brushes to remove dust deposits oil grease and painting with two coats of synthetic enamel paint complete including writing the SM No/MES No on transformers with white paint in the existing style/pattern complete all as specified and directed.

100 to 200 KVA

250 to 315 KVA

400 to 500 KVA

Disconnecting and taking down old existing transformer up to 500 KVA capacity of any description and in any position from the existing indoor/outdoor substation, shifting the transformer to new location not exceeding 6KM away from the starting point and installation, fixing and commissioning the transformer connecting the incoming and outgoing connection including testing the transformer all as specified and directed

Dismantling andTaking down the unserviceable breather assembly with silica gel complete for 100 KVA to 1000 KVA transformer and supply and fix cast iron breather assembly complete with breather unit and silica gel including connecting with proper rubberized gasket transformer complete all as specified and directed.

Disconnecting defective indoor/outdoor type transformer of various capacities 100KVA to 160KVA from HT/LT sides taking out transformer oil completely storing the oil in suitable container (to be provided by the contractor) lifting the top cover and core assembly carefully and checking the condition, refilling the transformer oil completely after necessary repair, and fixing the top cover complete all as specified and directed. Note:- (a) Rewinding of the transformer shall be measured and paid separately. (b) In case of major repairs/replacement in transformer which cannot be undertaken at site the transformer shall be shifted to civil workshop and the quoted rate shall be exclusive of this aspect. (c) Dismantling of core and repairs shall be measured and paid separately. (d) Shifting of transformer shall be measured and paid separately.

All as per item No 50.00 above but for transformer of capacity exceeding 200 KVA but not exceeding 315 KVA.

All as per item No 50.00 above above but for transformer of capacity exceeding 400 KVA but not exceeding 500 KVA.

All as per item No 50.00 above above but for transformer of capacity 1000 KVA .

Dismantling and taking out the existing unserviceable circuit tap changer assembly and supply and fix off circuit tap changer assembly suitable for any make of 100KVA to 500 KVA transformer with 7 tapping position including opening top cover breaker etc, complete all as specified and directed. Note: - Contractor is solely responsible for making good of any damage to transformer during tap changing operations.

Dismantling and taking out the existing unserviceable circuit tap changer assembly and supply and fix off circuit tap changer assembly suitable for any make of 1000KVA transformer with 7 tapping position including opening top cover breaker etc, complete all as specified and directed. Note: - Contractor is solely responsible for making good of any damage to transformer during tap changing operations.

Supply, filling and for topping up the transformer/OCB’s with new transformer oil duly filtered with filtration plant. Note:- (a) The transformer oil shall be type EHV confirming to IS 3357 of 1983 (b) Mineral oil grade 'B' shall be used. (c) The transformer oil should have a high dielectric strength not less than 40KV. Make: Indian oil corporation/BPCL/HPCL.

M&L for isolating the HT/LV supply from power transformer 2.00 to 3.15 MVA cap by disconnecting HT 33 KV line & 11 KV line and opening clamps, bus bar extension and isolating disconnecting HT 33KV and 11KV connecting to transformer by opening clamps, bus bar extension and isolating the transformer from bus bar out door type, shifting the transformer to civil workshop. Decanning transformer oil complete taking out cores and windings from body and put in oven for heating the coils for improvement of insulation resistance till proper insulation results achived, cleaning transformer body inside and out side complete, painting with two coats of super enamelled paint inside and out side the body complete after scratching and removing old paint layers, refixing cores and coils in transformer body. Refilling oil, dehydration and filteration of oil to improve the dielectric strength /insulation value of transformer oil upto 60 KV and carryout test results such as megger test, Ratio Test, magnetic balance test, short circuit test, full load test, including replacement of wornout nuts bolts, all gaskets, packing sheets, sleeves, temp gauge etc complete reshifting the transformer at MRS install on plate form and connecting HT 33 KV /11 KV connection incl replacement of clamps nuts bolts & washer complete connecting and making control wiring system in serviceable condition and testing of transformer on full load complete all as specified and directed.

Filtration/dehydration of transformer oil through filtration plant to improve the dielectric strength/insulation value of the transformer oil upto 60KV. NOTE:- (a) The contractor will take shut down orders in working before commencement of the work from Engineer-in-charge. (b) The contractor shall ensure no wastage in transformer oil (c) The contractor solely responsible for any damage to the transformer during filtration operations. He is responsible for making good any damage to the transformer at his own cost without any extra cost to the department (d) The contractor shall ensure that the conservator tanks are full to its level before starting the dehydration.

S&F in repair temperature gauge of existing specification/Model complete all as specified and directed.

Supply and fixing silica gel complete all as directed.

Supply only insulation material PCB electrical grade such as barriers coil to coil insulation block and rings insulation cylinders, ebonite sleeves complete all as directed.

Removing and refixing of new HT & LT coils/strips, disconnecting the 100 KVA to 160 KVA 11KV/433Volts indoor/outdoor transformer HT/LT side, taking out transformer oil completely, storing the oil in suitable container/barrels properly cleaned ones (to be provided by the contractor) lifting the transformer from the sub station shifting of transformer to civil workshop lifting the top cover and core assembly carefully and taking down 11KV/ 433 volts copper LT coils and 11KV HT coils from the transformer and fix new HT & LT copper coil made out of proper size suitable for DPC copper wire of high quality suitable rating sleeve insulating materials like varnish etc, complete after necessary arrangement with new coils, necessary insulation spacing blocks, runners and proper refixing of core complete all as specified and directed.

Note:- (i) HT & LT copper coil/strips and insulation material PCB electrical grade such as barriers coil to coil insulation block and rings insulation cylinders, ebonite sleeves shall be measured and paid separately under relevant item of schedules. (ii) The rate quoted is deemed to be included for cutting / chipping of RCC and for the minor grill work such as PCC, plastering foundation work. (iii) Proper drying shall be done in drying chamber after drying, taking the core coil assembly, filling the filtered transformer oil having good dielectric strength, replacement of suitable size rubberized cork gasket, bolts and nuts etc complete by fixing top cover, conservator etc, through cleaning and painting to the transformer with good quality paint complete and testing complete at civil workshop. (iv) Transformer oil shall be measured and paid separately under relevant item of schedule. (v) Installation of transformer, testing and connecting the both HT & LT cables, commissioning of transformer after checking voltage and all loading the transformer to the full load all as specified and directed. (vi) The cost of coil will be inclusive of varnish sleeving and insulating material.

All as per item No 62.00 above but for transformer of capacity exceeding 160 KVA but not exceeding 315 KVA.

All as per item No 62.00 above but for transformer of capacity exceeding 315KVA but not exceeding 500 KVA.

Supply only new LT copper strips made out of proper size of DPC copper strips super enameled of high quality matching with the existing impedances and insulation for 100 to 1000 KVA transformer all as specified and directed.

Supply only new HT copper coil made out of proper size DPC copper wire super enameled of higher quality matching with the existing impedance and insulation for 100 to 1000 KVA transformer all as specified and directed.

S&F in repair HT bushing assembly including brass stud nuts washers insulators etc. suitable for indoor/outdoor transformer of capacity 100 to 1000 KVA complete all as directed.

S&F in repair12mm dia LT bushing assembly including brass stud nuts, check nuts washers oil seal insulators etc complete all as specified and directed by Engineer-in-Charge.

All as per item No 68.00 above but of size 16mm dia.

All as per item No 68.00 above but of size 20mm dia.

Opening the 1000 KVA transformer cover along with the conservator by removing the nut bolts then after removing the internal HT & LT connections by taking them out by removing studs, bushings taking out the core winding assembly out of the tank of the transformer, cleaning of core assembly by spraying forced TR oil, having ratio 11/0.433KV, draining & decanting of burnt transformer oil and clearing of sludge deposited in the tank with CTC for the transformer. Reconditioning of LT coil, Heating of core winding assembly in hot chamber for 48 hours and remove all the moisture present in it, removal of leakage of tank if any by carefully welding, refilling transformer oil to tank with filteration upto suitable die electric strength to tank, after putting the core-winding assembly into the tank, reassembling making the internal HT & LT connections by fixing the studs, bushing & fitting top cover by replacing cork sheet gasket along with conservator, testing the transformer in the workshop duly filled with oil, including transportation of transformer from site to workshop and vice a versa,all as directed by Engineer-in-Charge, for various capacities as under:- Note:- (i) unserviceable items required for repairs shall be measured and paid under relevant item of this schedule. (ii) Transformer oil with die electric strength not less than 40 KV either new or filtered shall be filled and shall be measured and paid separately under respective item.

Opening the 250 KVA to 500 KVA transformer cover along with the conservator by removing the nut bolts then after removing the internal HT & LT connections by taking them out by removing studs, bushings taking out the core winding assembly out of the tank of the transformer, cleaning of core assembly by spraying forced TR oil, having ratio 11/0.433KV, draining & decanting of burnt transformer oil and clearing of sludge deposited in the tank with CTC for the transformer. Reconditioning of LT coil, Heating of core winding assembly in hot chamber for 48 hours and remove all the moisture present in it, removal of leakage of tank if any by carefully welding, refilling transformer oil to tank with filteration upto suitable die electric strength to tank, after putting the core-winding assembly into the tank, reassembling making the internal HT & LT connections by fixing the studs, bushing & fitting top cover by replacing cork sheet gasket along with conservator, testing the transformer in the workshop duly filled with oil, including transportation of transformer from site to workshop and vice a versa,all as directed by Engineer-in-Charge, for various capacities as under:- Note:- (i) unserviceable items required for repairs shall be measured and paid under relevant item of this schedule. (ii) Transformer oil with die electric strength not less than 40 KV either new or filtered shall be filled and shall be measured and paid separately under respective item.

Labour charge for Inspecting/Checking for operation of the servo voltage stabiliser 400 KVA to 1000 KVA, servicing /maintenance up to satisfactory level, so that the constant output voltage (For single phase 230-240 Volt & for 3 phase 415 volt with +- 2.5% volt correction factor ) can be supply to labs,in respective incoming voltage 360 Volts to 470 Volts with any variation in phase to phase. Note: Spare parts requied for replacement shall be measured and paid separately as supply only.

Supply only Servo digital pane.

Supply only Servo motor.

Supply only Voltmeter 96mm up to 500 Volt.

Supply only Ampmeter 96 mm.

Supply only RC.

Supply only Carbon brush.

M/s A.K. Trading Co.

M/s Sagar Construction

GUPTA ENGINEERING WORKS

M/s SIYA ENGINEERING CO