Repair/replacement and maintenance of distribution transformer, HT switch gears and connected works at Yol Cantt

Amount

M&L for servicing /testing and calibration of breaker/control panel including CT, PT and relays in control panel of VCB of capacity 630/800 Amps and rating 11 KV complete and including any spare parts as required on site as details mentioned as under:- (a) Details of servicing of breaker :- (i) Adjustment of mechanism if required. (ii) Clean the circuit breaker to remove dust and dirt. The envelope of the vacuum interrupter and insulating materials shall be wiped with a clean cloth. (iii) Apply a small amount of oil to rotary sections, sliding surfaces, pins, coupling section, etc.use grease for the operating shaft and bearings, and machine oil for other parts. (iv) Check for rust and wear. (v) Check Spring Tension and pitting of the Cluster Contacts. (vi) Visual check for rust and deformation. (vii) Check for loosened bolts and nuts, broken spring washers and snap pins etc. (viii) Check for loosened connections, rust, damaged lead wires. (ix) Check whether the contacts are damaged by arcing. (x) Checking of control circuit & tighten the connections if any. (xi) Check close & trip coil.

(xii) Checking of Jaw Contacts Conditions and repair/adjust. (xiii) Replace the jaw contacts,If required. (xiv) Improvement of resistance of epoxy insulator and epoxy body by applying post heated varnish. (xv) Replacement of Dashpot/shock absorbers . (xvi) Replacement of carbon brush of spring charging motor (b) The following test shall be carried out:- (i) Primary Injection Test of CT / PT(ii) Closing & Opening Timing Test for all three poles. (iii) IR Test with megger in open and closed condition. (iv) Contact resistance test for all three poles (v) Closing coil resistance (vi) Tripping coil resistance. (c) Testing of following relays of control panel with Secondary Injection Kit ,checking and programming of relay :-(i) Over current and earth fault relay i.e. Electromechanical Relay , Electronumeric Relay of any make/model etc and as required on site. Spairs Parts :Vaccum bottle for 11kv VCB panel as required make and model on site,spring charging motor ,Rack in Mechanism/cradle ,panel shroud ,Master trip relay and all other spare parts as required on site .All costs are included ,No extra payement will be done for Spare Parts. Note:- Work shall be carried out by authorised team of OEM.

HRC fuse of rating 2 to 6 Amp any type to suit existing system complete all as specified and directed.

Supply and fix including Taking down Epoxy/ resin cast CT of dual core dual ratio 100-50/5+5A with 5 P 10 for protection and class-I accuracy having 15 VA burden complete all as specified and directed.

Supply and fixing in replacement of Trip coil with plunger with working voltage 24 volts DC suitable for existing panel complete all as specified and directed.

Supply and fixing in replacement of Closing coil with working voltage 24 volts DC suitable for existing panel complete all as specified and directed.

Supply and fixing in replacement of Charging Spring motor of VCB trolley complete all as specified and directed.

Supply and fixing in replacement Epoxy resin cast insulator suitable for 11 KV VCB of Complete all as specified and directed.

M&L for ON load Centrifuging and dehydration including filteration and cleaning of transformer oil by dehydration machine of 11/0.433 KV transformer at site and topping up deficient transformer oil including testing of samples before and after dehydration and filteration complete all as specified and directed. Note :- Deficient quantity of Transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only.

M&L for alternative arrangement by hiring, l transportation of transformer of capacity upto 400 KVA in place of unserviceable copper /aluminium wound from transformer of capacity upto 400 KVA, opening top cover, and carrying out the following work complete all as specified and directed :- (a) Dismantling of all attachment viz breather assembly, conservator, oil temperature gauge, HT/LT bushing minor repairs etc. as required and directed and keeping aside for reuse. (b) Taking out the core with winding assembly. (c) Removing of complete winding from core and dismantling the core, cleaning of core laminate sheet and keeping aside for reuse (d) Cleaning of complete transformer tank oil fins, removing of sludge, and making the inside surface of tank dry by blowing of hot air as directed and specified. (e) Painting of outside surfaces of transformer complete by means of spray machine as directed. (f) Rewinding of HT/LT leg coil complete using copper wire /strip of appropriate gauge, size and turn as per existing with double paper coated insulation including all requisite insulating materials like packing sleeves, separator, tapes etc. heating, varnishing the core and winding assembly after framing up top and bottom steel structure of transformer all as specified and directed.

(g) Replacement of all insulating materials other than incorporated for rewinding of HT/LT coils as per existing. (h) Fixing only HT procelain bushing with studs, nuts, washers 3 Nos. and LT procelain bushing with studs, nuts, and washers 4 Nos. and connection with primary and secondary windings and reconnecting with the main terminals as required and directed. (j) Replacement of all unserviceable gasket from top cover, HT/LT bushing with new one by using rubberised gasket sheet 4.0mm/6.0mm thick duly pasted with suitable adhesive . (k) Replacement of unserviceable bolts with new one and fixing of existing serviceable bolts, nuts, washers of different sizes and tightening properly. Note :- (i) The contractor shall give written warranty of one year from the certified date of completion for the repaired transformer. (ii) HT/LT leg coils and transformer oil required for top up shall be measured and paid separately under relevant items of this Schedule here-in-after as supply only. (iii) Contractor shall also provide Hydra for Loading & Unloading and Vehicle for tranportation of transformer from Yol cantt any area to Reapir shop and get back to Yol cantt after repair.

Supply only transformer oil of approved quality as per IS having dielectric strength of 45-60 KV in 2.5mm gap for filling in transformer or for topping up as required and directed.

Supplying and fixing in replacement (at site/workshop), Porcelain Transformer bushing on LT (440 Volt) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 400 KVA and re-connecting electrically and mechanically, testing complete all as specified and directed. Note-: The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and suitable size pad type bus bar almuminium and nut bolt washers etc.

Supplying and fixing in replacement (at site/workshop), Porcelain Transformer bushing on HT (11 KV) side, including brass stems conical bush and gasket after disconnecting electrically and mechanically for indoor/outdoor transformer of capacity upto 400 KVA and connecting electrically and mechanically, testing complete all as specified and directed. Note.The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transforer oil, opening of top cover by unscrewing nut, bolts washers and suitable size pad type bus bar almuminium and nut bolt washers and reconnection.

Supplying and fixing in replacement, Silica Gel Breather assembly including vent pipe and Silica Gel for indoor/outdoor transformers, capacity upto 400 KVA complete all as specified and directed.

Rewiding of HT/LT coils of transformer of capacity 25 KVA to 400 KVA with super enamelled copper winding wire of appropriate gauge and proper number of turns alongwith insulating material eg leatheroid, paper insulation, cotton tapes, Empire tapes, wooden block packings, PVC sleeves, soldering and varnishing with insulating varnish , heating/drying etc complete all as specified and directed by Engr-in-Charge.

Rewiding of HT/LT coils of transformer of capacity 25 KVA to 400 KVA with super enamelled Aluminium winding wire of appropriate gauge and proper number of turns alongwith insulating material eg leatheroid, paper insulation, cotton tapes, Empire tapes, wooden block packings, PVC sleeves, soldering and varnishing with insulating varnish , heating/drying etc complete all as specified and directed by Engr-in-Charge.

Maintenance & repair of Compact substation(3Way/4way) from OEM at various location of following capacity (Note: rate quoted deemed to be inclusive of any type of T&P, testing kits, wiring of any type of existing size wire & tagging, CT's, metering and Metering Display device, manpower , including any Spare parts parts required at site for any type of maintenance). 1) IEC 62271.202, Type CSS - SN , Transformer: 11/0.433kV, UP TO 400 kVA The scope of work is as follow:- A) RMU 630A (HT Side) 1. Checking and making fuctionality of RMU mechanism in auto and manual mode. 2. Checking and toping up of SF6 gas of any quantity, rate quoted deemed to be inclusive of any type of T&P required at site and producing certifate of same from OEM. 3. Checking and making functional breakers ON/OFF operation, manually & electrically. 4. Functional checking of all electrical & mechanical interlock operation of RMU. 5. Testing of CTs & Relays with testing kit and producing certificate of same from OEM. 6. Caliberation of Relays and producing certifate of same from OEM.

B. Transformer (upto 400 KVA). 1. Checking and making Transformer functional. 2. Checking and toping up of oil level in T/F. 3. Checking and making Functional of cooling fan, if available. 4. Checking function of hooter/Buzzer. 5. Routine test of Transformer and producing test certificate of same. C. LT Side. 1. Checking and making all the ACB & MCCBs fuctional. 2. Checking and making all the ACB/MCCBs ON/OFF operation manually & electrically. 3. Checking and adjusting and servicing all the ACB and ACB relay setting as per load conditions, Metering devices, CT's and wiring of any type and producing certificate of the same. 4. Repair/replacement to APFC panel capacitor bank of 25KVAR x 4 (max) and APFC relay setting, repairing LCD display, repairing/replacing CT's, fans, contactors of any type, fuse is deemed to be included in quoted rate. 5. Repair replacement of battery charger upto 24 Volts is deemed to be included in quoted rate.

6. Repair/replacement of flash out Bus bar & insulators of any length, rating and any quantity is deemed to be included in quoted rate. 7. Repair/replacement of unserviceable handle assembly FNX/FN type, auxillary contact kit, LED indication of any colour, push button etc. is deemed to be included in quoted rate. Note:- Work shall be carried out by authorised team of OEM.

M&L for servicing of ACB with Microprocessor (Make: crompton greaves), Range (800 - 1250Amps) 415V, 50Hz,50 KA, after taking shut down and properly replacing flash out bus bars, settings relays and their mechanism, repairing charging mechanism & handle, removing wornout parts, repacing and testing and commissioning, complete all as specified and directed by engineer-in-charge. Note:- Any part required for servicing of ACB are deemed to be inclusive in the quoted rate.

S&F of Space Heater of rating 80W/200W with Thermostat(25 degree to 65 degree) in Bus Chamber , Cable chamber & Breaker Chamber with Copper Wiring for connection from Control chamber to given location incliding all accessories i.e lugs,Cable tie, screw,nuts etc complete all as specified and directed by engineer-in-charge.

Earthing complete with GI earth plate 600x600x6mm thick electrode and 32x6 mm GI strip as earthing lead buried directly in ground (Earth pit not less than 2.25 Mtr deep below ground level) with top edge of the plate not less than 1.5 Mtr below normal ground connected to GI strip earth lead by means of bolts, nuts, check , nuts and washers of galvanised iron or steel all as shown on electrical plate no. 3 including 40 mm dia medium grade GI protection pipe, 20mm dia GI medium grade watering pipe, funnel, wire mesh , charcoal dust, PCC pit and 50mm thick RCC cover, earth work in any type of soil connected to earthing test point complete all as specified and as directed. Note:-GI strip beyond 7.5Mtr length from earth electrode shall be measured and paid separately.

Erthing complete with Copper plate plate 600x600x3.15mm thick electrode and 20x3 mm Copper strip as earthing lead buried directly in ground (Earth pit not less than 2.25 Mtr deep below ground level) with top edge of the plate not less than 1.5 Mtr below normal ground connected to Copper strip earth lead by means of bolts, nuts, check , nuts and washers of galvanised iron or steel all as shown on electrical plate no. 3 including 40 mm dia medium grade GI protection pipe, 20mm dia GI medium grade watering pipe, funnel, wire mesh , charcoal dust, PCC pit and 50mm thick RCC cover, earth work in any type of soil connected to earthing test point complete all as specified and as directed. Note:- Copper strip beyond 7.5Mtr length from earth electrode shall be measured and paid separately.

Cable Jointing kit out door, heat shrinkable type suitable for XLPE cable of size 95 sqmm 3 core with working voltage 11000 volts complete all as specified and directed by Engr - in- Charge.

Deduct Credit Amount as per Schedule of credit as details given on Srl Page No 23 of tender doucments.

M/S MALHI CONSTRUCTIONS (BID ID -3338674)