REPAIR/MAINT TO VARIOUS POWER TRANSFORMERS, DISTRIBUTION TRANSFORMERS, RENEWALS OF EARTHINGS TRANSFORMER YARD ETC AND CONNECTED WORKS AT JHANSI CANTT UNDER AGE E/M AT GE JHANSI

Amount

Dehydration / Filtration of transformer oil of power / distribution transformer indoor/out door type of any capacity installed at various locations at Jhansi Cantt, AAU & Caleb Vihar with mobile type centrifuge dehydration / filtration machine/plant to achieve di-electric strength of 40 KV or above for 1 minute at 2.5 mm gap as per relevant IS/IEC including testing and recording the values of dielectric strength of oil before and after filtration at site with transformer oil testing machine complete all as specified and directed. Note: Record of Di-electric strength before and after dehydration / filtration duly signed by Contractor, JE E/M and Engineer-in-Charge shall be submitted by contractor to the department before claiming payment through RAR / FB.

Re-filling / Topping up of new transformer oil into the body / conservator tank of transformer to the desired level complete all as specified and directed. Make: Power Oil / Electrol / Transol (Savita) / Servo ELectra. Note: The dielectric strength of oil should not be less than 40 KV.

Isolating the defective transformer by carefully disconnecting the primary (HV), secondary (LV) and earth connections, drawing out the oil from transformer to required level and storing in cleaned containers, opening the top cover and conservator tank from transformer, identifying and rectifying the defects and re-fixing back the same duly replacing with new rubberized cork sheet gasket for transformer top cover and new GI bolts, nuts & washers of suitable size and reconnecting all primary (HV), secondary (LV) and earth connections as per the original, re-filling the transformer oil to required level and testing on completion for satisfactory performance complete all as specified and directed by Engineer-in-Charge for the following capacity of transformers:- (Note : Re-winding and replacement of HT / LT bushings if required shall be measured and paid separately. However, the cost of rectification of minor defects such tightening of loose connections, replacement / connecting of copper strips to bushings, provn of nuts, bots, washers etc. is deemed to be included in quoted rates.)

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Lifting the transformer from its plinth / pole structure inside the fence area with the help of suitable crane and transporting to workshop for carrying out necessary repairs and bringing back and re-installing in its original place complete all as specified and directed for the following capacity of transformers:- Note : Repairs required shall be measured and paid separately under relevant items of BOQ.

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Supply and fix in replacement of HV side porcelain transformer bushing with brass stud, nuts, bolts & washers including oil seal and gaskets suitable for following rating of step down transformers complete all as specified and directed :-

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Supply and fix in replacement of LV side porcelain transformer bushing with brass stud, nuts, bolts & washers including oil seal and gaskets suitable for following rating of step down transformers complete all as specified and directed :-

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Opening the LV side cable box and disconnecting the LT cables and Supply and fix in replacement of oil seal and gasket suitable for LV side bushing of 11KV/433V transformer of rating up to 500 KVA complete all as specified and directed.

M&L for preparation of old painted surfaces of outdoor/indoor type power / distribution transformers and painting with synthetic enamel paint of approved colour using spray painting machine / spay gun through out externally and writing machine number in white colour on black background complete all as specified and directed for following rating of transformers:-

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Taking out complete core from transformer, cutting and removing burnt out winding [primary (HV) and secondary (LV)] and re-winding the same with super enameled copper conductor of gauge wire size 1.5mm together with insulation materials, applying varnish, pre-heating in heating chamber, re-assembling the transformer as per the original and testing on completion complete all as specified and directed for transformer of capacity upto 500 KVA of any make.

Disconnecting the defective transformer of any rating from HV side, LV side and earthing connections and carefully shifting the trolley mounted mobile type transformer of capacity 400 KVA from one location to other location within the Jhansi Cantt Area including AAU & Caleb Vihar with the help of tractor or any suitable means of transportation and making all HV, LV and earthing connections and testing complete all as specified and directed.

Supply and fix in replacement of breather assembly complete with new silica gel and fixing accessories suitable for following rating of existing transformers of any make:-

Power transformer upto 5 MVA, 33 KV / 11 KV

Distribution transformer up to 100 KVA, 11/0.433 KV

Distribution transformer 160 KVA to 250 KVA, 11/0.433 KV

Distribution transformer 300 KVA to 500 KVA, 11/0.433 KV

Supply and replace silica gel into the breathers of power / distribution transformers of any capacity and make complete all as specified and directed.

Supply and fix in replacement of MCCB 400 A ,4 pole ,50 KA (ICs = 100% ICu) with adjustable thermal magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables complete all as specified and directed.

Supply and fix in replacement of MCCB 500 A ,4 pole ,50 KA (ICs = 100% ICu) with adjustable thermal magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables complete all as specified and directed.

Supply and fix in replacement of MCCB 630 A ,4 pole ,50 KA (ICs = 100% ICu) with adjustable thermal magnetic setting with bus bar spreader links for connecting both incoming and outgoing cables complete all as specified and directed.

M&L for earthing complete with galvanized iron earth plate electrode 600mm x 600mm x 6 mm thick buried directly in ground (earth pit not less than 2.25 meters deep below ground level) with top edge of the plate not less than 1.5 meters below normal ground level connecting to GI strip 32x6 mm as earthing lead by means of bolts, nuts, check nuts and washers of galvanized iron or steel and earth wire protected by 50mm dia GI pipe medium grade and connected to pole structure/ panel board/earthing test point all as shown in electrical plate No. 3 of SSR Part-I(2009) and testing on completion complete all as specified and directed. Note :- The unit rate quoted shall also include for excavation, earth work in any type of soil, plain cement concrete 1:3:6 mix, Type C1 pit, 40mm thick RCC 1:2:4 mix type B1 cover reinforced with 8mm dia TMT bras @ 150mm C/C both ways, GI funnel with watering pipe, wire mesh, protection pipe, earth strip up to 7.50m long complete in addition to item No. 1(a) to (e) of preamble (Notes) under sub heading earthing, specified in SSR Part II

Supply, laying, testing & commissioning in replacement of XLPE insulated, insulation screening with extruded semi conducting compound in combination with copper tape, cores laid up, PVC inner sheath, galvanized steel strip armoured and overall PVC sheathed electric power cables(heavy duty) with stranded aluminum conductor of cross sectional area 95 sqmm, 3 core, 11000 volts grade(Earthed) cable confirming to IS 7098 complete all as specified and directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m depth and getting in hard / dense soil for laying of cables/ for erection of poles/ for stay assembly etc complete all as specified and directed.

Supply and spread M-sand in trenches for cushioning of cable / in the yard of outdoor substations complete all as specified and directed. Note: Punned down thickness only shall be measured for the purpose of payment.

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

Removing surplus excavated material to a distance not exc 50m and depositing where directed at a level not exceeding 1.5m above the starting point complete all as specified and directed.

Supplying and laying in replacement of un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 300mm x 180mm x 40mm for cable protection in trenches complete all as specified and directed.

M&L for cutting of existing road / hard standing up to 15 cm depth for laying of pipe lines and making good the disturbed surfaces by providing PCC 1:2:4 type B-1 (using 20mm graded aggregate) after laying of pipes lines and returning filling of soil, complete all as specified and directed. Note:- Excavation and earth work below road / hard standing will be measured and paid under relevant items.

Supply and fix in replacement of 100mm dia bore tubes, 'light grade' galvanized, with all fitting and fixed complete to walls/ poles and ceiling or laid in trenches/ floors for cable protection complete all as specified and directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm complete all as specified and directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for outdoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete all as specified and directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 Sqmm to 95 Sqmm complete all as specified and as directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for indoor end termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 Sqmm to 185 Sqmm complete all as specified and as directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 50 sqmm to 95 Sqmm complete all as specified and directed.

M&L for Cable jointing kit for 11 KV (Earthed) grade cable for straight through termination heat shrink type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium conductor cable of size 120 sqmm to 185 Sqmm complete all as specified and as directed.

Supplying, Installing, Connecting and testing in replacement of 11 KV 200 Amps triple pole gang operated air break switch having 12 Nos post insulator with earthing switch rotating type for horizontal/ vertical operation mechanically operated 3 rows type mounted on insulator (including insulators) and steel frame with operating mechanism consisting of operating rod of 25mm bore medium grade GI pipe of suitable length to operated from ground level including locking arrangement with pad lock of godrej make with three Nos of keys including 11 KV swing out explusion fuses (drop out type) of 10 Amps complete all as specified and directed.

M&L for lighting arrestors non linear type with all fitting distribution class, discharge capacity 65 kilo Amps, current rating 5 KA suitable for 11000 volts complete connecting with ACSR jumpers from LA to air brake switch with PVC sleeves complete all as specified and directed.

Dismantling of insulators any type and any size complete all as specified and directed.

M&L for Pin type, porcelain, vitreous, white, brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 150mm height, 150mm dia for 11000 volts grade complete all as specified and directed.

Supply and fix in replacement of Disc type insulator, porcelain, vitreous 145mm high and 255mm dia ball and socket type, brown, single disc assembly for tension with tension clamps for conductors, working pressure 11000 volts complete all as specified and directed.

Dismantling of old unserviceable ACSR or ACC any type and any size from the poles complete all as specified and directed.

Supply and fix of ACSR conductor for HT/LT overhead line and proper stringing to required tension and sag including binding with new aluminium binding wire of suitable size complete all as specified and directed.

Dismantling of old unserviceable cross arms / MS Channels or angle sections etc any type and any size complete all as specified and directed.

Supply and fix of cross arms, bracing, supports, clamps and back plates fabricated from structural steel sections including nuts, bolts, washers, welding, bending cold or hot, drilling holes for bolts, in any shape or size as indicated or directed and inclusive of one primer coat, one under coat and one finishing coat of aluminium paint complete all as specified and directed.

M&L for pruning of tree branches up to 2.0 meter clearance all around HT/LT overhead lines and depositing where directed at a distance not less than 50m complete all as specified directed by Engineer-in-Charge. Note: The item will be measured in span length between poles. The approx span length is 50m.

Material and labour for Surface dressing not exc 15cm deep in hard demi soil and site clearance including cutting and removing of plants/bushes, leveling of surface area, throw wastage material out of fencing area/ compound wall up to 50m distance at sub station areas / pump House areas complete all as specified and directed.

M/S Kumar Contractors