REPAIR AND MAINT OF HT VCB, ISOLATOR, RELAYS, TRANSFORMERS, APFC PANELS AND HT CABLES AT MO (MB) GHATKOPAR, NAE SANTACRUZ AND INS HAMLA AND REPAIRS TO HT INSTALLATIONS INCL HT DISTR NETWORK AT NCHC POWAI UNDER GE (NW) BHANDUP

Amount

periodical and servicing through agency authorized by OEM of HT VCB, 11 KV, 400/630/800 Amps of make AREVA/ ABB / CG/Schneider/ Seimens installed at various locations including cleaning of all VCB contacts with CT's and replacement of minor parts such as Gaskets, washers, panel heater, indicator bulbs and carry out any other repairs required at site to make the VCB fully functional, complete all as specified and directed (i) Checking of Draw out mechanism/arrangement of VCB (ii)Inspection of isolating Contacts, and decarburizing the male /female contacts, jaws complete and replacement of worn out contacts if any. (iii) Checking of alignment with spout and setting of contact gaps. (iv) Replacement of worn out/defective minor spares parts, lubrication of moving parts of the truck by moly grease. (v) Checking/setting of master control relay, earth fault realy and overload realy. (vi) Also checking ON/OFF/TRIP indication and make it serviceable by necessary checking/repair/replacement of control wiring. Replacement of Push button for open and Close, micro switches, indication lamps. (vii) Decarburizing and re-insulation of complete busbar track system complete in all respect. (viii) Misc works deemed essential to make VCB in perfectly working order. Note : Major spare parts are to be paid sepratly under respective items here in after, however cost of minor spares shall be deemed to be included in item rate.

Overhauling and servicing through agency authorised by OEM of HT RMU SF6 11 KV, 400/630 Amps of make Schneider / ABB installed at various locations including SF6 Gas Leakage test and SF6 Gas Refilling , Oiling,Greasing,cleaning of all contacts with CT's and replacement of minor parts such as Gasket, washers, panel heater and indicator bulbs and any other repair Such as Service and Repair for Manual handle operation unit,as well as Motor Operated Spring Charge Control,Push button servicing for Breaker On/OFF etc,required at site to make the RMU fully functional, complete all as specified and directed

Filtration & Dehydration of transformer oil (at different locations) using ON-LINE filtration plant to achieve dielectric strength minimum 50 KV/ 4mm including testing of oil before and after dehydation, complete all as specified and directed.. Note: 1.Oil samples are to collected from top and bottom of oil tank and test results to be recorded for each sample before and after filteration.

Material for topping up to transformer oil conforming to IS 395-1983 (Make : 'Savita', 'Power Oil', APAR) having die electric strength minimum 50 KV at 4mm gap complete all as specified and directed. Notes : (a) New Transformer oil will be filled in the transformer only after filteration and dehydration of existing transformer oil of the transformer. (b) Transformer oil shall be supplied in sealed barrel with test result and test certificate.

Calibration of relays of HT VCB by secondary and primary injection, replacement of defective operating handles, checking of under voltage, over current relays and replacement of UNSV parts of master relays complete all as specified and directed.

Overhauling of step down outdoor/indoor transformer (Make:- WESTERN / INDIAN Transformer Ltd / Volts) 11/0.433 KV by disconnecting HT/LT terminals, decanning transformer oil, removing sludge, cleaning of HT /LT bushings to remove dust particles /dirt etc, cleaning the core and winding with compressed air including replacement of copper washers, rubber bushes of HT/LT bushings, replacement of cork sheet of 6 mm thick suitable for transformer top cover, terminal boxes, reassembling refilling the transformer oil after filteration and dehydration and toping up with new transformer oil, painting with two coats of synthetic enamel paint after preparation of painted surfaces of transformer and testing and recommissioning on load etc, complete for the transformers of following rating (Filteration and dehydration of transformer oil, supply only transformer oil for topping up, supply only of HT & LT bushings shall be measured and paid separately under respective items)

Transformer 750 KVA

Transformer 500 KVA

Transformer 250 KVA

Transformer 100 KVA

Transformer 400 KVA

Transformer 315 KVA

Transformer 200 KVA

Transformer 160 KVA

Overhauling/Servicing through OEM of step down indoor/outdoor transformer 11/0.433 KV Dry type by disconnecting HT/LT terminals, cleaning of HT/LT bushings to remove dust particles/dirt etc, cleaning the core and winding with compressed air and reassembling complete including replacement of copper washers, rubber bushes of HT/LT bushings, replacement of core sheet suitable for transformer top cover, terminal boxes, painting with two coats of synthetic enemal paint and testing and recomissioning on load etc, complete for the transformers of following rating:- supply only of HT & LT bushings shall measured and paid separately under respective items

Transformer 750 KVA

Transformer 500 KVA

Transformer 250 KVA

Transformer 150 KVA

Supply and fix in repair HT bushing suitable for the following capacity transformer of make Western/Indian transformer Ltd/Voltas etc. complete all as specified and directed :-

Transformer 750 KVA

Transformer 500 KVA

Transformer 250 KVA

Transformer 400 KVA

Transformer 315 KVA

Transformer 160 KVA

Supply and fix in repair LT bushing suitable for the following capacity transformer of make Western/Indian transformer Ltd/Voltas etc. complete all as specified and directed :-

Transformer 750 KVA

Transformer 500 KVA

Transformer 250 KVA

Transformer 400 KVA

Transformer 315 KVA

Transformer 160 KVA

Supply and fix in repairs silica gel breather for 11/0.433 KV transformer upto 750 KVA capacity with silica jel etc. complete all as specified and directed.

Repairs and overhauling of Air Circuit Breaker (ACB) 3/4 pole, 415 Volt, upto 1200 Amp with thermal magnetic release by replacement of worn out parts and cleaning the complete ACB and testing the same after repair for smooth functioning etc complete all as specified and directed.

S&F in repairs Power factor improvement capacitor ultra heavy duty APP (5 to 25 kVAr bank ) for 3 phase 440V 50 Hz system suitable to existing load of make:- Havells/Asian/EPCOS/L&T/C&S/HPL

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 50 Sqmm to 95 Sqmm with connecting single thimbles etc complete all as specified and directed

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for indoor termination heat shrinkable type joint complete with jointing material and accessories suitable for 3 core XLPE armoured aluminium cable of size 120 Sqmm to 185 Sqmm with connecting single thimbles etc complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium cable of size 50 Sqmm to 95 sqmm including connecting single thimbles etc complete all as specified and directed.

Supply and fix cable jointing kit for 11 KV (earthed) grade cable for outdoor straight through heat shrink type joint complete with jointing material and accessories suitable for 3 Core XLPE armoured aluminium cable of size 120 Sqmm to 185 sqmm including connecting single thimbles etc complete all as specified and directed.

Taking out existing unserviceable HT XLPE cable of size 3 core x 120 Sqmm (including joints where exists) and in lieu supply, laying in trenches/along wall/ pole/ in pipe etc, connecting and testing new HT under ground cable of size 3 Core 120 Sqmm, XLPE insulated, screened, earthed, PVC sheathed, galvanised steel strip armoured (heavy duty), 11000 Volts grade with stranded aluminium conductor etc complete all as specified and directed. (Note: Excavation & earthwork, cable covers, protection pipes and sand cushioning shall be measured and paid separately).

Material and labour for filling fine, river sand for sand cushioning in trenches for cable protection all as specified and directed. (Note : Punned thickness will be measured and paid).

Material and labour for un-reinfoced pre-cast concrete cable cover class HV type-1, flat of size 300mm x 180mm x 40mm etc complete all as specified and directed

Material and labour for in replacement of Danger notice plate of 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, 25x20cm size complete all as spcified and directed.

Excavation in trenches not exc 1.5m wide and not exc 1.5m depth in soft/loose soil for foundation or laying of cable and getting out etc complete all as specified and directed.

Returning filling, including spreading leveling, watering and well ramming in layers not exc 25cm thick etc complete all as specified and directed

Removal of excavated material (soil) n. exc 50 mtr and depositing where directed etc complete all as specified and directed.

Supply & fix in repair cylindrical type PT fuse, 2A/3Amps, complete all as specified and directed, Make:- Bussmann/MEI/Eswari.

Supply and fix in repair PT 11KV/110V AC, 50 Hz specification 100VA, CL-0.5/3P epoxy resin casting type with 2A/3A PT fuses barrel type -3 Nos fixed indoor type etc complete all as specified and directed.

Supplying and laying synthetic Rubber insulated mats 25 mm thick for voltage upto 11 kv for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m complete all as specified and directed.

M & L for servicing of battery bank of relay panel complete opening, cleaning and checking all circuits for its serviceability and replacing consumable spares, complete all as specified and directed.

Supply and fix in repair Power Pack Equipment suitable for working on 230V and with output voltage of 110V and having 300 VA capacity, complete all as specified and directed. Make:- Gogate Electro System (N) Pvt Ltd or equivalent as approved by GE.

Material and labour for preparation of existing painted steel surface of HT/LT panel by scraping and cleaning the surface and apply two coats of synthetic enamel paint by spray painting to achieve glossy finish in approved colour/shades including writing number and location of feeders with black paint etc complete all as specified and directed.

M & L in repair Earthing with galvanized steel earth plate electrode 600 x 600 x 6mm thick buried directly in ground (earth pit not less than 2.25 m deep below ground level) with top edge of the plate not less than 1.5 m below normal ground level, connected to galvanised earth lead strip of size 25 x 4 mm by mean of bolts, nuts, check nuts and washers of galvanised iron steel including necessary excavation, earth work, earth pit of PCC 1:2:4 type B-1 (using 20mm graded stone aggregate) with RCC 1:2:4, 50mm thick cover reinfoced with XLPM etc all as shown in electrical plate No. 5 of SSR 2009 Part I and connected to earthing test point all as specified including, funnel with GI watering pipe of 20mm bore medium grade & GI protection pipe 40mm bore light grade including testing etc complete all as specified and directed.

Supply and fixing in replace of fire Extinguisher Co2 type 2 kg capacity to fixed on wall including fixing bracket complete all as specified and directed.

Supply and fixing in replace of fire extinguisher Co2 type 4.5/5 kg capacity to fixed on wall including fixing bracket complete all as specified and directed.

S&F fire in replace ball extinguisher ABC dry powder type, 1.3 kg for electrical installation complete all as specified and directed.

Supply and fixing in repair heating strip and supply and install fin strip terminals parallel, 400 watt 8" long mounted on insulators suitable for 11 KV HT panel for de-humudifying moisture with proper connection from separate source to existing panel and testing complete all as specified and directed.

Supply and fixing in repair LED type RYB indicator set complete all as specified and directed

M& L for pressure test suitable for 11 KV HT panel, VCBs, CT/PT bus bar complete and applying two coats of insulation spray complete and submit report in writing all as specified and directed

Supply and fixing complete vacuum interrupter bottle (VG-2)-03 Nos and insulating enclauser triple pole-01 no suitable for HT 11 KV existing VCB , 800 Amp trolly mounted. The vacuum bottles should be capable of withstanding minimum 100 full short circuit operations as per test duty 1 to 5 of IEC-56. The vacuum bottles manufacture’s test reports / literature for vacuum bottles, supplied in duplicate complete all as specified of existing type and as directed.

Supply and fixing insulating enclosure triple pole-01 no suitable for HT 11 KV existing VCB , 800 Amp complete all as specified of existing type as directed.

Supply and fixing in replacement of 11KV three phase CT cast resin made indoor type for metering and protection purpose of CT having rated current ratio 100/65/5 or 50/5A for dual configure purpose with 15 VA secondary burden rating etc and confirming to IS-2705 with accuracy class 0.5 complete all as specified and directed.

M&L for finding faults of HT UG cable XLPE, 11KV of any size and any length upto 240 Sqmm by using computerized / primary current injection method / any other method as directed by the GE and locating fault, cutting and removing the faulty portion of the cable and jointing with suitable cable joint and testing after jointing all as required and directed. Note: Joints shall be paid for separately.

Supply and fix in repair battery charger 40 volt DC/25 Amp suitable for working on 230V and with output voltage of 40V DC and having 25 A capacity, 50 Hz single phase working on air natural cooling complete all as specified and directed. Make:- Power Guard Systems or equivalent as approved by GE.

Supply and Fixing 3 Phase Shunt reactor of 5 KVAR with existing shunt capacitors of APFC Panel for PF improvement & reduce harmonic distortion complete all as specified and directed.

M&L for Plates chequared of Fe 410 W Gde E-250 quality A channels, square cut or notched (ordinary and counter sunk) forming holes, without any attachment complete all as specified and directed

Supply & replace existing out dated First Aid kit complete all as specified and directed

Material and labour for fixing standard shock treatment chart in English & Hindi duly framed and covered with glass complete all as specified and as directed by Engr-In-Charge.

Supply and fixing in repairs 11 KV single phase current transformer (CT's) Epoxy cast or Resin cast, VA burden - 15VA, class of accuracy – 1.0/5P-10 / PS, Type of CT as per existing with CTR 40-20/5A/5A or 100-50/5A/5A or 60/5A complete all as specified and as directed by Engr-In-Charge.

M & L for HT Breaker 11 KV, 630 Amps, VCB spout and box spout suitable tulip contactor jaws complete

M &L for 11 KV VCB Copper bus bar 630 Amps for HT breaker 11 KV including HT 11 KV insulation sleeves.

M &L Epoxy cast post insulators for 11 KV HT breaker of same size of existing breaker.

S&F in repairs panel mounted digital type, PF meter, flush mounted, single phase, class 0.01 accuracy, 96mm x 96mm, including modiication of panel for fixing of PF meter, complete all as specified and directed. Make: AE, L&T, C&S

Taking out existing unserviceable HT XLPE cable of size 3 core x 95 Sqmm (including joints where exists) and in lieu supply, laying in trenches/along wall/ pole/ in pipe etc, connecting and testing new HT under ground cable of size 3 Core 95 Sqmm, XLPE insulated, screened, eartherd, PVC sheathed, galvanised steel strip armoured (heavy duty), 11000 Volts grade with stranded aluminium conductor etc complete all as specified and directed. (Note: Excavation & earthwork, cable covers, protection pipes and sand cushioning shall be measured and paid seperately).

Supply and fix in repair battery charger 40 volt DC/25 Amp suitable for working on 230V and with output voltage of 40V DC and having 25 A capacity, 50 Hz single phase working on air natural cooling complete all as specified and directed. Make:- Power Guard Systems or equivalent as approved by GE.

S&F Microprocessor controlled numeric relay, three phase overcurrent and earth fault auxillary voltage of 18-52 V DC, current setting from 0.1 to 25 IN with LED display for trip, alarm warning & auxillary output and back lit, LCD display of parameter with programmable key board settings type CGI14N/C of make : Crompton Greaves or equivalent all as specified and directed.

M&L for 1000 watt bulb with ceramic holder for absorb the moisture from outside all as required and directed.

Supply installation, testing and commissioning of FAST ELECTRODE maintenance free Chemical Earthing of Dual Pipe Technology, each of 3 Meter long with Outer Pipe Diameter of 88mm (galvanised for 80-120 micron and wall thickness 1.80mm) and Inner Pipe diameter 48mm (galvanised for 80-120 micron and wall thickness 2.60mm). There shall be terminal of size 75 x 5.20mm for connection with two holes of 14mm diameter. FAST ELECTRODE shall be duly filled with the highly conductive, Non Magnetic, Non Corrosive material and duly sealed at both ends with lead terminal of 75x5.2mm at top. The ELECTRODE shall be of 'make' having approval of CPRI (Central Power Research Institute), Govt of India for a minimum short circuit current of 42 KArms for 1 Second with initial pick of 88.2 KA. The FAST ELECTRODE Earth Enhancing Compound (minimum 25Kg) shall be pored on alround the electrode. The chemical compound to be used shall be as per the manufacturer's instructions of 'Electrode' and as also certified by any BIB (Bureau of Indian Standards) accredited laboratory. Make : Fast Electrode or equivalent as approved by the GE. Notes:- (i) The contractor shall procure the above materials either directly from the manufacturer(s) or their authorised dealers only and shall produce the original purchase vouchers alongwith original manufacturer's test certificates and other authenticated documents in compliance of the provisions as mentioned in the above item. Also all the requisite testing as specified above, in relevant IS and as directed by the GE shall be got done by the contractor. Cost of all the above elements shall be deemed to be included in the contractor's quoted rates. (ii) Any additional quantity of Earth Enhancing Compound in case required to obtain the desired results, the same also be provided by the contractor without any additional cost to the Govt. and quoted rates of above item shall be deemed to include the above element also. (iii) Copper strip upto 7.5 meters included above quoted rates.

Servicing of APFC Panel cubical, floor moulded, indoor type Panel, 440 Volts AC 50Hz 3 phase made out of CRCA sheet of thickness 2.0 mm and 1.6mm for partition IP-42 protection with aluminium bus bars of cross section 40 x 10 mm, MPP-H capacitor including MCCB 400 A, 35 KA (incoming), HRC fuses, Tyrister switches,microprocessor based APFC relay, Volt meter, Ammeter, CTs, phase indicating lamps and powder coated seimens grey painting etc complete.

Supply and fix in repairs Power Capacitors of Rating 25 KVAR 415 Volt Naturally air cooled Double dielectric heavy duty, MPP type 440 Volt 50 HZ Watt Less Power Capacitors wattage not more than 0.5 Watt per KVAR with meter system conforming to IS 13340 and 13341 ISI Marked complete all as specified and directed.

All as per item No 64.00 above but Power Capacitors of Rating 10 KVAR 415 Volt complete all as specified and directed.

All as per item No 64.00 above but Power Capacitors of Rating 5 KVAR 415 Volt complete all as specified and directed.

All as per item No 64.00 above but Power Capacitors of Rating 2 KVAR 415 Volt complete all as specified and directed.

Supply only Aluminum lugs for cable 120 to 300 sqmm, 3.5 core complete all as specified and directed.

Supply only Aluminum lugs for cable 25 to 95 sqmm, 3.5 core complete all as specified and directed.

Supply only Copper lugs for cable 16 to 95 sqmm, 3.5 core complete all as specified and directed.

Supply only Aluminum glands for cable 120 to 300 sqmm, 3.5 core complete all as specified and directed.

Spply only Aluminum glands for cable 16 to 95 sqmm, 3.5 core complete all as specified and directed.

Supply and fix flexible copper cable size of 16 sqmm single core for connection MCCB to busbar complete all as specified and directed.

Supply and fix flexible copper cable size of 25 sqmm single core for connection MCCB to busbar complete all as specified and directed.

Supplying and laying synthetic Rubber insulated mats minimum 10mm thick for voltage upto11 KV for electrical purpose as per IS 15652-2006, (superseding IS 5424) suitable for electrical shock safety of sizes 2m x 1m etc complete all as specified and directed.

Supply only fire Ball extingushier ABC Dry powder type, 1.3 Kg, for electrical installation complete all as specifed and directed.

Supply,testing and installation of Air Circuit Breker (ACB) ACB 4 Pole, 415 V, Manual Drawout type with microprocessor release of capacity 630 Amps complete all as specifed and directed. Make: Legrand/Scheinder or equivalent.

Supply only following spare parts suitable for 30 VDC/ 110VAC to be incorporated under item No 02 above : (a) Replacement of spring charge motor single phase 110/220 volts

S & F in repairs Closing Coil Or Tripping Coil 30V DC For VCB Item No 1.00

Supply and fixing complete vacuum interupter bottle (VG-2)-03 Nos suitable for HT 11 KV existing VCB , 800 Amp trolly mounted. The vacuum bottles should be capable of withstanding minimum 100 full short circuit operations as per test duty 1 to 5 of IEC-56. The vacuum bottles manufacture’s test reports / literature for vacuum bottles, supplied in duplicate complete all as specified of existing type - HVX-X, make: ABB

Supply only Permanent Magnet DC(PMDC) Spring charge motor Assembly 24V DC operated, Suitable for Existing 11KV ABB Make VCB Complete all as specified and directed

Supply only Copper Bushing Spout with Epoxy Resin coated suitable for 11KV VCB, 800Amps Rated HT panel Suitable for ABB Make VCB Complete all as specified and directed.

Supply and fixing Jaw/Tulip Contacts suitable for 11KV VCB, 800Amps Rated HT panel Suitable for ABB Make VCB Complete all as specified and directed.

Material and labour for preparation of existing painted steel surface of HT panel by scraping and cleaning the surface and apply two coats of Aluzinc coating againest anti slat rust proof, anti Rust by spray painting to achieve glossy finish in approved colour/shades including writing number and location of feeders with black paint etc complete all as specified and directed.

Supply Install Testing and Commissioning of Digital Microprocessor Based Numerical Self Powered Over current+ Earth fault relay of Make : Ashida Model ADR 141S including necessary Control wiring Connections and Setting of relay parameters complete all as specified and Directed.

Supply and fix in replacement of 11 KV, 3 phase CT(Current Transformer set of 3 Single phase) cast resin made indoor type for metering and protection purpose of CT having rated current ratio 100/65/5 A for dual configure purpose with 15 VA secondary burden rating etc and conforming to IS - 2705 with accuracy class 0.5 complete all as specified and directed.

Supply and fix in replacement of 11 KV, 3 phase PT(Potential Transformer) RYB(Set of 3 Single phase) cast resin made indoor type for metering and protection purpose of PT having rated Voltage ratio 11kv/110v with 2A/3A PT Fuses for dual configure purpose with 50 VA secondary burden rating etc and conforming to IS - 3156 with accuracy class 0.5 complete all as specified and directed.

Supply, laying, in trenches connecting and testing in replacement of unserviceable or additional HT under ground cable of size 3 Core 150 Sqmm XLPE insulated, screened, eartherd, PVC sheathed, galvanised steel strip armoured (heavy duty) 11000 Volts grade with stranded aluminium conductor etc complete all as specified and directed. (Note: Excavation & earthwork, PCC cable cover and sand cushioning shall be measured and paid seperately).

Supply and fix in repair Power Pack Equipment suitable for working on 230V and with output voltage of 110V and having 300 VA capacity, complete all as specified and directed. Make:- Gogate Electro System (N) Pvt Ltd or equivalent as approved by GE.

Supply and fixing in repair Heating strip suitable for 11 KV HT Panel for de-humidifying moisture with proper connection from separate source to existing panel and testing complete all as specified and directed.

S&F in repair LED Type RYB indicator set complete all as specified and directed.

M & L for servicing of Electrical power pack with battery back up of relay panel complete opening, cleaning and checking all circuites for its serviceablity and replacing consumable spares, complete all as specified and directed.

Radha Engineering Services

Shree Ayyappa Engineering