REPAIR/REPLACEMENT OF UNSV 33KV/11KV MRS, 11KV HT INSTALLATIONS, 11KV OH LINES AND UG CABLES, HT VCBS/SF6S BREAKERS, MAINTENANCE OF POWER/ DISTRIBUTION TRANSFORMERS, LT/HT SWITCHGEAR, PANELS AND ITS CONNECTED ACCESSORIES AT DLRL KANCHANBAGH HYDERABAD

Amount

Testing and setting the relays of incoming VCB's/SF6s of 33 KV by primary injection method of any make/model mechanical parts, cleaning inside & outside with CRC-26 spray including replacing the unserviceable minor parts like springs, gear, nuts, bolts and washers, internal wiring if necessary and lubricating all the complete to the entire specification of Engr-in-charge.

Testing and setting the relays of incoming VCB's/SF6s of 11KV by primary injection method of any make/model mechanical parts, cleaning inside & outside with CRC-26 spray including replacing the unserviceable minor parts like springs, gear, nuts, bolts and washers, internal wiring if necessary and lubricating all the complete to the entire specification of Engr-in-charge.

Disconnecting and removing the unserviceable 33 KV burnt out six bolt clamps and supply and fixing new six bolt type Aluminium clamps suitable for panther aluminium jumpers / pipes including nuts, bolts, washers and testing complete all as specified and directed.

Dehydration and filtration of 2.5 MVA transformer oil 33/11 KVA and indoor/outdoor/ isolation type at different location and different size of transformer from 63 KVA to 1000 KVA or any capacity transformer at DLRL location with centrifuging machine, manually operated and achieve BDV 60 KV including carrying out oil testing before and after the dehydration process for each transfarmer complete all as directed. Note : Required oil for top up will be measured and paid separately under relevant item of schedule

Supply only topping up of Transformer oil as per IS :335, break down voltage not less than 60 KV in replacement all as specified and directed. Make :- Power Oil/Electrol

Supplying, installation, commissioning and testing in replacement of 33 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 40/5-5 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring including dismantling CT complete all as specified and directed.

Testing & setting 11 KV current transformer by primery injuction method complete all as specified and directed.

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), indoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 150-75/5-5-1A Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring including dismantling CT complete all as specified and directed

S&F in repairs copper bus bar 10 x 70mm with HT Tape as Per Required Design & Dimensions with NUT BOLTS SET including fixing charges all as directed.

Supply, laying, testing and commissioning in trenches/ ducts, fixed on walls/panels of LTUG cable, 1100 volts grade, PVC insulated, PVC unsheathed armoured with aluminum conductor cable complete including lugs of requied sizes for the following nominal cross sectional areas of cables including taking down old unserviceable cable complete all as directed:- Make: HAVELL'S/UNIVERSAL/CCI/GLOSTER/KEI/POLYCAB/ KEC INTERNATIONAL (RPG)

4 core x 10 Sqmm

4 core x 16 Sqmm

4 core x 25 Sqmm

4 core x 35 Sqmm

3.5 core x 50 Sqmm

3.5 core x 70Sqmm

3.5 core x 95 Sqmm

3.5 core x 120 Sqmm

M&L for Servicing & Repairs to Air-break switch (isolator) off load, rotating type, 33 KV, 800 Amps to 1250 Amps capacity, with proper alignment of isolator rotating blades, with fixed contact jaws, arcing horns, applying petroleum jelly to moving mechanism, cleaning and lubricating to isolator gear box assembly, tightening all nuts, bolts and clamps of jumpers etc, repairing to isolator gear box assembly and making in proper serviceable condition for smooth functioning, testing and commissioning on load complete all as specified and directed.

S&F in replacement of LED indication lamp for breaker ON/OFF/TRIP/Breaker Spring Charged/R-Y-B etc for 11/33 KV (110V/30V DC supply) control panel including associated wiring, if reqd, complete all as specified and directed.

Supply, Lay in repairs cable 1100 volts with PVC insulated and steel armoured with multi stranded copper conductor of the sizes 16 core 2.5 Sq mm.

M & L for cutting and removing grass, vegetation bushes etc from surrounding HT installation as bushes grows during a period of contract and removing all rubbish to a distance not exceeding 50 m as directed.

M&L for Repairs/maintenance of 11KV HT VCB/SF6 breakers Panel including bus coupler of any type, size and capacity complete including the following :- Taking out 11KV HT VCB/SF6 breakers of 400/630/800 Amps rating trolley from HT Panel after switching off electric supply, checking of mechanical/motorised system for proper functioning of upward/downward movement of HT VCB trolley including opening the VCB & checking the quality of insulating. Cleaning & servicing the fixed/moving contact & blowing out dust from bus bar chamber, spout gear mechanism and applying the proper lubrication/greasing and cleaning/servicing the entire motorised mechanism of VCB including all spare parts required at site, reassembling the VCB connection, testing, commissioning and putting on load to the entire satisfaction of Engr-in-charge.

Earthing complete with copper plate electrode 60x 60cm x 3mm thick buried directly in ground vertically to a depth not less than 2.25 mtr deep below normal ground level with top edge of earth plate, not less than 1.5 mtr below normal ground level connected to copper strip earth lead of size 20 x 3 mm by means of bolts, nuts/check nuts and washers etc of galvanised iron, protected by galvanised iron pipe light grade 40mm dia and connected to main switch/control board including necessary excavation earth work in any type of soil and PCC 1:3:6 type C1 for earth chamber, 40 mm thick RCC cover slab 1:2:4 type B1 with 6 mm dia TMT Bars at 140mm cc both ways, watering pipe 20 mm dia light grade GI, funnel, wire mesh, lugs, charcoal and salt etc complete all as shown in Electrical plate No. 3 SSR Part I and testing complete including removing unserviceable any type of items all as specified and directed. Note : Copper strip and GI pipe 40mm dia beyond 7.5 metres per earth will be measured and paid separately.

Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated location for loop earthing etc. as required of size 25x6mm GI strip complete all as specified and directed.

Supply & Fix Gasket inreplacement for upto 2.5 MVA transformer (SRC RC 70C Grade) with including all required T&P for drain out and refilling trainsformer oil after proper filteration,comminissioning and testing complete complete all as directed.

All as per item No.18 Gasket replacement upto 800 KVA transformer (SRC RC 70C Grade)

Supply installing testing and commissioning in replacement the relay module Micom P111 making necessary cutting in the existing panel and necessary control wiring FRLS of size not less than 2.5Sqmm and providing Ferules for identification and necessary spares for fixing complete to the entire satisfaction of the Engr-in-Charge.

Testing and re-setting and calibration of protection relay of 11 KV RMU/VCBs/SF6 breaker (indoor/outdoor) for incoming and out going feeders with control panel and control cable differential relay once in a month through authorised service engineer, Checking of instruments function and taking corrective action for improvement if found improper, functioning complete all as specified and directed.

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

M&L for XLPE Cable jointing kit for 11 KV (Earthed) grade cable for straight through 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 including taking down old unserviceable jointing kit complete all as directed.

M&L for XLPE cable jointing kit for 11 KV (earthed) for outdoor termination heat shrink type joint complete with jointing material & accessories suitable for 240 to 300 sqmm, 3 core armoured aluminium conduct including taking down old unserviceable jointing kit complete all as directed.

M&L for XLPE cable jointing kit for 11 KV (earthed) for indoor termination heat shrink type joint complete with jointing material & accessories suitable for 120 to 185 sqmm, 3 core armoured aluminium conduct including taking down old unserviceable jointing kit complete all as directed.

M&L for XLPE cable jointing kit for 11 KV (earthed) for indoor termination heat shrink type joint complete with jointing material & accessories suitable for 50 to 95 sqmm, 3 core armoured aluminium conduct including taking down old unserviceable jointing kit complete all as directed.

Supply, fix, testing and commissioning of Air break gang operated switch, triple pole mechanically operated out door type with all fittings/accessories mounted on and including 11 KV HT polymeric insulators and steel channel frame, GI operating rod 25 mm dia of suitable length with operating mechanism worked from ground level vertically operated including locking arrangement for operating handle with and including 7 levers Navtal lock complete suitable for current rating of 400 Amps HT 11 KV working pressure including dismantling all as specified and directed.

Supplying and laying un-reinforced precast concrete cable cover, class HVP, type 1 with peak, size 250mm x 150mm x 40mm complete all as directed.

Supply and fix 20mm coarse aggregate in various sub stations and other locations including removing damaged/powdered aggregate complete all as directed.

Supply and fix 40mm coarse aggregate in various sub stations and other locations including removing damaged/powdered aggregate complete all as directed.

Isolate,disconnect,dismantle the burnt out lugs from main switches/MCCB and crimping with new lugs as per existing one including fixing, insulation, termination to main switch/MCCB for the following sizes of cables complete all as directed .

35 sqmm to 50 sqmm

70 sqmm to 95 sqmm

120 sqmm to 240 sqmm

240 sqmm to 300 sqmm

M&L for Preparation of old painted inner/outer surfaces of indoor/out door HT/LT panels, spray painting the same with two coat of synthetic enamel paint (RAL 7032) simens grey to achive smooth finish including writing of SM/MES No with black paint complete all as directed.

Supply and fix in repairs of Alarm annunciator 12 window of model MBAS-0600 suitable for 33/11KV HT breaker complete all specified and directed.

S&F in repairs cable jointing kit for straight through joint (epoxy) for 1.1 KV grade XLPE, PVC insulated and sheathed aluminium conductor under ground cable including thimbles, nuts & bolts, washers etc and testing after jointing complete, all as directed for the following sizes. Make: M-seal/Raychem/Transeal/Denson

6 sqmm to 16 sqmm 4 core

25 sqmm to 50 sqmm 3.5 core

70 sqmm to 120 sqmm 3.5 core

Material and labour painting of HT two pole structure 11 KV complete by scrapping the existing old paint and making the surfaces smooth including cross arms bracings complete and applying two coats of synthetic aluminium paint complete all as specified and directed.

All as per Item No: 35 above but four/Six pole structure

All as per item No.35 above but 33/11 KV Incoming brekers,incoming structur yard and GOD's operated devices for whole structure.

Labour for cutting the bushes and plants grown near the substation/ structures premises using necessary tools and plants and removing the plants from the root level at any depth and cleaning the premises completely and making good the site suitable for spreading the stone aggregate including disposing all the waste to a distance not exc 50M form the site all as directed by the Engr-in-Charge.

S&F in repairs Pin type, porcelain, vitreous, white,brown or green insulator including one galvanised mild steel spindle, two galvanised iron washers and one galvanised iron nut, 50mm height, 65/100mm dia for 550 volts grade complete all as directed.

M&L in replacement of Shackle Type insulator 1100V 100mm hight 115 mm dia same as per existing complete all as specified and as directed.

Cutting of trees and tree branches of girth up to 20cm and to a radius of 3M all around LT/HT OH line complete all as directed. Note: The distance between two adjacent poles will be considered as one span.

M&L 11KV grade pin type, composite polymeric insulator of clevis/Tounge/ socket or ball type spindle including nuts and bolts of size type as specified by the manufacturer conforming IS- 61109 including all galvanised steel disc fittings as required at site and removing of unserviceable insulators complete all as specified and directed. Make :- Jaipuria/Rashtriya Electrical/Denson or make approved in the state Electricity board

M&L 11KV grade suspenction type, composite polymeric insulator of clevis/Tounge /socket or ball type spindle including nuts and bolts of size type as specified by the manufacturer conforming IS- 61109 including all galvanised steel disc fittings as required at site and removing of unserviceable insulators complete all as specified and directed. Make :- Jaipuria/Rashtriya Electrical/Denson or make approved in the state Electricity board

M&L in replacement horn gap fuse assembly mounted on porcelan insulator and steel frame, D or Channel type for HT 11 KV, 400Amps rated current including base frame made with 'C' channel cross arms of suitable size shall be robust enough to sustain the various stresses encountered during all operational conditions of the cutout and necessary reconnecting all the wires/cables etc including removing the unserviceable drop out fuse assembly complete all as specified. Note: Fuse assembly for three phases will be considered as one Set.

M&L in replacement of Lightning arrester expulsion type complete with all fittings, transmission class, discharge capacity 65 kilo Amp connecting to the earth strip including necessary fixing spares as required at site all as specified and directed. Note: A set of three lightening arresters will be considered as one set suitable for 11000 voltas.

Repairs to AB switch (GOD) including replacement of male and female contacts, bolts & nuts and cleaning the carbon/ dust deposited on the switch contact surfaces and applying mineral jelly, oil grease to the moving/rotating parts etc after cleaning, removing carbon deposits including testing and commissioning the same for operation complete all as directed by Engr-in-charge. Note: The repairs to three poles of AB switch will be measured as on job.

Material and labour for locating UG cable fault through high voltage UG cable testing van through TSSPDCL or any authorised service provider in HT cables of any size or distance complete all as specified and directed to the entire satisfaction of Engr-in-Charge.

Material and labour for tracing the cable route using ultra sonic cable route locator of any HT/LT UG cables complete all as specified and directed.

S&F in repairs 11 KV top or bottom bushing with internal bus bar supporting insulator complete all as directed.

Supply and fix in repair of Impluse Emergency First aid kit box with basic medicine like Band Aid strips of min 20 Nos, Anteseptic cream, Cotton, Surgical tape 1 inch, non sterial gauge swabs, Hydrogen peroxide bottle, medical spirit bottle complete all as specified and directed.

Disconnectiong and taking down the unserviceable gang operationed device unit of 33 KV complete from the structure for repairing including replacement Male contacts/movingg contact blads (set of 3) Female contacts/fixed contacts (set of 3) Tinned copper flexible jumpers and applying mineral jelly oil grease after proper removal of carbon deposit and refixing of switch AB gang operated triple pole mechanically operated mounted on isolator and steel frame with operating mechanism worked from ground level from current rating upto 800 A,33 KV grade horizontal/vertical type complete all as directed all as directed by Engineering-in- charge.

Supply and fix in repairs pad 4 hole/6 hole clamps,pipe clamps suitable size for 33KV jumper in structure.

Material and Labour for cutting existing BT road/PCC of size 45cm x 60cm for taking out/laying of underground cable and including necessary earth work and refilling the same in layers well ramming including watering as required and matching with the existing surface with 200mm thick PCC 1:2:4 type B1 and curing the same with wet gunny bags and removing debris to a distance not less than 50m complete all as specified and directed.

Supply and lay GI tubing 100mm dia, light grade for cable protection at road crossing/on poles and tubing sealed at bith ends after laying the cables including taking out old GI tubing complete all as directed.

All as per iem No. 54 here-in-before but 80mm dia Make for item Nos.54 & 55: ZENITH/ TATA/ JINDAL/SWASTIC

S&F in repairs MCCB 200 Amps, 4 pole 50 HZ, complete all as directed.

S&F in repairs MCCB 100 Amps, 4 pole 50 HZ, complete all as directed.

S&F in repairs MCCB 125 Amps, 4 pole 50 HZ, complete all as directed.

S&F in repairs MCCB 400 Amps, FP, 50HZ, 35/36KA complete all as directed.

S&F in replacment MCCB enclosure of suitable size for MCCBs 4P upto 250Amps capacityof existing size complete all as directed.

S&F in replacment MCCB enclosure of suitable size for MCCBs 4P 400/630Amps capacityof existing size complete all as directed.

Disconnection of all Primary/Secondary connection of the defective transformer of any KV rating, out door / indoor any make taking down / out from plinth / pole / platform with the help of crane and transporting the same carefully to workshop for repair and bringing back and install, with all connections as per directions, after repair to its existing position, upto 2.5MVA capacity of transformer complete with testing and commissioning, complete all as directed.

Opening of the 11 KV / 0.433 KV transformer 800 KVA to 1000 KVA by removing the inspection cover / top cover, decanning of the transformer oil up to the required level for replacement of leaked cork seal with insulator or LT/HT bush (which is unsv) complete from the shell and making again connections of LT/HT bush to avoid leakage of oil refilling back to existing oil into the transformer testing & commissioning complete all as directed Note : HT/LT bush will measured and paid separately under relevant item and cork seal with insulator is deemed to be included in quoted rate.

M&L for opening the top of Transformer upto 2.5 KVA for renewal of jumpering (with brazing or welding) with new copper wire of existing size after removal of burnt out internal copper links from winding top to studs including decanning of oil upto required level and testing the tranformer complete all as directed.

Making Primery/Secondary coil with insulating copper wire of required gauge craft paper cotton tape HT/LT insulation as per specification of old transformer including making of coil as required of any capacity of transformer of any voltage and range complete all as directed .

Supply and fixing in repairs of HT bushing including metal parts and washer complete for any make of plinth/pole mounted transforme1000 KVA to 2.5 KVA capacity complete all as directed.

Supply and fixing in repairs of LT rod / studs for Up to 2.5 KVA capacity KVA transformer made of brass with nuts and washers, Insulator and fittings etc as per size and shape of original complete all as directed.

Supply and fixing in repairs of HT bushing including metal parts and washer with complete set for any make of plinth/pole mounted transformer up to 630KVA capacity complete all as directed.

Reconditioning of over heated 33/11 KV coil of transformer from to 1000 to 2.5 MVA after removing all old insulation any type and re-insulation as required and remaking of coils complete all as directed .

M&L in replacement of analog type Winding temperature indicator, 50-60 HZ, 110-220 V IP 48 temperature 0-160 degree mild steel body and indicator for oil/ temperature for any type/size /capacity transformer all as specified and directed.

M&L in replacement of analog type Oil tempreture indicator, 50-60 HZ,110-220 V IP 48 temperature 0-160 degree mild steel body and indicator for oil/ temperatureor any type/size /capacity transformer all as specified and directed.

M&L in replacement of Mog Magnetic oil level indicator,of aluminium body, industrial use of size 1500mm, temprture indication upto 30 DC , works on max pressure4Kg/sqcm accuracy 95% complete for any type/size /capacity transformer all as specified and directed.

M&L in replacement of buchholz relay/gas operative relay of existing size and shape all as specified and directed

M&L Earthing complete with galvanised steel earth plate electrode 600x600x6mm thick, buried directly and preferably vertically 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 level, connected to galvanised iron strip of 25x4mm (upto 7.5 M in length from earth plate) by means of bolts, nuts, check nuts and washers of galvanised iron or steel all as shown in electrical plate No 5, connected to earthing test point all as specified including earth work and excavation in any type of soil, PCC 1:3:6 type C1 chamber and RCC 1:2:4 type B1 cover 40 mm thick, with 8 mm dia steel deformed (TMT bars) reinforcement at 150mm c/c both ways, 40 mm dia GI light grade pipe for earth lead protection, 20 mm dia GI light grade pipe for watering , water funnel, testing point etc., complete all as specified and testing on completion.

M&L for common salt to fil in existing earthing pit to recharge the pit all as specified and directed.

S&F in repairs 2 core round flexi copper wire of 1sqmm dia for AC/DC supply connections to VCBs/SF6 with suitable size glandsand insulated lugs of required qty complete all as directed.

Testing protection by secondary injection method and other relays such as IDMT, Over current earth fault relays, auxilary relays, such as VAJ 10C & VATH relays provided on 33 KV Breakers and servicing of relays complete all as directed.

Testing and calibration of protection Over current and Earth Fault relays numerical type P-111/123 complete all as directed.

Testing and calibration conducting stability test of transformer 33/11 Differential relay complete all as directed.

Supply, erect, Testing & Commissioning of numerical directional over current & earth fault relay model Micon P-642 complete control wiring with material programming /setting /calibration including software of relays required and necessary addition/alternation of panel alongwith dismantling of old unserviceable old type of relay. Make- Schneider or eqiuvalent in ABB/L&T/SEIMENS.

M&L for factory repairing reconditioning of by authorised service workshop 11 KV Sulphur Hexafluoride breaker defective pole assembly of type 63D, KEC make including Gas Charging (SF6) and testing and commissioning complete all as directed. Note:- Quated rates deemed to including ctransport material required envelope,FRP links Gas Rings,Membrane,Aluminium Silicate,Mesh box, Pressure switch& filling of Gas

S&F in repairs for SF6 pole assembly to the breaker after repair and testing of breaker and charging at site including packing complete all as specified and as directed, replaced asswmble shall be deposited in E/ M store Note:- Nature of work Assembly of poles Assembly replacment of pole AssemblyGas filling and testing.

M & L for Inspection and servicing of OLTC of transformer of capacity 1.5 MVA and checking the electrical/manual operation of tap changer mechanism, check the integrity of the active components /contact surface mating for all tap positions, voltage ratio test for all tap position etc including cleaning of the OLTC complete all as directed. Note : The Contrator shall be responsible for correct servicing of the OLTC and servicing to be done through OEM of OLTC.

Supply and fix in repairs wiring and commissioning including thormostate switch space heater 200w for VCB/SF6 breaker/RMU complete all as directed.

M&L for repairs servicing CT/PT wiring with required material all as directed.

Supply and fix in repairs 11 KV voltage transformer (Potional Transformer) Ratio1100/110Volts- V3 complete wiring testing and commissioning complete all as per directed.

Supply and fixing in repairs Kirloskar 11 KV safety shutters as per site requirement including painting and fixing of safty nuts and bolts complete all as directed.

S&F Tripping coils for sulphur hexafluoride (SF6) breakers operated on 30/110Volts DC including taking down old unserviceable coil complete all as directed.

Supply and installation of Spring Charging Motor for breaker including taking down of old Unserviceable spring charging motor complete all as directed.

Excavation in trenches not exceeding 1.5m wide and not exceeding 1.5m in depth and getting out in soft loose soil for foundation of poles, structures, stay rods, laying of underground cable etc complete all as directed.

Returning, filling in, including spreading, leveling, watering and well ramming in layers each not exceeding 25cm thick using soil complete all as directed.

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

Supply and spreading of natural, clean, dry, river sand in trenches for cable protection / transformer yard/ two pole structure yard complete all as directed. Note:- Punned thickness only shall be measured for payment purpose.

Supplying and laying synthetic Rubber insulated mats 3 mm thick for voltage upto 33 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.

All as per item No.95 but 2.5 mm thick for voltage upto 11 kv (size 2x1m).

M&L for opening the top of Transformer upto 1000 KVA for renewal of jumpering (with brazing or welding) with new copper wire of existing size after removal of burnt out jumpering including decanning of oil upto required level and testing the tranformer complete all as directed.

S&F in repairs Silica gel complete all as directed.

M&L for replacement of UNSV push button of existing size in breakers/panels complete all as directed.

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