REPAIR/MAINTENANCE OF 33/11KV MAIN RECEIVING STATION AND HT EQUIPMENT INSTALLED IN MRS AT DRDL UNDER GE (I) RND KANCHANBAGH, HYDERABAD

Amount

Disconnecting the transformer of 5000 kva capacity and any make, out door/indoor type from platform by opening HV/LV side connection, earth connections etc and shifting it to another location by crane and putting it in proper position including connecting all collections on HV/LV side and earthing strip to neutral and body and testing complete all as specified and directed. Note:- This work shall be carried out as and when required during break downs.

M&L for rectangular copper conductor of size and thickness as per the OEM specification to obtain the rated impedance values and KVA rating as specified by the OEM for various transformer capacities step down 33 KV for making HV/LV coils including the class 'A' insulation paper, all insulation material is including in the quoted rate, IEC standard, high density laminated board confirming IEC 60763 of required thickness quality all as specified and as directed. Note :- The quoted rates are deemed to be included labour charges for winding for transformer, drying the oil, removing and lifting of top cover, core, winding cleaning, Ovening and testing of transformer after repair and submission of test report etc.

Disconnecting and removing of the unserviceable silica gel breather supply and fixing new silica gel breather with silica gel for 5000KVA transformer capacities of transformers as per existing model and size all as directed.

Supply and fixing HV bushes complete with brass stud and nuts, check nuts, cups etc., complete for transformers of 5000 KVA, 33/11 KV and removing burnt out/unserviceable item complete all as specified directed. Note:-The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transformer oil, opening of top cover by unscrewing nut, bolts washers and connections.

Supply and fixing LV bushes complete with brass stud and nuts, check nuts, cups etc., complete for transformers of 5000 KVA, 33/11 KV and removing burnt out/unserviceable item complete all as specified directed. Note:-The rates quoted is deemed to be included the cost of necessary labour charges for draining out & re-filling transformer oil, opening of top cover by unscrewing nut, bolts washers and connections.

Shifting the 33/11 KV transformer of 5000 KVA capacity and any make, out door from platform by opening HV/LV side connection, earth connections etc and shifting it to work shop including transport charges and putting it in proper position including connecting all collections on HV/LV side and earthing strip to neutral and body and testing complete all as specified and directed. Note:- This work shall be carried out as and when required during break downs.

Repair/maintenance of SCADA software updating in the device, Control Panel, testing of all equipment, repairs to the AC to DC transformer and checking the input/output voltages and continuity making good all the control internal wiring/parts, testing all the signal cabling from the the HT Panels to the SCADA and the signal cabling from SCADA Panel to the monitor system, testing, commissioning of entire SCADA system to the entire satisfaction of Engineer-in-Charge. Note :- 1. The repairs/testing should be done by the authorised Technician. 2. Rates include all spare parts required at site. 3. Control wiring required at site will be measured & paid separately under relevant Sch 'A' items.

Testing and calibration of protective relay provided on 11 KV feeders P127/P111 relay and all auxillary relays 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, Checking the condition of transformers (Oil & winding temp and B/H relay) and taking corrective checking and operating the switchgear and trip circuit of HT panel/breakers for its proper functioning complete all as specified and directed.

M&L 33KV grade pin type, composite disc insulator 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 33KV grade pin type, composite polymeric insulator 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

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 200/1-1 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

Supplying, installation, commissioning and testing in replacement of 11 KV Current Transformer (CT`s), outdoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 200/1-1 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

Supplying, installation, commissioning and testing in replacement of 11 KV Potential Transformer (PT`s), outdoor type, resin cast epoxy type, of 13.1 KA/Sec having ratio 200/1-1 Amps having Core1: Class 5P10, 10VA for protection , Core2: Class 0.5, 10VA for metering including associated wiring complete all as specified and directed

Testing and setting the relays of incoming VCB's/ SF 6 of 33/11 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 including checking all control wiring terminator and replacing if necessary all the complete to the entire specification of Engr-in-charge.

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

Disconnecting and taking down the worn out jumpers in 33 KV yard and supply and fix new jumpers cutting to adequate length of ACSR conductor panther complete all as specified and directed.

M&L for Servicing and overhaulling of 33KV and 11 KV breaker for the satisfactory electrical/ manual operation of all breakers in MRS complete all as directed.

M&L for Servicing , testing and calibration of protective relay provided on 33KV feeders (P642/P643 relay and all auxillary relays) complete all as directed.

Dehydration and filtration of 5 MVA transformer 33/11 KVA, HT OCB oil indoor/outdoor/ isolation type at different location with centrifuging machine, manually operated and achieve BDV 60 KV including carrying out oil testing before and after the dehydration process for each OCB 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/OCB oil as per IS :335, break down voltage not less than 60 KV all as specified and directed. Make :- Power Oil/Electrol

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

Supply, Lay & Test & Commissioning cable 1100 volts with PVC insulated and steel armoured with multi stranded copper conductor of the sizes 10 core 2.5 Sq mm from PT to MRS breakers.

Supply, Lay & Test & Commissioning cable 1100 volts with PVC insulated and steel armoured with multi stranded copper conductor of the sizes 12 core 2.5 Sq mm from PT to MRS breakers.

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

M&L for Repairs/maintenance of 33/11KV HT VCB/OCB/SF6 breakers Panel including bus coupler of any type, size and capacity complete including the following :- Taking out 33/11KV HT VCB/OCB/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.

M&L earthing complete with copper plate electrode 600x 600x 3.15 mm 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 50 mm 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 140 mm 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 50 mm dia beyond 7.5 metres per earth will be measured and paid separately.

All as per item No: 26 above but using 32 x 6 mm galvanised MS strip earthing lead and MS galvanised plate of size 600 x 600 x 6 mm as earth electrode

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 32x6 mm GI strip complete all as specified and directed.

M&L for Copper strip 20 x 3.15mm with saddles and fixing screws etc. for roof conductors and down conductors above ground

Supply & Fix Gasket replacement for 5 MVA 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 2.5 Sqmm and providing Ferules for identification and necessary spares for fixing complete to the entire satisfaction of the Engr-in-Charge.

Supply installing testing and commissioning in replacement the relay module Micom P127 making necessary cutting in the existing panel and necessary control wiring FRLS of size not less than 2.5 Sqmm and providing Ferules for identification and necessary spares for fixing complete to the entire satisfaction of the Engr-in-Charge.

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 240 sqmm to 400 sqmm.

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.

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

M&L for XLPE cable jointing kit for 11 KV (earthed) for indoor end 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.

Supply, fix in repairs, 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 all as specified and directed.

Material and Labour for Brick work with sub-class bricks straight or curved on plan exc 6m mean radious in CM (1:6) complete all as specified and directed.

Material & Labour for 10mm thick rendering in cement motar (1:6) mixed on brick or concrete surfaces finished even & smooth w/o using extra cement complete all as specified and directed.

Supply and Fixing Hi-Voltage Insulating Mat, Class C, W.V-33 KV (33000 Volts), ISI marked (Sq.M) HSN 39189090 all as specified and directed

All as per item No.42 above but insulating Mat of 11000 Volts grade, ISI Marked all as specified and directed

M&L for spreading the 20mm coarse aggregate in 33KV MRS yard complete all as directed.

M&L for spreading the 40mm coarse aggregate in 33KV MRS yard complete all as directed.

Testing and re-setting and checking connection of control cable from transformer tap changer to panel of auto tap changer relay of 5 MVA transformer through authorised service engineer, Checking of instruments function and taking corrective action for improvement if found improper, Tap changer panel l/breakers for its proper functioning complete all as specified and directed.

Supply and fix in repairs of Automatic Voltage Regulating Relay (AVR) model EMCO 301E is used to Regulate the secondary voltage of Power Transformers via On-Load Tap Changer (OLTC) all specified and directed.

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

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.

S&F in repairs for GI pipe light grade 50 mm bore , 1.2 mtr long duly threaded on both side for fixing GI socket & making necessary arrangement for holding of air terminal rod all as specified & directed

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

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

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

M & L for Inspection and servicing of OLTC of transformer of capacity 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 : Servicing shall be done through OEM of OLTC.

Supply, Installing, Programming, Servicing, Setting, testing and commissioning of Micom P642 relay of main receiving panel of DRDL area including removing any unnecessary equipment inside the panel and making necessary cutting on the front panel for fixing the relay module properly along with dismantling of old unserviceable old type of relay complete all as specified and directed. Make- Schneider or equivalent in ABB/L&T/SEIMENS

Supply, erect, Testing & Commissioning of VAA Auxilary relay Alstom Model VAA11, 22, 33, 21, 3123 , 110V complete control wiring with material, Programming/setting/calibration including software of relays required and necessary addition/alternation of panel along with dismantling of old unserviceable old type of relay. Make- ALSTOM

M&L in replacement of analog type winding temperature indicator/ Oil temperature indicator , 50-60Hz, 110-220V, 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 for testing of old earthing using calibrated earth tester and submitting result to Engr-in-Charge. Earthing which showing much more result as specified as directed and disconnected should replaced with new earthing items are considered as below :- Note :- (i) Watering of earthing with 2 bucket 30 ltrs water mixed with salt (Total 5 Kg) shall be carried out one day before the testing and the cost of the same shall deemed to included in quoted rate.

M&L in replacement of analog type Oil temperature indicator, 50-60 HZ,110-220 V IP 48 temperature 0-160 degree mild steel body and indicator for oil/ temperature or 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, temparature indication upto 30 DC , works on max pressure 4Kg/sqcm accuracy 95% complete for any type/size /capacity transformer all as specified and directed

M&L for DC supply control wiring in SF6/VCB breakers at MRS all control wiring to be checked in front of Engr-in-Charge complete all as specified and directed.

Supply and fixing in repairs SF6/VCB charger motor connected to the existing breaker complete all as specified and directed.

Supply and fixing in repairs Master trip relay at 33KV MRS breaker complete all as specified and directed.

M&L stay assembly 16mm dia complete with accessories as shown in electrical plate no 1 including loop type isulator stay clamps stay strands excavation work and PCC work complete all as specified and directed.

Supply only water seal mastic tape made with EPR & buty rubber of size 45 mm width, 20 KV/mm dielectric strength complete all as specified. Make : Transeal, 3M

Supply & fix Post top insulators, solid core suitable for 33 KV grade complete confirming to IS-731 and as per IS standard all as specified and directed by Engr-incharge. Make : JAIPURIA/WS INDUSTRIES/ BIRLA NGK INSULATORS

M&L for repair/replacement of locking mechanism of SF6/VCB breakers including minor/major repairs like nut bolts, plates and connected spare parts demmed in quoted rates.

Testing power transformer of capacity 5 MVA for stability and magnitide and submitting the report duly signed by the authorised technician complete all as specified and directed.

Supply insulation and protecting overhead line insulation cover for protecting bare conductors insert & locking type of size as required at site, voltage range of not less than 36KV all as specified and directed. Make Yamuna/Denson/Transeal or any State Electricity Board

M&L for fabricating feeder display board at 33KV MRS various safety protection display board on acrylic sheet of thickness 3mm and size as required at site, using ecosolvent print including lamination and fixing to the wall using necessary fixing nuts, bolts and spares as required at site. The job includes removing of old layout board from its position complete all as specified and directed. Note : (i) Electric shock and First aid. (ii) Do's and Dont's in languages (English, Hindi & Telugu)

S&F in repairs LED 150 watt flood light fiitting made up of pressure die cast housing with toughened glass and individual LEDs with street optics and IP 66 protection, 5700K including fixing to pole/wall with necessary nuts, bolts and washers complete all as directed. Make :Havells/Philips/Cropmton/Wipro

S&F in replacment indoor industrial type suspended LED integral batten 36W, 5700K CCT, aluminium extruded body and polycarbonate diffuser, <10%THD, integral elctronic driver complete fixing with all accessories prewired and including connecting up with three core flexible copper conductor cable with suitable size complete removing unserviceable fittings all as specified and directed. Make : Havells/Philips/Cropmton/Wipro

Supply and fix of monoplast insulation material using for HT cable end terminal in transformer complete all as specified and directed.

Supply, lay, test and commissioning of XLPE insulated HT cable, screened PVC bedded, galvanized steel strip or wire armoured electric power cable of 6350(UE) / 11000 (E) volts grade with multistranded aluminium conductor of cross sectional area 240 sqmm ; 3 core including providing cable lugs and to be laid in trenches, fixed along the poles bare or through pipes complete and removing the unserviceable cable all as specified and directed. Note : Excavation and earth work / sand / cable covers will be measured and paid seperately

All as per item No.77 above but HT Cable size 185 sqmm 3 core

Excavation in trenches not exc.1.5 Mtr in width and not exceeding 1.5 Mtr in depth for laying of cables and getting out in hard/dense soil etc complete all as specified and directed.

Returning, filling in including spreading, levelling, watering and well ramming in layer not exceeding 25 cm thick using soil complete all as specified and directed.

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

Supply and filling Dry river sand for cushioning to cables in trenches including spreading, levelling complete all as specified and directed. Note:- Only punned thickness will be considered for measurement purpose.

Supply and laying un reinforced precast concrete cable cover, class HV, type 1, flat size 300 x 180 x 40 mm for protection of HT cable including taking down unserviceable cable cover complete all as specified and directed.

Supply and Fix GI tubing 150 mm dia light grade for protection of earth conductor and all as specified and directed.

Supply and fixing in repairs CT PT Junction Box of existing size at 33 KV MRS yard complete all as specified and directed.

M&L for painting at 33KV MRS yard Group Bus Bar of colour Red, Yellow & Blue including removal of old painting with scrub papers using 1 coat of red oxide and 2 coats of enamel paint with spray painting complete all as specified and directed.

Supply, Install and erect steel tubular swaged pole type 410 SP-55 of 11.0 mtrs long complete with cast iron base plate finial taper plug, pole cap, bolts, nuts and washers pole made out of MS tubing confirming to IS-2713 Part-II, including drilling of holes painting with two coats of bituminous paint internally and externally embedded portion in ground/concrete and painting to exposed surfaces with two coats aluminium paint and one coat of red oxide primer complete all as specified and directed. Note :- Excavation/Earth work in any type of soil/ strata PCC foundation, coping of poles, cross arms, clamps shall be measured and paid separately. Make :- M/s Bombay Tubes/ M/s Jindal Steel Products/ M/s India Tubes Co/ M/s Bharat poles/ National Tubing

Material and Labour for PCC 1:3:6 type C2 with 40 mm stone aggregate for foundation of poles/transformer bed/cable duct foundation/panel base/ chain link supports etc including necessary form work etc complete all as specified and directed.

Material and Labour for PCC 1:2:4 type B1 with 20 mm graded stone aggregate for coping of pole including necessary form work etc complete all as specified and directed.

Excavation in trenches exc.1.5 Mtr in width and exceeding 1.5 Mtr in depth and getting out in hard/dense soil etc complete all as specified and directed.

vvcenterprises (BID ID -3068364)

hari enterprises (BID ID -3068010)

BHAGYARAM ENTERPRISES (BID ID -3065719)

saradhi construction combines (BID ID -3068278)

SUN LIGHT HOUSE (BID ID -3067688)

Anjana corporation (BID ID -3067624)

SHRI GANESH ENTERPRISES (BID ID -3068150)