AUGMENTATION/ UPGRADATION OF TRANSFORMERS AND ALLIED WORKS AT CH (CC) AND CMDC UNDER GE E/M LUCKNOW

Excavation in soft / loose soil in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth and getting out complete.

Returning filling with earth obtained from excavation including spreading watering and consolidation in layers not exceeding 25 cms thick complete.

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

Supplying and making indoor cable end terminations with heat shrinkable jointing kit including all accessories & lugs suitable for 11 KV (earthed) 3 core 95 sqmm XLPE aluminium conductor cable as required.

(a) 95 sqmm 3.5 core

(b) 240 sqmm 3.5 core

Supplying, laying, testing and commissioning XLPE insulated screened, PVC bedded, galvanised steel strip or wire armoured, electric power cables (heavy duty) with stranded aluminium conductor 6.35 KV(UE)/11 KV(E) of size 95 sqmm 3 core complete.

M&L for earthing with galvanised steel earth plate electrode 600 mm x 600 mm x 6 mm thick burried directly in ground (earth pit not less than 2.25 metres deep below normal ground level) with top edge of plate not less than 1.5 metre below normal ground level connected to galvanised earth strip 32 x 6 mm upto 7.5 m by means of steel bolts, nuts, check nuts and washers all as shown in electrical plate No 3 of MES SSR Part-I (2009) and testing on completion with and including PCC pit in mix 1:3:6 type C1 with RCC 1:2:4 type B-1, 40 mm thick cover reinforced with 6 mm dia M.S bars 3 Nos both ways with lifting hook made out of 6 mm dia bar, watering arrangement with funnel and wire mesh and 20 mm bore light grade GI watering pipe, common salt and charcoal filling, necessary excavation and earth work as required.

S&F DWC HDPE pipe ISI marked alongwith all accessories like socket, bend, couplers etc ISI marked as per IS-16205 (Part-24) including cutting/ jointing laid in trenches, wall, floor etc as required for the following nominal sizes:-

(a) Outer dia 90 mm and inner dia 75 mm

(b) Outer dia 120 mm and inner dia 103 mm

Supplying, Installation, Testing and Commissioning of cable route marker with 10 cm X 10 cm X 5 mm thick G.I. plate with inscription there on, bolted /welded to 35 mm x 35 mm x 6 mm angle iron, 60 cm long and burried along with the route of HT cable as required.

Supply, installation, testing & commissioning of outdoor type Compact Sub Station (CSS) having 11 KV, 630A RMU, 100 KVA copper wound transformer factory assembled comprising of following:-

(a) HT Section. RMU Non extensible 1 way, 11 KV, SF6 circuit breaker, free Standing, Metal Clad, SF6 insulated Ringmaster with 01 No direct cable module & 01 No. 630A fixed manual SF6 Circuit breaker, dual core resin cast ring CT 100/1A, Core1: Class 0.5, 15VA, Core 2: Class 5P10, 15VA, Self Powered microprocessor based non directional IDMT numerical relay 2OC+1EF, Ring Switches and T OFF SF6 circuit breaker with Integrated Earthing Switches, Live Cable Indicator for Ring Switches, Padlocking facility, digital ammeter to measure current, shunt trip coil to work on 24 V DC, Indication lamps for VCB off / On / Auto trip/ Trip circuit healthy/ Spring charge indication.

(c )MV Section: (a) MV side incomer one number MCCB 250 A, 4 Pole, 415V, 25 KA (Icu=Ics), microprocessor based adjustable between 40% to 100%. (b) RYB Indication lamp, Digital Multifunction Meter (KWH, KVAR, Frequency, Current & Voltage.

(d) Outdoor Enclosure: (a) The enclosure shall be 2 mm thick galvanised sheet steel tropicalized to meet weather conditions including all the partitions & doors. The base of the enclosure shall be of 4 mm thick hot dip galvanised sheet steel to ensure rigitity for easy transport & installation. (b) Provision for receiving Incoming cables through Bottom entry and outgoing through Bus bar to Transformer panel including termination kit & glands. (c) Provision for receiving Incoming through bus duct by bus bar and Outgoing through cable box bottom entry including termination kit & glands. (d) Bus Bar – Copper (e) Earth Bus – Copper (f) Paint shade: Siemens Grey (RAL 7032). (g) Space Heater with ON/OFF switch and thermostat, single phase switch with socket, LT cubical illumination LED lamp with door limit switch and MCBs for AC / DC Control.

(e ) Foundation:- Suitable PCC foundation as per the recommendation of OEM and best engineering practice.

Supply, installation, testing & commissioning of outdoor type Compact Sub Station (CSS) having 11 KV, 630A RMU, 315 KVA copper wound transformer factory assembled comprising of following:-

(a) HT Section. RMU non extensible 1 way, 11 KV, SF6 circuit breaker, Free Standing, Metal Clad, SF6 insulated Ringmaster with 01 No. direct cable module & 01 No. 630A fixed manual SF6 Circuit breaker, dual core resin cast ring CT 100/1A, Core1: Class 0.5, 15VA, Core 2: Class 5P10, 15VA, Self Powered microprocessor based non directional IDMT numerical relay 2OC+1EF, Ring Switches and T OFF SF6 circuit breaker with Integrated Earthing Switches, Live Cable Indicator for Ring Switches, Padlocking facility, digital ammeter to measure current, shunt trip coil to work on 230V AC, Indication lamps for VCB off / On / Auto trip/ Trip circuit healthy/ Spring charge indication.

(b) Transformer Section: Transformer 315 KVA, 11/0.433 KV, copper wound step down “BIS Marked” EEL-2 as per IS:1180 (Part-1)/2014 with amendment No 4 having OFF load tap changing arrangement on HV side in steps of ±2.5%, ±5% and ±7.5% including first filling of filtered dehydrated oil conforming to IS:335 and standard accessories.

(c )MV Section: (a) MV side incomer one number MCCB 250 A, 4 Pole, 415V, 25 KA (Icu=Ics), microprocessor based adjustable between 40% to 100%. (b) RYB Indication lamp, Digital Multifunction Meter (KWH, KVAR, Frequency, Current & Voltage.

(d) Outdoor Enclosure: (a) The enclosure shall be 2 mm thick galvanised sheet steel tropicalized to meet weather conditions including all the partitions & doors. The base of the enclosure shall be of 4 mm thick hot dip galvanised sheet steel to ensure rigitity for easy transport & installation. (b) Provision for receiving Incoming cables through Bottom entry and outgoing through Bus bar to Transformer panel including termination kit & glands. (c) Provision for receiving Incoming through bus duct by bus bar and Outgoing through cable box bottom entry including termination kit & glands. (d) Bus Bar – Copper (e) Earth Bus – Copper (f) Paint shade: Siemens Grey (RAL 7032). (g) Space Heater with ON/OFF switch and thermostat, single phase switch with socket, LT cubical illumination LED lamp with door limit switch and MCBs for AC / DC Control.

Supplying, installing, testing & commissioning of 11 KV, 630 A, 3 phase, 50 Hz, 21 KA for 3 second, outdoor type dust & vermin proof with copper bus bars, fully interlocked extensible Ring Main Unit (RMU) 8 way SF6 insulated 2 Nos Incomer VCB and 6 Nos outgoing VCBs 630 A motorised modules. All live parts of the switchboard like VCB, bus bars etc should be enclosed in robotically laser welded single stainless steel tank 3 mm ± 0.5 mm thick having IP 67 degree of protection filled with SF6 gas as dielectric medium. RMU should be complete with all accessories such as dual core Ring CTs, self powered microprocessor based numerical relay 3 O/C + 1 E/F, manometer, Air insulated metering module, voltage indications, mechanical indications for breaker ON / OFF / Trip / Spring charged duly powder coated in Siemens grey shade RAL 7032 mounted after making foundation in PCC (1:2:4) type B-1 using 20 mm graded stone aggregate confirming to all relevant IS & IEC standards including the following items:-

(i) Each VCB module shall have following accessories :- (a) 11 KV, 630 amp, 21 KA for 3 second manually operated vacuum circuit breaker. (b) Push buttons for breaker ON/OFF (c) Self Powered Microprocessor Relay (3 O/C + 1 E/F) with rechargeable battery & power pack. (d) Three numbers 11 KV, dual core resin cast ring CTs 100/1-1 A, 2.5 VA, accuracy class 5P10 for protection & class 0.5 for metering. (e) Mechanical Indications for breaker ON, OFF, EARTH, TRIP, Spring Charged-Discharged. (f) Manometer for indicating pressure of SF6 gas inside the enclosure with pressure healthy marking. (g) Right angle boots for cable terminations. (h) Mimic diagram on front panel complete with status indicatiors.

(ii) Air insulated metering module comprising of :- (a) Resin cast PTs of the ratio 11 kV / √3 / 110 V / √3, 50 VA, Class 0.5 with HT fuses on primary side and MCB on secondary side. (b) Digital Multifunction Meter (KWH, KVAR, Frequency, Current & Voltage) (c) LED bulb for illumination (d) Space Heater with thermostat

Note :- All items / components / accessories which are useful and necessary for efficient working of the RMU shall deemed to be included in it irrespective of the fact whether such items are specifically mentioned in it or not.