SPECIAL REPAIR/REPLACEMENT OF BER TRANSFORMER, VOLTAGE STABILIZERS AND ALLIED WORKS AGE E/M UNDER GE SATWARI

Amount

Disconnecting of existing Voltage Stabilizer Indoor type 433-volts from supply system electrically both side, earth terminal and taking down carefully from pole/platform, mounted on PCC foundation etc and depositing to MES store yard of capacity 25 KVA to 200 KVA complete all as specified and as directed.

Disconnecting of existing Transformer Outdoor/Indoor type 11 KV/433-volt from supply system electrically both side, earth terminal and taking down carefully from pole/platform mounted on PCC foundation etc and depositing to MES store yard of capacity 63 KVA complete all as specified and as directed.

Supply, installed, testing and commissioning outdoor type, step down transformer 11000/433 volts ( at no load ) AC, 3 phase 50 Hz capacity 63 KVA, core type, double copper wound, oil immersed, naturally cooled ,oil natural, Air natural (ONAN) with external cooling fins, delta connected on primary side (HV) star connected on secondary side (LV) in accordance with vector symbol, DYN 11 (vector group) with neutral brought out on secondary side (LV Side) and having tapping at +2.5 % to +7.5% HV Side to be changed by means of hand operated off load tap change gear. The maximum temperature rise should not exceed 45 degrees Celsius in oil and 55 degree Celsius in HV.LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius. The transformer shall be IS:1180 Part-1 : 2014 (Level-II) (with latest upgradation as on date) and BEE Certified and shall comprise of the followings:- (a) 03 Nos porcelain bushing with arcing horn on HV side suitable for 11 KV complete with bushing, copper rods, nuts and washers. (b) One cable box on LT side (Secondary Side) consisting of four Nos porcelain bushing with copper rods, complete with nuts and washers, with two Nos cable gland suitable for reception/taking out of XLPE insulated heavy duty armoured cable including gland, joint and jointing materials complete. (c ) Oil conservator with filter type drain valve and oil level gauge. (d) De- hydrating breather with first fill dehydrating agent (silica gel). (e ) Explosive vent. (f) Thermometer pocket on tank cover. (g) One Nos 100 mm dia, dial type thermometer, vapor pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter reading temperature indicator with resisting device for transformer. (h) Two earthing terminals on tank cover to facilitate fixing of 32 X 6 mm galvanised iron strip for earthing of neutral & body (i) Rating plate and terminal making plate. (j) Oil level gauge. (k) Oil drain/ filter valve. (l) Lifting lugs. (m) Oil filling hole with cap/plug with connecting plate complete. (n) Air release valve plug. (o) Four plain solid cast steel detachable rollers. (p) Extra bushing for neutral , outside the LT cable box for providing independent earthing for neutral. (q) First filling of new and unused transformer oil IS-35/93 (fourth revision) marked (Make -savita/Power) Oil)filtered and tested up to 40 KV dielectric strength at 2.5 mm air gap between testing

Supply, Installation, commissioning and testing of Servo controlled automatic voltage stabilizer for automatic operation of capacity 25 KVA (conforming to BIS:9815: Part-I: 1994 reaffirmed 2009), indoor type 3 phase ,4 wire 50 Hz naturally oil cooled, unbalanced type copper wound digital display type relay free smooth and silent operation with 1st filling of transformer oil (IS335/1993 reaffirmed 2005) having following specifications:- (i) Input voltage 300V-480V, (ii) output voltage stabilizer at 415 Volt +1%(adjustable) (iii) No distortion in wave form,(iv) Response time not to exceed 10 mile seconds,(v) Sensivity + 1% (vi) Rate of correction 8 Volt/sec for single phase and 20 Volts /sec for phase to phase (vii) No load losses less than 0.5%,(viii) Full load losses less than 2.5 %,(ix) Duty cycle- continuous 24x7 (x) Efficiency more than 95% (xi) Type of load : 3 phase unbalanced type,( xii) Digital display voltmeter/ammeter.(xiii) Capacity 25 KVA Note: -The stabilizer shall be powder coated for water/ dust and vermin proof complete all as specified and as directed.

Supply, Installation, commissioning and testing of Servo controlled automatic voltage stabilizer (conforming to BIS:9815: Part-I: 1994 reaffirmed 2009) for automatic operation of capacity 50 KVA , indoor type 3 phase ,4 wire 50 Hz naturally oil cooled, unbalanced type copper wound digital display type relay free smooth and silent operation with 1st filling of transformer oil (IS335/1993 reaffirmed 2005) having following specifications:- (i) Input voltage 300V-480V, (ii) output voltage stabilizer at 415 Volt +1%(adjustable) (iii) No distortion in wave form,(iv) Response time not to exceed 10 mile seconds,(v) Sensivity + 1% (vi) Rate of correction 8 Volt/sec for single phase and 20 Volts /sec for phase to phase (vii) No load losses less than 0.5%,(viii) Full load losses less than 2.5 %,(ix) Duty cycle- continuous 24x7 (x) Efficiency more than 95% (xi) Type of load : 3 phase unbalanced type,( xii) Digital display voltmeter/ammeter.(xiii) Capacity 50 KVA

Supply, Installation, commissioning and testing of Servo controlled automatic voltage stabilizer (conforming to BIS:9815: Part-I: 1994 reaffirmed 2009) for automatic operation of capacity 100 KVA , indoor type 3 phase ,4 wire 50 Hz naturally oil cooled, unbalanced type copper wound digital display type relay free smooth and silent operation with 1st filling of transformer oil (IS335/1993 reaffirmed 2005) having following specifications:- (i) Input voltage 300V-480V, (ii) output voltage stabilizer at 415 Volt +1%(adjustable) (iii) No distortion in wave form,(iv) Response time not to exceed 10 mile seconds,(v) Sensivity + 1% (vi) Rate of correction 8 Volt/sec for single phase and 20 Volts /sec for phase to phase (vii) No load losses less than 0.5%,(viii) Full load losses less than 2.5 %,(ix) Duty cycle- continuous 24x7 (x) Efficiency more than 95% (xi) Type of load : 3 phase unbalanced type,( xii) Digital display voltmeter/ammeter.(xiii) Capacity 100 KVA Note: -The stabilizer shall be powder coated for water/ dust and vermin proof complete all as specified and as directed.

Supply, Installation, commissioning and testing of Servo controlled automatic voltage stabilizer (conforming to BIS:9815: Part-I: 1994 reaffirmed 2009) for automatic operation of capacity 200 KVA , indoor type 3 phase ,4 wire 50 Hz naturally oil cooled, unbalanced type copper wound digital display type relay free smooth and silent operation with 1st filling of transformer oil (IS335/1993 reaffirmed 2005) having following specifications:- (i) Input voltage 300V-480V, (ii) output voltage stabilizer at 415 Volt +1%(adjustable) (iii) No distortion in wave form,(iv) Response time not to exceed 10 mile seconds,(v) Sensivity + 1% (vi) Rate of correction 8 Volt/sec for single phase and 20 Volts /sec for phase to phase (vii) No load losses less than 0.5%,(viii) Full load losses less than 2.5 %,(ix) Duty cycle- continuous 24x7 (x) Efficiency more than 95% (xi) Type of load : 3 phase unbalanced type,( xii) Digital display voltmeter/ammeter.(xiii) Capacity 200 KVA Note: -The stabilizer shall be powder coated for water/ dust and vermin proof complete all as specified and as directed.

Earthing complete with galvanized steel earth plate electrode 60 cm x60cmX6 mm thick buried directly in ground to a depth not less than 3 mtr below normal ground level with top edge of earth plate at a depth not less than 2.25 mtr below normal ground level, earth plate surrounded by 15 cm thick packed layer of charcoal, magnicium sulphate, common salt and connected with in and including GI strip of size 25x4 mm by means of stainless steel bolts, nuts, check nuts and washers connected to Transformers / panels. 40 mm bore of GI pipe (light grade) from earth plate up to testing point for protection of GI strip ( Length of GI earth strip & protection pipe is up to 7.5 RM all as incl) and 20 mm bore GI pipe (medium grade) with wire mesh and funnel for watering including necessary excavation and earth work, (in any type of soil) PCC chamber (1:3:6) type C-2 with RCC cover with suitable size of handle made out of 8mm dia MS bars and angle iron 40 x 40x 3mm frame for cover complete all as shown in electrical plate No 3 of MES schedule Part I of SSR Part-I 2220 complete all as specified. RCC cover shall be painted with red paint over a primer coat and the rate include in the unit rate of item etc complete all as specified and as directed. Note :-If soil required in earthing shall be provided by contractor without any extra cost. No extra amount shall be given to contractor for extra earthing

Earthing complete with galvanized steel earth plate electrode 60 cm x60cmX6 mm thick buried directly in ground to a depth not less than 3 mtr below normal ground level with top edge of earth plate at a depth not less than 2.25 mtr below normal ground level, earth plate surrounded by 15 cm thick packed layer of charcoal, magnicium sulphate, common salt and connected with in and including GI strip of size 32x6 mm by means of stainless steel bolts, nuts, check nuts and washers connected to Transformers / panels. 40 mm bore of GI pipe (light grade) from earth plate up to testing point for protection of GI strip ( Length of GI earth strip & protection pipe is up to 7.5 RM all as incl) and 20 mm bore GI pipe (medium grade) with wire mesh and funnel for watering including necessary excavation and earth work, (in any type of soil) PCC chamber (1:3:6) type C-2 with RCC cover with suitable size of handle made out of 8mm dia MS bars and angle iron 40 x 40x 3mm frame for cover complete all as shown in electrical plate No 3 of MES schedule Part I of SSR Part-I 2220 complete all as specified. RCC cover shall be painted with red paint over a primer coat and the rate include in the unit rate of item etc complete all as specified and as directed. Note :-If soil required in earthing shall be provided by contractor without any extra cost. No extra amount shall be given to contractor for extra earthing

Taking out unservicable HT cable aluminium coonductor of any size 3 core from excavated trench/pole/over ground etc taking credit of cable to replacd with new one complete all as specified and as directed.

XLPE HT cable insulated, armoured, heavy duty electric aluminium conductor, PVC sheathed galvanized steel strip or wire, armoured electric power cables, with aluminium stranded conductor voltage rating 11000 volts grade, cross sectional area, 95 Sqmm x 3 core laid in trenches/road crossing/under floor / on walls/ on poles including testing. complete all as specified and as directed.

XLPE HT cable insulated, armoured, heavy duty electric aluminium conductor, PVC sheathed galvanized steel strip or wire, armoured electric power cables, with aluminium stranded conductor voltage rating 11000 volts grade, cross sectional area, 185 Sqmm x 3 core laid in trenches/road crossing/under floor / on walls/ on poles including testing. complete all as specified and as directed.

Outdoor type cable end termination jointing kit heat shrinkable complete with all accessories and jointing materials suitable mounting on channel/angle iron with and incl cable pieces of suitable size length and line type vice for 3 core 120 to 185 Sqmm XLPE HT cable (kit shall be not older than 3 months from the date of manufacture) complete all as specified and as directed.

Outdoor type cable end termination jointing kit heat shrinkable complete with all accessories and jointing materials suitable mounting on channel/angle iron with and incl cable pieces of suitable size length and line type vice for 3 core 95 Sqmm XLPE HT cable (kit shall be not older than 3 months from the date of manufacture) complete all as specified and as directed.

Excavation in trenches not exc. 1.5 m wide and not exc. 1.5 m depth for foundation laying of cable ect or for shaft wells cesspits manholes per holes etc 10sqmm on plan and not exc 1.5m in depth and getting out in any type of soil complete all as specified and as directed.

Returning, filling in incl. spreading, leveling, watering and well ramming in layers not exc. 25 cm thick in any type of soil complete all as specified and as directed.

Removing excavated material (soil) not exceeding 50m and depositing where directed at a level not exceeding 1.5 m above the starting point complete all as specified and as directed.

Cutting of bituminus road/ floor culvert/PCC hard standing for laying of pipe /cable not exceeding 1.5 mtr wide and not exceeding 1.5 mts deep incl refilling with material and watering well ramming and compecting and making good with PCC 1:2:4, type B-1, 100 mm thik complete all as specified and as directed.

Providing dry river sand as in sand cushioning to under ground cable including punning down of sand inlayers complete all as specified and as directed.

Dry bricks over cable laid in trenches as mechanical protection to cable with width equal to the length of bricks with well burnt sub class 'B' bricks complete all as specified and as directed.

GI pipe "light grade" for road crossing /on wall/on pole with fixed clamps, nuts,bolts for cable protection of size 80 mm dia complete all as specified and as directed.

kailu construction co (BID ID -3194868)

M/S S K Electricals Regd (BID ID -3196637)

G.M. ENGINEERING SERVICES (BID ID -3192728)

SATISH AND CO (BID ID -3196269)

SAINI AND SAINI BUILDERS (BID ID -3195941)

M/S JIWAN SINGH (BID ID -3196467)

VEE ESS ENGINEERS (BID ID -3196290)