SPL REPAIR / REPLACEMENT OF BER TRANSFORMERS 11/0.433 KV AND ALLIED WORKS AT FATEHGARH CANTT

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor Type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 160 KVA capacity,Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, having Primary Voltage [HT] 11 KV and Secondary Voltage [LT] of 433 Volts, Delta connected on 11 KV Side & Star connected on 433 Volts side, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], energy efficient level III with latest amendment complete all as specified and as directed and comprising of the following Specification and Fittings:(Continuous Rating : 160 KVA, No-Load Voltage Ratio : 11 KV / 433 V , Tapping on HV [%] : ± 7.5, ± 5, ± 2.5, Phase & Frequency : 3 Phase & 50 Hz, Connection : Delta Star, Vector Group : DYN 11, Cooling : ONAN, Type : Outdoor). Fittings:[a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device.[b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug, [c] Undercarriage with four plain rollers, [d] Oil filling hole cum air release plug, [e] Drain Valve cum Sampling Valve, [f] Top Filter Valve with Plug, [g] Rating Plate with Diagram Plate,[h] Lifting lugs for Transformer,[j] Lifting lugs for Core,[k] Earthing Terminals, [l] Thermometer Pockets, [m] Silica Gel Breather,[n] Explosion Vent, [o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts,[p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts,[q] Marshalling Box with Double Window, [r] OCTC. Description of item contd...

Description of srl item No.1 (Contd...) Note: [a] The Transformers shall also be provided with following Terminal Arrangement & Fittings and rate quoted against this item is deemed to be included for the same:Terminal Arrangement: [i] HV & LV Side: Cable Box, [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. Transformer Oil shall be got tested. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. [b] All necessary arrangements with devices for measuring the temperature of core winding and oil, [c] Provision of Brick Masonry Platform for Transformer with Brickwork with old size Bricks in Cement Mortar 1:6 including excavation and earth work in any type of soil, PCC foundation with 100mm thick PCC 1:4:8, Type D2 using 40mm graded aggregate, PCC flooring with 40 mm thick PCC, 1:2:4, Type B1, using 20mm graded aggregate, over a sub base of 75mm thick PCC 1:4:8, Type D2, using 40mm graded aggregate over approved earth filling and rendering in CM 1:4, 20 mm thick over brick walls and applying three coats of white wash etc complete all as specified and as directed. (d) The quoted rate shall deemed to be inclusive of dismantling of existing transformer of any capacity and deposited to MES store yard complete all as specified and directed

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor Type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 250 KVA capacity,Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, having Primary Voltage [HT] 11 KV and Secondary Voltage [LT] of 433 Volts, Delta connected on 11 KV Side & Star connected on 433 Volts side, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], energy efficient level III with latest amendment complete all as specified and as directed and comprising of the following Specification and Fittings:(Continuous Rating : 250 KVA, No-Load Voltage Ratio : 11 KV / 433 V , Tapping on HV [%] : ± 7.5, ± 5, ± 2.5, Phase & Frequency : 3 Phase & 50 Hz, Connection : Delta Star, Vector Group : DYN 11, Cooling : ONAN, Type : Outdoor). Fittings:[a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device.[b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug, [c] Undercarriage with four plain rollers, [d] Oil filling hole cum air release plug, [e] Drain Valve cum Sampling Valve, [f] Top Filter Valve with Plug, [g] Rating Plate with Diagram Plate,[h] Lifting lugs for Transformer,[j] Lifting lugs for Core,[k] Earthing Terminals, [l] Thermometer Pockets, [m] Silica Gel Breather,[n] Explosion Vent, [o] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts,[p] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts,[q] Buchholz Relay with 2 Shut-Off Valves,[r] Marshalling Box with Double Window, [s] OCTC. Description of item contd...

Description of srl item No.2 (Contd...) Note: [a] The Transformers shall also be provided with following Terminal Arrangement & Fittings and rate quoted against this item is deemed to be included for the same:Terminal Arrangement: [i] HV & LV Side: Cable Box, [ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side. [iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. Transformer Oil shall be got tested. [iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector., [b] All necessary arrangements with devices for measuring the temperature of core winding and oil, [c] Provision of Brick Masonry Platform for Transformer with Brickwork with old size Bricks in Cement Mortar 1:6 including excavation and earth work in any type of soil, PCC foundation with 100mm thick PCC 1:4:8, Type D2 using 40mm graded aggregate, PCC flooring with 40 mm thick PCC, 1:2:4, Type B1, using 20mm graded aggregate, over a sub base of 75mm thick PCC 1:4:8, Type D2, using 40mm graded aggregate over approved earth filling and rendering in CM 1:4, 20 mm thick over brick walls and applying three coats of white wash etc complete all as specified and as directed. (d) The quoted rate shall deemed to be inclusive of dismantling of existing transformer of any capacity and deposited to MES store yard complete all as specified and directed

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor Type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 315 KVA capacity,Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, having Primary Voltage [HT] 11 KV and Secondary Voltage [LT] of 433 Volts, Delta connected on 11 KV Side & Star connected on 433 Volts side, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], energy efficient level III with latest amendment complete all as specified and as directed and comprising of the following Specification and Fittings:(Continuous Rating : 315 KVA, No-Load Voltage Ratio : 11 KV / 433 V , Tapping on HV [%] : ± 7.5, ± 5, ± 2.5, Phase & Frequency : 3 Phase & 50 Hz, Connection : Delta Star, Vector Group : DYN 11, Cooling : ONAN, Type : Outdoor) Fittings:[a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device.[b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug, [c] Undercarriage with four plain rollers, [d] Oil filling hole cum air release plug, [e] Drain Valve cum Sampling Valve, [f] Top Filter Valve with Plug, [g] Rating Plate with Diagram Plate,[h] Lifting lugs for Transformer,[j] Lifting lugs for Core,[k] Earthing Terminals, [l] Thermometer Pockets, [m] Silica Gel Breather,[n] Explosion Vent, [o] Double Float Buchholz with alarm and trip contacts including control cable of copper conductor of size & length from Marshalling Box to Relay of VCB, [p] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts,[q] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts,[r] Buchholz Relay with 2 Shut-Off Valves,[s] Marshalling Box with Double Window, [t] OCTC. Description of item contd...

Description of srl item No.3 (Contd...) Note: [a] The Transformers shall also be provided with following Terminal Arrangement & Fittings and rate quoted against this item is deemed to be included for the same:Terminal Arrangement:[i] HV & LV Side: Cable Box,[ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side.[iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. Transformer Oil shall be got tested.[iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector. (b) All necessary arrangements with devices for measuring the temperature of core winding and oil, complete all as specified and as directed. (c) The quoted rate shall deemed to be inclusive of dismantling of existing transformer of any capacity and deposited to MES store yard complete all as specified and directed

Supplying, Installing, Connecting, Commissioning and Testing of Transformer, Step Down, Outdoor Type, 11 KV / 433 V [at No load], AC, 3 Phase, 50 Hz, of 400 KVA capacity,Copper Wound, Oil immersed, CRGO Core type Naturally cooled, Built-up with class "A" insulation, having Primary Voltage [HT] 11 KV and Secondary Voltage [LT] of 433 Volts, Delta connected on 11 KV Side & Star connected on 433 Volts side, designed & constructed with particular reference to Tropical Condition, conforming to IS – 1180 [Part-I], energy efficient level III with latest amendment complete all as specified and as directed and comprising of the following Specification and Fittings:(Continuous Rating : 400 KVA, No-Load Voltage Ratio : 11 KV / 433 V , Tapping on HV [%] : ± 7.5, ± 5, ± 2.5, Phase & Frequency : 3 Phase & 50 Hz, Connection : Delta Star, Vector Group : DYN 11, Cooling : ONAN, Type : Outdoor). Fittings:[a] Externally hand operated Off–Circuit Tap Switch with position indicator and locking device.[b] Conservator with Oil Gauge, filling hole with plug & drain hole with plug, [c] Undercarriage with four plain rollers, [d] Oil filling hole cum air release plug, [e] Drain Valve cum Sampling Valve, [f] Top Filter Valve with Plug, [g] Rating Plate with Diagram Plate,[h] Lifting lugs for Transformer,[j] Lifting lugs for Core,[k] Earthing Terminals, [l] Thermometer Pockets, [m] Silica Gel Breather,[n] Explosion Vent, [o] Double Float Buchholz with alarm and trip contacts including control cable of copper conductor of size & length from Marshalling Box to Relay of VCB, [p] 150mm size Oil Temperature indicator, dial type with alarm and trip contacts,[q] 150mm size Winding Temperature indicator, dial type with alarm and trip contacts,[r] Buchholz Relay with 2 Shut-Off Valves,[s] Marshalling Box with Double Window, [t] OCTC. Description of item contd....

Description of srl item No.4 (Contd...) Note: [a] The Transformers shall also be provided with following Terminal Arrangement & Fittings and rate quoted against this item is deemed to be included for the same:Terminal Arrangement:[i] HV & LV Side: Cable Box,[ii] Quad furcating cable box with five compression glands for PVC Cable and One additional neutral terminal shall be brought out separately for earthing purpose on LV Side.[iii] First filling of new and unused Transformer Oil [IS – 335 Marked], filtered and tested up to 60KV dielectric strength at 2.5mm air gap between testing electrodes. Certification of dielectric strength shall be submitted by the Contractor after filling the oil. Transformer Oil shall be got tested.[iv] Apart from routine tests mentioned in these tender documents and relevant IS, pre-commissioning inspection of Transformer shall be carried out by Senior Electrical Inspector / Electrical Inspector., (b) All necessary arrangements with devices for measuring the temperature of core winding and oil, complete all as specified and as directed. (c) The quoted rate shall deemed to be inclusive of dismantling of existing transformer of any capacity and deposited to MES store yard complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode 600 x 600 x 6 mm thick, burried directly in ground (earth pit not less than 2.25 mtr below ground level) with top edge of the plate not less than 1.5 mtr below normal ground level, connected to GI earth strip 32 x 6 mm by means of bolts, nuts, check nuts, and washers of galvanised iron or steel all as shown in electrical plate No. 3 connected to earthing test point all as specified, including excavation, earth work, PCC chamber and cover, watering pipe, GI wiremesh funnel with protection pipe and test on completion after dismantling unserviceable earthing (above GL only) complete all as specified and directed. Note :- On testing after completion of desired earth resistance is not obtained the earthing will be redone by the contractor at no extra cost.

Excavating in trenches n. exc 1.5 m wide and n.exc 1.5 m in depth, for foundations, laying of pipes & cables etc and not exceeding 10 sqm on plan for manholes etc and getting out in soft / loose soil complete all as specified and directed.