replacement of 33KV breaker isolators and Bus conductor at 4X40MVA 110/33KV Sub-Station at Kadamba plateau

(A) COST OF MATERIAL

Isolators,33KV 2000 Amps,HDP,triple pole,outdoor,double break centre pole rotating type electrically and manually operated isolator for incomer with earth switch along with drive mechanism box,complete in all respects with accessories as per specification.

Isolator 33 kv, 630A,triple pole motor operated outdoor type isolator (with earth switch )

Circuit breaker outdoor type VCB circuit breaker 33KV (66KV),2000A 31.5KA 3 phase50Hz complete with all accessories breaker mounting GI stucture complete in all respect as per specifications.

AAC Tarantulla conductor of size 37,5.23mm for 33 KV

33 KV TEE connector to suit all Aluminium tarantula conductor size 37/5.23mm to all Aluminium tarantula conductor size 37/5.23mm on both Main & Branch way

Current transformer 33KV single phase 4 core 1200-1000-800-1-1-1-1A current transformer of ration accuracy class 0.5 ,burden as specified outdoor oil immersed self cooling, complete in all respect with accessories in accordance with specifications including first filling of oil.

Surge Arrester, 30 KV, 10 KA metal oxide gapless lightning arrestors, outdoor, station type single pole suitable for grounded neutral system complete 'in all respects, with accessories, insulating base, surge counter, etc. as per specifications.

Supply of Outdoor, 36kV 50Hz, Single Phase, Copper wound, Oil emersed self cooling Potential Transformer having ratio of 33000/110V, Station type, Accuracy: 0.5/3P, Core: 2Nos., Burden:100VA complete with accessories and terminal connectors including first filling of oil.

90KN Disc insulators ball and socket type, type 'A' porcelain brown glazed duly cemented at factory with MCI socket cap, forged steel ball pin and supplied with Phosphor bronze "W" split pin as per IS 731-1971 as amended upto date. Minimum failing load. Pin ball diameter 16 mm.Minimum Creepage distance 320 mm. Ferrous parts shall be galvanized as per relevant IS. Insulator shall be marked as per IS. Acceptance tests and routine tests shall be carried out as per IS by the manufacturer and test results shall be furnished by the manufacturer before supply of materials.

Disc insulators 90 KN 3-bolted type hardware fitting 90KN suitable for 11KV ball and sisket type dise insulators of 18mm pin, failing load of 90KN. Conform to IS-2486 Part 1-1993, 2486 Part 2-1989 as amended upto date

TC for LA to suit AAC Tarantulla Conductor

TC for Transformer HV Bushing to suit AAC Tarantulla Conductor

TC for PT to suit 2XAAC Tarantulla Conductor

TC for ISO to suit 2XAAC Tarantulla Conductor

TC for CT to suit 2XAAC Tarantulla Conductor

12c x 2.5mm2 ,armoured cable copper control cable (for isolator)

4c x 2.5mm2 ,armoured cable copper control cable (for isolator Ac )

4c x 2.5mm2 ,armoured cable copper control cable (for isolator DC)

19c x 2.5mm2 ,armoured cable copper control cable (for breaker)

4c x 2.5mm2 ,armoured cable copper control cable (for breaker AC)

4c x 2.5mm2 ,armoured cable copper control cable (for breaker DC )

(B) COST OF ERECTION

Isolators,33KV 2000 Amps,HDP,triple pole,outdoor,double break centre pole rotating type electrically and manually operated isolator for incomer with earth switch along with drive mechanism box,complete in all respects with accessories as per specification.

Isolator 33 kv, 630A,triple pole motor operated outdoor type isolator (with earth switch )

Circuit breaker outdoor type VCB circuit breaker 33KV (66KV),2000A 31.5KA 3 phase50Hz complete with all accessories breaker mounting GI stucture complete in all respect as per specifications.

AAC Tarantulla conductor of size 37,5.23mm for 33 KV

33 KV TEE connector to suit all Aluminium tarantula conductor size 37/5.23mm to all Aluminium tarantula conductor size 37/5.23mm on both Main & Branch way

Current transformer 33KV single phase 4 core 1200-1000-800-1-1-1-1A current transformer of ration accuracy class 0.5 ,burden as specified outdoor oil immersed self cooling, complete in all respect with accessories in accordance with specifications including first filling of oil.

Surge Arrester, 30 KV, 10 KA metal oxide gapless lightning arrestors, outdoor, station type single pole suitable for grounded neutral system complete 'in all respects, with accessories, insulating base, surge counter, etc. as per specifications.

Supply of Outdoor, 36kV 50Hz, Single Phase, Copper wound, Oil emersed self cooling Potential Transformer having ratio of 33000/110V, Station type, Accuracy: 0.5/3P, Core: 2Nos., Burden:100VA complete with accessories and terminal connectors including first filling of oil.

90KN Disc insulators ball and socket type, type 'A' porcelain brown glazed duly cemented at factory with MCI socket cap, forged steel ball pin and supplied with Phosphor bronze "W" split pin as per IS 731-1971 as amended upto date. Minimum failing load. Pin ball diameter 16 mm.Minimum Creepage distance 320 mm. Ferrous parts shall be galvanized as per relevant IS. Insulator shall be marked as per IS. Acceptance tests and routine tests shall be carried out as per IS by the manufacturer and test results shall be furnished by the manufacturer before supply of materials.

Disc insulators 90 KN 3-bolted type hardware fitting 90KN suitable for 11KV ball and sisket type dise insulators of 18mm pin, failing load of 90KN. Conform to IS-2486 Part 1-1993, 2486 Part 2-1989 as amended upto date

TC for LA to suit AAC Tarantulla Conductor

TC for Transformer HV Bushing to suit AAC Tarantulla Conductor

TC for PT to suit 2XAAC Tarantulla Conductor

TC for ISO to suit 2XAAC Tarantulla Conductor

TC for CT to suit 2XAAC Tarantulla Conductor

12c x 2.5mm2 ,armoured cable copper control cable (for isolator)

4c x 2.5mm2 ,armoured cable copper control cable (for isolator Ac )

4c x 2.5mm2 ,armoured cable copper control cable (for isolator DC)

19c x 2.5mm2 ,armoured cable copper control cable (for breaker)

4c x 2.5mm2 ,armoured cable copper control cable (for breaker AC)

4c x 2.5mm2 ,armoured cable copper control cable (for breaker DC )

(C) DISMANTALING

Dismentaling of 33 KV isolators, 3 pole, horizontal double break parallel mounting type mechanically gang operated with out earth switch

Dismentaling of 33 KV outdoor type Vaccume Circuit Breaker with structure material

Dismentaling of 33 KV outdoor type, current transformers,single pole

Dismentaling of 30 KV,10KA Lightening Arrestors,single pole,station type

Dismentaling of 33 KV outdoor type, Potential transformers,single pole

Dismentaling of 33 KV suspension & tension string with hardware & Disc Insulators

Dismantling of Control cable

(D) CIVIL WORKS

Earthwork in excavation by mechanical means (hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sq.m on plan) including disposal of excavated earth lead upto 50 m and lift upto 1.5m disposed earth to be leveled and neatly dressed including providing barricading, danger lighting guarding as directed in : (a )All kinds of soil

Providing & laying cement concrete 1:3:6 (1 cement: 3 coarse sand: 6 graded granitic or basaltic stone aggrt. 20 mm. nominal size) excluding cost of centering, shuttering and finishing in: (a) All works up to plinth level

Providing and laying in position (1:11/2:3) Reinforced cement conrete excluding the cost of centering, shuttering, finishing and reinfrocement (1 cement: 1½ coarse sand:3 graded stone agg 20mm nominal size) (a) All works up to plinth level

Centering & shuttering including Strutting, Propping & removal of forms for (i) Foundations, Footings, Bases for columns

Providing TMT steel reinforcement bars of (SAIL, TATA. VIZAG, JSW Steel Ltd.) (Confirming to IS 1786 of 1986) for RCC work (conforming to I.S. 1786 of 1986) including bending, binding & placing in position in all the floors along with the factory made precast concrete cover blocks of specified sizes whose compressive strength is not less than that of surrounding concrete in the structural member.

12mm cement plaster 1:4 (1 cement : 4 fine sand)

Erection of HDGI DP Structural material

Supply of HDGI DP Structural material