Interlock and remote control facilities in Jyoti make breakers of ABD sub area of Sohagpur Area

Interlock and remote control facilities in Jyoti make breakers of ABD sub-area of Sohagpur Area, SECL

I) Interlock and remote control facilities in Jyoti make breakers of Damini UG mine - Part A - Overhauling of 33KV MOCB - Comprehensive overhauling of 33 KV MOCB poles and operating mechanism including complete dismantling, cleaning, replacement of all-weather gaskets and O-rings (seal kit), alignment and calibration of moving and fixed contacts, andreplacement of transformer oil in the oil chamber.

Supply and installation of closing coil (48V DC) suitable for 33 KV MOCB.

Supply and installation of tripping coil (48V DC) for breaker tripping operation.

Supply and replacement of trip latch/catch assembly with proper alignment and mechanical testing.

Supply and replacement of moving contact assembly ensuring proper contact pressure and alignment.

Supply and installation of materials required for rewiring and testing of 33 KV breaker, including dressing of control panel,testing of IDMT relay, and replacement of associated hardware (nuts, bolts, and terminals).

Part B - Provision of Interlocking Arrangement between Breaker and Isolator - Supply and installation of trip coil assembly for interlocking operation

Supply and installation of auxiliary switch (3NO + 3NC) with crank and limit switch for isolator interlocking.

Supply and installation of safety key lock mechanism for isolator interlock system.

Complete wiring inside isolator panel with ferrule tagging, termination with lugs, and proper numbering; includes welding, painting, and erection with necessary materials.

Installation, testing, and commissioning of interlocking system including fabrication of steel enclosure with terminal lock and key as per site requirement.

Supply and installation of indicating lamps for breaker and isolator status indication.

Supply of control cable 4×2.5 sq mm copper conductor,PVC insulated.

Laying of control cable 4×2.5 sq mm with suitable dressing, clamping, and terminations.

Supply of single-core control wire 1.5 sq mm copper conductor, PVC insulated.

Part C - Supply and Installation of RCCB 300 Amps Control Panel - Supply and installation of RCCB 300 Amps, 440V

II) Interlock and remote control facilities in Jyoti make breakers of Bangwar UG mine - Part A - Overhauling of 02 Nos 33 KV VCB 800 Amps Jyoti Make (for VCB-1) - Shunt trip coil Assly.

Main Closing coil

Bridge Rectifier

LED indication lamp with holder

HRC Fuse Link 2 Amps

HRC Fuse Link 6 Amps

Complete motor set for remote operation of breaker from panel with complete wiring

Testing with labour charges, new wiring lugs and dressing of VCB, testing of relays with replacement of hardware and nut, bolts complete with denting and painting.

Part A - Overhauling of 02 Nos 33 KV VCB 800 Amps Jyoti Make (for VCB-2) - Master Trip relay High- speed tripping VAIS-13 with Flag 30 V DC contact 2 No+ 2 NC S/R case size 1/4N Vertical

Terminal Block

Bridge Rectifier

Ammeter

Voltmeter

Complete motor set for remote operation of breaker from panel with complete wiring

Testing with labour charges, new wiring lugs and dressing of VCB, testing of relays with replacement of hardware and nut, bolts complete with denting and painting.

Part B - Provision of Interlocking Arrangement between Breaker and Isolator - Supply and installation of trip coil assembly for interlocking operation

Supply and installation of auxiliary switch (3NO + 3NC) with crank and limit switch for isolator interlocking.

Supply and installation of safety key lock mechanism for isolator interlock system.

Complete wiring inside isolator panel with ferrule tagging, termination with lugs, and proper numbering; includes welding, painting, and erection with necessary materials.

Installation, testing, and commissioning of interlocking system including fabrication of steel enclosure with terminal lock and key as per site requirement.

Supply and installation of indicating lamps for breaker and isolator status indication.

Supply of control cable 4×2.5 sq mm copper conductor,PVC insulated.

Laying of control cable 4×2.5 sq mm with suitable dressing, clamping, and terminations.

Supply of single-core control wire 1.5 sq mm copper conductor, PVC insulated.

Part C - Supply and Installation of RCCB 300 Amps Control Panel - Supply and installation of RCCB 300 Amps, 440V

Part D - Supply and Installation of WTI and OTI for 02 Nos, Transformer 33kv/3.3kv, 2000kva, MCB switch gear make C 33kv/3.3kv, 2500kva, andrew yule make - Providing and fixing of WTI

Providing and fixing of OTI

Total impact of GST for the purpose of CTC

Please Enable Macros to View BoQ information