SEES/SHIMLA-358/2023-24

Amount

A)132/66/33kV sub-station Jutogh

Dismantling of old 132kV CT's of 132/33kV transformer bank-I and placing/ stacking the same at a safe location in the sub-station along with erection, retrofitting, testing and commissioning of new 132kV CT's complete in all respect as per direction of Engineer-in-charge

Dismantling of old LA's of 132/33kV transformer bank-I and placing/ stacking the same at a safe location in the sub-station along with erection, retrofitting, testing and commissioning of new 132kV LA's complete in all respect and as per direction of Engineer-in-charge

Hiring of hydra for unloading, lifting and shifting of heavy EHV equipment within 132kV yard area as per direction of Engineer-in-charge

Providing, retrofitting, wiring and fixing of numerical non directional 3O/C+1E/F relay on 33kV khalini feeder with high set unit, 220VDC, TMs range 0.05 to 1.00 sec (in steps of 0.01 each), rated current = 1A, Range I = 40% to 200% ( in steps of 1% for O/C protection with IDMT characteristics, 10-100% in steps of 1% for E/F protection with IDMT characteristics compatible with IEC 61850 protocol, Make Ashida, Model:ADR241B complete in all respect and as per direction of Engineer in charge

Providing,retrofitting and fixing of silica gel breathers (main tank/conservator) in 132/33kV, 4x10.5 MVA transformer bank complete in all respect (Capacity: 4Kg, make: BHEL).

Providing,retrofitting and fixing of silica gel breathers of OLTC's in 132/33kV, 4x10.5 MVA transformer bank complete in all respect (Capacity: 0.5Kg, make: BHEL).

Providing, retrofitting, wiring and fixing of master trip relay with 4 NO+1NC, operting voltage: 220VDC, Make: Ashida complete in all respect as per direction of Engineer in charge

Providing & fixing of heavy duty equipment/conductor clamps along with replacement of rusted/damaged/worn out/ hotspot bearing & burnt clamps in 33kV yard complete in all respects.

33kV CT-Clamp (Wolf)

66/22kV sub-station Gumma

Complete overhauling of 66kV breakers of transformer II & 66kV Hulli along with repair & replacement of damaged/worn out parts [motor with gear box, leaf springs, limit switches, latches, tension springs, gears, rods, tripping & closing coils,auxiliary switches, indication lamps TNC Switches in local outdoor mechanism and C&R panel etc.] along with its alignment, greasing of various parts/gears, removal from lockout state, refilling of SF6 gas and rectification of wiring circuit from yard area to C&R panel concerned. Post overhauling the breaker shall be checked for proper C-O-C/O-C-O operation in (auto & manual mode) locally and from its C&R panel, proper charging of spring through motor & in manual mode as per satisfaction of Engineer-in-charge.

Troubleshooting and rectification of wiring circuit from 66kV Jutogh-Gumma breaker to their respective C&R panels for ensuring healthy operation of breaker from its C&R panel along with greasing of gears/parts of their operating mechanism. Post rectification the breaker shall be checked for proper C-O-C/O-C-O operation in (auto & manual mode) locally and from its C&R panel, proper charging of spring through motor & in manual mode as per satisfaction of Engineer-in-charge.

Providing, retrofitting, wiring and fixing of numerical non directional 3O/C+1E/F relay on 33kV khalini feeder with high set unit, 220VDC, TMs range 0.05 to 1.00 sec (in steps of 0.01 each), rated current = 1A, Range I = 40% to 200% ( in steps of 1% for O/C protection with IDMT characteristics, 10-100% in steps of 1% for E/F protection with IDMT characteristics compatible with IEC 61850 protocol, Make Ashida, Model:ADR241B complete in all respect and as per direction of Engineer in charge.

Providing & fixing of heavy duty equipment/conductor clamps along with replacement of rusted/damaged/worn out/ hotspot bearing & burnt clamps in 22kV yard complete in all respects.

22kV CT-clamp (as per sample)

VINAY ENTERPRISES

ANUSHREE ELECTRICAL ENGINEERS PRIVATE LIMITED