HT & LT Panels



HT & LT Panels


Service provider for repair, maintenance & servicing of H.T. switchgear (up to 33 KV), L.T. switchgear and power transformer, protection relay testing,Installation of earthing, control panel painting work. Checking all connections, Checking proper earthing connections, Tightening cable connections, Lubricating moving parts, Testing, All ON or OFF operations,

Vacuum Circuit Breaker (VCB)


• Cleaning of Vacuum Circuit Breaker with CRC-226
• Removal of old grease and re-greasing the same with recommended grease
• Check condition of SIC Contacts
• Checking condition and alignment of jaw Contact
• Checking and proper tightening of hardware
• Checking proper closing of all poles together
• Checking of breaker tripping through push button
• Checking and adjusting gap between hylam sheet and side plate
• Checking motor operation in case of EDO.
• Checking of auxiliary contacts continuity proper change over
• Checking presence of all circlips
• Checking IR between phase – phase (VCB closed condition)
• Checking IR between phase – earth (VCB closed condition)
• Checking IR between phase – earth (VCB in Open condition)
• Any faculty spare replace by new one, which will be charged extra.

Oil Circuit Breaker (OCB)


• Cleaning of Oil Circuit Breaker with CRC-226
• Removal of old grease and re-greasing the same with recommended grease
• Check condition of SIC Contacts
• Checking condition and alignment of jaw Contact
• Checking and proper tightening of hardware
• Checking proper closing of all poles together
• Checking of breaker tripping through push button
• Checking and adjusting gap between hylam sheet and side plate
• Checking motor operation in case of EDO.
• Checking of auxiliary contacts continuity proper change over
• Checking presence of all circlips
• Checking IR between phase – phase (OCB closed condition)
• Checking IR between phase – earth (OCB closed condition)
• Checking IR between phase – earth (OCB in Open condition)
• Any faculty spare replace by new one, which will be charged extra

LT Panel: We do following during regular maintenance of LT Panel


• Cleaning of Panel Breaker with CRC-226
• Check condition of Bus bars
• Checking condition and alignment of jaw Contact
• Checking and proper tightening of hardwares
• Checking of breaker tripping through push button
• Checking motor operation in case of EDO.
• Checking of auxiliary contacts continuity proper change overs
• Checking presence of all circlips
• Checking IR between phase – phase (ACB closed condition)
• Checking IR between phase – earth (ACB closed condition)
• Checking IR between phase – earth (ACB in Open condition)
• Checking of Contactor NO NC Point
• Checking of ad on block NO NC Point
• Checking of Control Wiring
• Checking of Thimble Tightness
• Checking of MCCB
• Checking o MCB
• Any faculty spare replace by new one, which will be charged extra.