The switching, protection and distribution layer of your substation — MV line-ups, ring main units for distribution networks, and the LV boards and ATS panels that feed the final loads.
Air-insulated metal-clad and metal-enclosed switchgear with vacuum circuit breakers, protection relays, CTs / VTs and metering — line-ups built panel by panel from your SLD, for incomer, feeder, bus-coupler and transformer protection duties.
Compact RMUs for ring and radial distribution networks: SF6-insulated or solid-insulated, in common 2-way, 3-way and 4-way functional combinations, extensible types available. Cable boxes and fault indicators per project requirement.
Main and sub distribution boards, automatic transfer switch (ATS) panels, capacitor compensation banks and control panels — form and rating per project specification, wired and tested before dispatch.
| MV rated voltage | 12 / 17.5 / 24 / 36 / 40.5 kV classes (typical) |
|---|---|
| MV rated current | 630 A / 1,250 A busbar ratings typical; feeder ratings per SLD |
| Breaking devices | Vacuum circuit breakers, load-break switches and switch-fuse combinations |
| RMU insulation | SF6 gas-insulated or solid-insulated, sealed for life designs |
| Protection | Numerical or electronic protection relays, settings per project protection study |
| LV boards | 400 / 415 V, form 1 to form 4 construction, ATS and capacitor banks on request |
| Standards | MV assemblies to IEC 62271 series; LV assemblies to IEC 61439 |
| Testing | Routine tests per panel, wiring and functional checks, test reports with the delivery documents |
Typical ranges for orientation only. Panel schedules are always built from the project SLD — send the drawing and we return a panel-by-panel proposal.
Switchgear is quoted from drawings, not from guesses. Send your single-line diagram and we come back with the panel schedule, breaker and relay selection, and any conflicts with the transformer and LV side flagged in the gap review.
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