Substation & High Tension Switchgear (HT Panel, Compact Substation)
Substation & High Tension Switchgear (HT Panel, Compact Substation)
Category: Electric Panel Boards
Our High Tension Switchgear and Compact Substations (HT Panel, CSS) are engineered for 11kV and 33kV power utilities and industrial facilities. Equipped with certified vacuum circuit breakers (VCB) and internal arc protection per IEC 62271, they deliver maximum operator safety and fault interruption.
- 11kV and 33kV HT panels, Ring Main Units (RMU), and packaged compact substations (CSS)
- Fitted with certified VCBs and SF6 gas insulated units for reliable fault interruption
- Internal arc-tested design with comprehensive mechanical and electrical safety interlocks
- Manufactured per IEC 62271 for power utilities, solar farms, and heavy industrial facilities
General Construction Specifications (Common)
| Enclosure Material | CRCA (Cold Rolled Close Annealed) sheet steel; SS304/SS316 on request |
| Sheet Thickness | Load frame: 2.0-3.0 mm | Doors/panels: 1.6-2.0 mm | Gland plate: 2.0-3.0 mm |
| Enclosure Type | Floor mounted (free-standing) / Wall mounted / Rack mounted |
| Protection (IP) Rating | IP42 (indoor) / IP54 (dusty indoor) / IP55-IP65 (outdoor, weatherproof) |
| Busbar Material | Electrolytic grade Aluminium or Copper, tin/silver plated |
| Paint / Finish | 7-tank pre-treatment + powder coating, RAL 7032 / 7035 (siemens grey) standard |
| Standards Compliance | IS 8623 / IEC 61439-1 & 2, IS 5039 (bus ducts), IS 3427 as applicable |
| Operating Voltage | 415V AC (LT), 3-Phase 4-Wire + Earth, 50 Hz (custom voltages available) |
| Short Circuit Rating | 25 kA / 35 kA / 50 kA for 1 sec (design-dependent) |
HT Panel (High Tension Panel) / RMU
High voltage switchgear panel for incoming/outgoing HT feeders using vacuum circuit breakers (VCB) or ring main units, used at the utility/transformer interface of a facility.
| Voltage Rating | 11kV / 22kV / 33kV, 3-Phase, 50 Hz |
| Current Rating | 630A to 1250A busbar |
| Standard Sizes (H x W x D) | 2200-2400 x 800-1000 x 1500-1800 mm per panel |
| Breaking Device | Vacuum Circuit Breaker (VCB) / Ring Main Unit (RMU) |
| Insulation | Air insulated (AIS) / SF6 gas insulated (GIS) |
| IP Rating | IP4X (indoor switchgear room standard) |
| Typical Applications | Utility substations, large industries, commercial complexes with dedicated HT supply. |
Compact Substation / Package Substation (CSS)
Factory-assembled, ready-to-install substation combining HT switchgear, distribution transformer and LT panel in a single compact, often outdoor-rated enclosure.
| Voltage Rating | 11kV/22kV (HT side) to 415V (LT side) |
| Transformer Rating | 100 kVA to 2500 kVA (integrated) |
| Standard Sizes (H x W x D) | 2500 x 3000-5000 x 2000-2500 mm (skid/enclosure based) |
| Construction | Skid mounted, weatherproof steel enclosure |
| Components | HT RMU + Transformer + LT panel, fully wired |
| IP Rating | IP54 / IP55 (outdoor) |
| Typical Applications | Real estate townships, malls, industrial parks needing a compact dedicated substation. |
Ready to Discuss Substation & High Tension Switchgear (HT Panel, Compact Substation) for Your Project?
Connect with Nexus Engitech on whatsApp to discuss product specifications, sizes, applications and project requirements. Our products are available across cable glands, accessories, earthing, lightning protection and industrial electrical panels, with solutions developed to suit specific requirements.