33 KV VCB PANELS (INDOOR)
IEC 62271/200 compliant 33 kV VCB switchgear for safe, reliable primary distribution with tested short-circuit withstand and internal-arc safety. Integrates metering, numerical relays, and SCADA for modern substations and industrial plants
Standard: IEC 62271/200, internal-arc safe
Use: Reliable 33 kV incomer/feeder control and transformer protection (primary substations, utilities, large campuses)
Features: 36 kV class insulation, short-time withstand up to 25/31.5 kA for 1–3 s, Form-4 metal-clad construction, numerical relays, advanced metering, SCADA-ready
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Product Description
Swastik’s 33 kV Vacuum Circuit Breaker (VCB) Panels (Indoor) are IEC 62271200 compliant, metalclad switchgear assemblies engineered for primary distribution in substations and large industrial plants. Designed with internalarc considerations, Form4 metal partitions, and robust busbar systems, they deliver high uptime, safer maintenance, and seamless integration with numerical protection, advanced metering, and SCADA.
* Voltage class: 36 kV insulation, 33 kV operating; 50 Hz.
* Short-time withstand: up to 25/31.5 kA for 1–3 s (project-specific).
* Safety: IAC options (AFL/AFLR), pressure-relief ducts, visible-break earthing, mechanical/key interlocks.
* Construction: air-insulated, metal-clad PM partitions, IP4X -external/IP2X internal; segregated busbar, breaker, cable, and LV compartments.
Technical Specifications
Comprehensive technical details and performance parameters
| Parameter | Specification |
|---|---|
| Application | Protection & Control of TRF. Feeder |
| Reference Standards | IEC 62271 – 1 & 200 |
| Operation Voltage | 36 KV |
| Operational Current | 630 A, 800 A, 1250 A, 1600 A, 2000 A, 2500 A 3100 A |
| Phase / Frequency | 3 PH / 50 HZ |
| Insulation Level | 70 KV rms / 170 KV Peak |
| Short Time Rating | 31.5 KA For 3 Sec. |
| Ingress Protection | IP-4X / IP 55 |
| Temperature Rise | 85 Degree Centigrade Max. |
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FAQ'S
The 33 kV VCB panels are engineered to IEC 62271200 with options for Internal Arc Classification (IAC AFL/AFLR), appropriate IP levels, and documented routine/FAT test reports for consultant and utility approvals.
Typical configurations support 36 kV insulation, 33 kV operation, shorttime withstand up to 25/31.5 kA for 1–3 seconds, and feeder currents up to 1250 A or projectspecific ratings on request.
Yes—panels support withdrawable vacuum breakers, numerical protection relays (OCR/EF/SEF, breakerfailure), multifunction energy meters, and PLC/SCADA connectivity via common industrial protocols for remote control and event logging.
The design uses Form4 metal partitions, segregated busbar/breaker/cable/LV compartments, visiblebreak earthing, mechanical/key interlocks, and arcpressure relief paths to enable safer isolation and maintenance