33kV Vacuum Circuit Breaker (VCB) Switchgear Panel
Quick Product Summary
- Model: PP-SW-33VCB
- Capacity: 1250A - 2500A | Breaking: 26.3kA / 31.5kA
- Standard: IEC 62271-200, IEC 62271-100, BNBC
- Manufacture: Positive Power Gazipur
Technical Sales Inquiry:
Direct Phone: +880 1712-345678
Email: info@positivepowerbd.com
Engineering Overview & Scope
The Positive Power 33kV Vacuum Circuit Breaker (VCB) switchgear cubicle represents the pinnacle of medium-voltage protection and distribution. Designed for 33kV utility intake substations, it features metal-clad compartmentalization, isolating the busbar, circuit breaker, cable termination, and low-voltage relay chambers.
Equipped with globally renowned vacuum interrupters, microprocessor-based numerical protection relays, capacitive voltage indicators, and motorized rack-in/rack-out mechanisms for operator safety.
Key Engineering Advantages
- Metal-clad 4-compartment internal segregation (Form 4b)
- Fully withdrawable vacuum circuit breaker truck
- Fail-safe mechanical and electrical interlocks preventing operational error
- Internal Arc Classified (IAC AFLR 31.5kA 1s) for operator safety
- Microprocessor numerical relays (Schneider / ABB / Siemens)
Primary Industrial Applications
- ▪ 33kV Industrial Intake Substations
- ▪ National Grid Interconnection & IPP Power Plants
- ▪ Heavy Manufacturing & Steel Rolling Mills
- ▪ Utility Distribution Substations (DPDC, DESCO, BPDB, WZPDCL)
Comprehensive Technical Specifications
Manufactured and rigorously tested according to international IEC standards and certified by BUET (Bangladesh University of Engineering and Technology).
| Technical Parameter | Engineering Specification |
|---|---|
| Rated Voltage | 36 kV |
| Rated Frequency | 50 Hz |
| Rated Normal Current | 1250 A / 2000 A / 2500 A |
| Short-Time Withstand (3s) | 26.3 kA / 31.5 kA |
| Impulse Withstand Voltage (BIL) | 170 kV Peak |
| Power Frequency Withstand | 70 kV rms / 1 min |
| Ingress Protection | IP4X (Enclosure) / IP2X (Internal partitions) |
🔬 Routine & Type Testing
100% factory routine tests including Megger insulation, dielectric breakdown, turns ratio, load/no-load losses, and temperature rise per IEC 60076.
🏛️ BUET Tested & Endorsed
Independently verified and type-tested through Bangladesh University of Engineering and Technology (BUET) electrical testing laboratories.
🛡️ 18-Month Warranty & Support
Full warranty backing with 24/7 on-site emergency technical support, genuine OEM spare parts, and annual preventive maintenance contracts.
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