H.T Switchgear (VCB / LBS) – 11kV & 33kV Medium Voltage Panels | Integrated Power & Engineering
At Integrated Power & Engineering, we supply and integrate high-performance H.T Switchgear solutions for 11kV and 33kV medium-voltage networks—designed to ensure safe switching, fast fault protection, and dependable power control across industrial, commercial, and utility installations. Our switchgear portfolio includes VCB (Vacuum Circuit Breaker) panels and LBS (Load Break Switch) panels/RMU solutions, engineered with rugged construction, modern insulation design, and reliable interlocking for long-term operation in Bangladesh’s demanding site conditions.
Whether your requirement is a complete substation lineup (Incoming + Transformer Feeder + Outgoing + Bus Coupler) or a compact distribution solution, we design switchgear systems that enhance network stability, reduce downtime, and protect valuable electrical assets.
Product Overview: Reliable 11kV & 33kV Power Control
H.T switchgear is the primary control and protection system used to switch, isolate, and protect medium-voltage feeders, transformers, and critical loads. In modern power distribution, a strong switchgear design ensures:
- Secure fault interruption and isolation
- Safe operation through interlocks and protection logic
- High availability for critical facilities
- Seamless expansion and easy maintenance access
Integrated Power & Engineering offers project-tailored lineups for 11kV and 33kV substations, supporting both new installations and upgrade projects.
Key Specifications (Technical Data)
Voltage Class
- 11kV and 33kV (custom voltage ranges available up to project requirements)
Switchgear Type Options
- VCB (Vacuum Circuit Breaker) Switchgear – for strong fault interruption and feeder protection
- LBS (Load Break Switch) Switchgear / RMU Solutions – for compact switching under normal load conditions
Rated Current (Typical Range)
- VCB Panels: up to 2500A
- LBS Panels/RMU: up to 630A
Short Circuit / Breaking Capacity
- VCB Interrupting Capacity: up to 40kA (selection based on system fault level)
- Short-time withstand: as per project requirement and coordination study
Operation Options
- Manual / Motorized / Fully automated (SCADA-ready options available based on project scope)
Compliance & Standards
Built to meet applicable requirements aligned with:
- IEC, ANSI, and IS standards
- Utility regulations and approved project specifications
Standard Lineup Configuration (Typical for 11kV & 33kV)
Our switchgear lineups are commonly configured as:
✅ Incoming Panel (VCB/LBS)
- Receives supply from utility or upstream source
- Provides primary isolation and protection interface
- Supports metering and protection integration (as required)
✅ Transformer Feeder Panel (VCB/LBS)
- Dedicated protection and switching for the power transformer
- Helps isolate transformer faults and supports safe maintenance
- Designed to match transformer rating and protection scheme
✅ Outgoing Feeder Panel(s) (VCB/LBS)
- Distributes power to downstream feeders (industrial loads, buildings, MCCs, sub-distribution points)
- Supports protection coordination to minimize outage impact
- Expandable lineup for future load growth
✅ Bus Coupler Panel (VCB)
- Connects two bus sections for operational flexibility
- Improves system reliability by enabling sectionalizing and maintenance without full shutdown
- Enhances redundancy for critical networks (hospitals, data centers, continuous process plants)
Key Features & Performance Advantages
1) Intelligent Protection & Fast Fault Interruption
Our VCB switchgear ensures rapid fault clearing, protecting:
- Transformers and cables
- Switchboards and MV feeders
- Industrial equipment and sensitive systems
- Personnel and operational safety
2) Rugged Construction & Long Service Life
Built with high-quality insulation design, robust panel structure, and reliable mechanism components to deliver stable performance under:
- High humidity and temperature
- Dusty industrial environments
- Frequent switching cycles and continuous duty
3) Compact Modular Design & Easy Integration
Our panels are space-optimized and modular, enabling:
- Smooth integration into existing substations
- Reduced redesign during upgrades
- Easy maintenance access and clear cable termination layout
- Flexible expansion for additional outgoing feeders
4) Enhanced Safety with Interlocks & Alarm Interface
Safety features support controlled operation and reduced risk:
- Mechanical/electrical interlocking
- Indications for breaker position and panel status
- Fault alarm interfacing and protection relay compatibility (project-based)
5) Low Maintenance VCB Technology
VCB systems deliver strong advantages:
- No oil handling and no SF₆ gas
- High mechanical endurance
- Lower lifecycle cost through reduced maintenance intervals
Switchgear Options Explained
Vacuum Circuit Breaker (VCB) Switchgear
Best for: Incoming, Transformer Feeder, Outgoing Feeder, and Bus Coupler duties where high fault interruption is required.
Typical Ratings
- Voltage: 11kV / 33kV (up to 36kV class)
- Current: Up to 2500A
- Breaking: Up to 40kA
- Operation: Manual / Motorized / Automated
Key Benefits
- Strong fault interruption and feeder protection
- Minimal maintenance and high reliability
- Environment-friendly operation (no oil, no SF₆)
Load Break Switch (LBS) Switchgear / RMU
Best for: Distribution switching and compact ring networks under normal load switching.
Typical Ratings
- Voltage: 11kV to 33kV
- Current: Up to 630A
- Duty: Normal load switching
- Operation: Manual / Motorized / Automatic
Key Benefits
- Compact, space-saving footprint
- Reliable disconnection for distribution networks
- Ideal for RMUs, backup systems, and distribution panels
Applications
Integrated Power & Engineering HT switchgear solutions are ideal for:
- Utility Grid Substations (11kV/33kV)
- Industrial Plants & Manufacturing
- Commercial Buildings & Real Estate Developments
- Hospitals, Airports, Data Centers
- Renewable Energy Integration (Solar/Wind MV yards)
- Infrastructure Projects (Railway, Metro, Tunnels)
Why Choose Integrated Power & Engineering?
- Complete 11kV & 33kV switchgear solutions (VCB/LBS)
- Custom lineup design based on SLD and protection requirement
- Compliance-ready build aligned with IEC/ANSI/IS standards
- Safety-first engineering with interlocks and protection compatibility
- Compact modular panels for space-constrained substations
- Reliable local support for Bangladesh projects with global-standard design
