CO7 Technologies VSB indoor and outdoor vacuum air insulated substation circuit breakers combine the proven medium voltage circuit breaker technology from Schneider Electric with our industry-leading design. Engineered and built in our manufacturing facility in Montreal (QC), Canada, the VSB Station Breaker meets or exceeds relevant IEEE/ANSI standards for indoor and outdoor circuit breakers and features arc-resistant type 2B construction on the 1200 – 2500A models.
Standards features
- Type FK2 operating mechanism
- Trip and close coil
- Visual circuit breaker status window
- Operation counter
- Mechanical position indicator
- External manual trio handle
- Necessary terminal and wairing
- Fused knife-switch control voltage disconnect
- Porcelain dry-type roof bushings
- Bolted-welded cabinet construction
- Permanent lifting eyes (4)
- Adjustable galvanized legs (4)
- Corrosion-resistant power
- Cabinet heaters to prevent condensation
- Additional heaters for -50ºC
- Filtered ventilation
- CSA rain-tested design
- Reduced footprint
- Internal arc type 2B as per IEEE C37.20.7 (12,5kA @1s, [email protected], [email protected])
- Capacitive current switching tests C2 (600A)
Technical Characteristics
Rated Voltage
Up to 29.8kV
Power frequency withstand Voltage
60 kVrms
Lightning Impulse leve
150kVp
Short-circuit interrupting current (sym.)
12.5kA, 25kA, 31.5kA
DC component (asymmetry)
45ms, 75ms
Short-circuit time withstand current (1s)
25kA, 31,5kA
Nominal Current
1200A, 2000A, 2500A
Operating Temperatures
50 to 40⁰C
Standard operating duty
O-15s-CO-3min-CO
Maximum interrupting time
3.5 cycles
Altitude
1000 m
Standards
The VSB meets the following standards:
- IEC 62771-100: High-voltage switchgear and controlgear- Part 100: alternating-current circuit-breaker
- IEC 62271-1: High-voltage switchgear and controlgear- Part 1: Common specifications
- IEEE C37.20.7: Guide for testing metal-Enclosed Switchgear rated Up to 38 kV for Internal Arcing Faults
- CSA C22.2 NO 94 : special-purpose enclosures industrial products
- IEEE C37.082: Standard Methods for the Measurement of Sound Pressure Levels of AC Power Circuit Breakers
Seisimic
When specified, the VSB Station Breaker can maintain structural intergrity during and after a seisimic disturbance, as per IEEE 693 and TET-APG-N-0001-2013 (Hydro-Quebec).
Optional equipment and custom solutions
- Terminal connectors for bushings
- Special Current transformers class
- Second trip coil
- Undervoltage trip device
- Seismic capability (IEEE 693 high level)
- Polymer bushings