MV switchgear
SBC ABB SBC AIR · Incomer or feeder with vacuum circuit breaker
ABB UniSec Air component
Incomer or feeder unit with vacuum circuit breaker.
Description
The SBC unit is the incomer or feeder unit with vacuum circuit breaker of the modular family, based on the ABB UniSec Air switchgear. With the withdrawable circuit breaker the compartmentation is of the PM type.
Rating plate data of the QMT range
Electrical characteristics
- Rated voltage
- 24 kV
- Lightning impulse withstand voltage
- 125 kV
- Power-frequency withstand voltage
- 50 kV · 1 min
- Rated frequency
- 50 Hz
- Rated busbar current
- 630 A
- Short-time withstand current
- 16 kA / 1 s
- Peak withstand current
- 40 kA
Safety and insulation
- Internal arc withstand
- IAC AFLR 16 kA / 1 s
- Degree of protection
- IP3X
- Insulation
- air · no fluorinated gas
Values common to the range. The specifications of this product depend on the plant diagram.
Other QMT products
Back to SF6-free medium-voltage switchgear
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