B(PT)+PT+B+B+BS+B+B+PT+B(PT)
Multi-CB combination with Busbar Sectioning/PT Unit
Application Scenarios
Suitable for switching stations or distribution rooms adopting single busbar sectionalized scheme with dual power supply access.
Applicable to sites requiring high power supply reliability with dual power access and single busbar sectioning; two busbar sections operate in isolation. When one feeder loses voltage, the bus tie cubicle can supply power to the de-energized busbar and improve system power supply reliability.
Can be installed in distribution rooms and outdoor switch cabinets.
Core Features
Manual or automatic dual-power switching reduces outage duration; PT supplies measurement voltage and secondary-circuit operating power
Supports busbar extension for future capacity expansion.
Breaks short-circuit currents and minimizes outage areas
Configurable with integrated protection or automation terminals for smart distribution automation
Main Parameters
| Rated Voltage | 12kV & 24kV |
| Rated Current | 630A & 1250A |
| Rated Short-circuit breaking Current | 20kA / 25kA |
| Dimension (W × D × H) | 12kV: 5470×800×1640 24kV: 6640 ×850×1890 Dimensions without secondary top box Note: Take 630A product as an example |
| Design life | 40 years |
| Optional Accessories | • Surge arresters • EKL4 short-circuit & earth fault indicator • Electrical interlocks and key interlocks to prevent parallel operation of two power sources • Tripping coil 1: AC230V / DC48V / DC110V • Tripping coil 2: Under-voltage release coil, AC230V |
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