Pluton has successfully completed modernisation of two traction substations, Wacława and Zapolska More details
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27.5 kV AC Switchgears

Description Unit Value
Rated Operating Voltage (Line) kV 27.5
Maximum Operating Voltage (Line) kV 30
Current Rated Frequency Hz 50
Main Circuit Rated Current А 630; 1250
Busbars Rated Current А 1250
Vacuum Circuit-Breaker Short-Time Electrodynamic Current kА 50
Short-Time Thermal Current:
- Vacuum circuit breaker
- Earthing Switch		 kА/s 
 20/3 
20/1
Vacuum Circuit-Breaker Rated Opening Current kА 20
Power Circuit-Breaker Total Break Time, max. s 0.07
One Minute Power Frequency Test Voltage kV 70
Lightning Impulse Voltage kV 170
Poles Number - 1/2/3
Overall dimensions (WхHхD)   900 х 2600 х 1500