Description
42/214 Revision 06 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DB10 • 864-5091.9
18 Technical data
18.1 Electrical data
Complete switchgear
18.2 Vacuum circuit-breaker
Operating times
Number of
operating cycles
Closing time The interval of time between the initiation (command) of the closing operation and
the instant when the contacts touch in all poles.
Opening time The interval of time between the initiation (command) of the opening operation and
the instant when the contacts separate in all poles.
Arcing time The interval of time from the first initiation of an arc and the instant of final arc extinction in
all poles.
Break time The interval of time between the initiation (command) of the opening operation and the
instant of final arc extinction in the last-pole-to-clear (= opening time and arcing time).
Close-open contact time The interval of time - in a make-break operating cycle - between the instant when the contacts
touch in the first pole in the closing process, and the instant when the contacts separate in all
poles in the subsequent opening process.
Rated
voltage kV 12 24 36 40.5
frequency Hz 50/60
General Rated short-duration
power-frequency
withstand voltage
kV 28 50 70 85
Rated lightning impulse
withstand voltage
kV 75 125 170 185
Disconnector Rated short-duration
power-frequency
withstand voltage
kV 32 60 80 90
Rated lightning impulse
withstand voltage
kV 85 145 195 220
short-circuit breaking current, max. kA 40
short-time withstand current 3s, max. kA 40
short-circuit making current, max. kA 104
peak withstand current, max. kA 104
normal current of busbar, max. A 5000
normal current of feeders, max. A 2500
Closing time Closing solenoid <95 ms
Opening time 1st shunt release <65 ms
2nd shunt release <55 ms
Undervoltage release <55 ms
Arcing time at 50 Hz <15 ms
at 60 Hz <12 ms
Break time
at 50 Hz
1st shunt release <80 ms
2nd shunt release <70 ms
Undervoltage release <70 ms
Dead time 300 ms
Total charging time <15 s
Rated normal current 10000 operating cycles
30000 operating cycles (option)
Short-circuit breaking current 50 operating cycles
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