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Description
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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