3 Description
3.1.6 Arc Quenching Medium SF
6
a SF
6
-filling gauge pressure (nominal density line)
b Signal
Loss of SF
6
c
General lockout SF
6
e Liquefaction
curve
Fig. 1
SF
6
-filling and operating values of density
monitor (gauge pressure)
Filling weight (complete circuit-breaker)
44.6 kg
Volume (complete circuit-breaker)
966 dm3
SF
6
nominal filling gauge pressure at +20°C
6.0 bar
Monitoring of the SF
6
Signal
Loss ofSF
6
at 20°C
General lockout SF
6
at 20°C
5.2 bar 5.0 bar
Filter material (complete circuit-breaker)
7.5 kg
Table 4 Arc quenching medium SF
6
3.1.7. Auxiliary Switch
Rated voltage
250 V
DC
220 V
DC
125V
DC
110V
DC
60V
DC
48V
DC
Rated normal current
10A
10A
10A
10A
10A
10A
Switching capacity
Resistive load
2.5 A
2.5 A
4A
5A
9A
10A
Resistive-inductive load
(time constant x = 20 ms)
1,2 A
2A
2.5 A
4A
7A
9A
Table 5
Auxiliary switch
Auxiliary switch contact class 1
11
