2.2 Control and operating
devices
The drive mechanism is designed
on principle for manual charging of
the energy storing device (closing
spring).
The drive can be equipped with
additional operating and control
devices which are characterized
according to the LV wiring diagram
for the whole switchboard.
Component fitting options:
Motor
•
for charging the energy-storing
device (closing spring)
•
for actuation of the disconnector
and earthing switch
Closing release
•
1 unit
Opening release
•
max. 2 units
Secondary release
(CT-powered release)
•
max. 2 units
•
(Maximum equipment – opening
release and secondary release,
3 units in total)
Undervoltage release
•
1 unit
Blocking coil
Blocking coils prevent the circu-
it breaker from being closed and
opened via the mechanical push-
buttons “ON“ or “OFF“, as well as
actuation of the interlocking levers
of the disconnectors and earthing
switches.
Operating counter
•
The operating counter indicates
the number of switching opera-
tions.
8
Power consumption, solenoids and motor
Power consumption
DC
AC 50/60 Hz
approx. [W]
approx. [VA]
Closing release
160
160
Opening release with
auxiliary spring energy store
25
25
Undervoltage release
15
15
CT-powered release
–
12
Blocking coil
12
12
Motor
200 - 250
200 - 250
Please enquire at the manufacturer’s for details of the motor’s starting current.
The auxiliary voltage data is required to this effect.
Times for solenoids and motor
Minimum command time
„OFF“ el. tripping
[ms]
50
Minimum command time
„ON“
[ms]
20
Motor charging time
[s]
≤ 12