ABB ZX2 - Page 88

88 ZX2 GAS-INSULATED MEDIUM VOLTAGE SWITCHGEAR
Connecting the voltage transformers
To connect the voltage transformers, slide the
locking plate
1
upwards and pull the actuating
plate
2
to the rear until the stop is reached.
Allow the locking plate to slide into the
appropriate latching slot
4
in the actuating
plate.
Important note
When the locking plate engages in the
latching slot of the actuating plate, the
current carrying capacity of the isolating
device is ensured.
Secure the isolating device with a
padlock.
Grounding the voltage transformers
To ground the voltage transformers, slide the
locking plate
1
upwards and pull the actuating
plate
2
to the front until the stop is reached.
Allow the locking plate to slide into the
appropriate latching slot
4
in the actuating
plate.
Important note
When the locking plate engages in the
latching slot of the actuating plate, the
dielectric strength of the isolating
device is ensured.
Secure the isolating device with a
padlock.
—
Fig. 5.8.2.2:
Operation of the
voltage transformer
isolating device
1
4
2