Disconnect F6; Procedure - Landis+Gyr ZMQ202 User Manual

4.6

Disconnect f6

4.6.1

Procedure

Danger
Danger
H 71 0200 0215 f en - ZMQ202 / ZFQ202 - User Manual
Installation / De-installation
Dangerous voltage on conductors
Dangerous voltage is present on the conductors that the meter is
connected to.
Contact with the conductors when under voltage will result in severe
personal injury or death.
The conductors must not be under voltage when connecting or
disconnecting the meter.
Installation and de-installation of the meter must only be performed by
qualified meter installers, with strict adherence to the utility's safety
regulations.
Dangerous voltage produced by current transformers
Dangerous voltage is produced by the current transformers when the
secondary circuit is broken while current is flowing in the primary.
Contact with the transformers when under voltage will result in severe
personal injury or death. The high voltage produced will destroy the
transformers.
The current transformer secondary circuit must be short-circuited before
de-installing the meter. Installation and de-installation of the meter must
only be performed by qualified meter installers, with strict adherence to the
utility's safety regulations.
1. Short-circuit the current transformers using the provided assembly.
2. Switch off the voltage. The phase voltage display (L1 L2 L3)
disappears.
3. Switch off tariff inputs and synchronisation input. Check if the
corresponding indicators disappear from the display.
4. Switch off the voltage for the additional power supply.
5. Check that all connections are free from voltage.
6. Remove the two utility's seals on the terminal cover, release the two
screws and remove the terminal cover.
7. Loosen the terminal screws and remove the wires of the measuring
voltage and current.
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