Installing The Voltage Transformers - Siemens 8DA10 Series Installation And Operating Instructions Manual

Installation
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Installing the voltage transformers

Hazardous voltage.
Will cause death, serious injury and property damage.
Always observe the Five Safety Rules:
➭ Isolate.
➭ Secure against reclosing.
➭ Verify safe isolation from supply.
➭ Earth and short-circuit.
➭ Cover or barrier adjacent live parts.
Hazardous voltage
Can cause death, injury or considerable property damage.
The metal coating on the outside of voltage transformers is connected to earth potential.
If the metal coating is damaged, the voltage transformer is not safe-to-touch anymore.
➭ Do not damage the metal coating of voltage transformers.
Internal arcing and explosion hazard
If a voltage transformer is short-circuited, there will be a considerable current flow.
This considerable current flow implies the risk of internal arcing, and the voltage
transformer can explode and produce a fire. Death, serious injury and considerable
property damage can be the consequence.
➭ Never short-circuit voltage transformers on the secondary side.
➭ Check the voltage transformer circuits from the voltage transformer to the secondary fuse
or short-circuit protective device for short circuits.
➭ Check correct operation of the existing protective devices in the voltage transformer
secondary circuit.
Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • 861-9601.9
DANGER
DANGER
WARNING