17
Press the overload reset push-button to arm the trip circuit. The indicator lamp in the reset push-
button will go out, indicating that the circuit is armed.
Check that the primary trip circuit breaker is closed (in the up position) and the external interlock
circuit is closed, or the shorting plug is fitted.
Set the desired overload mA trip level.
Before commencing testing ensure that the regulator is in the fully anticlockwise position.
Turn the key switch to output enabled.
Press the HV ON push-button – the output is now live. The HV OFF lamp will extinguish and the
HV ON lamp will be lit. The output voltage can now be increased to the desired level as indicated
on the kV meter.
In the event of a test object failure the HV output will be automatically switched off by the
protection system. Depending on the level of the fault, either the electronic trip or the primary
trip circuit breaker will operate.
When the test is completed, turn the regulator control knob fully anti-clockwise and switch off
the HV output and then the main supply key switch.
After the test, remove the key from the control unit and re-apply the earth stick to the HV
transformer HV connection. Before approaching the test object always ensure the HV
connection is grounded using the earthing stick provided.
Содержание KV50-20D mk2
Страница 11: ...11 Figure 2 1 KV50 20D MK2 leads...
Страница 12: ...12 Figure 2 2 Earthing in metal test cage Figure 2 3 Earthing in temporary test area without earthed enclosure...
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Страница 24: ...24 Drawings required A2 002227 latest issue KV50 20D mk2...