Operation Criteria - GE BUS1000 Instructions Manual

•
Connect the two differentials through their ON buttons.
•
Check that the only LED that is on is the green one.
•
Remove the jumpers from the Stabilising Resistors.
- NOTE : The alarm units in the differentials will remain operated during installation, until all the currents are
compensated.
For the measures of the voltage is sufficient the use of in digital multimeter with the range and precision of
milivolt.
8.8.

OPERATION CRITERIA

Please make sure that the short circuit of the stabilization resistors is disconnected before at the end of the
tests.
A very extended criterion is not to connect immediately the trips, but to maintain this situation within a period
enhance between 6 months to 1 year (depending on the weather conditions and the customs of the utility).
This procedure is based on the importance of not having an undesired trip. Whose origin may be caused by
various sources: mistake of some polarity in a current circuit, auxiliary contacts of disconnector switches that
they do not are operating correctly, some loose cable, etc.). Therefore is preferred to have the protection in
service under real operation environment during a period of test, but unable to trip, although it will give all the
signals to the control panels.
Once this period has finished and the performance of the protection is considered as appropriated, the trips
should be connected.
GEK-98514B
8. FINAL INSTALLATION & COMMISSIONING
BUS1000 Busbar Protection 8-3