careful how you
connect the cables from the thyristors.
22.
White side PST Black side
-. Mount the cables from the thermal switch
and current transformers the LV-Board. Mount the cables from the Display and the
Keypad the LV-Board (new old).
Be careful how you connect the cables
from the current transformers (correct
phase sequence). careful
how you connect the Red (L) and Brown
(N) cable. Mount the connector. Mount the cables from the thyristors and
fans the HV-Board.
21. Mount the LV-Board with the six screws. careful avoid
damage the pins. Mount the new HV-Board with the five
screws.
20.
23.19.
On PSTB units, reconnect the cables from
the built by-pass contactor.
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