21. careful avoid
damage the pins.
23. Mount the cables from the thyristors and
fans the HV-Board.19. Mount the cables from the thermal switch
and current transformers the LV-Board.
22. Mount the new HV-Board with the five
screws.
24. careful how you
connect the cables from the thyristors.
Be careful how you connect the cables
from the current transformers (correct
phase sequence).
White side PST Black side
-.
On PSTB units, reconnect the cables from
the built by-pass contactor.
20. careful
how you connect the Red (L) and Brown
(N) cable. Mount the LV-Board with the six screws. Mount the cables from the Display and the
Keypad the LV-Board (new old). Mount the connector
