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