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