1ZSC000562-AAL en
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User’s guide VUBB
37
8.1 Standard circuit diagram BUE
SUPPLY FOR MOTOR
TAP-
CHANGE
IN
POSITION
TAP-
CHANGE
IN
PROGRESS
TAP-
CHANGE
IN
PROGRESS
OPEN AT
LOWER
LIMIT
CLOSED
AT
LOWER
LIMIT
OPEN AT
UPPER
LIMIT
CLOSED
AT
UPPER
LIMIT
ITEM Q1 OFF/
RUN-THROUGH
ALARM
STEP-BY-
STEP DE-
ENERGIZED
REMOTE 0
LOCAL
SUPPLY FOR HEATER
SUPPLY FOR CONTROL CIRCUIT
1) CONTINUATION CONTACT INCLUDED ONLY WHEN THE TAP-CHANGER HAS THROUGH-POSITIONS.
CLOSED WHEN THE TAP-CHANGER IS AT THROUGH-POSITIONS.
HOLDING CIRCUIT
INITIATION
LOWER
REMOTE
TRIPPING
RAISE
