72
Before failure: 1# bus and 2# bus with voltage. 1# main transformer and 2# main
transformer with current,
In failure state: DL11 tripped, 1# bus no voltage, 1# main transformer without current, 2#
main transformer with current, 2# bus with voltage.
Standby power supply automatic switch (BZT) operation: When standby power supply
automatic switch judge that there are no current and voltage on 1# bus, standby power supply
will operate, DL30 close.
After standby power supply automatic switch operation: revert back to the pre-failure
state. State settings of current and voltage are as follows:
Before failure
In failure state
BZT operated
2
Test connection- please refers to item 4.1.2.
(4)The main wiring 4:
1
Working principle:
Bus
Bus
Содержание HT-802
Страница 78: ...78...
