69
4. Parameter setting
(1)The main wiring 1:
1
Working principle:
Before failure: 1# bus and 2# bus with current and voltage.
In failure state: DL11 tripped, 1# bus without current and voltage, 2# bus with current and
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, DL131 disconnect, DL100 close.
After standby power supply automatic switch operation: 1# bus with current, 1# main
transformer without current, 2# bus with voltage, the current of 2# main transformer is
increased. State settings of current and voltage are as follows:
1# bus voltage
Bus
Bus
BZT
tester
Summary of Contents for HT-802
Page 78: ...78...
