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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 and 2# bus without voltage, 1# main transformer
and 2# main transformer without current.
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, DL21 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.
(5)Test summary
1
Confirm the main connection type of the system according to the drawings and site
conditions.
2
Understand the action logical relationship of standby power supply automatic device
according to the main connection type and instructions for standby power supply
automatic device, in order to do each state parameter settings.
3
Set each state parameter of current and voltage; select the corresponding input digital
and output digital. According to the operating time of standby power supply automatic
switch device, set the holding time of each state.
4
When standby power supply automatic switch device and each switch have been put into
operation, it is not allowed to access output terminal of the tester. If standby power
supply automatic switch device and each switch have not been put into operation, the
Summary of Contents for HT-802
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