67
(3) DL11 switchgear accident
(4) DL21 switchgear accident
(5) DL131 switchgear accident
(6) DL231 switchgear accident
(7) 1 # main transformer fault
(8) 2 # main transformer fault
(9) DL11 switch manually trip
(10) DL21 switch manually trip
(11) DL131 switch manually trip
(12) DL231 switch manually trip
Explanation:
①
. if the main transformer malfunctions, sometimes standby power supply
automatic switch device is not allowed to operate, because it may cause an accident. At this
moment the tester can have an output to access standby power supply automatic switch
device, as block signal of standby power supply automatic switch device.
②
. In overhauling and testing state, use manual switch to cut off the power, at this time
standby power supply automatic switch device is not allowed to operate, then the tester can
have an output to access standby power supply automatic switch device, as block signal of
standby power supply automatic switch device.
3. Connection type of current and voltage
Do automatic switch test of standby power supply, the connection type is very complex.
The following connection type only for reference, users can apply flexibly according to the
spot situation.
(1)Connection type of current (plus a current to the low side of two main transformers
respectively)
The function of current access:
1
Before operation, please first judge that the branch of the tripped transformer side is
no current, then you can close the standby switch.
Summary of Contents for HT-802
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