UPS 30-300kVA User Manual
Maintenance
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maintenance bypass and static bypass.
8)
Turn off the maintenance bypass breaker.
9)
After 30S, the rectifier starts, the rectifier indicator LED goes green, and then inverter starts.
10) After 60S, the system transfers to Normal mode.
5.3.2
Maintaining monitor unit and bypassunit for 150kVA and 200kVA
Confirm the UPS is operating in Normal mode and the bypass is working normally
1)
Transfer the system to bypass mode through the LCD control panel (Refer to chapter 5.2.2).
2)
Turn on the manual bypass breaker.
3)
Turn on the external maintenance bypass breaker.
4)
One by one to turn off the battery breaker, external input breaker, external bypass input
breaker, and external output breaker. The load is powered through external maintenance
bypass.
5)
Take out two power units, which are close to the monitoring unit and the bypass unit, can be
taken to repair the monitoring and the bypass unit;
6)
After the completion of maintenance, insert power unit and tighten the screws on both sides
of the power unit.
7)
One by one to turn on the external output breaker, external bypass input breaker, external
input breaker and battery breaker.
8)
After 2 minutes, the bypass indicator LED goes green, and the load is powered through
external maintenance bypass, manual bypass and static bypass.
9)
Turn off the external maintenance bypass breaker. The load is powered through manual
bypass and static bypass.
10) Turn off the manual bypass breaker.
11) After 30S, the rectifier starts, the rectifier indicator LED goes green, and then inverter starts.
12) After 60S, the system transfers to Normal mode.
5.3.3
Maintaining monitor unit and bypassunit for 400kVA and 500kVA
Confirm the UPS is operating in Normal mode and the bypass is working normally
1)
Transfer the system to bypass mode through the LCD control panel (Refer to chapter 5.2.2).
2)
Turn on the maintenance bypass breaker. The load is powered through maintenance bypass
and static bypass.
3)
One by one to turn off the battery breaker, input breaker, bypass input breaker and output
breaker. The load is powered through maintenance bypass.
4)
Take out the panel above the monitoring unit, and can repair the monitoring unit
5)
Take out the panel at the top of the bypass unit and the right side door panel of the cabinet,
and repair the bypass unit.
6)
After the completion of maintenance, install panel and tighten the screws.
7)
One by one to turn on the output breaker, bypass input breaker, input breaker and battery
breaker.
8)
After 2 minutes, the bypass indicator LED goes green, and the load is powered through
maintenance bypass and static bypass.
9)
Turn off the maintenance bypass breaker.
10) After 30S, the rectifier starts, the rectifier indicator LED goes green, and then inverter starts.
11) After 60S, the system transfers to Normal mode.
5.4 Battery Setting
The setting of battery needs to be done after the first time of powering off or any changes done on
the batteries.
The battery configure ration can be done through the LCD control panel (Figure5-1) or though
monitoring software (Figure5-2).
