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1.
Manual operation: Push the push plate of the transfer switch to the right for manual
operation, and insert the handle into the body. Then you can manually operate the switch.
2.
Remove the handle and push the push plate left to the automatic position (which is the
automatic transfer state) if needed.
8.7 Description of automatic transfer operation flow of the product:
Power grid — Power grid, Automatic
charge and automatic recovery mode
Power grid — Generator, Automatic
charge and automatic recovery
QN: Common side circuit breaker;
QR: Standby side circuit breaker.
9
Use and Maintenance
9.1 Product commissioning
After installation, the product shall be commissioned. Manual commissioning: Adjust the
automatic/manual switching gear of the transfer switch to the manual gear, and then pull the
handle to make the product in the state of common closing, dual-split, and standby closing, and
check whether the product is reliably closed.
Power-on commissioning: Adjust the automatic/manual switching gear of the transfer switch to
the automatic gear first, and then energize the two power supplies. Commission the product
according to the product transfer process in Article 8.7, and observe whether the product
transfer and panel indicator light are normal and whether the output state of the secondary
terminal is correct.
9.2 Product fault analysis and maintenance
Common/standby power
supply normal
Common power
supply abnormal
Common power supply
opening
Transfer to standby
power supply
Common power supply
recovery normal
Standby power supply
closed
Standby power supply
opening
Common power supply
closed
Transfer to common
power supply
Common/standby power
supply normal
Common power supply
abnormal
Common power supply
opening
Standby power supply
closed
Standby power supply
opening
Common power supply
closed
Transfer to standby power
supply
Transfer to common power
supply
Common power
supply recovery
normal
Generator starting signal output
Generator voltage reaching 80% of the
rating
Output the generator stop
signal
Generator
shutdown
