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Use and maintenance of inverter
- Aug 07, 2018 -

Household photovoltaic system.jpgPhotovoltaic inverter.jpg

1. Use

The equipment must be connected and installed strictly according to the requirements of the inverter maintenance instructions. During installation, it should be carefully checked: whether the line diameter meets the requirements; the components and terminals are loose in transportation; whether the insulation is good or not; whether the grounding of the system is in accordance with the regulations.

1) It should be strictly operated in accordance with the provisions of the inverter maintenance instructions. In particular, we should pay attention to whether the input voltage is normal before starting the machine; in the operation, we should pay attention to whether the order of the switchgear is correct and the instructions of each head and indicator are normal.

2) The inverter usually has automatic protection of circuit breakers, overcurrent, overvoltage, overheating and so on. Therefore, no manual shutdown is needed when these phenomena occur. The protection point of automatic protection is generally set in the factory without any further adjustment.

3) There is a high voltage in the inverter cabinet. The operator usually can not open the cabinet door, and the cabinet door should be locked normally.

4) At room temperature exceeding 30 degrees, cooling and cooling measures should be taken to prevent equipment failure and prolong the service life of equipment.

2. Maintenance and repair

The connection of all parts of the inverter should be checked regularly to see if there is any looseness, especially the fan, power module, input terminal, output terminal and grounding.

1) Once the alarm is stopped, do not start the machine immediately. The reason should be found out and the machine should be started after repair.

2) Operators must be specially trained to determine the causes of common failures and be able to troubleshoot them, such as changing fuses, components and damaged circuit boards. Personnel without training shall not be employed to operate and use equipment.

3) If the causes of accidents or accidents that are not easy to be eliminated are not clear, the accident shall be recorded in detail and the inverter manufacturer shall be informed to solve the problem in time.