When installing the inverter governor, it is necessary to first understand its use occasions and set up different peripheral equipment according to the needs of the site. The primary peripheral equipment of frequency governor is: air circuit breaker, electromagnetic contactor, communication reactor, braking resistor, DC reactor, output communication reactor, wireless noise filter and so on.
The peripheral equipment of the inverter governor is described in detail as follows:
1. Air circuit breaker is an active electrical appliance that can not only contact and disconnect the circuit normally, but also operate under abnormal conditions such as overcurrent, reverse current, short circuit and loss (under)voltage. Its primary role is to maintain the electrical equipment in the AC and DC circuits, and it is also able to operate the circuit infrequently. It is used to quickly block the frequency converter governor and avoid power supply problems caused by line problems.
2. The communication reactor, also known as AC reactor and communication reactor for power supply coordination, is primarily used to avoid harmonic disturbance in the power grid.
3. The communication contactor is referred to as the contactor, which is used to shield the active electrical appliances used to shield the long-distance connection and separation of AC and DC circuits, or large capacitance control circuits, and is mainly used for actively blocking the main power supply and avoiding power failure and failure when there is a problem with the frequency converter.
4. The radio noise filter, also known as the power filter, is primarily used to suppress the conduction of radio signals from the metal pipeline into the equipment, or to suppress the transmission of the disturbance signal from the disturbance source equipment through the power supply.
5. The DC reactor is mainly to suppress the higher harmonics generated by the frequency conversion governor, and its effect is better than that of the communication reactor.
6. The output communication reactor is also known as the output side anti-disturbance filter, which is a filter that suppresses the influence of high-frequency disturbance filter on the power supply side.
7. The filter hood is mainly to prevent dust from entering the frequency converter.
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