What will cause the frequency conversion speed regulation of the trolley electric locomotive to fail?
There are two main reasons for the failure of the frequency conversion speed regulation of the trolley electric locomotive: environmental problems and operation problems, among which environmental problems include temperature and dust. details as follows:
Because both the frequency conversion controller and the body of the electric locomotive have certain heat absorption and heat storage capabilities, if the working environment temperature is too high, the heat dissipation capacity of the frequency conversion controller will easily fail to meet the demand. Therefore, in order to avoid this problem, if the working environment temperature of the electric locomotive is high, it is recommended to enhance the cooling capacity of the inverter controller. In addition, when the electric locomotive stops outside the mine, it should be parked under the shed as much as possible to reduce sunlight exposure.
There is generally a lot of dust in the mine, and a large amount of dust accumulation will not only affect heat dissipation, but may also damage electronic components. It is recommended to carry out more cleaning and maintenance on a daily basis, which can not only reduce the failure rate, but also prolong the service life.
The driver's long-term violations will also make the controller prone to failure, such as the handle not returning to zero when parking.
The above are the causes and solutions of the common faults of the frequency conversion speed regulation of the trolley electric locomotive.
