Supermarket refrigerators are essential electrical equipment in shopping malls nowadays. Therefore, it is important for us to maintain them during long-term use. Next, let's introduce the maintenance methods for supermarket refrigerators

First: Voltage loss protection, i.e. zero voltage protection

Supermarket refrigerators use a knife switch to control the circuit of the motor on and off. When the power supply suddenly disconnects and the motor stops, if the power supply is suddenly restored at this time, the motor will resume starting. However, if this situation is serious, it may cause production and personal accidents

Therefore, if there is a self-locking link in the control circuit of the supermarket freezer, there will be corresponding voltage loss protection. When the power supply suddenly loses power and suddenly resumes, the button should be restarted to start the motor. Second: Short circuit protection

For the safety of electrical equipment in all aspects, when any electrical appliance in the supermarket freezer experiences a short circuit, the circuit itself must have protective capabilities to reduce damage to other electrical appliances. Short circuit protection consists of a fuse and an automatic switch.

Third: Overload protection, i.e. thermal protection

The rated current allowed for the household appliance itself is generally the rated current of the electric motor. If the load on the electric motor is too large or due to other reasons of the electrical appliance, the current passing through the electric motor exceeds its rated current

It will be under load operation. Although the fuse will not blow for a while, the motor may burn out over time.

The above is the maintenance method for the refrigerated cabinets in the closed supermarket that we have introduced to you. We hope our introduction can be helpful to you. If you want to learn more about the refrigerated cabinets in the closed supermarket, you can browse our website, and we will provide you with more professional information.