Reasons for the compressor current of the constant temperature and humidity testing machine to be too large

1. The input power supply voltage is too low. If only the allowed working voltage is low, the compressor current will be too large.

2. Repair the short circuit between the compressor turns, but it did not reach the level of cutting off the fuse.

3. Repair the secondary friction of the compressor destroys the cleanliness of the friction surface, the power current of the compressor increases, but does not reach the shaft holding and cylinder jam, it may not reach the rated speed, the compressor cannot rotate normally, and the starting current is too big.

4. The refrigeration system is affected by external factors, just like the condenser is close to the wall, the pipe is too dirty, the natural air condensing effect is poor, and the hot air cannot be dissipated.

5. Sudden power failure, sudden call, the high and low pressures in the system are not completely balanced, the startup is difficult, and the current is too large.

6. If the refrigerant in the compressor leaks, the temperature is difficult to drop, the motor keeps running, and the compressor current is too large.

7. The starting relay is faulty, the thermal protector is incapable, and the current is too large.