Reasons why the power supply cannot be plugged and unplugged during use of the cryostat
The low-temperature box power supply uses 380V voltage. The manufacturer recommends that the power supply connection be safer to open, but some users cannot connect to the open space due to site restrictions, and can also use the socket. However, there are a lot of things to be aware of, many of which are small details that users don't understand. YASELINE low temperature box experts say that the low temperature box should not be plugged in at any time during use. The reasons are as follows:
When the low temperature box is in normal use, the temperature in the low temperature box is low to a certain value, and the temperature controller automatically cuts off the power supply. At this time, the pressure of the refrigerant is already low, which is relatively small compared with the load of the motor, and the motor is easy to be normal. start up. If the power supply is forcibly cut off, the power supply is immediately turned on when the refrigerant has a relatively high pressure. The high voltage causes the motor load to be too large, and the starting current is 20-30 times of the normal value, so that it is easy to cause the current to be too large. The motor burned out. Therefore, the low temperature box cannot be plugged or unplugged at will. When it is necessary to power off, it should also take 3 minutes (after the high and low voltage of the refrigeration system reaches equilibrium), and then reconnect the power.
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