Reasons and solutions for always tripping in high and low temperature test rooms
1, the phenomenon of failure is during the implementation of high and low temperature test chamber, from time to time the occasional total power supply tripping;
2. The top power switch at the top level trips along with each trip.
Around the author, the author discussed the issue here. The first occurrence of two-stage tripping is a serious problem because in the field of automation control, two-stage tripping will affect the production efficiency, and if there is no timely disposal and troubleshooting, there will be great personal safety risks.
Here we go directly to the failure analysis exclusion method.
Firstly, look at the status of the front and back execution of the high and low temperature test chamber at the moment of fault. This is a key point for analyzing the fault phenomenon and analyzing the fault phenomenon in that area to find the fault point for disposal.
Secondly, for multiple occurrences of high-low temperature test room two-stage tripping phenomenon, power failure check the two-stage total power circuit breaker configuration parameters are too close or leakage protection devices are relatively close, generally if there is a zero line without leakage protection device is unable Startup, a startup change immediately trips;
Finally, in the above checks are no problem in the detailed examination of the high and low temperature laboratory control function of each plate whether there is leakage, short circuit, over-current phenomenon, such as onlookers can be energized to perform inspection of each plate to check the implementation status. Or replace the software for alternate elimination.
In the technical maintenance industry, we must understand the work flow and principle of the equipment, and understand the approximate principle and role of each component. Regardless of whether it is a common fault or a micro fault, it is the fastest and most effective to deal with the symptoms of a fault. Welcome everyone to propose sharing.
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