50. Briefly describe the principle and operation method of the lubricating oil interlock test circuit (An illustration can be used to explain)
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50. Briefly describe the principle and operation method of the lubricating oil interlock test circuit (An illustration can be used to explain)
1) Utilize the oil pressure two-out-of-three interlock principle to test online the flexibility and reliability of the oil pressure switch. 2) Specific operation method: (1) For a single-group test, close circuit normally open valve 1. (2) Open the normally open valve 1’ of the corresponding circuit. (3) As the oil pressure decreases, observe the interlock alarm status. (If the alarm functions properly, it indicates that the interlock for that circuit is working correctly.) (4) After a set of circuit tests is completed and operation is normal, the tests for the next circuit are carried out in sequence using the same method.