How to solve the irregular operation of the relay protection tester:

Before the relay protection test of the microcomputer relay protection tester, the operator should analyze the dangerous points. Explain the tasks and division of labor, clarify the working location, the status and precautions of the surrounding operating equipment, and check whether the safety measures meet the requirements.

Before moving the equipment, the field commissioning personnel must check whether the equipment name is consistent with the equipment name on the operation ticket, and pay attention to the wrong interval and wrong operation and maintenance; in the substation operation, the relay protection tester does not allow the switch operation handle to be moved , Car switch, ground button alarm, alarm bell, return button, trip voltage plate, voltage stabilizer, voltage switch, etc. When the above equipment needs to be operated due to operation, it must be approved by the relevant operator and operated under the supervision of the operator.

To maintain important equipment, especially to maintain complex maintenance or trip circuits, during on-site inspection, there must be approved safety technical measures and test plans, and a dedicated person must be supervised.

The maintenance personnel of the relay protection tester must accept and cooperate with the operators when conducting the switch transmission test. Otherwise, the personnel of the relay protection tester shall not operate alone. When operating on the maintenance panel and the secondary circuit equipment, the parts and terminals of the equipment running on both sides should be covered with curtains or insulators marked "in operation". To prevent accidents caused by accidental collision and gas fall, it is strictly forbidden to drill holes on the operation and maintenance panel. When drilling or vibration near the operation and maintenance panel is required, anti-vibration measures must be taken, and related maintenance should be stopped when necessary.

When the equipment is transported before and after the control panel or the inspection panel or placed above the passage, sufficient intervals should be maintained to prevent the switch from tripping due to the wrong contact of the operating panel. When the equipment is running and part of the maintenance shutdown circuit, except for disconnecting the trip In addition to the pressure plate, the loop related to the operating equipment that is not controlled by the trip pressure plate should be disconnected. The bus differential and the fault circuit must be connected. The wiring between the bus differential and the fault circuit must be double open. All broken ends should be encapsulated. And record, and resume record after running.

When checking the secondary circuit or action test of the relay protection tester, check the breaking position of the trip circuit and the start circuit pressure plate related to the secondary circuit of other operating equipment. The wiring, wiring or power-on test of each terminal of the operating equipment should be careful and careful Monitor and maintain the operation and maintenance of false contact, false contact, misconnection, and misplacement. During maintenance or operation on the control panel, a screwdriver with less exposed wires must be used to prevent accidental or accidental contact.