How to use high-pressure nuclear phase device

What is a high-pressure phase nuclear device and how does it work? What are the methods of using a high-voltage phase nuclear device?

1. Inspection before use

1. Check whether the phase instrument is in good condition by yourself. The method is as follows:

First insert the test line into the FRD nuclear phase analyzer jack, and plug the other end into the 220V AC voltage. If there are three reactions at this time, it means it is good. If there are no three reactions, it means there is a problem and cannot be used.

2. Use a multimeter to check whether the test line is connected.

3. Use a multimeter or megger to check whether the resistance of the attenuation component complies with Table 3.

If the nuclear phase tester detected by the above method is normal, then the nuclear phase can be officially carried out. If you already know that the FRD phase nuclear instrument is normal, you can use it directly without testing. If there is no sound or the sound is very low during the test, it means that the battery voltage is insufficient and the battery should be replaced. You can open the watch case and replace it with a new 9V laminated battery.

2. Pre-nuclear phase detection

1. Before the formal phase verification, the phase verification device should be tested in the same power grid system to see if it is in good condition. One person will contact rod A with one of the conductors, and another person will contact rod B with the conductors of the same power grid phase by phase, as shown. The different functional phases have three reactions, and the same phase does not have three reactions. Only then can the phase be formally verified.

3. Nuclear phase operation

1. The nuclear phase operation should be performed by three people, with two people operating and one person supervising. And it must be operated phase by phase, recorded one by one, and determined whether they are in the same phase according to the "three presences and three absences" mentioned in the expression. Nuclear phase operations must conscientiously implement the procedures and systems formulated by the unit.

2. Special attention should be paid to the fact that during operation, the human body must not disconnect the nuclear phase instrument and high-voltage connection. The human body and the nuclear phase instrument must maintain a safe distance of 2.1m (place the nuclear phase instrument on the upper end of the second connecting rod), and the grounding wire Be reliably grounded. At the same time, a sufficient safety distance (2.1m) between the human body and the high-voltage connection must be maintained (please operate the phase nuclear device in accordance with the requirements of the phase nuclear device test operating procedures). The test wire connecting the two test rods is an ordinary 220V wire. The human body is not allowed to remove the wire or remove it at close range during phase verification. When using, the excessively long wire should be tied to the first test rod with a tie, and at the same time, there should be a sufficient safe distance from the human body (please refer to the high-voltage electrical operating regulations), and the high-voltage connection should not be in contact with the earth.

Precautions for using high-voltage nuclear phase device

1. Rods A and B of the high-voltage nuclear phase detector should be grounded respectively. If the ground wire of a certain rod falls off during operation, the operation should be stopped, and the measurement can be carried out after the ground wire is connected.

2. The high-voltage phase nuclear device should be placed in a dry place and the insulation resistance value should be checked regularly. The contact hook of the 35KV phaser should be grounded for about 60M.

3. It is best to have four people working on site, but not less than three. Fill out the second type of work ticket.

4. The exposed metal parts have been minimized in the design of the high-voltage nuclear phase detector, but a high degree of concentration should still be maintained during work to prevent short circuits between lines and grounding accidents. The above is the working principle of the high-voltage nuclear phase detector and related usage methods. I hope it can help you.