Portable Polarity Test Pole

Abstract

The invention relates to a potable polarity test rod and belongs to the field of electrical equipment. The potable polarity test rod is characterized by comprising a handle, a main rod and a test system, wherein the handle is connected with the main rod, and the test system is connected with the handle and the main rod. The potable polarity test rod is reasonable in structure, convenient to use and capable of ensuring personal safety of workers no matter what conditions happen to a test site through reasonable device connection. The workers can carry out singlehanded operation without the help of a ladder, a stool or other heightening tools. A lighting lamp on the top of the test rod can enable the workers to see clearly devices in a measuring cabinet. The portable polarity test rod is easy to carry, store and operate, and long in service life.

Description

technical field [0001] The invention relates to a portable polarity test rod, which belongs to the field of electric equipment. Background technique [0002] Polarity detection of newly installed metering equipment is an important part of the metering work of power supply enterprises. The conventional polarity detection is as follows: the primary side of the metering PT and CT uses a dry battery to provide power for on-off operation, and the secondary side uses a pointer multimeter to judge the polarity of addition and subtraction. On the primary side, a worker connects the positive pole of the battery to one side of the high-voltage transformer through a wire, and conducts an on-off test between the negative pole and the other side of the high-voltage transformer through a wire. There are following shortcoming in this operation and implement: [0003] 1. The positive and negative poles of the battery are respectively connected with wires. The two wires are easy to connect...

AI Technical Summary

Problems solved by technology

[0003] 1. The positive and negative poles of the battery are respectively connected with wires. The two wires are easy to connect directly or through other conductors, which will cause discharge to the battery and are not easy to store for a long time;

[0004] 2. The current transformer of the general metering cabinet is installed relatively high and deep, and the interior is dark in some cases. The staff needs to provide tools such as ladders and stools, and it often happens that part of the staff's body enters the metering cabinet. During this period, the battery It is easy to fall when placed in place;

[0005] In some cases, the meter installation and connection work is carried out when the high-voltage incoming line is charged. In this case, if the high-voltage switch fails or is broken down, the staff will be in danger of high-voltage electric shock;

Images