An Active Protection Type Power Transformer Polarity Tester

Abstract

The invention discloses an active protective power transformer polarity tester, which comprises a wire clip, a support frame and a detection box. The support frame includes a support rod, a connecting rod, and a grip rod. Connecting rods, both ends of the connecting rods are vertically provided with supporting rods, and the ends of each supporting rod are provided with wire clamps, and the detection box is equipped with automatic switching devices, sound and light alarms, batteries, for For the pointer multimeter for detecting transformers, one clamp is electrically connected to the negative pole of the battery, the other clamp is electrically connected to the automatic switching device, the automatic switching device is electrically connected to the positive pole of the battery, and the sound and light alarm is connected to the automatic The switching device is electrically connected. It solves the current problem of shortened battery life due to short-circuit of the line. The automatic switching device will disconnect the line of the tester and give an alarm reminder, which can protect the safety of the tester and the staff and make the use safer.

Description

technical field [0001] The invention relates to the technical field of power detection, in particular to an active protection type power transformer polarity tester. Background technique [0002] After the transformer is newly installed or faulty, it is necessary to check the polarity of the transformer to ensure the accuracy of power measurement. The traditional measurement method is to lead a wire from the positive and negative electrodes of the dry battery, connect the wire to the current or voltage transformer and observe The pointer deflects the direction to observe. [0003] There are two problems in the current detection method. On the one hand, the two wires drawn from the rod battery are prone to direct connection, causing short-circuit discharge of the dry battery and shortening the battery life; on the other hand, the transformer must be powered off during the detection process. The transformer is charged due to the abnormality of the line switch, and the staff w...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the above-mentioned deficiencies in the prior art, and provides an active protection type power transformer polarity tester, which uses two clamps to clamp and fix the primary wires at both ends of the transformer, making the connection more firm and easy to use , and the wire clip is fixed on the support rod, and there will be no contact between the two wire clips, which solves the problem of shortened battery life caused by the short circuit that is easy to occur at present, and saves costs, and the support frame allows the staff to move without climbing. It can detect the transformer at high or low places, and set up an automatic switching device at the same time. When the transformer is charged, the automatic switching device will disconnect the circuit of the tester and give an alarm reminder. On the one hand, it can remind the staff to carry out Correct operation, on the other hand, can protect the safety of the detector and the staff, making it safer to use

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