Novel current transformer polarity detection device
A current transformer and polarity detection technology, which is applied in the direction of measuring devices, measuring device casings, and electrical winding tests, can solve problems such as inability to measure correctly, easy fatigue, and affecting work efficiency.
Pending Publication Date: 2021-05-18
西安中科讯达信息科技有限公司
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Problems solved by technology
[0003] The polarity test of the current transformer should be carried out before and after the handover and overhaul, in order to prevent the wrong polarity during the wiring, which will cause the wrong action of the protection device and the inability to measure correctly in the relay circuit and the metering circuit.
Frequent wiring and observation of test results are required during the testing process. When these devices are stacked together, they are fine in a short period of time. If they last for a long time, people are prone to fatigue, which affects work efficiency.
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[0021]The present invention will be described in detail below in conjunction with the embodiments shown in the drawings, but these embodiments are not intended to limit the invention, and those of ordinary skill in the art, methods, or structures according to these embodiments. Equivalent transformation or replacement is within the scope of the invention.
[0022]Such asFigure 1 ~ 2As shown, it shows a specific embodiment of the present invention; as shown, a new type of current transformer polarity detecting device disclosed herein, including a box 1 and a cover 2, a box body 1 and a box cover 2 Hinged, the display groove 21 is opened in the box 2, and the display groove 21 is provided with a dashboard 3, and the pointer in the instrument panel 3 is first indicated by the terminal A and B, X and Y are homagical or the same end. The pointer is first negative as the terminals A and B, X, and Y are opposite or not the same end, at this time, A and Y, X, and B are homogeneity or the same ...
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The invention discloses a novel current transformer polarity detection device. The device comprises a box body and a box cover. The box body is hinged to the box cover, a display groove is formed in the box cover, an instrument panel is arranged in the display groove, and the instrument panel is arranged at the end, away from the box body, of the box cover. A homopolar indicator lamp, an antipolar indicator lamp, an operation lamp and an electric quantity display lamp are arranged on the side, close to the box body, of the instrument panel. A wiring interface, a power switch, a trigger button, a charging interface and a mode switch are arranged on the upper end face of the box body. A buffer assembly is further arranged between the box body and the box cover. Compared with the prior art, equipment for observation and equipment for operation are respectively arranged on the box cover and the box body, so that a detector can conveniently observe a detection result, the working comfort is improved, the wiring comfort is improved, fatigue can be relieved, the error probability is reduced, and the working efficiency can be effectively ensured; secondly, a detector can conveniently carry the device; and thirdly, the service life of the detection device is prolonged.
Description
Technical field[0001]The present invention relates to the technical field of power system polarity detecting apparatus, and is specifically used for current transformer polarity detecting devices.Background technique[0002]The current transformer is an electronic component made in accordance with the principle of electromagnetic induction, and the specific structure includes a closed core and a primary winding and secondary winding wound on the core, wherein the one winding is used to connect the current, secondary winding. The measurement meter is taken.[0003]Current transformers should be polarized before and after handover and overhaul, to prevent the polarity in the wiring, causing the protection device errors to cause errors and cannot be measured correctly in the relay loop and meteric circuit. During the test, frequent wiring and observation test results are required. These devices are piled up in a short time. If the last time is very long, it is easy to fatigue, which affect...
Claims
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IPC IPC(8): G01R35/02G01R31/72G01R1/04G01R1/02
CPCG01R1/02G01R1/04G01R35/02G01R31/72
Inventor 王习明
Owner 西安中科讯达信息科技有限公司