Portable rechargeable remote control current transformer polarity tester
A current transformer and tester technology, which is applied in the field of portable and rechargeable remote-controlled current transformer polarity tester, can solve the problems of low accuracy and low test efficiency
Pending Publication Date: 2022-06-28
内蒙古送变电有限责任公司
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Problems solved by technology
[0003] The traditional polarity test generally requires two testers to cooperate with each other to complete the test. At the same time, only one phase of the current transformer can be completed at a time. It needs three times to test the polarity of a three-phase current transformer. After the polarity test is completed, the test efficiency is generally low, and in the process of relay protection debugging in the substation, there will be some interference signals such as electromagnetic interference, which will lead to low accuracy of the polarity test results of the three-phase current transformer
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[0026] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments may be combined with each other under the condition of no conflict.
[0027] Many specific details are set forth in the following description to facilitate a full understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, and Not all examples.
[0028] It should be understood that, in the following, "at least one (item)" refers to one or more, and "a plurality" refers to two or more. "And / or" is used to describe the relationship between related objects, indicating that there can be three kinds of rela...
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The invention relates to a portable rechargeable remote control current transformer polarity tester, which comprises a rechargeable battery and a wireless remote control switch module, and is characterized in that the wireless remote control switch module comprises a signal detection module, a signal receiving module, a controller, a first normally open switch, a second normally open switch and a third normally open switch; the first normally-open switch is connected in series between the positive electrode end of the rechargeable battery and the first terminal of the A-phase primary side of the three-phase current transformer, and the second normally-open switch is connected in series between the positive electrode end of the rechargeable battery and the first terminal of the B-phase primary side of the three-phase current transformer. The third normally-open switch is connected in series between the positive electrode end of the rechargeable battery and the first terminal of the primary side of the C phase of the three-phase current transformer, and the negative electrode end of the rechargeable battery is electrically connected with the second terminal of the primary side of each phase of the three-phase current transformer. And an ampere meter is connected between two terminals of the secondary side of each phase of the three-phase current transformer.
Description
technical field [0001] The embodiments of the present disclosure relate to the technical field of substation device testing, and in particular, to a portable rechargeable remote-control current transformer polarity tester. Background technique [0002] At present, in the process of relay protection debugging in substations, current transformers need to be tested for polarity. Polarity test is one of the important factors affecting the success of power transmission. The test process of the traditional polarity test test is that a tester hangs a power test wire on the P1 and P2 sides of the primary side of the current transformer, and then fixes one of the power test wires on the negative terminal of the battery. , and another special line for power test jogging and disconnecting the positive terminal of the battery continuously, so as to form a primary circulating current in the current transformer, and then react on the secondary side of the current transformer through the p...
Claims
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Login to View More IPC IPC(8): G01R35/00H04Q9/00
CPCG01R35/00H04Q9/00
Inventor 朱庆禄庞国栋鲁肇文高燕刘鑫远童曦武振龙
Owner 内蒙古送变电有限责任公司