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Voltage sampler

A voltage sampling and voltage technology, applied in the field of electric power, to achieve the effect of simple and convenient operation

Active Publication Date: 2014-04-02
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a voltage sampler to solve the problem that during the secondary voltage drop test, the secondary voltage on the voltage transformer side needs to sample the voltage signal from the terminal block of the PT terminal box with alligator clips existing problems

Method used

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0034] figure 1 A schematic diagram of the structure of the base of the voltage sampler separated from the plug-type contactor provided in the embodiment of the present application.

[0035] Such as figure 1 As shown, the voltage sampler includes: a base 1 and a plug-type contactor 6, wherein: the base 1 is provided with a plurality of ...

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Abstract

The invention discloses a voltage sampler, which comprises a base and a pin type contactor, wherein the base is provided with a plurality of inserting holes which are mutually isolated and insulated, concave metal spring sheets are arranged in the base, and the positions of the concave metal spring sheets are in one-to-one correspondence to the positions of the plurality of inserting holes. An elastic opening is arranged at one end of each concave metal spring sheet opposite to one inserting hole, a plurality of metal contact pieces matched with the inserting holes are arranged on the pin type contactor, and adjacent two metal contact pieces are insulated. One end of each metal contact piece is located outside the pin type contactor, and the other end of the metal contact piece is fixed inside the pin type contactor. When the voltage sampler is used for test, the voltage sampler is simple and convenient to operate, can avoid wrong wiring, voltage short circuit and the like, achieves safe voltage sampling, reduces test impedance, improves measurement accuracy, and avoids introduction of test additional errors.

Description

technical field [0001] The present application relates to the field of electric power technology, in particular to a voltage sampler. Background technique [0002] With the continuous improvement of the accuracy of electronic energy meters and transformers, the voltage drop on the secondary circuit of the voltage transformer has become the main factor affecting the error of electric energy measurement. [0003] According to DL / T448-2000 "Technical Management Regulations for Electric Energy Metering Devices", the third part explains 7.3 on-site inspection requirements: the voltage drop of the secondary circuit of the voltage transformer in operation should be inspected regularly. For the voltage drop of the secondary circuit of the voltage transformer of 35kV and above, it shall be inspected at least once every two years. When the load of the secondary circuit exceeds the rated secondary load of the transformer or the voltage drop of the secondary circuit is out of tolerance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R1/04
Inventor 程瑛颖肖冀杨华潇刘静黄琮鉴
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST