Insulated conductor voltage testing meter

A technology of voltage tester and insulated wire, which is applied in the direction of measuring current/voltage, instruments, measuring devices, etc., can solve the problems of power measurement technology beyond reach, and achieve good plasticity, ensure safety, and ensure accuracy.

Active Publication Date: 2017-06-13
STATE GRID CORP OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] For another example, the measurement of the voltage between the wires inside the power cable has always been a blind spot in power engineering measurement, and the current level of power measurement technology is far behind.

Method used

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] Such as figure 1 and figure 2 As shown, a kind of insulated conductor voltage tester comprises two voltage measuring microneedle devices 51, test leads and voltage measuring meter 53, and two voltage measuring microneedle devices 51 are connected to each other through test leads and voltage measuring meter 53 respectively, and the voltage measuring When the microneedle device 51 measures, it directly enters the insulated wire 52 to be tested through the microneedle. Wherein the voltage measuring microneedle device includes: a protective barrel chamber 2, a pushing device 3 and a microprobe 1;

[0049] Such as imag...

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Abstract

The invention discloses an insulated conductor voltage testing meter, which comprises two voltage measurement microneedle devices, a test lead wire and a voltage measuring meter. Each voltage measurement microneedle device comprises a protecting cylinder chamber, a pushing device and a micro probe; each pushing device is sleeved inside each protecting cylinder chamber; each pushing device is fixedly connected with each micro probe; each micro probe makes front-and-back piston-type motion in each protecting cylinder chamber along with each pushing device, and is the micro probe made of high-strength copper alloy; the diameter of each micro probe is 100 nanometers; one end of the test lead wire is connected with the micro probes through needle beds. According to the insulated conductor voltage testing meter provided by the invention, the voltage measurement micro probes made of the high-strength copper alloy are completely used for measuring a voltage numerical value directly on an insulated conductor, a measurement process is safe and efficiency, and the measurement result accuracy and the measurement sensitivity are high.

Description

technical field [0001] The invention relates to electric power engineering measurement technology, in particular to an insulated wire voltage tester. Background technique [0002] The measurement operation of voltage and current is the most frequently operated basic measurement operation in power engineering measurement, power scientific research and power production. The current measurement operation has realized the "direct" current measurement on the insulated wire through the "clamp current transformer", which brings great convenience to the power measurement work. However, at present, there is no instrument in the world that can measure the voltage on two insulated conductors. [0003] For example, in the live inspection of incorrect wiring of electric energy metering devices, on-site actual load verification of electric energy meters, and on-site anti-stealing, it is often necessary to measure the voltage of electric energy metering devices. At this time, the metering...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R19/25
CPCG01R19/2503
Inventor 李国胜金志辉孔祥海余念群郑雪任涛
Owner STATE GRID CORP OF CHINA
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