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Live tester for zinc oxide arresters

A lightning arrester and tester technology, used in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as poor sensor data reliability, and achieve the effect of overcoming the shortcomings of long-distance wiring, simple wiring, and high measurement accuracy

Inactive Publication Date: 2012-10-17
YANGZHOU SHUANGBAO ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies such as poor sensor data reliability of existing metal oxide arrester electrification test instruments; the invention provides a zinc oxide arrester electrification tester, which has the advantages of simple wiring, high measurement accuracy and reliability Strong and other characteristics

Method used

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  • Live tester for zinc oxide arresters

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Embodiment Construction

[0009] exist figure 1 Among them, the zinc oxide surge arrester live tester includes a high-speed magnetically isolated current sensor and a high-speed magnetically isolated voltage sensor, the current sensor and voltage sensor are connected to the program-controlled amplifier, the program-controlled amplifier is connected to the controller, and the controller is connected to the voltage wireless signal receiver, LCD The monitor is connected to the keyboard.

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Abstract

The invention relates to a live tester for zinc oxide arresters. The live tester comprises a high-speed magnetically insulated current sensor and a high-speed magnetically insulated voltage sensor, the current sensor and the voltage sensor are connected with a controller through a programmed amplifier, and the controller is connected with a wireless voltage signal receiver and a peripheral. By adopting the unique high-speed magnetically insulated digital sensors, the tester can directly acquire inputted voltage and current signals, and guarantees the reliability and security of data; and the wireless voltage signal receiver also can receive wirelessly transmitted PT secondary voltage signals, which can help to overcome the defects of long-distance wiring.

Description

technical field [0001] The invention relates to a special instrument for on-site and laboratory detection of various relevant electrical parameters of the arrester, in particular, it is applied to the on-site electrification test and laboratory test of the zinc oxide arrester. Background technique [0002] At present, metal zinc oxide arresters are generally used as arresters. Because they work under high voltage for a long time, withstand the impact of overvoltage for many times, and long-term aging and humidity factors, the overall performance of the arrester decreases. At present, the testing of metal oxide surge arresters mainly judges its working performance through on-site electrification testing and laboratory testing. [0003] Existing live test instruments for metal oxide arresters generally use detection methods such as total leakage current, resistive current fundamental wave and third harmonic, but due to the relatively long distance between the voltage sensor an...

Claims

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Application Information

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IPC IPC(8): G01R19/00G01R15/14G08C17/02
Inventor 高荣庆
Owner YANGZHOU SHUANGBAO ELECTRIC EQUIP