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Multi-voltage-stage high voltage electroscope

An electroscope and multi-voltage level technology, which is applied in the direction of instruments, measuring electrical variables, measuring current/voltage, etc., can solve the problems of single measurement range and inconvenient portability

Inactive Publication Date: 2012-12-26
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complexity and importance of the environment in which the electroscope is used, the combination of sound and light is generally used; according to the electroscope method, the composition of the main components and its working principle, the resistance value of the current-limiting resistor is fixed, and the measurement range is single. It is often necessary to measure a variety of circuits with different voltage levels, and it is necessary to carry a variety of measurement tools, which is inconvenient to carry

Method used

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Embodiment Construction

[0012] as attached Figure 1-2 As shown, the present invention includes a hand-held high-voltage electroscope, and the hand-held high-voltage electroscope is composed of a handle 1, an electroscope circuit box body 2 and an electrode contact 3 arranged at the top of the handle 1, and the electroscope circuit box body 2 is provided with There is a circuit display screen 6 and a control switch 5; it is characterized in that the front end of the electroscope circuit box 2 is also provided with a voltage level switching circuit box 7, and the pressure level switching circuit box 7 is composed of a first current limiting resistor 7- 1. The second current-limiting resistor 7-2, the third current-limiting resistor 7-3 and the transfer switch 4 are composed of the first current-limiting resistor 7-1, the second current-limiting resistor 7-2, and the third current-limiting resistor 7-3 After being set in parallel, one end is connected to the electrode contact 3 through the transfer swi...

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Abstract

The invention relates to a multi-voltage-stage high voltage electroscope. The electroscope comprises a hand-held high-voltage electroscope; the hand-held high-voltage electroscope consists of a handle, an electroscope circuit box body and an electrode contact which is arranged on the top of the handle; and a circuit display screen and a control switch are arranged on the electroscope circuit box body. The electroscope is characterized in that a voltage-stage switching circuit box body is also arranged on the front end of the electroscope circuit box body, the voltage-stage switching circuit box body consists of a first current-limiting resistor, a second current-limiting resistor, a third current-limiting resistor and a change-over switch, after the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor are connected in parallel, one end of the parallel combination of the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor is connected with the electrode contact by the change-over switch, and the other end of the parallel combination of the first current-limiting resistor, the second current-limiting resistor and the third current-limiting resistor is connected with the electroscope circuit box body. A switching circuit is additionally arranged on an original high voltage electroscope, so that measurement of different-voltage-stage circuits is completed by adjusting the values of resistance of current-limiting resistors, and the measurement work of different voltage stages can be completed by the change-over switch during the measurement.

Description

technical field [0001] The invention relates to a multi-stage high-voltage electroscope. Background technique [0002] In accordance with the requirements of the "State Grid Corporation of China Electricity Safety Work Regulations", a qualified contact electroscope with a corresponding voltage level should be used when inspecting electricity. Scope of use of electroscope Voltage level: 6kV, 10kV, 35kV, 110kV, 220kV, 330kV, 500kV AC voltage. Each voltage level is equipped with an electroscope corresponding to the voltage level. [0003] The high-voltage electroscope is mainly composed of three parts: a detection indicator, an insulating member, and a hand guard. According to the display mode of the electroscope, it can be divided into sound type, light type, digital type, rotary type, combined type, etc. Due to the complexity and importance of the environment in which the electroscope is used, the combination of sound and light is generally used; according to the electrosc...

Claims

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Application Information

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IPC IPC(8): G01R19/155
Inventor 李龙江亚婧马超陈玉宾王少博贾卫军姚贵水李红雷底贺军
Owner STATE GRID CORP OF CHINA
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