An improved full-loop electroscope and its control method
An electroscope and full-circuit technology, which is applied to indicate the existence of current/voltage, detect faults according to conductor types, and fault locations, etc., can solve problems such as poor anti-interference ability of electroscopes and inability to accurately judge fault points, and achieve correct Error effect, improve buffer adaptability, improve the effect of fault tolerance
Active Publication Date: 2018-10-26
保定瑞隆电力器材有限公司
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Problems solved by technology
However, the electroscope with this structure has poor anti-interference ability, and the self-inspection process cannot accurately determine the fault point
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[0023] refer to Figure 1-4 , an improved full-loop electroscope, including an anti-dead zone input module 1, a current scaling module 2, an amplification and filtering module 3, a controlled oscillation module 4, a power amplification module 5, and an audible and visual alarm module 6 connected in series. An anti-interference module 7 is connected between the scaling module 2 and the amplification and filtering module 3; the anti-interference module 7 includes a first inductance L1, a second inductance L2 and a third inductance L3 connected in series, the first inductance L1 and the second inductance L2 and The second inductance L2 and the third inductance L3 are respectively grounded through the first capacitor C1 and the second capacitor C2; the input end of the anti-dead zone input module 1 is connected to the output end of the controller 8, and the output end of the power amplification module 5 is connected to the To the input terminal of the controller 8, any two of the ...
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The invention discloses an improved full loop electroscope which includes an anti-dead zone input module, a current zooming module, an amplification filtering module, a controlled oscillation module, a power amplification module and an acousto-optic alarm module which are in serial connection. The current zooming module and an amplification filtering module are connected to an anti-interference module therebetween. An input end of the anti-dead zone input module is connected to an output end of a controller. An output end of the power amplification module is connected to an input end of the controller. Any two adjacent aforementioned modules are connected to the input end of the controller therebetween. The anti-dead zone input module, the current zooming module, the amplification filtering module, the controlled oscillation module, the power amplification module, the acousto-optic alarm module, the anti-interference module and the controller are fixedly mounted inside a housing. The invention also discloses a method for controlling the improved full loop electroscope. According to the invention, the improved full loop electroscope and the method overcome the deficiencies of prior art, and increase anti-interference capability of the electroscope and self-check capability of the electroscope.
Description
technical field [0001] The invention relates to a high-voltage electroscope, in particular to an improved full-circuit electroscope and a control method thereof. Background technique [0002] High-voltage equipment and power transmission and distribution lines sometimes fail during operation. When maintenance personnel are overhauling, they will first use AC high-voltage transformers to detect high-voltage equipment and power transmission and distribution lines, and then try again under the condition of ensuring safety. Try repairing. Chinese invention patent application CN 103336168 A discloses a full-circuit AC self-inspection high-voltage electroscope device. Through the cooperation of input circuit resistance and capacitance, the response time of the electroscope in detecting low voltage is reduced, and the full-circuit self-inspection high-voltage inspection device is improved. Sensitivity of electrical appliances, so safe operation can be reliably guaranteed. However...
Claims
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IPC IPC(8): G01R19/145G01R31/08
CPCG01R19/145G01R31/085
Inventor 刘会生
Owner 保定瑞隆电力器材有限公司