Induced voltage control system and method thereof
A technology of induced voltage and control system, applied in the direction of measuring current/voltage, measuring electrical variables, measuring devices, etc., can solve problems such as personal safety injuries, and achieve the effect of improving safety performance
Inactive Publication Date: 2018-02-23
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO +1
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Problems solved by technology
[0004] At present, the induction voltage control system usually uses the induction voltage detection device to measure, and the staff judges whether there is a dangerous situation according to the detection results. serious harm to personal safety
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[0034] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0035] see figure 1 , this figure is a schematic diagram of an induced voltage control system of the present invention, the system includes: an induced voltage detection device 1, an oscilloscope 2, an induced voltage elimination device 3; one end of the induced voltage detection device 1 is connected to the circuit to be tested, and the induced voltage detection The other end of the device 1 is connected to one end of the oscilloscope 2, the other end of the oscilloscope 2 is connected to one end of the induced voltage eliminating device 3, and the other end of the induced voltage eliminating device is connected to the circuit to be tested. Therefore, the induced voltage of the line to be tested can be detected by the voltage detection device 1, and then oscillographically displayed by the oscilloscope 2, and the induced voltage in the line to be tested can be elimi...
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The invention discloses an induced voltage control system, which comprises an induced voltage detection device and an oscilloscope connected with the induced voltage detection device , wherein the induced voltage detection device comprises a capacitive voltage divider connected with a circuit to be tested, and an output end of the capacitive voltage divider is connected with a peripheral circuit;the oscilloscope comprises a controller, and the controller is used for comparing a detection voltage from the peripheral circuit with a preset threshold, judging whether an induced electromotive force detected currently is greater than a preset first threshold, and sending out alarm information if the judgment is yes. In addition, the invention further discloses an induced voltage control method.By adopting the induced voltage control system and the induced voltage control method, the measurement precision of the induced voltage is improved, and the safety performance is improved.
Description
technical field [0001] The invention relates to the technical field of induced voltage, in particular to an induced voltage control system and a method thereof. Background technique [0002] The electromagnetic environment where the substation is located is a power frequency electromagnetic field, which is a quasi-static field. The metal conductor in the electric field makes it to the ground potential through capacitive coupling or electromagnetic coupling, that is, presents the electrostatic induction voltage, electromagnetic induction voltage and ground current to the ground. Taking the parameter test of the double-circuit transmission line on the same tower as an example, the induced voltage on the line is as high as several thousand or even tens of thousand volts during a single-circuit power outage. [0003] The voltage can be as high as several thousand volts. Under this condition, the line parameter test will not only affect the accuracy of the test data, but also ca...
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IPC IPC(8): G01R19/165G01R13/00
CPCG01R19/165G01R13/00
Inventor 石惠承周迅钱昊华晶晶沈桔黄国良王晓莹程重周咏槟冯悦凯
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD JIAXING POWER SUPPLY CO