Power distribution network overvoltage detection alarm device
A technology of overvoltage detection and alarm device, applied in measurement device, emergency protection circuit device, measurement current/voltage, etc., can solve the problem that the voltage detector has a small application range to the distribution network, and cannot achieve voltage application performance and alarm function, etc. problems, to achieve the effect of improving safety performance and durability, improving heat dissipation performance, and expanding the scope of application
Active Publication Date: 2021-08-20
CHANGJI POWER SUPPLY COMPANY STATE GRID XINJIANGELECTRIC POWER +1
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Problems solved by technology
[0004] The purpose of the present invention is to provide a distribution network overvoltage detection and alarm device to solve the problem that the existing distribution network overvoltage detection device proposed in the above-mentioned background technology cannot realize the detection of different specifications of the distribution network by the voltage detector during use. The applicability and alarm function of the voltage lead to the problem that the voltage detector is less applicable to the distribution network
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[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0026] Please also refer to Figure 1-Figure 7 , wherein, an overvoltage detection and alarm device for a distribution network includes a voltage detector 1 and an inspection end cover 7, the inspection end cover 7 is fixedly clamped and installed on the outer top of the voltage detector 1, and one side of the outer top of the voltage detector 1 is embedded An alarm component 2 is installed, and the inner bottom of the alarm component 2 is equipped with ...
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The invention discloses a power distribution network overvoltage detection alarm device, which comprises a voltage detector. An insulation box is embedded in one side of the top end of the exterior of the voltage detector, an insulation shifting block is slidably installed in the middle of the top end of the exterior of the insulation box, an early warning lamp bar is installed on one side of the exterior of the insulation box, and a buzzer alarm is embedded in the other side of the exterior of the insulation box. A resistance coil is fixedly installed at the bottom end in the insulation box, the sliding rod is fixedly installed at the top end in the insulation box, the insulation shifting block is shifted to slide at the sliding rod, the resistance value in the insulation box can be changed according to the actual power distribution network detection voltage, and when the voltage of the power distribution network generates overvoltage and the output current in the insulation box is too large, the overvoltage detection alarm can be carried out on the working personnel through the flickering of the early warning lamp bar and the buzzing generated by the buzzing alarm through the conduction of the current in the early warning lamp bar and the buzzing alarm.
Description
technical field [0001] The invention relates to the technical field of power equipment detection equipment, in particular to an overvoltage detection and alarm device for a distribution network. Background technique [0002] The neutral point is not grounded and the power system is grounded through the arc suppressing coil or the high resistance grounding method. Most of the domestic power grids of 66kV and below adopt this grounding method. An intelligent comprehensive controller developed by faults, the device can be installed on the busbars of 3-35kV substations at all levels, through sampling and analyzing the secondary signals of voltage transformers and current transformers, it can quickly and accurately identify Various fault states of the power grid, and issue corresponding control, alarm, and blocking instructions. It is used to identify and control the common faults in the power grid that are likely to cause tripping accidents, such as voltage over-limit, PT disco...
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IPC IPC(8): G01R19/165G01R1/02H02H3/20H02H7/26
CPCG01R19/16533G01R1/02H02H3/20H02H7/26Y04S10/52
Inventor 何龙王清彬刘刚李昊泽马金财赵普志索涛朱咏明刘俊
Owner CHANGJI POWER SUPPLY COMPANY STATE GRID XINJIANGELECTRIC POWER