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Ultra-low frequency dielectric loss tester

A dielectric loss and tester technology, applied in dielectric performance measurement, instruments, measurement devices, etc., can solve the problems of anti-interference and low measurement accuracy, achieve strong anti-electromagnetic interference ability, improve detection accuracy, and accurate and reliable results Effect

Inactive Publication Date: 2018-12-21
伟宸科技(武汉)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcoming of anti-interference and low measurement accuracy in the prior art, and propose a kind of ultra-low frequency dielectric loss tester

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0020] refer to Figure 1-3 , an ultra-low frequency dielectric loss tester, comprising a storage box 1, a tester housing 3 is placed in the storage box 1, a box cover 4 is provided on one side of the storage box 1, and the box cover 4 is connected to the storage box through a hinge. The box 1 is rotatably connected, and the panel of the tester housing 3 is provided with a sample input port 31, a ground wire interface 32, a power switch 33, a microcontroller 34, an insurance voltage input port 35, control keys 36, a printer 37 and a display 38 , the test product input port 31, the ground wire interface 32, the power switch 33, the micro-controller 34, the insurance v...

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Abstract

The invention relates to the technical field of the dielectric loss detection device of electric equipment, especially an ultra-low frequency dielectric loss tester. The ultra-low frequency dielectricloss tester comprises a storage tank, a tester shell is placed in the storage tank, and a tank cover is arranged at one side of the storage tank; a sample input port, a ground wire interface, a powerswitch, a micro controller, an insurance voltage input port, a manipulation key, a printer and a display are arranged on the panel of the tester shell; an AC power input port is arranged on the microcontroller, working elements in the tester shell comprise a test power, a dielectric loss electric bridge and a master control unit; the test power comprises an AC power and an ultra-low frequency voltage generator, the ultra-low frequency voltage generator comprises a micro controller and a booster; the dielectric loss electric bridge comprises a sample detection circuit unit, a digital shielding communication unit, a signal conditioning unit and an A / D collection unit; the master control unit comprises a protection module, a printing module, a display module, a touch module and a communication module. The detection precision is improved, the interference resistance is strong, and the loss is low.

Description

technical field [0001] The invention relates to the technical field of electric equipment dielectric loss detection devices, in particular to an ultra-low frequency dielectric loss tester. Background technique [0002] Dielectric loss measurement is a very basic method in insulation testing. It can effectively detect the overall moisture deterioration and local defects of the insulation of power equipment. It is widely used in electrical manufacturing, electrical equipment installation, handover and preventive tests. Transformers, The measurement of the dielectric loss of transformers, reactors, capacitors, bushings, and lightning arresters is the most basic method to measure their insulation performance. The traditional dielectric loss measurement methods are mainly the wattmeter method and the bridge method. The wattmeter method is based on the dielectric loss. The dielectric loss parameter is obtained by calculating the power and the current flowing through. This method h...

Claims

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Application Information

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IPC IPC(8): G01R27/26
CPCG01R27/2694
Inventor 李昌李彬宁楠
Owner 伟宸科技(武汉)有限公司
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