Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel cascade protection device of coupling test power frequency transformer

A technology for protection devices and testers, which is applied in the direction of overload protection devices, emergency protection circuit devices, electrical components, etc., and can solve problems such as cascade impact breakdown of power frequency voltage generators

Pending Publication Date: 2020-10-27
段小嬿
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem in the prior art that the power frequency voltage generator in the impulse voltage and power frequency overvoltage coupling test system is easily broken down by the cascade shock generated by the high potential of the tested product, and provides a Cascade protection device for new coupling test power frequency transformer

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel cascade protection device of coupling test power frequency transformer
  • Novel cascade protection device of coupling test power frequency transformer
  • Novel cascade protection device of coupling test power frequency transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as image 3 As shown, a new cascaded protection device for coupling test power frequency transformer is applied in the impulse voltage and power frequency overvoltage coupling test system, which includes the first small-level protection part and the second small-level protection part; the described The first small-level protection part is connected in series between the test product and the voltage regulating resistor of the impulse voltage and power frequency overvoltage coupling test system. The first small-level protection part is a large reactor with a compressed arc extinguishing jacket (Such as Figure 4 shown), the input end of the large reactor is connected to the output end of the voltage regulating resistor, and the output end of the large reactor is connected to the input end of the tested product; the second small protection part It is a solid-phase arc extinguishing anti-shock device; the solid-phase arc extinguishing anti-shock device is mainly compo...

Embodiment 2

[0034] Such as image 3 As shown, a new cascaded protection device for coupling test power frequency transformer is applied in the impulse voltage and power frequency overvoltage coupling test system, which includes the first small-level protection part and the second small-level protection part; the described The first small-level protection part is connected in series between the test product and the voltage regulating resistor of the impulse voltage and power frequency overvoltage coupling test system. The first small-level protection part is mainly composed of a large reactor connected in series with several compression The small reactor composition of the arc extinguishing jacket (such as Figure 5 shown); the input end of the large reactor is connected to the output end of the voltage regulating resistor, and the output end of the outermost small reactor is connected to the input end of the tested product; the second small protection part It is a solid-phase arc extingu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a novel cascade protection device of a coupling test power frequency transformer, which is applied to an impulse voltage and power frequency overvoltage coupling test system and comprises a first small-level protection part and a second small-level protection part. The first small-stage protection part is connected in series between a tested object of the impulse voltage and power frequency overvoltage coupling test system and a voltage regulating resistor. The second small-stage protection part is a solid-phase arc extinguishing anti-impact device, the solid-phase arcextinguishing anti-impact device is mainly composed of a solid-phase arc extinguisher and a graphite head, and the solid-phase arc extinguisher is used for striking an arc and generating strong air flow to extinguish the arc. The device is simple in structure, small in occupied area, convenient to operate, safe and reliable, the influence of impulse voltage invasion waves generated by impulse voltage on experiment equipment is guaranteed, the possibility of experiment errors is reduced, and the service life of the device is prolonged.

Description

technical field [0001] The invention belongs to overvoltage protection equipment, and in particular relates to a cascaded protection device for a novel coupling test power frequency transformer. Background technique [0002] Due to the promotion of urban distribution network automation, due to the relative imbalance between the power supply load and the power consumption load, the operation of the switchgear is becoming more and more frequent. Due to the rise of its potential, it will cause a large potential difference with the peripheral equipment, which will counterattack on the adjacent power equipment, causing the safety action of the piece of power equipment, which will bring serious harm to the power system and its equipment. [0003] Therefore, when testing the performance of some power equipment, it is an indispensable step to conduct the impulse voltage and power frequency overvoltage coupling test. The common impulse voltage and power frequency overvoltage coupling...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/36H02H7/04
CPCG01R1/36H02H7/04
Inventor 王嬿蕾王巨丰毛成程孟伟航许浩
Owner 段小嬿