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Method for preparing overvoltage protection device

A protector and overvoltage technology, applied in the direction of emergency protection circuit devices, emergency protection circuit devices, electrical components, etc. for limiting overcurrent/overvoltage, which can solve the problem that the protection of electrical equipment cannot be used, and the phase and phase cannot be effectively limited. Phase overvoltage, arrester does not have arc suppression function, etc., to achieve the effect of protection and safety

Inactive Publication Date: 2014-02-12
阳城国际发电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, power plants, substations, and switchgears all use lightning arresters as protective devices, but the lightning arresters are not sensitive enough, and cannot absorb and release the generated energy in time when high pressure and ultra-high pressure are generated in the atmosphere, which will affect power equipment. Normal operation, reduce the service life of electrical equipment
At the same time, the existing lightning arresters do not have arc suppression function, cannot effectively limit the overvoltage between phases and between phases and ground, and cannot provide good protection for electrical equipment

Method used

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  • Method for preparing overvoltage protection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: (1) Dry the zinc oxide resistor, the drying temperature is 80°C, and the drying time is 10 hours;

[0025] (2) Configure the first resistance piece A, the second resistance piece B, the third resistance piece C and the discharge device: use a dried zinc oxide resistance piece of 42x17kV and two aluminum electrodes of 42x30kV in series Form the first resistance piece A, and use the impregnated glass fiber silk without latitude tape to wind and shape, wherein the zinc oxide resistance piece of 42x17kV is connected in series between two aluminum electrodes of 42x30kV; the second resistance piece B and the first The configuration process of the three resistors C is exactly the same as that of the first resistor A; use a 9.1kV zinc oxide resistor in series with a 11.3kV discharge gap, and connect the fifth resistor R5 in parallel at both ends of the discharge gap A series circuit formed with capacitor C1 is configured as a discharge device;

[0026] (3) Dry ...

Embodiment 2

[0031] Embodiment 2: (1) Dry the zinc oxide resistor, the drying temperature is 100°C, and the drying time is 9 hours;

[0032] (2) Configure the first resistor A, the second resistor B, the third resistor C and the discharge device: use one dried ? 42x17kV zinc oxide resistor in series with two ? 42x30kV aluminum electrodes. The first resistor sheet A is wound with rubber-impregnated glass fiber latitude-free tape, wherein the ?42x17kV zinc oxide resistor sheet is connected in series between two ?42x30kV aluminum electrodes; the second resistor sheet B and the third The configuration process of resistor C is exactly the same as that of the first resistor A; use a 9.1kV zinc oxide resistor in series with a 11.4kV discharge gap, and connect the fifth resistor R5 and The series circuit formed by the capacitor C1 is configured as a discharge device;

[0033] (3) Dry and shape the configured first resistor A, second resistor B, third resistor C and the discharge device. The dry...

Embodiment 3

[0038] Embodiment 3: (1) Dry the zinc oxide resistor, the drying temperature is 120°C, and the drying time is 8 hours;

[0039](2) Configure the first resistor A, the second resistor B, the third resistor C and the discharge device: use one dried ? 42x17kV zinc oxide resistor in series with two ? 42x30kV aluminum electrodes. The first resistor sheet A is wound with rubber-impregnated glass fiber latitude-free tape, wherein the ?42x17kV zinc oxide resistor sheet is connected in series between two ?42x30kV aluminum electrodes; the second resistor sheet B and the third The configuration process of resistor C is exactly the same as that of the first resistor A; use a 9.1kV zinc oxide resistor in series with a 11.5kV discharge gap, and connect the fifth resistor R5 and A series circuit composed of capacitor C1 is configured with a discharge device;

[0040] (3) Dry and shape the configured first resistor A, second resistor B, third resistor C and the discharge device. The drying ...

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Abstract

The invention relates to the overvoltage protection field, and concretely relates to an overvoltage protection device and a preparation method thereof. The overvoltage protection device comprises a first resistance card, a second resistance card, a third resistance card, a discharging apparatus and a pedestal. One ends of the first resistance card, the second resistance card, and the third resistance card are respectively used for connecting with a three phase power supply, other ends of the first resistance card, the second resistance card, and the third resistance card are arranged in the pedestal, main bodies of the first resistance card, the second resistance card, and the third resistance card are outside the pedestal, and the main bodies are arranged at one end of the pedestal and are grounded through a series electrical discharge apparatus. The overvoltage protection device has the characteristics of simple structure, sensitive reaction, and capability of timely adsorbing energy generated by atmosphere overvoltage and certain arc extinguishing effect, and protects an overvoltage protection device of electrical equipment effectively.

Description

technical field [0001] The invention relates to the field of overvoltage protection, in particular to a preparation method of an overvoltage protector. Background technique [0002] At present, power plants, substations, and switchgears all use lightning arresters as protection devices, but the lightning arresters are not sensitive enough to absorb and release the energy generated in time when high pressure and ultra-high pressure are generated in the atmosphere, which will affect power equipment. normal operation and reduce the service life of electrical equipment. At the same time, the existing lightning arrester does not have arc suppression function, cannot effectively limit the overvoltage between phases and between phases and ground, and cannot provide good protection for electrical equipment. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method for an overvoltage protector, which can prepare a sensitive overvolt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H9/04
Inventor 许留柱
Owner 阳城国际发电有限责任公司
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