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Low-voltage extraction switchgear and anti-corrosion technology thereof

A low-voltage withdrawable switchgear technology, which is applied in the field of switchgear, can solve the problems of being vulnerable to corrosion, shortening the service life of the switchgear, and not being able to withstand high temperatures, so as to improve the bonding state, improve wear resistance, and improve air permeability. Effect

Inactive Publication Date: 2017-05-10
SUZHOU NIUDONG PRECISION MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switchgear mainly include circuit breakers, isolating switches, load switches, The high and low voltage switchgear is a kind of switchgear. The existing high and low voltage switchgear can be used indoors or outdoors. When in use, it is easy to be corroded, or it is not resistant to high temperature when the temperature is high, which shortens the service life of the switchgear

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a low-voltage withdrawable switchgear, which includes the following components in terms of mass percentage:

[0029] Zn: 3%, Mo: 1%, Ti: 1%, N: 0.02%, Cr: 8%, C: 0.01%, Mn: 0.5%, Nb: 0.3%, Mg: 0.7%, Cu: 0.3%, W: 0.5%, Si: 0.3%, P: 0.025%, S: 0.008%, rare earth elements: 0.1-0.3%, the rest is Fe and unavoidable impurities;

[0030] Rare earth elements include the following components by mass percentage: lanthanum: 5%, cerium: 5%, scandium: 6%, yttrium: 3%, gadolinium: 5%, praseodymium: 15%, and the rest are other lanthanide elements. The sum of the components is 100%;

[0031] The anticorrosion process of the above-mentioned low-voltage withdrawable switchgear is to coat a layer of anticorrosion layer on the outer surface of the switchgear, and the anticorrosion layer includes the following components by mass fraction:

[0032] Bisphenol A polyetheretherketone resin: 40-60 parts, graphite slurry: 5-9 parts, defoamer: 9-14 parts, leveling agent:...

Embodiment 2

[0037] This embodiment provides a low-voltage withdrawable switchgear, which includes the following components in terms of mass percentage:

[0038] Zn: 6%, Mo: 1.5%, Ti: 1.2%, N: 0.03%, Cr: 11%, C: 0.03%, Mn: 0.7%, Nb: 0.6%, Mg: 0.9%, Cu: 0.4%, W: 0.7%, Si: 0.5%, P: 0.030%, S: 0.010%, rare earth elements: 0.3%, the rest is Fe and unavoidable impurities;

[0039] Rare earth elements include the following components in terms of mass percentage: lanthanum: 7%, cerium: 8%, scandium: 7%, yttrium: 7%, gadolinium: 7%, praseodymium: 18%, and the rest are other lanthanide elements. The sum of the components is 100%;

[0040] The anticorrosion process of the above-mentioned low-voltage withdrawable switchgear is to coat a layer of anticorrosion layer on the outer surface of the switchgear, and the anticorrosion layer includes the following components by mass fraction:

[0041] Bisphenol A polyetheretherketone resin: 40-60 parts, graphite slurry: 5-9 parts, defoamer: 9-14 parts, level...

Embodiment 3

[0046] This embodiment provides a low-voltage withdrawable switchgear, which includes the following components in terms of mass percentage:

[0047] Zn: 4%, Mo: 1.2%, Ti: 1.1%, N: 0.025%, Cr: 9%, C: 0.02%, Mn: 0.6%, Nb: 0.4%, Mg: 0.8%, Cu: 0.35%, W: 0.6%, Si: 0.4%, P: 0.028%, S: 0.009%, rare earth elements: 0.2%, the rest is Fe and unavoidable impurities;

[0048] Rare earth elements include the following components in terms of mass percentage: lanthanum: 6%, cerium: 6%, scandium: 6%, yttrium: 5%, gadolinium: 6%, praseodymium: 16%, and the rest are other lanthanide elements. The sum of the components is 100%;

[0049] The anticorrosion process of the above-mentioned low-voltage withdrawable switchgear is to coat a layer of anticorrosion layer on the outer surface of the switchgear, and the anticorrosion layer includes the following components by mass fraction:

[0050] Bisphenol A polyetheretherketone resin: 40-60 parts, graphite slurry: 5-9 parts, defoamer: 9-14 parts, leve...

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PUM

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Abstract

The invention discloses a low-voltage extraction switchgear. The low-voltage extraction switchgear comprises, by mass, 3 to 6% of Zn, 1 to 1.5% of Mo, 1 to 1.2% of Ti, 0.02 to 0.03% of N , 8 to 11% of Cr, 0.01 to 0.03% of C, 0.5 to 0.7% of Mn, 0.3 to 0.6% of Nb, 0.7 to 0.9% of Mg, 0.3 to 0.4% of Cu, 0.5 to 0.7% of W, 0.3 to 0.5% of Si, 0.025 to 0.030% of P, 0.008 to 0.010% of S and 0.1 to 0.3% of rare earth elements. The balance is Fe and unavoidable impurities. The invention further relates to the anti-corrosion technology of the low-voltage extraction switchgear. The anti-corrosion technology is simple and practicable. The anti-corrosion performance of the switchgear can be effectively improved. The service life is prolonged. The cost is reduced.

Description

technical field [0001] The invention relates to a switch cabinet, in particular to a low-voltage withdrawable switch cabinet and its anticorrosion process. Background technique [0002] The switch cabinet is a kind of electrical equipment. The outside line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs, such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage room and low-voltage room switchgear, high-voltage busbars, such as power plants, etc., and some also have low-cycle load shedding to ensure the main equipment. [0003] The main function of the switchgear is to open and close, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switchgear mainly include circuit breakers, isolating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/173C09D161/16C09D7/12C09D5/08
CPCH02B11/173C08K3/04C08K3/346C08K5/3415C08K5/42C09D5/08C09D7/61C09D7/63C09D161/16
Inventor 冉宏敏张超
Owner SUZHOU NIUDONG PRECISION MFG TECH CO LTD
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