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High-reliability air switch cabinet

An air switch, reliable technology, applied in the field of switchgear, can solve the problems of easy damage, short service life, easy corrosion and damage, etc., and achieve the effect of reducing pollution and good cooling effect

Inactive Publication Date: 2018-11-23
荣马电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Air switch, also known as air circuit breaker, is a kind of circuit breaker. It is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. Air switch is very important in low-voltage power distribution network and in-store drag system. It is a kind of electrical appliance, which integrates control and multiple protection functions. The air switch cabinet is set up to protect the air switch. Since the air switch protects the entire circuit, the air switch cabinet needs real-time air switch. For protection, most of the current air switchgears are composed of ordinary structures, which are easily damaged when subjected to external force impact, and the influence of the external environment is also easy to cause corrosion and damage, and the service life is short

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a high-reliability air switchgear, and the cabinet body includes the following components in terms of mass percentage:

[0044] C: 0.18%, Si: 0.6%, Mn: 1.3%, Zn: 3%, Mo: 1%, Ti: 1%, N: 0.02%, Cr: 7%, Nb: 0.03%, V: 0.10%, Mg: 0.7%, B: 0.001%, Cu: 0.1%, W: 0.1%, P: 0.025%, S: 0.010%, rare earth element: 0.1%, the rest is Fe and unavoidable impurities;

[0045]Rare earth elements include the following components by mass percentage: cerium: 5%, scandium: 7%, yttrium: 13%, praseodymium: 15%, and the rest is lanthanum. The sum of the above components is 100%.

[0046] The concrete preparation process of above-mentioned cabinet body is as follows:

[0047] (1) According to the shape of the cabinet, the mold is mixed with quartz sand, water glass and bentonite as the molding material, and the gate is opened on the mold, and then the mold is placed in an oven and baked at 220°C Dry;

[0048] (2) Spray a layer of paint on the surface of the dried mold,...

Embodiment 2

[0064] This embodiment provides a high-reliability air switchgear, and the cabinet body includes the following components in terms of mass percentage:

[0065] C: 0.3%, Si: 0.9%, Mn: 1.9%, Zn: 6%, Mo: 1.5%, Ti: 1.2%, N: 0.03%, Cr: 9%, Nb: 0.06%, V: 0.20%, Mg: 0.9%, B: 0.0015%, Cu: 0.3%, W: 0.3%, P: 0.030%, S: 0.015%, rare earth elements: 0.3%, the rest is Fe and unavoidable impurities;

[0066] Rare earth elements include the following components by mass percentage: cerium: 8%, scandium: 9%, yttrium: 15%, praseodymium: 18%, and the rest is lanthanum. The sum of the above components is 100%.

[0067] The concrete preparation process of above-mentioned cabinet body is as follows:

[0068] (1) According to the shape of the cabinet, the mold is mixed with quartz sand, water glass and bentonite as the molding material, and the gate is opened on the mold, and then the mold is placed in an oven and baked at 250°C Dry;

[0069] (2) Spray a layer of paint on the surface of the dried...

Embodiment 3

[0085] This embodiment provides a high-reliability air switchgear, and the cabinet body includes the following components in terms of mass percentage:

[0086] C: 0.22%, Si: 0.7%, Mn: 1.6%, Zn: 5%, Mo: 1.2%, Ti: 1.1%, N: 0.025%, Cr: 8%, Nb: 0.04%, V: 0.15%, Mg: 0.8%, B: 0.0012%, Cu: 0.2%, W: 0.2%, P: 0.028%, S: 0.013%, rare earth elements: 0.2%, the rest is Fe and unavoidable impurities;

[0087] Rare earth elements include the following components in terms of mass percentage: cerium: 6%, scandium: 8%, yttrium: 14%, praseodymium: 17, and the rest is lanthanum. The sum of the above components is 100%.

[0088] The concrete preparation process of above-mentioned cabinet body is as follows:

[0089] (1) According to the shape of the cabinet, the mold is mixed with quartz sand, water glass and bentonite as the molding material, and the gate is opened on the mold, and then the mold is placed in an oven and baked at 230°C Dry;

[0090] (2) Spray a layer of paint on the surface of...

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PUM

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Abstract

The invention discloses a high-reliability air switch cabinet which comprises a cabinet body, a switch chamber, a meter chamber, a mechanism chamber and a cable chamber. The switch chamber, the meterchamber, the mechanism chamber and the cable chamber are arranged in the cabinet body. The cabinet body is prepared from, by mass, 0.18-0.3% of C, 0.6-0.9% of Si, 1.3-1.9% of Mn, 3-6% of Zn, 1-1.5% ofMo, 1-1.2% of Ti, 0.02-0.03% of N, 7-9% of Cr, 0.03-0.06% of Nb, 0.10-0.20% of V, 0.7-0.9% of Mg, 0.001-0.0015% of B, 0.1-0.3% of Cu, 0.1-0.3% of W, 0.025-0.030% of P, 0.010-0.015% of S, 0.1-0.3% ofrare earth elements and the balance Fe and inevitable impurities. The high-reliability air switch cabinet is simple and compact in structure, good in corrosion resistance, high in reliability and longin service life.

Description

technical field [0001] The invention relates to a switchgear, in particular to a high-reliability air switchgear. 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 equipped 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 are also equipped with low-cycle load shedding to ensure the main equipment; [0003] Air switch, also known as air circuit breaker, is a kind of circuit breaker. It is a switch that will automatically disconnect as long as the current in the circuit exceeds the rated current. Air switch is very important in low-voltage power distribution network and in-store drag system. It is a kind of e...

Claims

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Application Information

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IPC IPC(8): C22C38/02B22C3/00C21D9/00C22C38/04C22C38/20C22C38/22C22C38/24C22C38/26C22C38/28C22C38/32C22C38/38H02B1/30H02B3/00
CPCB22C3/00C21D9/0068C22C38/001C22C38/002C22C38/005C22C38/02C22C38/04C22C38/20C22C38/22C22C38/24C22C38/26C22C38/28C22C38/32C22C38/38H02B1/30H02B3/00
Inventor 陆燕常加军李银生许伟王星王伟常鑫倪文龙陈明张万荣赵开封
Owner 荣马电器有限公司
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