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Safe and energy-saving power distribution cabinet

A power distribution cabinet, safety technology, applied in substation/power distribution device casing, electrical components, substation/switch layout details, etc., can solve problems such as unsafe use, reduce failure rate, achieve safe operation, and improve stability and safety effects

Inactive Publication Date: 2019-03-12
ZUNYI HUAZHENG CABLE BRIDGE STAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ensuring that no electric shock accidents occur in the distribution cabinet is an inevitable requirement for the safe use of the distribution cabinet. Prior technologies such as CN108574211A and CN207098309A all need to use inert liquid nitrogen to improve safety, but the use of this substance is not safe in itself, and the use of mechanical parts is reduced. The probability of electric shock is a more applicable method
After searching, the inventor did not find any technical solutions to improve equipment safety by installing hydraulic valves on the top of the power distribution cabinet in the prior art

Method used

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  • Safe and energy-saving power distribution cabinet

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specific Embodiment approach

[0016] Such as figure 1 As shown, the power distribution cabinet 1 is equipped with an isolation net 2 inside the cabinet. The isolation net makes the smoke or gas inside the cabinet form a uniform local pressure. On the top of the switch cabinet, install a pressure relief valve 3 made of aluminum-zinc plate , the left side of the pressure relief valve cover plate is connected with the fixed sheet metal part 4 through a hinge, and the right side of the cover plate is fixed with the plastic plate 6 through a black rubber sheath 5 . The size of the pressure relief valve can be opened according to the specific capacity of the switch. If the busbar of the system is short-circuited, when the air pressure in the cabinet exceeds the set value, the gas will push the black rubber sheath away, thereby effectively reducing the damage to other cabinets. Secondly, the opening level of all door panels must reach IP20. When the switch is closed and the door is opened, all exposed live cond...

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Abstract

The invention relates to a safe and energy-saving power distribution cabinet. A pressure release valve is arranged at the top of the power distribution cabinet; one end of the pressure release valve is fixed with a fixed sheet metal part; and the other end of the pressure release valve is fixed with a plastic plate. The fixing can be rubber sheath-based bolt fixing. When the pressure is too large,a black rubber sheath pops up to reduce the pressure in the power distribution cabinet and reduce the fault danger. Another technical scheme of the power distribution cabinet is adding an arc extinguishing chamber at a ventilation opening so as to reduce the arc danger. The using safety of the power distribution cabinet is improved.

Description

technical field [0001] The invention belongs to the technical field of electric devices, in particular to a safe and energy-saving power distribution cabinet. Background technique [0002] As an important part of the power system, the low-voltage distribution cabinet has an important impact on the stability of the power system load and operation. For the installation and maintenance of low-voltage power distribution cabinets, it is an indispensable process to improve the installation quality, strengthen daily maintenance, and ensure safe and limited operation. [0003] Ensuring that no electric shock accidents occur in the distribution cabinet is an inevitable requirement for the safe use of the distribution cabinet. Prior technologies such as CN108574211A and CN207098309A all need to use inert liquid nitrogen to improve safety, but the use of this substance is not safe in itself, and the use of mechanical parts is reduced. The probability of electric shock is a more applic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B1/30
CPCH02B1/30H02B1/306
Inventor 杨再强陈才平杨再江田茂琴吕昌勇黄光兵杨秀宽
Owner ZUNYI HUAZHENG CABLE BRIDGE STAND CO LTD