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A hot-replaceable heater kit for switchgear

A live replacement and heater technology, applied in the cooling/ventilation of substations/switchgears, electrical components, electric heating devices, etc., can solve the problems of poor operation of the switchgear, affecting the safety of power grid operation, affecting the reliability of power supply of the power grid, etc. To achieve the effect of saving costs and improving reliability

Active Publication Date: 2019-02-01
STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the heater is damaged, the operation of the switchgear will become very bad, which will greatly affect the safety of the power grid operation
If the heater needs to be replaced, the power must be cut off, which will affect the reliability of the grid power supply

Method used

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  • A hot-replaceable heater kit for switchgear
  • A hot-replaceable heater kit for switchgear
  • A hot-replaceable heater kit for switchgear

Examples

Experimental program
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Effect test

Embodiment Construction

[0021] to combine Figure 1 to Figure 4 As shown, a live-replaceable heater kit for a switchgear is mainly composed of three separate components: a fixed base plate, a heater insert plate and a clamping handle. Among them, the fixed bottom plate is used to fix the heater board and energize the heater board. Therefore, the outside of the fixed bottom board is insulated, and the surface of the fixed bottom board and the switchgear body is a flat structure. The connection hole 3 is fixed on the switchgear cabinet body with screws. The side opposite to the bonding surface on the fixed base plate is provided with grid-shaped grooves 2, the purpose of which is to increase the heat dissipation area and improve the heat conduction efficiency. One side of the fixed base plate is provided with a terminal 1, and the other side is provided with a conductive heater slot 4, one end of the terminal 1 is connected to an external power line, and the other end is connected to the heater slot 4...

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Abstract

The invention relates to a heater kit with live replacement for a switch cabinet. The heater kit comprises a fixed bottom plate, a heater insertion plate and a clamping handle. The outer part of the fixed bottom plate is insulated and the fixed bottom plate is fixed to the cabinet body of the switch cabinet. The side face of the fixed bottom plate is provided with a conductive heater insertion groove. The fixed bottom plate is provided with a wiring terminal. One end of the wiring terminal is electrically connected to a power supply, and the other end is electrically connected to the heater insertion groove. The heater insertion plate is provided with a metal heating wire and a power-taking lead which is electrically connected to the metal heating wire. The heater insertion plate is inserted into the heater insertion groove for ohmic heating. The clamping handle made of an insulation material is used for clamping the heater insertion plate to carry out pull and plug operations. The plug-in modular design is used by the heater kit provided by the invention, the clamping handle can be used to carry out pull and plug operations of the heater insertion plate, the live operation under a safe condition is realized, convenience is brought the maintenance of the heater, the cost is saved, and the reliability rate of grid power supply is improved.

Description

Technical field: [0001] The invention relates to a live-replaceable heater kit for a switchgear, belonging to the technical field of power systems. Background technique: [0002] The heater used in the switchgear is controlled by an intelligent temperature and humidity controller. When it is detected that the humidity in the switchgear exceeds the rated value, the heater will be put into operation automatically to heat the air in the switchgear and reduce the humidity in the switchgear. In traditional heaters, screws are used to directly fix the heater on the inner wall of the switch cabinet. Whenever encountering bad weather, the switching frequency of the heater in the switchgear increases, and the working time increases, which greatly increases the probability of heater damage. At present, the number of substations has increased sharply, the number of switchgears is huge, and the damage of heaters is increasing. Once the heater is damaged, the operation of the switchgea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/56H05B1/00
CPCH02B1/565H05B1/00
Inventor 吴逸飞何建明莫晓明许海峰王志亮葛昆明
Owner STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO
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