10kv moulding cable middle connector self-heating temperature controller and operation method

A cable intermediate head and automatic heating technology, applied in the direction of connecting/terminating cable equipment, etc., can solve the problem of shortening the baking time of the molded cable intermediate head, long production time of the molded cable intermediate head, and uneven heating of the cable insulation layer and other issues to achieve the effect of low work cost, easy observation, and reduced labor intensity

Inactive Publication Date: 2014-09-03
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it takes a long time to make the middle head of the molded cable. Many construction teams are trying to catch up with the construction period, or the workers are trying to reduce the labor intensity during baking.
However, the baking time of the molded cable intermediate head is shortened, which causes the molded cable intermediate head to not be completely melted into on

Method used

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  • 10kv moulding cable middle connector self-heating temperature controller and operation method
  • 10kv moulding cable middle connector self-heating temperature controller and operation method

Examples

Experimental program
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Effect test

Example Embodiment

[0020] Example

[0021] like figure 1 , 2 As shown in the figure, the automatic heating temperature controller at the middle head of the 10kV molded cable is composed of a temperature control part and a mica heating coil 2. The temperature control part includes a k-type thermocouple 3 placed in the heating part. The voltage is connected to the temperature controller 1 through a wire The temperature input port 6, the temperature controller is connected with the mica heating coil 2 through the temperature control voltage output port 7 through the wire. The temperature controller 1 includes a REX c-100 temperature controller 4 connected to a solid state relay 5 and a voltage and temperature input port 6 respectively, and the solid state relay 5 is connected to a power input terminal 8 and a temperature control voltage output port 7 respectively.

[0022] The invention is applied to the port supply area of ​​Dandong, and the actual operation experiment of the second shift of pow...

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PUM

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Abstract

The invention relates to a 10kV moulding cable middle connector self-heating temperature controller and an operation method. The temperature controller is formed by a temperature control portion and a mica heating ring (2). The temperature control portion comprises a k-type thermocouple (3) placed at the heating position and connected with voltage temperature input ports (6) of a temperature controller (1) through wires. The temperature controller is connected with the mica heating ring (2) through temperature control voltage output ports (7) via wires. The mica heating ring is utilized to heat to enable a mould to be uniformly heated at each angle, thereby guaranteeing internal insulation materials to be melted fully, and reaching production process standard of a middle mould head so as to guarantee the service life of a cable middle connector; the temperature is in digital display and is easy to observe; temperature control is precise; the heating speed is fast; the labour intensity of operating personnel can be reduced; human factors which influence the service life of the moulding cable middle connector are reduced; the temperature controller is light in weight and convenient to carry and install; and compared with the heating work of a traditional blast lamp, the cost is very low.

Description

technical field [0001] The invention relates to power system installation equipment, in particular to an automatic heating temperature controller for the intermediate head of a 10kV molded cable and an operation method. Background technique [0002] The middle head of the 10 kV molded cable uses the same material as the main insulation layer of the cable to restore the main insulation of the cable. Uneven heating) If the temperature is too high, the insulation is aging, and the temperature is too low, the insulation layer does not melt, which will cause the restored insulation layer not to be integrated with the main insulation layer of the cable. Overheating and aging of the insulation layer reduces the operating life of the cable. [0003] Taking the Donggang area of ​​Dandong as an example, there are currently 412 10kV cables with a length of 119 kilometers in the Donggang area, including 186 trunk cables, 96 kilometers, accounting for 80% of the total cable length. km ...

Claims

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Application Information

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IPC IPC(8): H02G1/14
Inventor 周大松徐刚潘学林姜铭重王大宾邹吉义
Owner STATE GRID CORP OF CHINA
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