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Connecting device specially used for 10kV bypass operation system

An operating system and dedicated connection technology, which is applied to the components, connections, coupling devices, etc. of the connection device, and can solve the problems of inconvenient connection and connection, obvious negative effect of single-core cable circulation, and difficulty in realizing multi-branch operation.

Active Publication Date: 2020-02-11
NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bypass cable is the main body of the current channel of the bypass system. The length of a single bypass flexible cable is generally 50 meters. When multiple overhead lines or cable lines need to be bypassed for maintenance, multiple flexible cables are connected through the intermediate connector. , to build a current channel of the corresponding length, when the bypass channel built by the flexible cable exceeds 300 meters, the negative effect of the single-core cable circulation is obvious, generally use 70mm 2 Standard three-core engineering cable instead, there are three cables in the three-core engineering cable, the connection with the generator car and the connection between each other are not convenient enough, and it is difficult to realize multi-branch operation

Method used

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  • Connecting device specially used for 10kV bypass operation system
  • Connecting device specially used for 10kV bypass operation system
  • Connecting device specially used for 10kV bypass operation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] refer to Figures 1 to 4 , a special connection device for 10kV bypass operation system, including a connection box 100 and a connection assembly 400 located in the connection box 100 for maintaining the electrical connection between the power transmission cable 200 and at least one three-core engineering cable 300, the connection assembly 400 includes a base 410 And three L-shaped sleeves 420 fixed on the base 410, the three L-shaped sleeves 420 have an input end 421 and an output end 422, the input end 421 is electrically connected to the power transmission cable 200, and the output end 422 is electrically connected to the first cable head 310 , the first cable head 310 has a first plug end 311 and a first connection end 312, the first plug end 311 is plugged with the output end 422, and the first connection end 312 is covered with an insulating cover 330 or plugged with a second cable The head 320 , the first cable head 310 and the second cable head 320 can be electr...

Embodiment 2

[0056] This embodiment specifically illustrates the structure of the L-shaped sleeve 420, specifically: refer to Figure 5 , the L-shaped casing 420 includes an L-shaped casing 423 and an L-shaped conductive rod 424 located in the L-shaped casing 423, the L-shaped conductive rod 424 is wrapped in the L-shaped casing 420, and the L-shaped casing 420 has excellent insulation performance, so that the current on the L-shaped conductive rod 424 will not leak out.

[0057] Three L-shaped bushings 420 are installed side by side on the base 410, and a semi-conductive layer 430 is provided on the outside of the three L-shaped bushings 420, and each L-shaped bushing 420 is provided with a shield surrounding the outside of the L-shaped conductive rod 424 The net 440 improves the electric field distribution by setting the semiconductive layer 430 and the shielding net 440. The semiconductive layer 430 is the outer shielding layer, the shielding net 440 is the inner shielding layer, and th...

Embodiment 3

[0060] This embodiment specifically illustrates the connection relationship between the power transmission cable 200, the L-shaped sleeve 420, and the first cable head 310. Specifically: refer to Figure 6 and 7 , the end of the power transmission cable 200 is provided with a pole 210, and the two ends of the L-shaped conductive pole 424 are provided with two jacks 4241, one jack 4241 is in the vertical direction, and the other jack 4241 is in the horizontal direction. The horizontal direction of the connection box 100 is electrically connected with the L-shaped bushing 420 , and the first cable head 310 and the second cable head 320 are connected in series in the vertical direction and plugged into the L-shaped bushing 420 .

[0061] When the power transmission cable 200 is plugged into the L-shaped sleeve 420, the connecting rod 210 is inserted into the horizontal jack 4241 on the L-shaped conductive rod 424 to maintain good contact; the first cable head 310 is plugged into ...

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Abstract

The invention discloses a connecting device specially used for a 10kV bypass operation system and belongs to the power supply equipment field. Long-distance and multi-branch operation is realized. Theconnecting device specially used for a 10kV bypass operation system comprises a connecting box body and a connecting component which is located in the connecting box body and is used for keeping a power transmission cable to be electrically connected with at least one three-core engineering cable. The connecting component comprises a base and three L-shaped sleeves fixed to the base. The three L-shaped sleeves are provided with input ends and output ends. The input ends are electrically connected with the power transmission cable. The output ends are electrically connected with a first cablehead, the first cable head is provided with a first plugging end and a first connecting end. The first plugging end is plugged with the output ends, an insulating cover covers the first connecting endor a second cable head is plugged with the first connecting end, and the first cable head and the second cable head can be electrically connected with the three-core engineering cable.

Description

【Technical field】 [0001] The invention relates to the field of power supply equipment, in particular to a special connection device for a 10kV bypass operation system. 【Background technique】 [0002] Bypass operation refers to the transfer of the load in the distribution network to the bypass system through the access of bypass equipment, so as to realize the purpose of power outage maintenance of the equipment to be repaired. The bypass cable is the main body of the current channel of the bypass system. The length of a single bypass flexible cable is generally 50 meters. When it is necessary to perform bypass maintenance on multiple overhead lines or cable lines, multiple flexible cables are connected through the intermediate connector. , to build a current channel of the corresponding length, when the bypass channel built by the flexible cable exceeds 300 meters, the negative effect of the single-core cable circulation is obvious, generally use 70mm 2 The standard three-c...

Claims

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Application Information

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IPC IPC(8): H02G15/18H01R13/02H01R13/502
CPCH02G15/18H01R13/02H01R13/502
Inventor 戴晓红周宏辉陈德炜朱圣盼胡元辉肖云佳黄磊施永明陈高其李修可
Owner NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
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