Novel shielding insulation isolation 10kV overhead insulation line lightning protection broken line protection device

An overhead insulation and shielding insulation technology, which is applied in emergency protection circuit devices, protective grounding/shielding devices for connecting parts, overhead installation, etc. The effect of long service life

Pending Publication Date: 2022-04-12
STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the patent CN 214506477U has a complex structure and uses a large number of electrical components. When lightning strikes, the stability of the device itself needs to b...

Method used

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  • Novel shielding insulation isolation 10kV overhead insulation line lightning protection broken line protection device
  • Novel shielding insulation isolation 10kV overhead insulation line lightning protection broken line protection device

Examples

Experimental program
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Effect test

Embodiment 1

[0042] refer to Figure 1-2 , a novel shielding insulation isolation 10kV overhead insulated line 1 anti-lightning disconnection protection device, comprising a 10kV overhead insulated line 1, the 10kV overhead insulated line 1 is installed on an elevated pole 2, the top of the elevated pole 2 Insulating support rods 3 are arranged on both sides, and the lightning protection protection cable 4 is fixed directly above the 10kV overhead insulated line 1 between the two elevated poles 2 through the insulating support rods 3. The lightning protection The protection cable 4 includes a low-resistance copper wire in the middle, and a steel wire rope protection shell located outside the low-resistance copper wire. , the cable-side electrodes are connected to the grounding unit 7 .

[0043] The insulating support rod 3 includes a glass fiber support rod and a ceramic support rod. The insulating support rod 3 and the lightning protection cable 4 are fixedly connected by a ferrite ceram...

Embodiment 2

[0058] The 10kV overhead insulated line 1 is provided with an overvoltage protector.

[0059] A lightning counter is set on the lightning protection cable 4 .

[0060] The overvoltage protector is connected to a driving motor, the driving motor is connected to a rack, and one end of the rack is fixed on the negative electrode in the high voltage discharge unit 9 .

[0061] According to the voltage value monitored by the overvoltage protector, the driving motor is controlled to rotate and transmit the driving force through the rack to realize the position movement of the negative electrode in the high voltage discharge unit 9 .

[0062] The distance of the discharge gap between the negative electrode and the positive electrode is adjusted in real time to realize the control of the discharge gap of the high-voltage discharge unit 9 and optimize the discharge efficiency of the high-voltage discharge unit 9 .

[0063] Setting the lightning strike counter facilitates the calculati...

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Abstract

The invention provides a novel shielding insulation isolation 10kV overhead insulation line lightning protection broken line protection device, and belongs to the technical field of lightning stroke monitoring protection. A novel shielding insulation isolation 10 kV overhead insulation line lightning protection broken line protection device comprises a 10 kV overhead insulation line, the 10 kV overhead insulation line is installed on an overhead line pole, insulation supporting rods are arranged on the two sides of the top end of the overhead line pole, and the insulation supporting rods are arranged on the two sides of the top end of the overhead line pole. The lightning protection cable is fixed right above the 10kV overhead insulation line between the two overhead line poles through the insulation supporting rod, and the lightning protection cable comprises a low-resistance copper wire in the middle and a steel wire rope protection shell located on the outer side of the low-resistance copper wire. A low-resistance rapid discharge technology and an electric energy unidirectional transmission design are adopted, so that the influence caused by lightning stroke discharge is effectively reduced, line breakage and damage to surrounding equipment caused by a pulse discharge phenomenon generated during lightning stroke are avoided, and the stability of power supply is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of lightning strike monitoring and protection, and in particular relates to a novel shielding insulation isolation 10kV overhead insulated line anti-lightning strike disconnection protection device. Background technique [0002] At present, my country's 10kV lines are dominated by overhead lines. Especially in more developed cities, l0kV overhead lines have changed from bare wires to insulated wires. Overhead insulated conductors have many advantages such as good insulation performance, reduced distance between lines, anti-corrosion, simplified structure, deep load center, conducive to urban greening, reduced line corridors, and extended maintenance cycles. This has significantly improved the safety of overhead lines, but at the same time how to prevent lightning breakage of overhead insulated conductors has become a new research direction. [0003] Lightning is a common and complex phenomenon in nature, w...

Claims

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Application Information

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IPC IPC(8): H01R13/648H01T19/00H02G7/00H02H9/08
Inventor 李德栓施学昭郭威付四喜张兰云贵童史红伟汪卫疆徐嘉明袁航
Owner STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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