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Base station-used combined strong lightning surge electromagnetic pulse suppressing system

An electromagnetic pulse, combined technology, applied in the direction of emergency protection circuit devices, electrical components, circuit devices, etc. for limiting overcurrent/overvoltage

Pending Publication Date: 2019-04-16
深圳锦天乐防雷技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the problem that the cooperation between the current lightning protection device and the external overcurrent protection has not been effectively solved, and provides a combined system for suppressing strong lightning surge electromagnetic pulses for base stations

Method used

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  • Base station-used combined strong lightning surge electromagnetic pulse suppressing system
  • Base station-used combined strong lightning surge electromagnetic pulse suppressing system

Examples

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Effect test

Embodiment 1

[0016] Example 1, such as figure 1 As shown, the present embodiment is a combined system for suppressing strong lightning surge electromagnetic pulses for a base station, including a first-level protector 10 and a second-level protector 10 installed in the base station equipment casing 15 when the mains power enters the base station equipment. Level protector; wherein, the first level protector 10 is arranged on the port connected to the mains, including a backup protector 10-1 and a lightning protector 10-2 arranged between the input mains phase line and the neutral line; the phase line The device 11 for electromagnetic suppression of lightning current is connected in series with the power supply end of the equipment. The device 11 for electromagnetic suppression of lightning current includes a high inductance device 11-1 and a magnetic ring 11-2 at both ends of the high inductance device 11-1. The line is grounded 4 through a discharge tube 3-1, which is PE in the figure.

...

Embodiment 2

[0029] Example 2, such as figure 2 As shown, in this embodiment, on the basis of Embodiment 1, a second protection circuit 14 is also provided between the mains phase line connected to the equipment power supply terminal 15 in the base station equipment casing 12 and the mains ground. The second protection circuit includes a second backup protector 14-1 and a second lightning protector 14-2 connected in series. The second protection circuit utilizes a second discharge tube 3-2 to ground. And the power ground wire in the first protection circuit 14 is grounded through the first discharge tube 3-1.

[0030] In this embodiment, when the base station is struck by lightning, it is a lightning protection system that resists strong lightning surges and prevents burning, and multi-channel isolation grounding. Especially when the base station is affected by strong lightning strikes and electromagnetic pulses, the two lightning protection devices that will not be installed together C...

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Abstract

The invention provides a base station-used combined strong lightning surge electromagnetic pulse suppressing system. The system comprises a first-stage protector when the mains supply enters a base station device; the first-stage protector comprises a backup protector and a lightning arrester arranged between a mains supply input phase line L and a zero line N; the phase line is serially connectedwith electromagnetic lightning current suppressing devices and is then connected with the power supply end of the device, through multichannel staged isolation and a lightning electromagnetic surge suppressing joint grounding system, the lightning arrester generates transient overvoltage on the same grounding bar in the case of discharging lightning current, and when damages are possibly caused to a device with low working voltage and a part sensitive to lightning, the purpose of realizing best protection on the part with low working voltage and sensitive to lightning is achieved. In a condition of ensuring safety operation of a mobile communication system, the system provided in the invention can be used for efficiently suppressing strong lightning surge for the base station, preventinggrounding short circuit accidents, preventing burning of the lightning arrester and performing multichannel isolation and grounding protection device selection.

Description

technical field [0001] The invention relates to the field of lightning protection and grounding of small mobile communication base stations, in particular to a combined system for suppressing strong lightning surge electromagnetic pulses for base stations. Background technique [0002] Lightning protection is a complex system engineering. The lightning strike of the base station is a high-intensity transient process. The lightning damage mechanism of equipment has always been a difficult problem to be continuously explored by the lightning protection circles at home and abroad. In the past, base station lightning protection technologies and standards at home and abroad mainly referred to the requirements of Ericsson and Motorola, mainly emphasizing the reduction of power frequency grounding resistance, the connection between metal components, and the suppression of lightning-induced overvoltage. The equipment channel and mechanism are unknown, and the mine damage problem of ...

Claims

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Application Information

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IPC IPC(8): H02H9/04H02H9/06
CPCH02H9/04H02H9/06
Inventor 刘晶川李柏林陈荣斌
Owner 深圳锦天乐防雷技术有限公司
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