CN209267171U - A kind of lightning protection device for measuring terminal - Google Patents

A kind of lightning protection device for measuring terminal Download PDF

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Publication number
CN209267171U
CN209267171U CN201821857217.4U CN201821857217U CN209267171U CN 209267171 U CN209267171 U CN 209267171U CN 201821857217 U CN201821857217 U CN 201821857217U CN 209267171 U CN209267171 U CN 209267171U
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CN
China
Prior art keywords
aperture
sub
terminals
measuring terminal
terminal
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Active
Application number
CN201821857217.4U
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Chinese (zh)
Inventor
龚大江
毛鸿
常强
吴广洋
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Guizhou Power Grid Co Ltd
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Guizhou Power Grid Co Ltd
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Priority to CN201821857217.4U priority Critical patent/CN209267171U/en
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Abstract

The utility model discloses a kind of lightning protection devices for measuring terminal; terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3, zero line side sub-aperture and the grounding terminal sub-aperture of voltage introducing side including measuring terminal; terminals sub-aperture L1, terminals sub-aperture L2 and terminals sub-aperture L3 are zero line sub-aperture; terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3 and zero line side sub-aperture are respectively connected with a low-voltage distribution surge protector, and the ground terminal and grounding terminal sub-aperture of each low-voltage distribution surge protector are connected to ground.The utility model does not install low-voltage distribution surge protector additional in for voltage introducing side of measuring terminal on route road, voltage aerial drainage while can be realized multichannel, lightning protection effect is more preferable, more conducively protection measuring terminal, and the service life is longer for measuring terminal.

Description

A kind of lightning protection device for measuring terminal
Technical field
The utility model belongs to measuring terminal anti-thunder technical field, and in particular to a kind of lightning protection dress for measuring terminal It sets.
Background technique
With the development of communication technologies, scene uses more and more with electrical communication system in electric terminal.Telecommunications Equipment is largely made of a large amount of electronic integrated circuit, and electronic component is as its in sensitive electronic equipment, with electric system His power equipment, which is compared, to be more easier even to be destroyed by overvoltage, overcurrent and the influence of the interference of electromagnetic field.Thunder and lightning conduct One powerful electromagnetic interference source can generate instantaneous huge current flow variation, so that huge transient electromagnetic field is generated, with The integrated level of electronic equipment is higher and higher, and power consumption is smaller and smaller, and the overvoltage ability that can bear is also more and more weaker, is highly prone to The influence of lightning surge.Subtropical zone moistens monsoon climate area, and thunderstorm is more, the terminal that uses of scene, be struck by lightning often and Damage, causes serious harm to grid company.
Summary of the invention
The technical issues of the utility model solves is: a kind of lightning protection device for measuring terminal is provided, it is above-mentioned to solve Problems of the prior art.
The technical solution that the utility model is taken are as follows: a kind of lightning protection device for measuring terminal, including measuring terminal Terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3, zero line side sub-aperture and the grounding terminal sub-aperture of voltage introducing side, Terminals sub-aperture L1, terminals sub-aperture L2 and terminals sub-aperture L3 are zero line sub-aperture, terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3 and zero line side sub-aperture are respectively connected with a low-voltage distribution surge protector, and each low-voltage distribution surge is protected The ground terminal and grounding terminal sub-aperture for protecting device are connected to ground.
Four low-voltage distribution surge protectors are fixedly connected in orbit, more compact convenient for junction box structure, each low It is press-fitted on the end of incoming cables of electric surge protector and switch is installed.
The utility model has the beneficial effects that compared with prior art, voltage introducing side of the utility model in measuring terminal Do not have route road install additional low-voltage distribution surge protector, voltage aerial drainage while can be realized multichannel, lightning protection effect is more preferable, more Conducive to protection measuring terminal, the service life is longer for measuring terminal.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the low-voltage distribution surge protector side view of the utility model.
Specific embodiment
With reference to the accompanying drawing and the utility model is described further in specific embodiment.
Embodiment 1: as Figure 1-Figure 2, a kind of lightning protection device for measuring terminal, the voltage including measuring terminal draws Enter terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3, zero line side sub-aperture and the grounding terminal sub-aperture of side, terminals Sub-aperture L1, terminals sub-aperture L2 and terminals sub-aperture L3 are zero line sub-aperture, terminals sub-aperture L1, terminals sub-aperture L2, are connect Line end sub-aperture L3 and zero line side sub-aperture are respectively connected with a low-voltage distribution surge protector, each low-voltage distribution surge protector Ground terminal and grounding terminal sub-aperture are connected to ground, and four low-voltage distribution surge protectors are fixedly connected in orbit, convenient for connecing Wire box structure is more compact, is equipped with switch on the end of incoming cables of each low-voltage distribution surge protector.
The utility model can prevent direct-type to be struck by lightning: when being struck by lightning, what measuring terminal was easiest to is electric into thunder channel Source part there is not installation low-voltage distribution surge protector on road on front side of the introducing of measuring terminal voltage, realizes multipath aerial drainage, this Sample can guarantee lightning stroke when, thunder resisting equipment once discharges, secondary protection is done inside measuring terminal, as far as possible guarantee terminal from Source side will not damage when introducing.
The utility model can prevent induction type to be struck by lightning:, can be online when thunder and lightning hits power grid or power grid is nearby struck by lightning Road generates lightning surge, and the transient electromagnetic field of thunder and lightning can incude on signal line and its circuit and generate overvoltage, damage Corresponding interface circuit, the damage that induction type can be prevented to be struck by lightning by the thunder resisting equipment of the utility model
Example above description is only a specific implementation of the present invention, the protection scope of the utility model not office It is limited to this.Be familiar with the those skilled in the art within the technical scope disclosed by the utility model, can easily find variation or Alternative, these should be covered within the scope of the utility model.For this purpose, the protection scope of the utility model should be with Subject to the scope of protection of the claims.

Claims (3)

1. a kind of lightning protection device for measuring terminal, it is characterised in that: the terminals of the voltage introducing side including measuring terminal Sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3, zero line side sub-aperture and grounding terminal sub-aperture, terminals sub-aperture L1, terminals Sub-aperture L2 and terminals sub-aperture L3 is zero line sub-aperture, terminals sub-aperture L1, terminals sub-aperture L2, terminals sub-aperture L3 and zero Line end sub-aperture is respectively connected with a low-voltage distribution surge protector, the ground terminal and ground line of each low-voltage distribution surge protector Terminal hole is connected to ground.
2. a kind of lightning protection device for measuring terminal according to claim 1, it is characterised in that: four low-voltage distribution electricity Surge protector is fixedly connected in orbit.
3. a kind of lightning protection device for measuring terminal according to claim 1, it is characterised in that: each low-voltage distribution electricity Switch is installed on the end of incoming cables of surge protector.
CN201821857217.4U 2018-11-12 2018-11-12 A kind of lightning protection device for measuring terminal Active CN209267171U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821857217.4U CN209267171U (en) 2018-11-12 2018-11-12 A kind of lightning protection device for measuring terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821857217.4U CN209267171U (en) 2018-11-12 2018-11-12 A kind of lightning protection device for measuring terminal

Publications (1)

Publication Number Publication Date
CN209267171U true CN209267171U (en) 2019-08-16

Family

ID=67554542

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821857217.4U Active CN209267171U (en) 2018-11-12 2018-11-12 A kind of lightning protection device for measuring terminal

Country Status (1)

Country Link
CN (1) CN209267171U (en)

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