CN207782491U - A kind of cable bushing circular current sensing electricity getting device - Google Patents

A kind of cable bushing circular current sensing electricity getting device Download PDF

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Publication number
CN207782491U
CN207782491U CN201820158555.2U CN201820158555U CN207782491U CN 207782491 U CN207782491 U CN 207782491U CN 201820158555 U CN201820158555 U CN 201820158555U CN 207782491 U CN207782491 U CN 207782491U
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Prior art keywords
side winding
rectification circuit
secondary side
iron core
electricity getting
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CN201820158555.2U
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阮江军
唐烈峥
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Wuhan University WHU
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Wuhan University WHU
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Abstract

The utility model is related to power cable on-line monitoring equipment power supply techniques, and in particular to a kind of cable bushing circular current sensing electricity getting device, including it is wound with the iron core 3 and rectification circuit 4 of first side winding 1 and secondary side winding 2;First side winding 1 seals in the cross interconnected line of cable accessory or is directly grounded line, and secondary side winding 2 connects rectification circuit 4, and circulating current in sheath flows through first side winding 1, electric energy is transmitted to secondary side by 2 magnetic coupling of iron core, DC voltage is obtained by rectification circuit 4.The device can waterproof, defence external force destroy, it is securely and reliably, simple and convenient without additional fixed.

Description

A kind of cable bushing circular current sensing electricity getting device
Technical field
The utility model belongs to power cable on-line monitoring equipment power supply technique field more particularly to a kind of cable protection lantern ring Flow sensing electricity getting device.
Background technology
Numerous studies have been carried out to the on-line monitoring of transmission line of electricity and fault diagnosis technology both at home and abroad, it is more and more online Monitoring device appears on transmission line of electricity, such as cable temp measuring system etc..But for the research of on-line monitoring equipment powerup issue Relatively fewer.
Currently, the common power supply mode of on-line monitoring equipment includes storage battery power supply, solar powered, laser powered sensor and mother Line is powered these four modes.Accumulator is to design most simple most direct power supply mode, but service life is unavoidable Limitation, because being frequently necessary to replace battery and expend a large amount of manpower and materials.Although solar powered be not present life problems, in electricity Also there are certain applications in Force system, but one is that such power supply cannot be in the insufficient area use of night and sunlight, this limits it and answers Popularity;Second is that the dust of long-term accumulation can weaken the intensity of input solar energy on solar panel, it is allowed to lack and exempts to tie up for a long time Shield ability;Third, this power supply has its unstability, this is determined by the intrinsic defect of solar cell;Fourth, solar-electricity Pond transfer efficiency is low so that the finite energy that this method provides.Laser power supply refers to low from ground using laser or other light sources Current potential side by optical fiber by Light energy transfer to hot side, then by electrooptical device(Photocell)Electric energy is converted light energy into, Finally stable power supply is provided by DC-DC converter to export.This method by laser output power due to being limited, especially The cost is relatively high for the influence of photocell transfer efficiency, the finite energy provided, while its requirement.Bussed supply refers to from height Electric energy is directly extracted on pressure busbar to use for harvester, study at present more is by transformer principle by bus current It is converted into secondary current or voltage, CN105226732A discloses the draw-out power supply circuit of cable temperature monitoring device, including set Taking energy coil on cable, the current rectifying and wave filtering circuit being connect with the secondary winding of taking energy coil connect with current rectifying and wave filtering circuit The Voltage stabilizing module connect and the super capacitor of pre- Voltage stabilizing module connection.Such power supply directly obtains energy from high voltage transmission line road Amount, source is easy, not to the utmost with it, but for the more complicated cable of running environment, how to carry out waterproof, anti-machine to electricity getting device It is also people's concern that tool, which destroys processing,.
Utility model content
In consideration of it, the purpose of this utility model is to provide a kind of cable bushing circular current sensing electricity getting device, which is located at In cross interconnected case or grounding box, using babinet as protection shell, play the role of waterproof, anti-external force is destroyed.
To achieve the above object, the technical solution adopted in the utility model is:
A kind of cable bushing circular current sensing electricity getting device include be wound with first side winding and secondary side winding iron core and Rectification circuit, first side winding seal in the cross interconnected line of cable accessory or are directly grounded line, and secondary side winding connects rectified current Road, circulating current in sheath flow through first side winding, by iron core magnetic coupling interaction, electric energy are transmitted to secondary side, passes through rectification Obtain DC voltage.
Further, iron core and rectification circuit are positioned in cross interconnected case or grounding box.
The utility model has the beneficial effects that:Sensing electricity getting device is installed in cross interconnected case or grounding box, babinet tool There is protective cover, waterproof, anti-external force is destroyed, and is fixed without additional, securely and reliably, simple and convenient.
Description of the drawings
Fig. 1 is the insulating joint circulating current in sheath sensing electricity getting device electrical connection signal that the utility model embodiment provides Figure;
Fig. 2 is the straight coupling circulating current in sheath sensing electricity getting device electrical connection signal that the utility model embodiment provides Figure;
Fig. 3 is the cable termination circulating current in sheath sensing electricity getting device electrical connection signal that the utility model embodiment provides Figure.
Wherein:1- first side windings, 2- secondary side windings, 3- iron cores, 4- rectification circuits, 5- protective metal shells, 6- intersect mutual On line, 7- insulating joints, 8- insulating washers, the cross interconnected casees of 9-, 10- grounding boxes, 11- straight couplings, 12- are directly grounded line, 13- cable terminations.
Fig. 4 is the sensing electricity getting device structural schematic diagram that the utility model embodiment provides.
Wherein, 2- secondary side windings, 3- iron cores, 4- rectification circuits, 14- metallic shield leads, 15- busbars, 16- intersect Mutual header.
Specific implementation mode
The embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
What the present embodiment was achieved through the following technical solutions, a kind of suspension electricity getting device packet of cable bushing circular current power supply The iron core and rectification circuit for being wound with first side winding and secondary side winding are included, the intersection that first side winding seals in cable accessory is mutual On line is directly grounded line, and secondary side winding connects rectification circuit, and circulating current in sheath flows through first side winding, passes through iron core magnetic coupling Effect, is transmitted to secondary side by electric energy, can be obtained DC voltage by rectification.
Also, iron core and rectification circuit are positioned in cross interconnected case or grounding box.
The insulating joint circulating current in sheath sensing electricity getting device electrical connection that Fig. 1 show the utility model embodiment offer is shown It is intended to, the insulating washer 8 of insulating joint 7 separates protective metal shell 5, and circulating current in sheath is reduced using cross interconnected Contact patch, The embodiment includes being wound with the iron core 3 and rectification circuit 4 of first side winding 1 and secondary side winding 2;First side winding 1 seals in The cross interconnected line 6 of insulating joint 7, secondary side winding 2 connect rectification circuit 4, and it is mutual that iron core 3 and rectification circuit 4 are positioned over intersection In header 9.Wherein first side winding 1 is 30 circles, and secondary side winding 2 is 300 circles, and iron core 3 selects silicon steel sheet, and sectional area is 0.01m2, rectification circuit 4 is using bridge full-wave rectifier.
The straight coupling circulating current in sheath sensing electricity getting device electrical connection that Fig. 2 show the utility model embodiment offer is shown It is intended to, the protective metal shell 5 of 11 the right and left of straight coupling is electrically to be connected with each other, using the earthing mode being directly grounded, The embodiment includes being wound with the iron core 3 and rectification circuit 4 of first side winding 1 and secondary side winding 2;First side winding 1 seals in Straight coupling 11 is directly grounded line 12, and secondary side winding 2 connects rectification circuit 4, and iron core 3 and rectification circuit 4 are positioned over ground connection In case 10.Wherein first side winding 1 is 40 circles, and secondary side winding 2 is 350 circles, and iron core 3 selects silicon steel sheet, and sectional area is 0.015m2, rectification circuit 4 is using halfwave rectifier.
The cable termination circulating current in sheath sensing electricity getting device electrical connection that Fig. 3 show the utility model embodiment offer is shown It is intended to, the protective metal shell 5 of cable termination 13 is using the earthing mode being directly grounded, including is wound with first side winding 1 and secondary The iron core 3 and rectification circuit 4 of side winding 2;What first side winding 1 sealed in straight coupling 11 is directly grounded line 12, secondary side winding 2 Rectification circuit 4 is connected, iron core 3 and rectification circuit 4 are positioned in grounding box 10.Wherein first side winding 1 be 50 circles, secondary side around Group 2 is 500 circles, and iron core 3 selects silicon steel sheet, sectional area 0.02m2, rectification circuit 4 is using full-wave rectification.
As shown in figure 4, being sensing electricity getting device structural schematic diagram, insulated wire generation is used in cross interconnected case 16 or grounding box For busbar 15, as metal screen layer lead 14, then metallic shield lead 14 is wound in 3 side of iron coreN 1Circle, as First side winding 1, other side windingN 2Circle, as secondary side winding 2,2 output end of secondary side winding connects rectification circuit 4.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
Although describing specific embodiment of the present utility model, those of ordinary skill in the art above in association with attached drawing It should be appreciated that these are merely examples, various deformation or modification can be made to these embodiments, without departing from this practicality Novel principle and essence.The scope of the utility model is only limited by the claims that follow.

Claims (2)

1. a kind of cable bushing circular current sensing electricity getting device, it is characterized in that:
Iron core (3) and rectification circuit (4) including being wound with first side winding (1) and secondary side winding (2);The primary side around Group (1) seals in the cross interconnected line of cable accessory or is directly grounded line, secondary side winding (2) the connection rectification circuit (4).
2. a kind of cable bushing circular current sensing electricity getting device as described in claim 1, it is characterized in that:
The iron core (3) and the rectification circuit (4) are positioned in cross interconnected case or grounding box.
CN201820158555.2U 2018-01-30 2018-01-30 A kind of cable bushing circular current sensing electricity getting device Active CN207782491U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820158555.2U CN207782491U (en) 2018-01-30 2018-01-30 A kind of cable bushing circular current sensing electricity getting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820158555.2U CN207782491U (en) 2018-01-30 2018-01-30 A kind of cable bushing circular current sensing electricity getting device

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CN207782491U true CN207782491U (en) 2018-08-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111884175A (en) * 2020-08-06 2020-11-03 天津大学 High-voltage cable metal sheath grounding circulation restraining method based on electromagnetic coupling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111884175A (en) * 2020-08-06 2020-11-03 天津大学 High-voltage cable metal sheath grounding circulation restraining method based on electromagnetic coupling method

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