CN204793621U - Lightning arrester with tally function - Google Patents

Lightning arrester with tally function Download PDF

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Publication number
CN204793621U
CN204793621U CN201520417288.2U CN201520417288U CN204793621U CN 204793621 U CN204793621 U CN 204793621U CN 201520417288 U CN201520417288 U CN 201520417288U CN 204793621 U CN204793621 U CN 204793621U
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CN
China
Prior art keywords
lightning arrester
counter
arrester body
electrode
tally function
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Active
Application number
CN201520417288.2U
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Chinese (zh)
Inventor
靳国青
王临铭
刘霞
杨晓平
孙阳
申烨
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NANYANG JINNIU ELECTRIC CO Ltd
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NANYANG JINNIU ELECTRIC CO Ltd
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Priority to CN201520417288.2U priority Critical patent/CN204793621U/en
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Publication of CN204793621U publication Critical patent/CN204793621U/en
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Abstract

The utility model discloses a lightning arrester with tally function mainly uses on built on stilts insulated wire, be equipped with insulator and puncture fastener electrode on the built on stilts insulated wire, lightning arrester includes arrester with series gaps and support, arrester with series gaps be by lightning arrester body and with lightning arrester body one end keeps the puncture fastener electrode of certain distance to form, the lightning arrester body other end passes through the support mounting is in one side of insulator, the last counter that still is connected with of lightning arrester body, just lightning arrester body with the counter is established as an organic wholely. Compared with the prior art, the utility model is not only simple in structure, the cost is lower, and the ageing of lightning arrester body and cracking have been avoided moreover to the installation and maintenance of being convenient for, have strengthened lightning arrester body's life, the arrester with series gaps who uses because gapped distance, even when lightning arrester body breaks down, can influence device normal operating yet.

Description

A kind of lightning arrester with tally function
Technical field
The utility model relates to electrical equipment technical field, is specifically related to a kind of lightning arrester with tally function.
Background technology
At present, generally adopt suspended insulated guide wire at medium voltage power lines, under lightning overvoltage effect, once over the ground after flashover, can there is the situation flowing through power frequency continued flow along breakdown channel in suspended insulated guide wire.Because the external insulation of wire limits, power frequency continued flow is very easily fixed on a certain position and continues calcination wire, cause harness damage, wire fracture accident can be there is time serious, present use arrester with series gaps can after lightning overvoltage, cut off power frequency continued flow, prevent the generation of insulated overhead conductor fracture accident.In order to understand the conservation status of lightning arrester to power circuit further; take the measure of lightning arrester on-line monitoring; during detection, selectable feature physical quantity is more; wherein current in resistance property can reflect the running status of lightning arrester well, and the result that can change according to its current in resistance property and harmonic component thereof judges the performance of lightning arrester.When lightning arrester deterioration, resistive current first harmonics component increases sharply, but when lightning arrester is aging, current in resistance property 3 order harmonic components value increases fast.
But great majority do not take on-line monitoring measure at the arrester with series gaps of network operation, cannot realize carrying out on-line monitoring to arrester with series gaps action frequency.Minority adopts traditional split type counter to carry out on-line monitoring at the arrester with series gaps of network operation, install complicated, maintenance inconvenience, and cost is higher.
Summary of the invention
For addressing the aforementioned drawbacks, the purpose of this utility model is to provide a kind of lightning arrester with tally function, and structure is simple, and cost reduces, and installation and maintenance are more convenient, can realize carrying out on-line checkingi to the action frequency of arrester with series gaps.
For achieving the above object, the technical solution adopted in the utility model is: a kind of lightning arrester with tally function, be mainly used on suspended insulated guide wire, described suspended insulated guide wire is provided with insulator and penetrating cable clamp electrode, described lightning arrester comprises arrester with series gaps and support, described arrester with series gaps keeps the penetrating cable clamp electrode of certain distance to form by lightning arrester body and with described lightning arrester body one end, the described lightning arrester body other end passes through described support installing in the side of described insulator, described lightning arrester body is also connected with counter, and described lightning arrester body and described counter are set to one.
Preferably, described lightning arrester body and described counter are set to one by the encapsulation of silicon rubber composite sheath.
The insulating material that described lightning arrester body comprises core body and is wrapped in described core body outside is made, and described core body to be connected a piezoresistive wafer composition by metal oxide resistance, and described piezoresistive wafer both sides are respectively equipped with electrode I and electrode II; Described insulating material adopts glass fiber reinforced epoxy resin, or nylon, or enhancement mode unsaturated polyester (UP) is made.
Described counter comprises counter body, bridge rectifier unit and inductance coil, described bridge rectifier unit two ends are connected with electrode II with the electrode I of described core body respectively, and described bridge rectifier unit is parallel with capacitor and inductance coil respectively, described capacitor is by forming magnetic field, this body action of counter described in adhesive to described inductance coil electric discharge.
The utility model in use, when there is lightning overvoltage in suspended insulated guide wire, piezoresistive wafer below the core body of described lightning arrester body forms the impulse current with certain amplitude and waveform, impulse current is rectified into direct current by described bridge rectifier unit, and capacitor is charged, capacitor is by forming magnetic field to inductance coil electric discharge, realize the action of adhesive counter body, thus count 1 time, through detection after a while, judge that the performance of lightning arrester body is good and bad by the frequency of counter action.
The beneficial effects of the utility model are: described lightning arrester body and described counter are set to one by the encapsulation of silicon rubber composite sheath, not only structure is simple, cost is lower, be convenient to installation and maintenance, and avoid the aging of lightning arrester body and cracking, enhance the useful life of lightning arrester body; By lightning arrester body and the arrester with series gaps that forms with penetrating cable clamp electrode; lightning protection for suspended insulated guide wire has good effect; described lightning arrester body only just bears the effect of power-frequency voltage when gap discharge; owing to there being the distance in gap; even if when lightning arrester body breaks down, still normally run without influential system, reliability is high; service life is long, and transmission line lightning protection is developed rapidly.
Accompanying drawing explanation
Below with reference to the accompanying drawings and embodiment, structure of the present utility model and feature are further described.
Fig. 1 is structural representation of the present utility model.
Fig. 2 be lightning arrester body described in the utility model and described counter be set to one time structural representation.
Fig. 3 is the structural representation of lightning arrester body described in the utility model.
Fig. 4 is the fundamental diagram of lightning arrester body described in the utility model and described counter.
In Fig. 1, Fig. 2, Fig. 3 and Fig. 4,1. lightning arrester body, 2. insulator, 3. suspended insulated guide wire, 4. penetrating cable clamp electrode, 5. support, 6. counter, 7. silicon rubber composite sheath, 8. core body, 9. electrode I, 10. piezoresistive wafer, 11. electrodes II, 12. metal oxide resistances, 13. insulating material, 14. bridge rectifier unit, 15. capacitors, 16. inductance coils, 17. counter bodies.
Embodiment
Referring to Fig. 1, Fig. 2, in Fig. 3 and Fig. 4, a kind of lightning arrester with tally function, be mainly used on suspended insulated guide wire, described suspended insulated guide wire 3 is provided with insulator 2 and penetrating cable clamp electrode 4, described lightning arrester comprises arrester with series gaps and support 5, described arrester with series gaps keeps the penetrating cable clamp electrode 4 of certain distance to form by lightning arrester body 1 and with described lightning arrester body 1 one end, described lightning arrester body 1 other end is arranged on the side of described insulator 2 by described support 5, described lightning arrester body 1 is also connected with counter 6, and described lightning arrester body 1 is set to one with described counter 6 by the encapsulation of silicon rubber composite sheath 7.
The insulating material 13 that described lightning arrester body 1 comprises core body 8 and is wrapped in described core body 8 outside is made, described core body 1 consists of metal oxide resistance 12 piezoresistive wafer 10 of connecting, and described piezoresistive wafer 10 both sides are respectively equipped with 9 electrode I and 11 electrodes II; Described insulating material 13 adopts glass fiber reinforced epoxy resin, or nylon, or enhancement mode unsaturated polyester (UP) is made.
Described counter 6 comprises counter body 17, bridge rectifier unit 14 and inductance coil 16, described bridge rectifier unit 14 two ends are connected with 11 electrodes II with 9 electrodes I of described core body respectively, and described bridge rectifier unit 14 is parallel with capacitor 15 and inductance coil 16 respectively, described capacitor 15 forms magnetic field, counter body 17 action described in adhesive by discharging to described inductance coil 16.
The utility model in use, when there is lightning overvoltage in suspended insulated guide wire 3, piezoresistive wafer 10 below described core body 8 forms the impulse current with certain amplitude and waveform, impulse current is rectified into direct current by described bridge rectifier unit 14, and capacitor 15 is charged, capacitor 15 forms magnetic field by discharging to inductance coil 16, realize the action of adhesive counter body 17, thus count 1 time, through detection after a while, judge that the performance of lightning arrester body is good and bad by the frequency of this body action of counter.
Lightning arrester body described in the utility model and described counter are set to one by the encapsulation of silicon rubber composite sheath, not only structure is simple, and cost is lower, is convenient to installation and maintenance, and avoid the aging of lightning arrester body and cracking, enhance the useful life of lightning arrester body; By lightning arrester body and the arrester with series gaps that forms with penetrating cable clamp electrode; lightning protection for suspended insulated guide wire has good effect; described lightning arrester body only just bears the effect of power-frequency voltage when gap discharge; owing to there being the distance in gap; even if when lightning arrester body breaks down, still can not normally run by influential system, reliability is high; service life is long, and transmission line lightning protection is developed rapidly.
Described above is only preferred embodiment of the present utility model; above-mentioned specific embodiment is not to restriction of the present utility model; all those of ordinary skill in the art, according to describing retouching, the amendment made above or equivalent replacing, all belong to protection range of the present utility model.

Claims (4)

1. one kind has the lightning arrester of tally function, be mainly used on suspended insulated guide wire, it is characterized in that: described suspended insulated guide wire is provided with insulator and penetrating cable clamp electrode, described lightning arrester comprises arrester with series gaps and support, described arrester with series gaps keeps the penetrating cable clamp electrode of certain distance to form by lightning arrester body and with described lightning arrester body one end, the described lightning arrester body other end passes through described support installing in the side of described insulator, described lightning arrester body is also connected with counter, and described lightning arrester body and described counter are set to one.
2. the lightning arrester with tally function according to claim 1, is characterized in that: described lightning arrester body and described counter are set to one by the encapsulation of silicon rubber composite sheath.
3. the lightning arrester with tally function according to claim 1, it is characterized in that: the insulating material that described lightning arrester body comprises core body and is wrapped in described core body outside is made, described core body by metal oxide resistance connect one piezoresistive wafer composition, described piezoresistive wafer both sides are respectively equipped with electrode I and electrode II; Described insulating material adopts glass fiber reinforced epoxy resin, or nylon, or enhancement mode unsaturated polyester (UP) is made.
4. the lightning arrester with tally function according to claim 1, it is characterized in that: described counter comprises counter body, bridge rectifier unit and inductance coil, described bridge rectifier unit two ends are connected with electrode II with the electrode I of described core body respectively, and described bridge rectifier unit is parallel with capacitor and inductance coil respectively, described capacitor is by forming magnetic field, this body action of counter described in adhesive to described inductance coil electric discharge.
CN201520417288.2U 2015-06-17 2015-06-17 Lightning arrester with tally function Active CN204793621U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520417288.2U CN204793621U (en) 2015-06-17 2015-06-17 Lightning arrester with tally function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520417288.2U CN204793621U (en) 2015-06-17 2015-06-17 Lightning arrester with tally function

Publications (1)

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CN204793621U true CN204793621U (en) 2015-11-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104901168A (en) * 2015-06-17 2015-09-09 南阳金牛电气有限公司 Lightning arrester with counting function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104901168A (en) * 2015-06-17 2015-09-09 南阳金牛电气有限公司 Lightning arrester with counting function

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