CN202454364U - Composite sleeve metal oxide lightning arrester - Google Patents

Composite sleeve metal oxide lightning arrester Download PDF

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Publication number
CN202454364U
CN202454364U CN2012200259972U CN201220025997U CN202454364U CN 202454364 U CN202454364 U CN 202454364U CN 2012200259972 U CN2012200259972 U CN 2012200259972U CN 201220025997 U CN201220025997 U CN 201220025997U CN 202454364 U CN202454364 U CN 202454364U
Authority
CN
China
Prior art keywords
metal oxide
lightning
lightning arrester
insulating sleeve
valve block
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2012200259972U
Other languages
Chinese (zh)
Inventor
刘慧洁
修明巍
宋雅男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIAONING HUALONG ELECTRIC TECHNOLOGY INCORPORATED COMPANY
Original Assignee
Liaoning Hualong Electric Power Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaoning Hualong Electric Power Technology Co Ltd filed Critical Liaoning Hualong Electric Power Technology Co Ltd
Priority to CN2012200259972U priority Critical patent/CN202454364U/en
Application granted granted Critical
Publication of CN202454364U publication Critical patent/CN202454364U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides a composite sleeve metal oxide lightning arrester. An insulating ring forming a discharging clearance is connected between one end of a metal oxide resistance valve plate in an insulating sleeve of a lightning arresting core body and an internal pole end of a corresponding binding post. According to the technical scheme, leakage current generated by the metal oxide resistance valve plate normally connected with the lightning arrester in a working system line is cut off by the insulating ring used as the discharging clearance, so that potential safety hazards in the system line connection are eliminated and the service life of the lightning arrester is greatly prolonged.

Description

Polymeric metal oxide surge arrester
Technical field
The utility model relates to the metal oxide arrester that is installed in generating circuit, transmission line, power transformation or the distribution line system.
Background technology
Metal oxide arrester is made up of the binding post that the metal oxide resistor valve block that is built in insulating sleeve constitutes lightning-arrest core body and lightning-arrest core body two ends stube cable jointly.This lightning arrester is installed in the system line; The lightning-arrest valve block of metal oxide resistor is bearing system line transmission voltage, overvoltage, harmonic voltage burden all the time; And with small leakage current; The existence of leakage current can produce certain heating, has both influenced the lighting protection performance, so also shortened the useful life of the lightning-arrest valve block of resistance.
Summary of the invention
The goal of the invention of the utility model is to provide a kind of can thoroughly block the polymeric metal oxide surge arrester that lightning arrester is connected in the leakage current in the system line.The polymeric metal oxide surge arrester technical scheme that the utility model provides; Its major technique content is: mold pressing is connected with the dead ring of formation discharging gap between a kind of polymeric metal oxide surge arrester, an end of the metal oxide resistor valve block in the insulating sleeve of lightning-arrest core body and corresponding wiring terminal interior extreme.
In above-mentioned overall technical architecture, disconnector laterally embeds insulating sleeve, and the electrode tip that disconnector embeds in the insulating sleeve extremely is connected with the binding post of the other end of metal oxide resistor valve block is interior.
In above-mentioned overall technical architecture, the upper connecting terminal of lightning-arrest core body is a penetrating cable clamp type binding post.
The polymeric metal oxide surge arrester that the utility model provides is connected in the operate as normal system line; Wherein discharging gap dead ring has blocked that the metal oxide resistor valve block is born system line voltage and the possibility that produces leakage current; Lightning arrester is effectively prolonged useful life; Its discharging gap dead ring is conducting when the experience thunderbolt is breakdown only; The voltage that will be struck by lightning puts on the metal oxide resistor valve block, relies on the non-linear voltage-current characteristic performance system line lightning protection effect of metal oxide resistor valve block, thereby has got rid of the potential safety hazard in its system line connection.
Description of drawings
Accompanying drawing is the structure construction figure of this polymeric metal oxide surge arrester.
Embodiment
The disclosed polymeric metal oxide surge arrester of present technique scheme; Its structure is shown in accompanying drawing; Be provided with metal oxide resistor valve block 2 in the high strength insulating sleeve 4 of its lightning-arrest core body 1; The upper end of interior metal oxide resistor valve block 2 and corresponding wiring terminal interior extreme 5 between also mold pressing be connected with dead ring 3, this dead ring 3 is processed by high strength, high voltage insulating materials, as is epoxy fibreglass ring, SMC ring, DMC ring, high strength china ring etc.; Between binding post and metal oxide resistor valve block 2, form discharging gap, the height of this dead ring depends on the discharge voltage value.Insulating sleeve 4 surface sulfurations have silicon rubber insulation full skirt outer 7.Interior extreme 5 of the binding post penetrating cable clamp 6 that is threaded, cable just need not broken string like this, and the completion lightning arrester connects under the cable status not damaging, and is easy to guarantee to be electrically connected the reliability of performance.
Occur to cut out system line automatically when electric property is bad in order to be implemented in reach capacity useful life or its of lightning arrester; In this enforcement structure, also increase disconnector 9 is arranged; This disconnector 9 laterally embeds insulating sleeve 4; Electrode tip in the disconnector 9 embedding insulating sleeves 4 is connected with interior extreme 8 of the binding post 10 of metal oxide resistor valve block 2 other ends, and when above-mentioned state occurring, this disconnector explodes immediately; Produce tangible circuit and connect breakpoint, this lightning arrester is cut out system line from the state of putting into operation.

Claims (3)

1. mold pressing is connected with the dead ring (3) of formation discharging gap between polymeric metal oxide surge arrester, an end that it is characterized in that the metal oxide resistor valve block (2) in the insulating sleeve of lightning-arrest core body and interior extreme (5) of corresponding wiring terminal.
2. polymeric metal oxide surge arrester according to claim 1; It is characterized in that the other end of lightning-arrest core body is provided with the disconnector (9) of horizontal embedding insulating sleeve, the electrode tip that disconnector embeds in the insulating sleeve is connected with the binding post of metal oxide resistor valve block interior extreme (8).
3. polymeric metal oxide surge arrester according to claim 1 and 2 is characterized in that the upper connecting terminal of lightning-arrest core body is a penetrating cable clamp type binding post.
CN2012200259972U 2012-01-19 2012-01-19 Composite sleeve metal oxide lightning arrester Expired - Lifetime CN202454364U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012200259972U CN202454364U (en) 2012-01-19 2012-01-19 Composite sleeve metal oxide lightning arrester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012200259972U CN202454364U (en) 2012-01-19 2012-01-19 Composite sleeve metal oxide lightning arrester

Publications (1)

Publication Number Publication Date
CN202454364U true CN202454364U (en) 2012-09-26

Family

ID=46870206

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012200259972U Expired - Lifetime CN202454364U (en) 2012-01-19 2012-01-19 Composite sleeve metal oxide lightning arrester

Country Status (1)

Country Link
CN (1) CN202454364U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110033909A (en) * 2019-03-25 2019-07-19 南方电网科学研究院有限责任公司 A kind of arrester

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110033909A (en) * 2019-03-25 2019-07-19 南方电网科学研究院有限责任公司 A kind of arrester

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: LIAONING HUALONG POWER TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: LIAONING HUALONG ELECTRIC POWER TECHNOLOGY CO., LTD.

CP03 Change of name, title or address

Address after: 118303, No. 88, ring road, Zhenxing District, Liaoning, Dandong

Patentee after: LIAONING HUALONG ELECTRIC TECHNOLOGY INCORPORATED COMPANY

Address before: 118008 Dandong province Zhenxing District, Liaoning Road, No. 277

Patentee before: LIAONING HUALONG ELECTRIC POWER TECHNOLOGY CO., LTD.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20120926