CN205941662U - Full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy - Google Patents
Full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy Download PDFInfo
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- CN205941662U CN205941662U CN201620861451.9U CN201620861451U CN205941662U CN 205941662 U CN205941662 U CN 205941662U CN 201620861451 U CN201620861451 U CN 201620861451U CN 205941662 U CN205941662 U CN 205941662U
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- relay
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- spark gap
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- 238000005259 measurement Methods 0.000 title claims abstract description 27
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 238000005538 encapsulation Methods 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 29
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 239000012212 insulator Substances 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 230000001174 ascending effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000012357 Gap analysis Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy, including lightning arrester body, counter and insulating pillar, its characterized in that: still include relay encapsulation box and wiring end encapsulation box, relay encapsulation box, counter and wiring end encapsulation box are established ties with insulated wire through connecting. The utility model discloses preparation simple process, maneuverability is strong, and low cost can realize leakage current of an arrester's measurement many times, has the characteristics that repeatability was used, can effectively guarantee the carrying leakage current of an arrester to test instrument of furthest, realize test loop's switching, pass test the result relatively, realize two aassessments of arrester and leakage current table running behaviour, and the installation method is simple, uses swiftly, and maneuverability is strong, and construction intensity is little, is applicable to and uses widely on a large scale.
Description
Technical field
This utility model belongs to power system power transmission and transformation professional skill field, is related to spark gap total current measurement wiring dress
Put, especially a kind of high-efficiency high-accuracy may compare formula architected spark gap total current measurement termination.
Background technology
At present, the spark gap being installed on framework is carried out in test process, and wiring is relatively complicated, operation of need to ascending a height, and has
Certain potential safety hazard；Measuring accuracy is subject to connection circuit contact resistance and enumerator partial pressure performance impact larger.Existing wiring
Method is：Copper conductor between test instrunment input and counter of lightning arrester and spark gap metal fixed end part is connected, from
And by operating for spark gap total current input test instrument.But there are several point defects as follows in this process：
1) spark gap framework is higher, needs staff to ascend a height and carries out test loop connection, this process exists on spark gap
Portion's live part is dangerous to human body discharge；
2) because the copper conductor between counter of lightning arrester and spark gap metal fixed end part is chronically under exposed environments,
And test process wiring at copper conductor takes total current, therefore can not carry out preservative insulation-encapsulated process to copper conductor, cause
The problem of seriously corroded.Lead to connect copper conductor corrosion wire breakage, cause spark gap to disconnect with the earth, cause spark gap lost territory, electricity
Gas equipment is in unprotect state, threatens electrical equipment safety；
3) counter of lightning arrester has thousands of Europe, the internal resistance of the counter of lightning arrester of distinct device manufacturer production under normal circumstances
Value is different, and spark gap internal resistance in theory is far longer than test instrunment internal resistance it is ensured that the leakage current of an arrester overwhelming majority is defeated
Enter test instrunment.But because counter of lightning arrester longtime running is in open air, surface contamination is serious and there is enumerator inner inlet
May, above-mentioned two reasons all may result in enumerator equivalent internal resistance to reduce, and leads to the shunting of test process Counter loop larger, no
Can guarantee that leakage current overwhelming majority input test instrument, had a strong impact on measuring accuracy, be spark gap analysis of running performance band
Having carried out erroneous judgement may.
Utility model content
In place of the purpose of this utility model is to overcome the deficiencies in the prior art, provides one kind to be prevented effectively from copper conductor and break
Line, prevents spark gap and is in lost territory state, and the spark gap total current measurement wiring dress of efficient protection electric equipment operation safety
Put.
This utility model solves above-mentioned technical problem and takes technical scheme below to realize：
A kind of high-efficiency high-accuracy may compare formula architected spark gap total current measurement termination, including lightning arrester body,
Enumerator and insulation column, described lightning arrester body is sequentially coaxially concatenated by several full skirts and forms, on the full skirt on top
End is provided with high-voltage terminal, is coaxially connected with insulator foot in the full skirt lower end of end by connecting portion, and this insulator foot is same
Axle is installed architecturally, also includes relay package box and terminals enclosure, this relay package box and terminals enclosure
It is connected in the middle part of framework by being fixedly connected part, described relay package box, enumerator and terminals enclosure are passed through to connect
Connected with insulated conductor, this connection insulated conductor one end is connected in the spark gap metal fixing end on connecting portion, the other end
Connect continuous earth end.
And, described relay package box includes relay package box body, is arranged in relay package box body
Relay coil, relay normally-closed contact and relay coil contact, connection passes through described relay package with insulated conductor
Relay normally-closed contact described in cassette in series, is connected with the insulation column being arranged on described enumerator front end, in described relay envelope
In mounted box, it is in parallel with described relay normally-closed contact that connection insulated conductor is passed through in relay coil contact.
And, described relay normally-closed contact includes relay first normally-closed contact and relay second normally-closed contact,
Described relay coil contact includes relay first coil contact and relay the second coil contact, described relay
One normally-closed contact is connected with relay second normally-closed contact, and described relay first coil contact is touched with relay second coil
Point series connection, described relay coil is connected between described relay first coil contact and relay the second coil contact, institute
State relay second normally-closed contact to be connected with the insulation column of described enumerator front end by connection insulated conductor.
And, described terminals enclosure includes terminals encapsulation box body and is arranged on this terminals encapsulation box body
Interior three described insulation columns, high precision measurement connection terminal and common test connection terminal, connects and uses insulated conductor one end
The insulation column of linkage counter, the other end connects continuous earth after passing through described terminals encapsulation cassette in series the 3rd insulation column
End, in described terminals enclosure, the first insulation column passes through the relay in connection insulated conductor and relay package box
Device the second coil contact portion, the second insulated column passes through connection insulated conductor and passes through relay package box solid with spark gap metal
Fixed end connects, and described high precision measurement connection terminal is connected with the first described insulation column, and described common test connects
Terminal is connected with the second described insulation column.
Advantage of the present utility model and having the beneficial effect that：
1st, this utility model is provided with relay package box and the terminals enclosure of insulation and obturation, by relay and test
Circuit connection terminal is installed in enclosure, and not exposed to the weather affects, and metal erosion degree is relatively low；And spark gap is counted
Copper conductor between device and spark gap metal fixed end part has carried out insulation-encapsulated process, effectively prevent copper conductor broken string, Du
Absolutely spark gap is in lost territory state, effective protection electric equipment operation safety, reduce damage, frequency of maintenance, effectively reduce
Cost.
2nd, this device is mounted with terminals enclosure below spark gap framework, facilitates staff that loop is surveyed
Examination, ascend a height operation without staff, it is to avoid staff causes security threat because ascending a height operation, and test has been effectively ensured
Process personnel's safety, time saving and energy saving, improve work efficiency.
3rd, test loop binding post is installed on terminals enclosure it is ensured that operating mode operational excellence, is not exposed to the weather
Impact, metal erosion degree is relatively low, guarantees that test loop contact resistance is little simultaneously, improves measuring stability and accuracy.
4th, this device there is test loop handoff functionality it is achieved that counter loop exist and disconnect under the conditions of difference
, be there is measurement result and counter loop under operating mode and disconnected under operating mode in measurement by enumerator registration, counter loop before test
The comparison of measurement result, can effectively assess enumerator performance, be easy to the enumerator finding in time to change damage, convenient fast
Victory, is easy to operate and be accurately positioned.
5th, this utility model processing technology is simple, workable, with low cost, can repeatedly realize leakage current of an arrester
Measurement, there is use repeatly；Can be effectively ensured and to greatest extent leakage current of an arrester is delivered to tester
Device it is achieved that the switching of test loop, compared by test result it is achieved that spark gap and leakage current table runnability double
Assessment；And installation method is simple, using quick, workable, construction intensity is little it is adaptable to large-scale promotion uses.
Brief description
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, no
It is determinate it is impossible to protection domain of the present utility model is limited with this.
A kind of high-efficiency high-accuracy may compare formula architected spark gap total current measurement termination, as shown in figure 1, including keeping away
Thunder device body 11, relay package box, terminals enclosure, enumerator 1 and insulation column 2, if described lightning arrester body by
A dry full skirt 12 sequentially coaxially concatenates and forms.In the full skirt upper end on top, high-voltage terminal 10 is installed, under the full skirt of end
End is coaxially connected with insulator foot 14 by connecting portion, and this insulator foot is coaxially mounted on framework 16.Logical in the middle part of this framework
Cross the portion of being fixedly connected 15 and be connected to described relay package box and terminals enclosure, described relay package box, counting
Device and terminals enclosure are connected by connection insulated conductor 3, and this connection insulated conductor one end is connected on connecting portion
In spark gap metal fixing end 13, the other end connects continuous earth end 17.
Described relay package box includes relay package box body 4, is arranged on continuing in relay package box body
Electric apparatus coil 7, relay normally-closed contact and relay coil contact, connection passes through described relay package box string with insulated conductor
Join described relay normally-closed contact, be connected with the insulation column being arranged on described enumerator front end, in described relay package box
Interior, it is in parallel with described relay normally-closed contact that connection insulated conductor is passed through in relay coil contact.
Wherein, described relay normally-closed contact includes relay the first normally-closed contact 8 and relay second normally-closed contact
5, described relay coil contact includes relay first coil contact 9 and relay the second coil contact 6, relay first
Normally-closed contact is connected with relay second normally-closed contact, relay first coil contact and relay the second coil contact series,
Described relay coil is connected between described relay first coil contact and relay the second coil contact, described relay
Second normally-closed contact is connected with the insulation column of described enumerator front end by connection insulated conductor.
Described terminals enclosure includes terminals encapsulation box body 23, to be arranged on this terminals enclosure intrinsic
Three described insulation columns, high precision measurement connection terminal 21 and common test connection terminal 19, connect and use insulated conductor one end
The insulation column of linkage counter, the other end passes through described terminals to connect after encapsulating cassette in series the 3rd insulation column 18 and forever connects
Ground terminal.In described terminals enclosure, the first insulation column 22 passes through in connection insulated conductor and relay package box
Relay the second coil contact portion, the second insulated column 20 passes through connection insulated conductor and passes through relay package box and spark gap
Metal fixing end connects.Described high precision measurement connection terminal is connected with the first described insulation column, described common survey
Examination connection terminal is connected with the second described insulation column.
Operation principle of the present utility model：
Relay model section's 5A relay of Thailand (QJT-SS-124LM, 000) of this utility model employing, multiply insulated copper
Wire gauge is 25mm2, encapsulation relay rosette and encapsulation binding post the equal insulation set of rosette.
The relay package box encapsulating relay in this utility model is installed on enumerator and spark gap metal fixing end
Between, insulated copper wire pass through relay, relay normally-closed contact respectively with leakage current table input on counter of lightning arrester
Connect with spark gap metal fixed end part；Relay coil contact respectively with spark gap metal fixed end part and framework bottom
The binding post in binding post enclosure connecting connects.
Concrete test process is as follows：
(1) read leakage current meter reading on counter of lightning arrester first during spark gap test；
(2) test instrunment loop is reliably connected, leakage current input is connected with common test connection terminal, enters
The leakage current of an arrester measurement in row tape counter loop；
(3) test instrunment loop is reliably connected, leakage current input is connected with high precision measurement connection terminal,
Turn off the leakage current of an arrester measurement of counter loop；
(4) above three measurement data is compared, as larger in difference, can be concluded that counter of lightning arrester damages, need
Checked further or changed.
Claims (4)
1. a kind of high-efficiency high-accuracy may compare formula architected spark gap total current measurement termination, including lightning arrester body, meter
Number device and insulation column, described lightning arrester body is sequentially coaxially concatenated by several full skirts and forms, in the full skirt upper end on top
High-voltage terminal is installed, in the full skirt lower end of end, insulator foot is coaxially connected with by connecting portion, this insulator foot is coaxial
Install architecturally it is characterised in that：Also include relay package box and terminals enclosure, this relay package box and wiring
End seal mounted box is connected in the middle part of framework by being fixedly connected part, described relay package box, enumerator and terminals enclosure
Connected with insulated conductor by connection, this connection insulated conductor one end is connected to the spark gap metal fixing end on connecting portion
On, the other end connects continuous earth end.
2. a kind of high-efficiency high-accuracy according to claim 1 may compare formula architected spark gap total current measurement wiring dress
Put it is characterised in that：Described relay package box includes relay package box body, is arranged in relay package box body
Relay coil, relay normally-closed contact and relay coil contact, connection passes through described relay package with insulated conductor
Relay normally-closed contact described in cassette in series, is connected with the insulation column being arranged on described enumerator front end, in described relay envelope
In mounted box, it is in parallel with described relay normally-closed contact that connection insulated conductor is passed through in relay coil contact.
3. a kind of high-efficiency high-accuracy according to claim 2 may compare formula architected spark gap total current measurement wiring dress
Put it is characterised in that：Described relay normally-closed contact includes relay first normally-closed contact and relay second normally-closed contact,
Described relay coil contact includes relay first coil contact and relay the second coil contact, described relay
One normally-closed contact is connected with relay second normally-closed contact, and described relay first coil contact is touched with relay second coil
Point series connection, described relay coil is connected between described relay first coil contact and relay the second coil contact, institute
State relay second normally-closed contact to be connected with the insulation column of described enumerator front end by connection insulated conductor.
4. a kind of high-efficiency high-accuracy according to claim 1 or 3 may compare formula architected spark gap total current measurement wiring
Device it is characterised in that：Described terminals enclosure includes terminals encapsulation box body and is arranged on this terminals enclosure
Intrinsic three described insulation columns, high precision measurement connection terminal and common test connection terminal, connection insulated conductor
The insulation column of one end linkage counter, the other end connects permanent after passing through described terminals encapsulation cassette in series the 3rd insulation column
Earth terminal, in described terminals enclosure, the first insulation column passes through in connection insulated conductor and relay package box
Relay the second coil contact portion, the second insulated column passes through connection insulated conductor and passes through relay package box and spark gap gold
Belong to fixing end to connect, described high precision measurement connection terminal is connected with the first described insulation column, described common test
Connection terminal is connected with the second described insulation column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861451.9U CN205941662U (en) | 2016-08-09 | 2016-08-09 | Full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861451.9U CN205941662U (en) | 2016-08-09 | 2016-08-09 | Full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941662U true CN205941662U (en) | 2017-02-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620861451.9U Active CN205941662U (en) | 2016-08-09 | 2016-08-09 | Full current measurement termination of comparable formula framework type arrester of high -efficient high accuracy |
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| CN (1) | CN205941662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115097168A (en) * | 2022-06-23 | 2022-09-23 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional wiring device for live-line test of lightning arrester |
-
2016
- 2016-08-09 CN CN201620861451.9U patent/CN205941662U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115097168A (en) * | 2022-06-23 | 2022-09-23 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional wiring device for live-line test of lightning arrester |
| CN115097168B (en) * | 2022-06-23 | 2023-10-31 | 国网湖北省电力有限公司宜昌供电公司 | Multifunctional wiring device for live test of lightning arrester |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |