CN106990377A - A kind of 10kV switch cabinet current transformers test fixture - Google Patents
A kind of 10kV switch cabinet current transformers test fixture Download PDFInfo
- Publication number
- CN106990377A CN106990377A CN201710337397.7A CN201710337397A CN106990377A CN 106990377 A CN106990377 A CN 106990377A CN 201710337397 A CN201710337397 A CN 201710337397A CN 106990377 A CN106990377 A CN 106990377A
- Authority
- CN
- China
- Prior art keywords
- switch cabinet
- connecting lever
- wire clamp
- current transformers
- test fixture
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
Abstract
The present invention relates to a kind of 10kV switch cabinet current transformers test fixture, include connecting lever, a double-arm wire clamp is fixed in connecting lever front end, and wire clamp head is provided with contact, and screw handle is installed in contact joint test cable, connecting lever rear end.A kind of 10kV switch cabinet current transformers test fixture of the present invention uses inverted U-shaped structure, and inverted U connecting lever is good and bakelite that be easily worked is integrally formed by insulating properties, both with certain mechanical strength, while having insulation characterisitic.Connecting lever front end is that rotatable double-arm wire clamp can clamp two primary connection ends of current transformer simultaneously, reduces test connection number of times.Wire clamp is copper multiple rows of contact, and one end is fixed on movable axis, and the other end uses spring supporting, both the contact area with current transformer primary connection plate had been increased, has made its contact good, and ensure that high current passes through, the tightness of wire clamp can be increased again, can reliably be fixed, prevent from coming off.
Description
Technical field
The present invention relates to design a kind of 10kV switch cabinet current transformers test fixture.
Background technology
With the extensive use in state's net power system and transformer station of large enterprise of 10kV switch cubicles, 10kV current transformers
Test mission increasingly increases, the problems such as traditional test method has operating difficulties, inefficiency.So how to improve 10kV electricity
Current transformer test efficiency is urgent problem with experiment safety.The step of traditional experiment is：First, testing crew stretches hand
Enter inside cabinet to verify primary side screw position；2nd, wire clamp is put in by cabinet according to the position verified and carries out blind folder；3rd, line is treated
Clamp after pile crown screw, rock fixture and determine whether clamping, if clamp fails, repeatedly aforesaid operations.It is empty inside cabinet
Between it is narrow, arm can only be allowed to stretch into, and screw be in blind area, cause clamp operating difficulties, wire clamp is easy to fall off, there is peace
Full hidden danger.Again because pile crown screw exposes shorter, contact surface connects small, so can be big because of contact resistance when carrying out cranking test,
Up-flow is difficult, causes test failure, and clamp operation need to be repeated, test efficiency is reduced.Thus it is clear that the structure of conventional brace and
It is the low main cause of test efficiency, it is necessary to development of new clamp instead conventional brace that operation is limited, so as to improve experiment effect
Rate.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of 10kV switch cabinet current transformers test fixture, the fixture is adopted
With U-shape structure, belong to Universal clamp, you can for the experiment such as current transformer ratio, polarity, C-V characteristic, it can also be used to
Current transformer rising test.
In order to solve the problem of prior art is present, the technical solution adopted by the present invention is：
A kind of 10kV switch cabinet current transformers test fixture, includes connecting lever, and a double-arm wire clamp is fixed in connecting lever front end,
Wire clamp head is provided with contact, and screw handle is installed in contact joint test cable, connecting lever rear end.
It is bolted between described connecting lever front end and double-arm wire clamp.
Described connecting lever is inverted U.
Described connecting lever is made up of bakelite.
Described double-arm wire clamp is rotatable.
Described contact is multiple rows of contact, and one end is fixed on movable axis, and the other end uses spring supporting.
Described contact is copper.
Described screw rod is additionally arranged at the bottom felt pad.
Advantage for present invention is with effect：
A kind of 10kV switch cabinet current transformers test fixture of the present invention uses inverted U-shaped structure, and inverted U connecting lever is good by insulating properties
And the bakelite being easily worked is integrally formed, both with certain mechanical strength, while having insulation characterisitic.Connecting lever front end is to revolve
The double-arm wire clamp turned can clamp two primary connection ends of current transformer simultaneously, reduce test connection number of times.Wire clamp is
Copper multiple rows of contact, one end is fixed on movable axis, and the other end uses spring supporting, has both been increased and has once been connect with current transformer
The contact area of line plate, makes its contact good, and ensures that high current passes through, and can increase the tightness of wire clamp again, can reliably consolidate
It is fixed, prevent from coming off.Connecting lever rear end installs screw handle additional, is additionally arranged at the bottom felt pad, increasing friction force.The invention belongs to universal folder
Tool, can be not only used for the experiment such as current transformer ratio, polarity, C-V characteristic, it can also be used to current transformer rising test.This folder
What is had is used without inside operating personnel's access switch cabinet, and convenient use can greatly improve current transformer test efficiency,
Test period is saved, testing crew workload is reduced, while ensure that personal safety.There is safety coefficient during clamp
High, working strength is low and the characteristics of operating efficiency is high and reduces labor intensity, and the dismounting of fixture can be made simple and convenient, significantly subtracted
Few fixture disassembly and assembly time, can effectively improve 10kV switch cabinet current transformer test efficiencies, improve the quality of repair and maintenance work,
Power supply reliability is ensured.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of 10kV switch cabinet current transformers test fixture of the invention；
Fig. 2 is partial structurtes enlarged drawing.
Major part in figure：Connecting lever 1, bolt 2, double-arm wire clamp 3, contact 4, cable 5, screw handle 6, felt pad 7 is living
Moving axis 8, spring 9.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of 10kV switch cabinet current transformers test fixture of the invention, includes inverted U connecting lever 1, inverted U is turned
The material of arm 1 selects insulating properties good and bakelite that is being easily worked is integrally formed.Connecting lever front end with bolt 2 fix one it is rotatable
Double-arm wire clamp 3, wire clamp head is multiple copper spring contacts 4.As shown in Fig. 2 described contact is multiple rows of contact, one end is solid
It is scheduled on movable axis 8, the other end is supported using spring 9.Contact can joint test cable 5.Connecting lever rear end installs screw handle 6 additional,
Screw rod is additionally arranged at the bottom felt pad 7.
In the use of the present invention, the copper contact of front end is pressed on the wiring aluminium of current transformer row, rear end is placed in switch cubicle structure
On frame.By the handle on rotary handle, make the line bank of wire clamp reliable contacts current transformer, fixture is arrived by cable connection
Test apparatus, it is convenient and swift.
Claims (8)
1. a kind of 10kV switch cabinet current transformers test fixture, it is characterised in that：Include
A double-arm wire clamp is fixed in connecting lever, connecting lever front end, and wire clamp head is provided with contact, contact joint test cable, connecting lever
Rear end is installed by screw handle.
2. a kind of 10kV switch cabinet current transformers test fixture according to claim 1, it is characterised in that：Described turns
It is bolted between arm front end and double-arm wire clamp.
3. a kind of 10kV switch cabinet current transformers test fixture according to claim 1 or 2, it is characterised in that：It is described
Connecting lever be inverted U.
4. a kind of 10kV switch cabinet current transformers test fixture according to claim 3, it is characterised in that：Described turns
Arm is made up of bakelite.
5. a kind of 10kV switch cabinet current transformers test fixture according to claim 1, it is characterised in that：Described is double
Arm-type wire clamp is rotatable.
6. a kind of 10kV switch cabinet current transformers test fixture according to claim 1, it is characterised in that：Described touches
Head is multiple rows of contact, and one end is fixed on movable axis, and the other end uses spring supporting.
7. a kind of 10kV switch cabinet current transformers test fixture according to claim 1 or 6, it is characterised in that：It is described
Contact to be copper.
8. a kind of 10kV switch cabinet current transformers test fixture according to claim 1, it is characterised in that：Described spiral shell
Bar is additionally arranged at the bottom felt pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337397.7A CN106990377A (en) | 2017-05-15 | 2017-05-15 | A kind of 10kV switch cabinet current transformers test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710337397.7A CN106990377A (en) | 2017-05-15 | 2017-05-15 | A kind of 10kV switch cabinet current transformers test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106990377A true CN106990377A (en) | 2017-07-28 |
Family
ID=59420463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710337397.7A Pending CN106990377A (en) | 2017-05-15 | 2017-05-15 | A kind of 10kV switch cabinet current transformers test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106990377A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594154A (en) * | 2018-04-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of binding clip of verification transformer station direct current system leakage current mutual inductor |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299022A (en) * | 1998-04-14 | 1999-10-29 | Fuji Electric Co Ltd | Tester of current transformer in gas-insulated switchgear |
| CN201548567U (en) * | 2009-10-10 | 2010-08-11 | 安徽省电力公司滁州供电公司 | Field calibration disposable test clamp of current transformer |
| CN202159893U (en) * | 2011-07-19 | 2012-03-07 | 广东电网公司东莞供电局 | Switch cabinet provided with zero sequence current transformer |
| CN202216980U (en) * | 2011-09-07 | 2012-05-09 | 湖北省电力公司十堰供电公司 | TA testing dedicated cable cleat |
| CN203148982U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Test fixture for loop resistance of circuit breaker |
| CN103474797A (en) * | 2013-09-03 | 2013-12-25 | 国家电网公司 | Ground clip in switch cabinet |
| CN104142486A (en) * | 2013-11-29 | 2014-11-12 | 国家电网公司 | Voltage transformer testing tool |
| CN204439671U (en) * | 2015-03-09 | 2015-07-01 | 国家电网公司 | Novel high-pressure switch circuit resistance measured material |
| CN204666659U (en) * | 2015-03-20 | 2015-09-23 | 云南电网有限责任公司西双版纳供电局 | A kind of high-tension switch cabinet equipment test wiring new tool |
| CN204882617U (en) * | 2015-06-30 | 2015-12-16 | 国网山东省电力公司淄博供电公司 | Portable mutual -inductor reference test bar |
| CN205067534U (en) * | 2015-10-27 | 2016-03-02 | 国家电网公司 | High voltage circuit breaker return circuit resistance test anchor clamps |
| CN105425190A (en) * | 2015-12-10 | 2016-03-23 | 国网四川省电力公司电力科学研究院 | Strut-type current transformer field test primary wiring apparatus |
| CN205720326U (en) * | 2016-06-23 | 2016-11-23 | 兴安供电公司 | A kind of electrical equipment rising test auxiliary device |
| CN205787085U (en) * | 2016-06-30 | 2016-12-07 | 温州大学 | The transformer loading fixture of current transformer detection equipment |
| CN206710584U (en) * | 2017-05-15 | 2017-12-05 | 国网辽宁省电力有限公司营口供电公司 | A kind of 10kV switch cabinet current transformers test fixture |
-
2017
- 2017-05-15 CN CN201710337397.7A patent/CN106990377A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299022A (en) * | 1998-04-14 | 1999-10-29 | Fuji Electric Co Ltd | Tester of current transformer in gas-insulated switchgear |
| CN201548567U (en) * | 2009-10-10 | 2010-08-11 | 安徽省电力公司滁州供电公司 | Field calibration disposable test clamp of current transformer |
| CN202159893U (en) * | 2011-07-19 | 2012-03-07 | 广东电网公司东莞供电局 | Switch cabinet provided with zero sequence current transformer |
| CN202216980U (en) * | 2011-09-07 | 2012-05-09 | 湖北省电力公司十堰供电公司 | TA testing dedicated cable cleat |
| CN203148982U (en) * | 2013-04-03 | 2013-08-21 | 国家电网公司 | Test fixture for loop resistance of circuit breaker |
| CN103474797A (en) * | 2013-09-03 | 2013-12-25 | 国家电网公司 | Ground clip in switch cabinet |
| CN104142486A (en) * | 2013-11-29 | 2014-11-12 | 国家电网公司 | Voltage transformer testing tool |
| CN204439671U (en) * | 2015-03-09 | 2015-07-01 | 国家电网公司 | Novel high-pressure switch circuit resistance measured material |
| CN204666659U (en) * | 2015-03-20 | 2015-09-23 | 云南电网有限责任公司西双版纳供电局 | A kind of high-tension switch cabinet equipment test wiring new tool |
| CN204882617U (en) * | 2015-06-30 | 2015-12-16 | 国网山东省电力公司淄博供电公司 | Portable mutual -inductor reference test bar |
| CN205067534U (en) * | 2015-10-27 | 2016-03-02 | 国家电网公司 | High voltage circuit breaker return circuit resistance test anchor clamps |
| CN105425190A (en) * | 2015-12-10 | 2016-03-23 | 国网四川省电力公司电力科学研究院 | Strut-type current transformer field test primary wiring apparatus |
| CN205720326U (en) * | 2016-06-23 | 2016-11-23 | 兴安供电公司 | A kind of electrical equipment rising test auxiliary device |
| CN205787085U (en) * | 2016-06-30 | 2016-12-07 | 温州大学 | The transformer loading fixture of current transformer detection equipment |
| CN206710584U (en) * | 2017-05-15 | 2017-12-05 | 国网辽宁省电力有限公司营口供电公司 | A kind of 10kV switch cabinet current transformers test fixture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594154A (en) * | 2018-04-12 | 2018-09-28 | 广东电网有限责任公司 | A kind of binding clip of verification transformer station direct current system leakage current mutual inductor |
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