CN107643504A - A kind of mutual inductor on site examines wiring and automatic switching method - Google Patents
A kind of mutual inductor on site examines wiring and automatic switching method Download PDFInfo
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- CN107643504A CN107643504A CN201710806649.6A CN201710806649A CN107643504A CN 107643504 A CN107643504 A CN 107643504A CN 201710806649 A CN201710806649 A CN 201710806649A CN 107643504 A CN107643504 A CN 107643504A
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Abstract
The invention discloses a kind of mutual inductor on site to examine wiring and automatic switching method, and it includes connection transformer secondary line；With the signal wire that standard mutual inductor secondary winding connects with mutual inductor on site secondary connection automatic transfer equipment will be examined to be connected, examine secondary connection automatic transfer equipment to be connected with mutual inductor on site current transformer load box；Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site mutual-inductor tester；Input experiment winding, experiment no-load voltage ratio, full load and underloading load on secondary connection automatic transfer equipment screen are examined in mutual inductor on site；Mutual inductor on site examines secondary connection automatic transfer equipment will be automatically according to the secondary connection of the experiment winding of selection, experiment no-load voltage ratio, full load and underloading load completion transducer check.The beneficial effect that the present invention obtains is：Can intelligently, specification, safe and convenient complete mutual inductor on site verification secondary connection, improve voltage transformer verification test efficiency, security and accuracy.
Description
Technical field
The present invention relates to mutual inductor interstar connection technical field, particularly a kind of mutual inductor on site examines wiring and automatic conversion side
Method.
Background technology
There is problems with for test connection in electric current and voltage transformer field inspection process：
1st, wiring is more, error-prone, and distance is remote, and interference is big；
When the 2nd, there is being unable to normal verification situation, investigate that the workload of wiring is larger, and operating efficiency is low；
3rd, when carrying out error checking to same transformer difference winding, it is necessary to repeatedly climb overhead progress secondary line more
Change, operating efficiency is low, certain potential safety hazard be present；
4th, when electric current and voltage transformer error verify, the necessary short circuit of secondary winding, if secondary caused by wiring error open
Road, can cause that Keep Clear-High Voltage, destructive test equipment and tested device, cause personnel to injure when serious.
In view of the above problems, mutual inductor secondary connection is optimized according to transducer check principle and the mode of connection, transported
With modern intelligent control technology, foolproof, procedure mode of connection is controlled using collection, designs a set of intelligence, specification, easily
Mutual inductor on site examines wiring and automatic dress to change method.
The content of the invention
In view of the drawbacks described above of prior art, it is an object of the invention to provide a kind of mutual inductor on site examine wiring and
Automatic switching method, can intelligently, specification, safely and conveniently complete mutual inductor on site verification secondary connection, improve voltage
Test efficiency, security and the accuracy of transducer check.
The purpose of the present invention realized by such technical scheme, and a kind of mutual inductor on site examines wiring and from turn
Method is changed, it includes：Methods described step is as follows：
S1：Connect transformer secondary line；
S2：With the signal wire that standard mutual inductor secondary winding connects and mutual inductor on site secondary connection will be examined automatic
Conversion equipment connects,
S3：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site current transformer load box；
S4：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site mutual-inductor tester；
S5：Examined in mutual inductor on site and experiment winding is inputted on secondary connection automatic transfer equipment screen, test no-load voltage ratio, full
Load with lotus and underloading load；
S6：Mutual inductor on site examines secondary connection automatic transfer equipment to become automatically according to the experiment winding of selection, experiment
Than the secondary connection that, full load and underloading load complete transducer check.
Further, the transformer includes current transformer and voltage transformer.
Further, the secondary wiring of current mutual inductor includes：Standard current transformer and subject current transformer two
The short circuit of secondary winding, the load access of subject current transformer experiment winding, the subject non-test secondary winding of current transformer are short
Connect, and self-test is carried out to test connection.
Further, the secondary wiring of current mutual inductor also includes：Checking subject each secondary winding of current transformer is
It is no disconnection to be present；
Such as there is wiring error, by alarm；
After the completion of all test connections for treating current transformer error verification, start full-load test；
After the completion of full-load test, it is light that current mutual inductor on site examines secondary connection automatic transfer equipment to automatically control incision
Lotus is loaded with, starts light duty test；
After the completion for the treatment of a winding test, next experiment winding can be inputted, continues to test.
Further, secondary winding in current transformer includes：1S1-1Sn、2S1-2Sn、3S1-3Sn；Described in step S1
Connect transformer secondary line and secondary winding in current transformer is examined two according to numbering and current mutual inductor on site with supporting 6 cored wire
Secondary wiring automatic transfer equipment 1S1-1Sn, 2S1-2Sn, 3S1-3Sn connection.
Further, Z, 1A, 5A binding post of current transformer load box and current mutual inductor on site examine secondary connection
Automatic transfer equipment Z, 1A, 5A are sequentially connected.
Further, the current transformer calibrator passes through T0、Tx, K, D binding post and current mutual inductor on site examine two
Secondary wiring automatic transfer equipment T0、Tx, K, D binding post is sequentially connected.
Further, the secondary windings of PT includes：1a-1n、2a-2n、3a-3n；It is electric described in step S1
Press transformer secondary line with supporting 9 cored wire that secondary windings of PT is secondary with voltage transformer field test according to numbering
Wiring automatic transfer equipment 1a ' -1a-1n, 2a ' -2a-2n, 3a ' -3a-3n connections.
Further, the voltage transformer check meter passes through a, x, K, D binding post and voltage transformer field test two
A, x, K, D of secondary wiring automatic transfer equipment binding post are sequentially connected.
By adopting the above-described technical solution, the present invention has the advantage that：
(1) solve have that secondary connection is cumbersome, and operating efficiency is low during current mutual inductor on site error checking；Secondary connection is easy
Error influences error result accuracy, or even entail dangers to testing equipment and personal security；Thread replacing work amount is big, and potential safety hazard is big etc.
Problem；
(2) without connecting manually, the error test of all windings of transformer only needs primary connection, different check method
The mode of connection it is also identical, possess self-test flow, it is therefore prevented that because misoperation causes wiring error, caused by device damage and people
Body injures；
(3) intelligence, specification, the secondary connection for safely and conveniently completing mutual inductor on site verification are realized, improves voltage
Test efficiency, security and the accuracy of transducer check.
Other advantages, target and the feature of the present invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.The target and other advantages of the present invention can be wanted by following specification and right
Book is sought to realize and obtain.
Brief description of the drawings
The brief description of the drawings of the present invention is as follows：
Fig. 1 is the secondary connection block diagram that the transformer error of the present invention is examined.
Fig. 2 is the secondary connection block diagram of the current transformer error verification of the present invention.
Fig. 3 is the current mutual inductor on site error checking schematic diagram of the present invention.
The current mutual inductor on site that Fig. 4 is the present invention examines secondary connection automatic transfer equipment schematic diagram.
Fig. 5 is the secondary connection block diagram of the voltage transformer error verification of the present invention.
The voltage transformer site error that Fig. 6 is the present invention verifies schematic diagram.
Fig. 7 is the voltage transformer field test secondary connection automatic transfer equipment schematic diagram of the present invention.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment：As shown in Figures 1 to 7；A kind of mutual inductor on site examines wiring and automatic switching method, and it includes：
Methods described step is as follows：
S1：Connect transformer secondary line；
S2：With the signal wire that standard mutual inductor secondary winding connects and mutual inductor on site secondary connection will be examined automatic
Conversion equipment connects,
S3：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site current transformer load box；
S4：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site mutual-inductor tester；
S5；Examined in mutual inductor on site and experiment winding is inputted on secondary connection automatic transfer equipment screen, test no-load voltage ratio, full
Load with lotus and underloading load；
S6：Mutual inductor on site examines secondary connection automatic transfer equipment to become automatically according to the experiment winding of selection, experiment
Than the secondary connection that, full load and underloading load complete transducer check.
The transformer includes current transformer and voltage transformer.
The secondary wiring of current mutual inductor includes：Standard current transformer and subject secondary winding in current transformer
Short circuit, the load access of subject current transformer experiment winding, subject non-test secondary winding short circuit of current transformer etc., and it is right
Test connection carries out self-test.
The secondary wiring of current mutual inductor also includes：Check each secondary winding of subject current transformer with the presence or absence of disconnected
Open situation；
Such as there is wiring error, by alarm；
After the completion of all test connections for treating current transformer error verification, start full-load test；
After the completion of full-load test, it is light that current mutual inductor on site examines secondary connection automatic transfer equipment to automatically control incision
Lotus is loaded with, starts light duty test；
After the completion for the treatment of a winding test, next experiment winding can be inputted, continues to test.
Secondary winding in current transformer includes：1S1-1Sn、2S1-2Sn、3S1-3Sn；Mutual inductance is connected described in step S1
Secondary winding in current transformer is examined secondary connection certainly by device secondary line with supporting 6 cored wire according to numbering and current mutual inductor on site
Turn changing device 1S1-1Sn, 2S1-2Sn, 3S1-3Sn are connected.
Z, 1A, 5A binding post and current mutual inductor on site of current transformer load box examine secondary connection automatic conversion
Device Z, 1A, 5A are sequentially connected.
The current transformer calibrator passes through T0、Tx, K, D binding post and current mutual inductor on site examine secondary connection
Automatic transfer equipment T0、Tx, K, D binding post is sequentially connected.
The secondary windings of PT includes：1a-1n、2a-2n、3a-3n；Voltage transformer described in step S1
Secondary line is automatic with voltage transformer field test secondary connection according to numbering by secondary windings of PT with supporting 9 cored wire
Conversion equipment 1a ' -1a-1n, 2a ' -2a-2n, 3a ' -3a-3n connections.
The voltage transformer check meter by a, x, K, D binding post and voltage transformer field test secondary connection from
A, x, K, D of turn changing device binding post are sequentially connected.
Workflow is as follows when current transformer error verifies secondary connection：
It is first powered on, current mutual inductor on site is examined will show current transformer on secondary connection automatic transfer equipment screen
Error checking elementary diagram and wiring flow chart；
Connect transformer secondary line, secondary winding in current transformer typically has 1S1-1Sn, 2S1-2Sn, 3S1-3Sn, with
Cover 6 cored wires and secondary winding in current transformer is examined into secondary connection automatic transfer equipment according to numbering and current mutual inductor on site
1S1-1Sn, 2S1-2Sn, 3S1-3Sn are connected；
Secondary connect will be examined with the signal wire that standard current transformer secondary winding connects and current mutual inductor on site
Line automatic transfer equipment connects, and current transformer load box Z, 1A, 5A binding post and current mutual inductor on site is examined secondary
Wiring automatic transfer equipment Z, 1A, 5A are sequentially connected；
By mutual-inductor tester T0、Tx, K, D and current mutual inductor on site examine secondary connection automatic transfer equipment T0、Tx、
K, D connections；
So far the secondary connection of the required current transformer error verification connected manually has been fully completed.
Again input experiment winding on secondary connection automatic transfer equipment screen, input experiment are examined in current mutual inductor on site
No-load voltage ratio, inputs full load and underloading load, current mutual inductor on site examine secondary connection automatic transfer equipment will automatically according to
Experiment winding, no-load voltage ratio and the load of selection complete the secondary connection of all transformer error verifications.
Including standard current transformer with subject secondary winding in current transformer short circuit, subject current transformer experiment around
The load access of group, non-test secondary winding short circuit of current transformer etc. is tested, and self-test is carried out to test connection,
Including checking that each secondary winding of subject current transformer whether there is disconnection etc., such as there is wiring error, will
Alarm, treat current transformer error verification all test connections after the completion of, you can start to test；
After the completion of full-load test, it is light that current mutual inductor on site examines secondary connection automatic transfer equipment to automatically control incision
Load with lotus, you can start light duty test.
After the completion for the treatment of a winding test, next experiment winding can be inputted, continues to test.
Workflow is as follows when voltage transformer error verifies secondary connection：
It is first powered on, voltage transformer will be shown on voltage transformer field test secondary connection automatic transfer equipment screen
Error checking elementary diagram and wiring flow chart；
Transformer secondary line is connected, secondary windings of PT typically has 1a-1n, 2a-2n, 3a-3n, with supporting 9 core
Line is by secondary windings of PT according to numbering and voltage transformer field test secondary connection automatic transfer equipment 1a ' -1a-
1n, 2a ' -2a-2n, 3a ' -3a-3n connections；
Standard potential transformer secondary winding and voltage transformer field test secondary connection automatic transfer equipment a, x are connected
Connect；By three voltage transformer load boxs successively with voltage transformer field test secondary connection automatic transfer equipment 1a-1n,
2a-2n, 3a-3n are connected in parallel；
By mutual-inductor tester a, x, K, D and voltage transformer field test secondary connection automatic transfer equipment a, x, K, D
Connection；
So far the secondary connection of the required voltage transformer error verification connected manually has been fully completed.
Selection check method (the high-end error of measurement on voltage transformer field test secondary connection automatic transfer equipment screen again
Method, low side error of measurement method), input experiment no-load voltage ratio, input experiment winding, input full load and underloading load；
Mutual inductor on site examine secondary connection automatic transfer equipment by automatically according to the method for calibration of selection, experiment winding and
Load completes the secondary connection of all transformer error verifications, and carries out self-test to test connection, wiring error such as occurs, will report
It is alert to prompt, after the completion of all test connections for treating voltage transformer error verification, you can start to test；
After the completion of full-load test, it is light that voltage transformer field test secondary connection automatic transfer equipment will automatically control incision
Load with lotus, you can start light duty test.
After the completion for the treatment of a winding test, next experiment winding can be inputted, continues to test.
The device have the advantages that：
(1) solve have that secondary connection is cumbersome, and operating efficiency is low during current mutual inductor on site error checking；Secondary connection is easy
Error influences error result accuracy, or even entail dangers to testing equipment and personal security；Thread replacing work amount is big, and potential safety hazard is big etc.
Problem；
(2) without connecting manually, the error test of all windings of transformer only needs primary connection, different check method
The mode of connection it is also identical, possess self-test flow, it is therefore prevented that because misoperation causes wiring error, caused by device damage and people
Body injures；
(3) intelligence, specification, the secondary connection for safely and conveniently completing mutual inductor on site verification are realized, improves voltage
Test efficiency, security and the accuracy of transducer check.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of the technical program, it all should cover in the present invention
Right among.
Claims (9)
1. a kind of mutual inductor on site examines wiring and automatic switching method, it is characterised in that methods described step is as follows：
S1：Connect transformer secondary line；
S2：The signal wire connected with standard mutual inductor secondary winding and mutual inductor on site are examined into secondary connection automatic conversion
Device connects,
S3：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site current transformer load box；
S4：Secondary connection automatic transfer equipment is examined to be connected with mutual inductor on site mutual-inductor tester；
S5：Examined in mutual inductor on site and experiment winding is inputted on secondary connection automatic transfer equipment screen, test no-load voltage ratio, fully loaded negative
Lotus and underloading load；
S6：Mutual inductor on site examines secondary connection automatic transfer equipment by automatically according to the experiment winding of selection, experiment no-load voltage ratio, full
Load with lotus and underloading load completes the secondary connection of transducer check.
2. mutual inductor on site as claimed in claim 1 examines wiring and automatic switching method, it is characterised in that the transformer
Include current transformer and voltage transformer.
3. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that the electric current is mutual
Sensor secondary connection includes：Short circuit, subject Current Mutual Inductance of the standard current transformer with subject secondary winding in current transformer
The load access of device experiment winding, non-test secondary winding short circuit of current transformer etc. is tested, and self-test is carried out to test connection.
4. mutual inductor on site as claimed in claim 3 examines wiring and automatic switching method, it is characterised in that the electric current is mutual
Sensor secondary connection also includes：Check that subject each secondary winding of current transformer whether there is disconnection；
Such as there is wiring error, by alarm；
After the completion of all test connections for treating current transformer error verification, start full-load test；
After the completion of full-load test, current mutual inductor on site is examined secondary connection automatic transfer equipment to automatically control incision underloading and born
Lotus, start light duty test；
After the completion for the treatment of a winding test, next experiment winding can be inputted, continues to test.
5. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that current transformer
Secondary winding includes：1S1-1Sn、2S1-2Sn、3S1-3Sn；Supporting 6 core of transformer secondary line is connected described in step S1
Secondary winding in current transformer is examined secondary connection automatic transfer equipment 1S1- by line according to numbering and current mutual inductor on site
1Sn, 2S1-2Sn, 3S1-3Sn are connected.
6. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that current transformer
Z, 1A, 5A binding post and current mutual inductor on site of load box examine secondary connection automatic transfer equipment Z, 1A, 5A to connect successively
Connect.
7. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that the electric current is mutual
Sensor tester passes through T0、Tx, K, D binding post and current mutual inductor on site examine secondary connection automatic transfer equipment T0、Tx、
K, D binding posts are sequentially connected.
8. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that the voltage is mutual
Sensor secondary winding includes：1a-1n、2a-2n、3a-3n；Supporting 9 cored wire of voltage transformer secondary line described in step S1
By secondary windings of PT according to numbering and voltage transformer field test secondary connection automatic transfer equipment 1a ' -1a-
1n, 2a ' -2a-2n, 3a ' -3a-3n connections.
9. mutual inductor on site as claimed in claim 2 examines wiring and automatic switching method, it is characterised in that the voltage is mutual
Sensor check meter by a, x of a, x, K, D binding post and voltage transformer field test secondary connection automatic transfer equipment, K,
D binding post is sequentially connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806649.6A CN107643504A (en) | 2017-09-08 | 2017-09-08 | A kind of mutual inductor on site examines wiring and automatic switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710806649.6A CN107643504A (en) | 2017-09-08 | 2017-09-08 | A kind of mutual inductor on site examines wiring and automatic switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107643504A true CN107643504A (en) | 2018-01-30 |
Family
ID=61111031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710806649.6A Pending CN107643504A (en) | 2017-09-08 | 2017-09-08 | A kind of mutual inductor on site examines wiring and automatic switching method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208641A (en) * | 2019-07-01 | 2019-09-06 | 云南电力技术有限责任公司 | Power distribution network ring network cabinet route installs auxiliary system and method |
| CN113625199A (en) * | 2021-09-08 | 2021-11-09 | 中车长春轨道客车股份有限公司 | Automatic testing system and method for deformation of vehicle-mounted transformer winding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353921A (en) * | 2011-07-14 | 2012-02-15 | 浙江省电力公司 | Automated calibrating device for mutual inductors |
| CN105929354A (en) * | 2016-06-29 | 2016-09-07 | 国家电网公司 | Automatic calibrating device and method for large current transformer |
| CN206096423U (en) * | 2016-10-09 | 2017-04-12 | 云南电网有限责任公司曲靖供电局 | Mutual -inductor automatic connection module |
-
2017
- 2017-09-08 CN CN201710806649.6A patent/CN107643504A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353921A (en) * | 2011-07-14 | 2012-02-15 | 浙江省电力公司 | Automated calibrating device for mutual inductors |
| CN105929354A (en) * | 2016-06-29 | 2016-09-07 | 国家电网公司 | Automatic calibrating device and method for large current transformer |
| CN206096423U (en) * | 2016-10-09 | 2017-04-12 | 云南电网有限责任公司曲靖供电局 | Mutual -inductor automatic connection module |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208641A (en) * | 2019-07-01 | 2019-09-06 | 云南电力技术有限责任公司 | Power distribution network ring network cabinet route installs auxiliary system and method |
| CN113625199A (en) * | 2021-09-08 | 2021-11-09 | 中车长春轨道客车股份有限公司 | Automatic testing system and method for deformation of vehicle-mounted transformer winding |
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