CN107831345A - A kind of transformer voltage ratio test and direct resistance metering mode of connection and terminal box - Google Patents
A kind of transformer voltage ratio test and direct resistance metering mode of connection and terminal box Download PDFInfo
- Publication number
- CN107831345A CN107831345A CN201711426407.0A CN201711426407A CN107831345A CN 107831345 A CN107831345 A CN 107831345A CN 201711426407 A CN201711426407 A CN 201711426407A CN 107831345 A CN107831345 A CN 107831345A
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- China
- Prior art keywords
- binding posts
- voltage ratio
- transformer
- pressure side
- binding
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- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/20—Measuring number of turns; Measuring transformation ratio or coupling factor of windings
Abstract
The present invention relates to a kind of test of transformer voltage ratio and direct resistance metering mode of connection and terminal box, belong to apparatus for testing transformer technical field.Technical scheme is：Direct resistance metering switchs（5）One end and direct resistance metering instrument binding post（2）Interconnect, the other end respectively with low-pressure side rotary switch（6）, high-pressure side rotary switch（7）Interconnect, low-pressure side rotary switch（6）, high-pressure side rotary switch（7）Respectively with Transformer Winding binding post（8）Interconnect, no-load voltage ratio test switch（4）One end and no-load voltage ratio tester binding post（3）Interconnect, the other end and Transformer Winding binding post（8）Interconnect.The beneficial effects of the invention are as follows：Primary connection can complete all test subjects of two experiments of no-load voltage ratio test and direct resistance metering, greatly improve operating efficiency, improve the degree of accuracy of test data.
Description
Technical field
The present invention relates to a kind of test of transformer voltage ratio and direct resistance metering mode of connection and terminal box, belong to transformer test
Equipment technical field.
Background technology
In order to ensure the stable operation of transformer safety, it is necessary to periodically carry out no-load voltage ratio test and direct resistance metering to transformer.
Traditional method of testing needs the different test of above two distinguishing wiring, carries out successively, adds the working time, and use
, it is necessary to repeatedly change the test connection of transformer binding post during the direct resistance metering instrument test transformer alternate winding of difference, not only drop
The low operating efficiency of transformer test, and the accuracy of test data can be reduced.
The content of the invention
It is an object of the present invention to provide a kind of test of transformer voltage ratio and direct resistance metering mode of connection and terminal box, switch is included
With multiple binding posts, when testing transformer, primary connection only need to be carried out, by rotary switch Control experiment circuit, i.e.,
The test data of above two experiment can be obtained, efficiently solves above mentioned problem present in background technology.
The technical scheme is that：A kind of transformer voltage ratio test and direct resistance metering terminal box, include terminal box, straight resistance
Tester binding post, no-load voltage ratio tester binding post, no-load voltage ratio test switch, direct resistance metering switch, low-pressure side rotary switch, high-pressure side
Rotary switch and Transformer Winding binding post, the direct resistance metering instrument binding post, no-load voltage ratio tester binding post, no-load voltage ratio test are opened
Pass, direct resistance metering switch, low-pressure side rotary switch, high-pressure side rotary switch are arranged on the front side of terminal box, direct resistance metering switch
One end and direct resistance metering instrument binding post interconnect, the other end is mutual with low-pressure side rotary switch, high-pressure side rotary switch respectively
It is connected, low-pressure side rotary switch, high-pressure side rotary switch are mutual with the Transformer Winding binding post on rear side of terminal box respectively
It is connected, one end of no-load voltage ratio test switch interconnects with no-load voltage ratio tester binding post, the other end and Transformer Winding binding post
Interconnect.
The direct resistance metering instrument binding post includes M binding posts and N binding posts.
The no-load voltage ratio tester binding post includes A1 binding posts, B1 binding posts, C1 binding posts, a1 binding posts, b1 binding posts
With c1 binding posts.
The Transformer Winding binding post includes A2 binding posts, B2 binding posts, C2 binding posts, a2 binding posts, b2 binding posts
With c2 binding posts, low-pressure side rotary switch interconnects with a2 binding posts, b2 binding posts, c2 binding posts respectively, high-pressure side rotation
Switch interconnects with A2 binding posts, B2 binding posts, C2 binding posts respectively.
A kind of transformer voltage ratio test and direct resistance metering mode of connection, are carried out using above-mentioned terminal box, comprised the following steps：
Before transformer test, the front side of terminal box is enter line side, M binding posts and N binding posts in direct resistance metering instrument binding post,
With binding post corresponding to connection direct-current resistance tester for transformer, A1 binding posts, B1 binding posts in no-load voltage ratio tester binding post,
C1 binding posts, a1 binding posts, b1 binding posts, c1 binding posts, binding post corresponding to matching connection transformer voltage ratio tester；Wiring
The rear side of box is outgoing line side, A2 binding posts, B2 binding posts, C2 binding posts in Transformer Winding binding post, matching connection respectively
A phase windings, B phase windings, the C phase windings of high voltage side of transformer, a2 binding posts, b2 binding posts, c2 binding posts, respectively matching connect
Connect a phase windings, b phase windings, c phase windings of step down side；O binding posts connect the neutral point of transformer；Become to test
Transformer voltage ratio data, closure no-load voltage ratio test switch, no-load voltage ratio tester complete the test to transformer voltage ratio tester；To test
D.C. resistance between high voltage side of transformer A phase windings and B phase windings, closure direct resistance metering switch, and rotated by high-pressure side
A, B shelves are connected in switch selection, are connected respectively with A phase windings and B phase windings, carry out the direct current between A phase windings and B phase windings
Resistance test, the alternate D.C. resistance of other high pressure windings, is measured by the connection gear for changing high-pressure side rotary switch；To test
D.C. resistance between step down side a phase windings and b phase windings, closure direct resistance metering switch, and rotated by low-pressure side
A, b shelves are connected in switch selection, are connected respectively with a phase windings and b phase windings, carry out the direct current between a phase windings and b phase windings
Resistance test, the alternate D.C. resistance of other low pressure windings, is measured by the connection gear for changing low-pressure side rotary switch；To test
D.C. resistance between step down side a phase windings and neutral point, closure direct resistance metering switch, and opened by low-pressure side rotation
Selection o, a shelves are closed, are connected respectively with neutral point o and a phase winding, carry out the D.C. resistance test between a phase windings and neutral point,
D.C. resistance between other low pressure windings and neutral point o, measured by changing low-pressure side rotary switch gear.
The beneficial effects of the invention are as follows：Primary connection can complete whole examinations of two experiments of no-load voltage ratio test and direct resistance metering
Project is tested, the step of repeatedly changing wiring in transformer ABC three-phase difference windings side during testing is avoided, greatly improves work
Make efficiency, improve the degree of accuracy of test data.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the internal structure schematic diagram of the present invention；
In figure：Terminal box 1, direct resistance metering instrument binding post 2, no-load voltage ratio tester binding post 3, no-load voltage ratio test switch 4, direct resistance metering are opened
Close 5, low-pressure side rotary switch 6, high-pressure side rotary switch 7, Transformer Winding binding post 8.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the invention will be further described.
A kind of transformer voltage ratio test and direct resistance metering terminal box, include terminal box 1, direct resistance metering instrument binding post 2, no-load voltage ratio
Tester binding post 3, no-load voltage ratio test switch 4, direct resistance metering switch 5, low-pressure side rotary switch 6, high-pressure side rotary switch 7 and change
Depressor winding connection post 8, the direct resistance metering instrument binding post 2, no-load voltage ratio tester binding post 3, no-load voltage ratio test switch 4, straight resistance are surveyed
The front side that 5, low-pressure side rotary switch 6, high-pressure side rotary switch 7 are arranged on terminal box 1 is closed in runin, and the one of direct resistance metering switch 5
End interconnects with direct resistance metering instrument binding post 2, and the other end is mutual with low-pressure side rotary switch 6, high-pressure side rotary switch 7 respectively
Connection, low-pressure side rotary switch 6, high-pressure side rotary switch 7 respectively with the Transformer Winding binding post 8 positioned at the rear side of terminal box 1
Interconnect, one end of no-load voltage ratio test switch 4 interconnects with no-load voltage ratio tester binding post 3, and the other end connects with Transformer Winding
Terminal 8 interconnects.
The direct resistance metering instrument binding post 2 includes M binding posts and N binding posts.
The no-load voltage ratio tester binding post 3 includes A1 binding posts, B1 binding posts, C1 binding posts, a1 binding posts, b1 binding posts
With c1 binding posts.
The Transformer Winding binding post 8 includes A2 binding posts, B2 binding posts, C2 binding posts, a2 binding posts, b2 binding posts
With c2 binding posts, low-pressure side rotary switch 6 interconnects with a2 binding posts, b2 binding posts, c2 binding posts respectively, high-pressure side rotation
Switch 7 interconnects with A2 binding posts, B2 binding posts, C2 binding posts respectively.
A kind of transformer voltage ratio test and direct resistance metering mode of connection, are carried out using above-mentioned terminal box, comprised the following steps：
Before transformer test, the front side of terminal box 1 is enter line side, M binding posts and N binding posts in direct resistance metering instrument binding post 2,
Match and connect binding post corresponding to direct-current resistance tester for transformer, A1 binding posts, B1 wiring in no-load voltage ratio tester binding post 3
Post, C1 binding posts, a1 binding posts, b1 binding posts, c1 binding posts, binding post corresponding to matching connection transformer voltage ratio tester；
The rear side of terminal box 1 is outgoing line side, A2 binding posts, B2 binding posts, C2 binding posts in Transformer Winding binding post 8, respectively
A phase windings, B phase windings, C phase windings with connection high voltage side of transformer, a2 binding posts, b2 binding posts, c2 binding posts, respectively
A phase windings, b phase windings, the c phase windings of matching connection step down side；O binding posts connect the neutral point of transformer；To
Test transformer no-load voltage ratio data, closure no-load voltage ratio test switch 4, no-load voltage ratio tester completes the test to transformer voltage ratio tester；
To the D.C. resistance between test transformer high-pressure side A phase windings and B phase windings, closure direct resistance metering switch 5, and pass through height
Press side rotary switch 7 selection connect A, B shelves, connect respectively with A phase windings and B phase windings, progress A phase windings and B phase windings it
Between D.C. resistance test, the alternate D.C. resistance of other high pressure windings, surveyed by the connection gear for changing high-pressure side rotary switch 7
；To the D.C. resistance between test transformer low-pressure side a phase windings and b phase windings, closure direct resistance metering switch 5, and lead to
Cross low pressure sidespin turn on pass 6 selection connect a, b shelves, connect respectively with a phase windings and b phase windings, progress a phase windings and b phases around
D.C. resistance test between group, the alternate D.C. resistance of other low pressure windings, is kept off by the connection for changing low-pressure side rotary switch 6
Position measures；To the D.C. resistance between test transformer low-pressure side a phase windings and neutral point, direct resistance metering switch 5 is closed, and
By low-pressure side rotary switch 6 select o, a shelves, connect respectively with neutral point o and a phase winding, progress a phase windings and neutral point it
Between D.C. resistance test, the D.C. resistance between other low pressure windings and neutral point o, by changing low-pressure side rotary switch 6
Gear measures.
Generally to testing high voltage side alternate winding AB, BC, CA, low-pressure side Oa, Ob, Oc straight resistance data and transformer
No-load voltage ratio data, it is necessary to carry out seven wiring.The present invention is using direct resistance metering switch K1, no-load voltage ratio test switch K2, high pressure sidespin
The conducting for closing G1 and low-pressure side rotary switch G2 control measurement circuits and closure are turned on, only needs primary connection, you can tried
Test data.The present invention is applied to 10 kv transformers of △/Y connections.
Claims (5)
1. a kind of transformer voltage ratio test and direct resistance metering terminal box, it is characterised in that：Include terminal box（1）, direct resistance metering instrument
Binding post（2）, no-load voltage ratio tester binding post（3）, no-load voltage ratio test switch（4）, direct resistance metering switch（5）, low-pressure side rotary switch
（6）, high-pressure side rotary switch（7）With Transformer Winding binding post（8）, the direct resistance metering instrument binding post（2）, no-load voltage ratio tester
Binding post（3）, no-load voltage ratio test switch（4）, direct resistance metering switch（5）, low-pressure side rotary switch（6）, high-pressure side rotary switch（7）
It is arranged on terminal box（1）Front side, direct resistance metering switch（5）One end and direct resistance metering instrument binding post（2）Interconnect, it is another
End respectively with low-pressure side rotary switch（6）, high-pressure side rotary switch（7）Interconnect, low-pressure side rotary switch（6）, high-pressure side
Rotary switch（7）Respectively with positioned at terminal box（1）The Transformer Winding binding post of rear side（8）Interconnect, no-load voltage ratio test switch
（4）One end and no-load voltage ratio tester binding post（3）Interconnect, the other end and Transformer Winding binding post（8）Interconnect.
2. a kind of transformer voltage ratio test according to claim 1 and direct resistance metering terminal box, it is characterised in that：It is described straight
Hinder tester binding post（2）Include M binding posts and N binding posts.
3. a kind of transformer voltage ratio test according to claim 1 and direct resistance metering terminal box, it is characterised in that：The change
Than tester binding post（3）Include A1 binding posts, B1 binding posts, C1 binding posts, a1 binding posts, b1 binding posts and c1 binding posts.
4. a kind of transformer voltage ratio test according to claim 1 and direct resistance metering terminal box, it is characterised in that：The change
Depressor winding connection post（8）Comprising A2 binding posts, B2 binding posts, C2 binding posts, a2 binding posts, b2 binding posts and c2 binding posts,
Low-pressure side rotary switch（6）Interconnected respectively with a2 binding posts, b2 binding posts, c2 binding posts, high-pressure side rotary switch（7）Point
Do not interconnected with A2 binding posts, B2 binding posts, C2 binding posts.
5. a kind of transformer voltage ratio test and direct resistance metering mode of connection, it is characterised in that using claim 1-4 any one
Terminal box is carried out, and is comprised the following steps：Before transformer test, the front side of terminal box is enter line side, in direct resistance metering instrument binding post
M binding posts and N binding posts, matching connection direct-current resistance tester for transformer corresponding to binding post, no-load voltage ratio tester binding post
In A1 binding posts, B1 binding posts, C1 binding posts, a1 binding posts, b1 binding posts, c1 binding posts, matching connection transformer voltage ratio
Binding post corresponding to tester；The rear side of terminal box is outgoing line side, A2 binding posts, B2 wiring in Transformer Winding binding post
A phase windings, B phase windings, the C phase windings of post, C2 binding posts, respectively matching connection high voltage side of transformer, a2 binding posts, b2 connect
A phase windings, b phase windings, the c phase windings of terminal, c2 binding posts, respectively matching connection step down side；O binding posts connect
The neutral point of transformer；To test transformer no-load voltage ratio data, closure no-load voltage ratio test switch, no-load voltage ratio tester is completed to transformer
The test of no-load voltage ratio tester closes straight resistance and surveyed to the D.C. resistance between test transformer high-pressure side A phase windings and B phase windings
Runin close, and by high-pressure side rotary switch select connect A, B shelves, connect respectively with A phase windings and B phase windings, progress A phases around
D.C. resistance test between group and B phase windings, the alternate D.C. resistance of other high pressure windings, by changing high-pressure side rotary switch
Connection gear measure；To the D.C. resistance between test transformer low-pressure side a phase windings and b phase windings, close straight resistance and survey
Runin close, and by low-pressure side rotary switch select connect a, b shelves, connect respectively with a phase windings and b phase windings, progress a phases around
D.C. resistance test between group and b phase windings, the alternate D.C. resistance of other low pressure windings, by changing low-pressure side rotary switch
Connection gear measure；To the D.C. resistance between test transformer low-pressure side a phase windings and neutral point, direct resistance metering is closed
Switch, and o, a shelves are selected by low-pressure side rotary switch, connected respectively with neutral point o and a phase winding, carry out a phase windings with
Property point between D.C. resistance test, the D.C. resistance between other low pressure windings and neutral point o, by change low-pressure side rotate
Switch gear measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426407.0A CN107831345A (en) | 2017-12-26 | 2017-12-26 | A kind of transformer voltage ratio test and direct resistance metering mode of connection and terminal box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426407.0A CN107831345A (en) | 2017-12-26 | 2017-12-26 | A kind of transformer voltage ratio test and direct resistance metering mode of connection and terminal box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107831345A true CN107831345A (en) | 2018-03-23 |
Family
ID=61645434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711426407.0A Pending CN107831345A (en) | 2017-12-26 | 2017-12-26 | A kind of transformer voltage ratio test and direct resistance metering mode of connection and terminal box |
Country Status (1)
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|---|---|
| CN (1) | CN107831345A (en) |
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| CN204855564U (en) * | 2015-06-10 | 2015-12-09 | 国家电网公司 | Transformer directly hinders test terminal box |
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2017
- 2017-12-26 CN CN201711426407.0A patent/CN107831345A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2601406Y (en) * | 2003-01-21 | 2004-01-28 | 于冠学 | Computer controllet transformer test bench |
| CN202693702U (en) * | 2012-07-06 | 2013-01-23 | 福建省普华电子科技有限公司 | General-purpose tester of transformer |
| CN102879697A (en) * | 2012-10-30 | 2013-01-16 | 中国二十二冶集团有限公司 | Optimized power transformer testing method |
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