CN201594345U - Transformer substation current testing terminal switching simulation operating panel - Google Patents
Transformer substation current testing terminal switching simulation operating panel Download PDFInfo
- Publication number
- CN201594345U CN201594345U CN2009202548176U CN200920254817U CN201594345U CN 201594345 U CN201594345 U CN 201594345U CN 2009202548176 U CN2009202548176 U CN 2009202548176U CN 200920254817 U CN200920254817 U CN 200920254817U CN 201594345 U CN201594345 U CN 201594345U
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- current
- testing terminal
- terminal
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- brace
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- 238000004088 simulation Methods 0.000 title abstract 5
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 14
- 235000012431 wafers Nutrition 0.000 abstract description 5
- 238000005056 compaction Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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Abstract
The utility model relates to a transformer substation current testing terminal switching simulation operating panel which consists of a bottom plate, CT current terminal binding posts and a current connecting sheet, wherein each CT current terminal binding post is provided with an upper compaction knob and a lower compaction knob as well as corresponding metal fixed wafers thereof. The simulation operating panel has the benefits of leading a person on duty to conduct simulation practice on the simulation operating panel so as to achieve the purpose of being skilled in operation procedures and operation skills, solving the problem of danger occurring as the person on duty conducts less operation on CT current testing terminal switching and is not skilled in operation, and improving the operating efficiency of transfer switching, thus ensuring the safe operation of a power grid.
Description
Technical field
The utility model relates to a kind of transformer station current testing terminal and switches the simulated operation plate, belongs to instruments used for education.
Background technology
CT current testing terminal is to be used for the differential main protection of electric system UHV (ultra-high voltage) 500kV transformer current.The once big electric current of electric system inserts the transformer current differential protection device by CT current testing terminal after being transformed to little electric current by current transformer; by the switching of CT current testing terminal, can under the situation of not cutting off the power supply, carry out the interruption maintenance maintenance by the medium voltage side switch to transformer.
Consider 500kV transformer-supplied reliability requirement height; these characteristics of phenomenon that have a power failure generally can not appear; medium voltage side disposes the master and advances and the bypass interval; that is advance the operation of interval-zone medium voltage side to the power supply of some 220kV transformer station with main under the normal condition; when the master advances to break down at interval the need interruption maintenance; do not lose at the transformer medium voltage side under the condition of power supply the transformer-supplied loop is cut in bypass at interval; its corresponding secondary device current differential protection also will be cut the differential protection loop of transformer; how that cuts the transformer differential loop with the device current differential protection under the prerequisite that does not have a power failure, switch with CT current testing terminal usually.
CT current testing terminal blocked operation has 7 step 72 actions, quite complicated loaded down with trivial details, the careless slightly Current Transformer Secondary that will cause is opened a way, thereby produce very high electromotive force at the secondary pitch of the laps, its peak value can reach several kilovolts, the person and equipment are constituted a threat to, and many persons on duty are not sure to this operation.The training that this operation is carried out at present can only be explained by drawing, does not have material object to drill, to making result of training not obvious.
The utility model content
Technical problem to be solved in the utility model provide a kind of can make the person on duty on top of transformer station's current testing terminal of the operation steps of CT current switching terminal and operation skill switch the simulated operation plate.
The technical scheme that its technical matters that solves the utility model adopts:
The utility model is made up of base plate, CT current terminal binding post and electric current brace; On each CT current terminal binding post, be provided with upper and lower two and compress knob and corresponding metal fixed wafer thereof;
Described CT current terminal binding post is installed on the base plate with the matrix-style of three rows, four row, is used for advancing the first row CT current terminal binding post that the spacing current mutual inductor is connected with 220kV side master and is respectively A1, B1, C1, N1 main transformer current testing terminal from left to right; The second row CT current terminal binding post that is used for being connected with the transformer current differential protection device is respectively A, B, C, N protective device testing terminal from left to right; The 3rd row CT current terminal binding post that is used for being connected with 220kV side bypass spacing current mutual inductor is respectively A2, B2, C2, N2 by-pass current testing terminal from left to right;
When advancing with 220kV side master when powering at interval, the annexation of described electric current brace is as follows:
Described main transformer current testing terminal A1, B1, C1, N1 connect into bilayer with described protective device testing terminal A, B, C, N with the electric current brace respectively and vertically are connected; Connect into double-deck laterally connection with the electric current brace successively between described by-pass current testing terminal A2, B2, C2, the N2;
When powering at interval with the bypass of 220kV side, the annexation of described electric current brace is as follows:
Connect into double-deck laterally connection with the electric current brace successively between described main transformer current testing terminal A1, B1, C1, the N1; Described protective device testing terminal A, B, C, N connect into bilayer with described by-pass current testing terminal A2, B2, C2, N2 with the electric current brace respectively and vertically are connected.
The beneficial effects of the utility model are to make the person on duty by carry out simulated maneuver on the simulated operation plate, reach the purpose of operation steps and operation skill on top of; It is few to CT current testing terminal blocked operation to have solved the operator on duty, grasps unskilled and problem that cause danger improved grid switching operation efficient, thereby the safety of having guaranteed electrical network is carried out.
Description of drawings
Fig. 1 is structural representation of the present utility model (connection diagram of each binding post when adopting 220kV side master to advance to power at interval);
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
The connection diagram of each binding post when Fig. 4 powers at interval for adopting the bypass of 220kV side;
Fig. 5 is for being switched to the switching flow figure of the connection diagram of each binding post shown in Figure 4 by the connection diagram of each binding post shown in Figure 1.
In Fig. 1-4: compress metal fixed wafer on the knob, 5 on 1 base plate (insulcrete), 2CT current terminal binding post, the 3 electric current braces (the short circuit brace that has insulated handle), 4, compress knob for 6 times, 7 times metal fixed wafers; A1, B1, C1, N1 are respectively main transformer current testing terminal, and A, B, C, N are respectively protective device testing terminal, A2, B2, C2, N2 and are respectively the by-pass current testing terminal.
Explanation to Fig. 5: under the normal condition, main transformer current testing terminal vertically inserts protective device, and the laterally short envelope (see figure 1) of by-pass current testing terminal is changed the current testing terminal in order to realize continuous TURP, carry out hierarchical operations, has operated the upper strata and has operated lower floor again.
Bypass is changeed when being with the master to advance switch at interval, need carry out the blocked operation of CT current testing terminal, the CT electric current of bypass interval switch is cut to protective device, and sealed the master and advance the CT current return (see figure 4) of switch at interval, and the concrete operations step is seen Fig. 5.
In Fig. 5, " master advances 211 " is the abbreviation of main transformer current testing terminal, and " protective device " is the abbreviation of protective device testing terminal, and " bypass 205 " is the abbreviation of by-pass current testing terminal.
Embodiment
By Fig. 1-5 illustrated embodiment as can be known, it is made up of base plate 1, CT current terminal binding post 2 and electric current brace 3; On each CT current terminal binding post 2, be provided with upper and lower two and compress knob 4,6 and corresponding metal fixed wafer 5,7 thereof;
Described CT current terminal binding post 2 is installed on the base plate 1 with the matrix-style of three rows, four row, is used for advancing the first row CT current terminal binding post that the spacing current mutual inductor is connected with 220kV side master and is respectively A1, B1, C1, N1 main transformer current testing terminal from left to right; The second row CT current terminal binding post that is used for being connected with the transformer current differential protection device is respectively A, B, C, N protective device testing terminal from left to right; The 3rd row CT current terminal binding post that is used for being connected with 220kV side bypass spacing current mutual inductor is respectively A2, B2, C2, N2 by-pass current testing terminal from left to right;
When advancing with 220kV side master when powering at interval, the annexation of described electric current brace 3 is as follows:
Described main transformer current testing terminal A1, B1, C1, N1 connect into double-deck vertically be connected (seeing Fig. 1,3) with described protective device testing terminal A, B, C, N with electric current brace 3 respectively; Connect into double-deck laterally connect (seeing Fig. 1,2) with electric current brace 3 successively between described by-pass current testing terminal A2, B2, C2, the N2;
When powering at interval with the bypass of 220kV side, the annexation of described electric current brace 3 is as follows:
Connect into the double-deck (see figure 4) that laterally connects with electric current brace 3 successively between described main transformer current testing terminal A1, B1, C1, the N1; Described protective device testing terminal A, B, C, N connect into the double-deck (see figure 4) that vertically is connected with described by-pass current testing terminal A2, B2, C2, N2 with electric current brace 3 respectively.
Claims (1)
1. a transformer station current testing terminal switches the simulated operation plate, it is characterized in that it is made up of base plate (1), CT current terminal binding post (2) and electric current brace (3); On each CT current terminal binding post (2), be provided with upper and lower two and compress knob (4,6) and corresponding metal fixed wafer (5,7) thereof;
Described CT current terminal binding post (2) is installed on the base plate (1) with the matrix-style of three rows, four row, is used for advancing the first row CT current terminal binding post that the spacing current mutual inductor is connected with 220kV side master and is respectively A1, B1, C1, N1 main transformer current testing terminal from left to right; The second row CT current terminal binding post that is used for being connected with the transformer current differential protection device is respectively A, B, C, N protective device testing terminal from left to right; The 3rd row CT current terminal binding post that is used for being connected with 220kV side bypass spacing current mutual inductor is respectively A2, B2, C2, N2 by-pass current testing terminal from left to right;
When advancing with 220kV side master when powering at interval, the annexation of described electric current brace (3) is as follows:
Described main transformer current testing terminal A1, B1, C1, N1 connect into bilayer with described protective device testing terminal A, B, C, N with electric current brace (3) respectively and vertically are connected; Use electric current brace (3) to connect into double-deck laterally connection between described by-pass current testing terminal A2, B2, C2, the N2 successively;
When powering at interval with the bypass of 220kV side, the annexation of described electric current brace (3) is as follows:
Use electric current brace (3) to connect into double-deck laterally connection between described main transformer current testing terminal A1, B1, C1, the N1 successively; Described protective device testing terminal A, B, C, N connect into bilayer with described by-pass current testing terminal A2, B2, C2, N2 with electric current brace (3) respectively and vertically are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202548176U CN201594345U (en) | 2009-12-02 | 2009-12-02 | Transformer substation current testing terminal switching simulation operating panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202548176U CN201594345U (en) | 2009-12-02 | 2009-12-02 | Transformer substation current testing terminal switching simulation operating panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594345U true CN201594345U (en) | 2010-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202548176U Expired - Fee Related CN201594345U (en) | 2009-12-02 | 2009-12-02 | Transformer substation current testing terminal switching simulation operating panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594345U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214519A (en) * | 2011-05-06 | 2011-10-12 | 江苏省电力公司扬州供电公司 | Current three-phase linked switching device |
| CN103839463A (en) * | 2012-11-23 | 2014-06-04 | 宁波电业局 | Simulation transformer lead detection method and system |
| CN105680425A (en) * | 2016-01-19 | 2016-06-15 | 国家电网公司 | Plug-type current switching terminal for relay protection device |
| CN114360310A (en) * | 2021-11-29 | 2022-04-15 | 深圳供电局有限公司 | Main transformer circuit replacing current transformer loop switching training device |
-
2009
- 2009-12-02 CN CN2009202548176U patent/CN201594345U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102214519A (en) * | 2011-05-06 | 2011-10-12 | 江苏省电力公司扬州供电公司 | Current three-phase linked switching device |
| CN102214519B (en) * | 2011-05-06 | 2015-11-25 | 江苏省电力公司扬州供电公司 | A kind of three-phase linkage current switching device |
| CN103839463A (en) * | 2012-11-23 | 2014-06-04 | 宁波电业局 | Simulation transformer lead detection method and system |
| CN105680425A (en) * | 2016-01-19 | 2016-06-15 | 国家电网公司 | Plug-type current switching terminal for relay protection device |
| CN105680425B (en) * | 2016-01-19 | 2018-04-13 | 国网黑龙江省电力有限公司绥化供电公司 | Plug-in type current switching terminal for protective relaying device |
| CN114360310A (en) * | 2021-11-29 | 2022-04-15 | 深圳供电局有限公司 | Main transformer circuit replacing current transformer loop switching training device |
| CN114360310B (en) * | 2021-11-29 | 2024-02-06 | 深圳供电局有限公司 | Main transformer circuit current transformer circuit switching training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: THE MAINTENANCE BRANCH OF HEBEI ELECTRIC POWER COR Effective date: 20121213 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: HEBEI POWER COMPANY ULTRA-HV TRANSMISSION + DISTRIBUTION COMPANY Effective date: 20121213 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 050070 SHIJIAZHUANG, HEBEI PROVINCE TO: 100761 DONGCHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121213 Address after: 100761 West Chang'an Avenue, Beijing, No. 86 Patentee after: State Grid Corporation of China Patentee after: Maintenance Branch, Hebei Electric Power Co.,Ltd. Address before: 050070 Hebei city in Shijiazhuang Province, Xinhua District No. 66 Zhong Sheng Lu Patentee before: Hebei Power Company Ultra-HV Transmission & Distribution Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20171202 |