CN203398544U - Perfect incoming line synchronous grid-connected detection signal device - Google Patents
Perfect incoming line synchronous grid-connected detection signal device Download PDFInfo
- Publication number
- CN203398544U CN203398544U CN201320532522.7U CN201320532522U CN203398544U CN 203398544 U CN203398544 U CN 203398544U CN 201320532522 U CN201320532522 U CN 201320532522U CN 203398544 U CN203398544 U CN 203398544U
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- CN
- China
- Prior art keywords
- isolating switch
- inlet wire
- incoming
- synchronous voltage
- cabinet
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- Expired - Fee Related
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Abstract
The utility model relates to a perfect incoming line synchronous grid-connected detection signal device, which comprises an incoming-line circuit breaker cabinet (9), an isolating switch (4), an incoming-line circuit breaker (5) and an incoming-line high voltage cable (6), and is characterized in that: the detection device is provided with a special incoming-line synchronous voltage transformer cabinet (1), and an incoming-line synchronous voltage transformer (2) and an isolating switch (3) are arranged in the special incoming-line synchronous voltage transformer cabinet (1); and one end of the isolating switch (3) is connected with the incoming-line synchronous voltage transformer (2), and the other end of the isolating switch (3) is connected with a lower port of the isolating switch (4) in the incoming-line circuit breaker cabinet (9). The perfect incoming line synchronous grid-connected detection signal device can switch the incoming-line synchronous voltage transformer conveniently and flexibly, can pull up the isolating switch quickly and replace a fuse safely even if the one-time fuse of the incoming-line synchronous voltage transformer is fused, and cannot cause any impact on production.
Description
Technical field
The utility model relates to the generator synchronous interconnection technology of the power plant for self-supply field that enterprise possesses Isolated Networks function, particularly a kind of perfect inlet wire simultaneous interconnecting detection signal device.
Background technology
Inlet wire simultaneous interconnecting input generally takes the inlet wire PT same period to be placed in High-voltage Incoming Cabinet in industrial power plant, be connected to feed isolating switch end opening suitable for reading to inlet wire primary cut-out between.The shortcoming of this setting is: under normal circumstances, inlet wire synchronous voltage instrument transformer, always in running status, is affected by the many uncertainties of electrical network, and the once insurance of synchronous voltage instrument transformer frequently fuses; When inlet wire primary cut-out trips because of external fault, when isolated network system that generator is with and external system are grid-connected, must change voltage transformer and once insure, now need to apply for that higher level transformer station has a power failure can change.In Renewal process, not only risk is high, and greatly extends system recovery time, causes most probably full factory large area blackout.
Summary of the invention
In order to address the above problem, the utility model provides a kind of perfect inlet wire simultaneous interconnecting detection signal device, can well solve because fuse melting of inlet wire synchronous voltage instrument transformer threatens generator and isolate the generation of net safe operation time.The utility model is by special inlet wire synchronous voltage instrument transformer cabinet is set, inlet wire simultaneous interconnecting input voltage transformer is shifted out in incoming line cabinet, be placed in special-purpose inlet wire synchronous voltage instrument transformer cabinet, and set up isolating switch, then isolating switch is connected to the feed isolating switch end opening of incoming line cabinet by copper bar.Its concrete structure is: this device includes lead-in circuit breaker cabinet, isolating switch, lead-in circuit breaker, inlet wire high-tension cable, it is characterized in that: this checkout gear is provided with special-purpose inlet wire synchronous voltage instrument transformer cabinet, in special-purpose inlet wire synchronous voltage instrument transformer cabinet, be provided with inlet wire synchronous voltage instrument transformer and isolating switch; One end of isolating switch taps into line synchronous voltage instrument transformer, and the other end of isolating switch taps into the end opening of isolating switch in line breaker cabinet.Special-purpose inlet wire synchronous voltage instrument transformer cabinet and line breaker cabinet are arranged side by side, in order to guarantee to change the safety that voltage transformer once insures, between isolating switch and inlet wire synchronous voltage instrument transformer, except outside assurance safe distance, be also provided with the insulation protective board of relevant voltage grade.
The utility model is owing to having set up special-purpose inlet wire synchronous voltage instrument transformer cabinet, inlet wire synchronous voltage instrument transformer is shifted out separately, and having installed isolating switch additional at its front end, the utility model has possessed following advantage: 1. throwing setback line synchronous voltage instrument transformer that can be convenient, flexible.Because the effect of inlet wire synchronous voltage instrument transformer is that, for the generator synchronous grid-connected voltage signal that provides, when generator connecting in parallel with system moves, inlet wire synchronous voltage instrument transformer can exit completely.That is to say, inlet wire synchronous voltage instrument transformer can only drop into when carrying out generator connecting in parallel with system operation, can effectively avoid like this primary voltage instrument transformer once to insure because of overvoltage fusing problem.2. even if fuse melting of the inlet wire PT same period, can pull open rapidly isolating switch, the replacing of safety insurance.Can not have any impact to producing.
Accompanying drawing explanation
Fig. 1 is electric key wiring diagram of the present utility model.
In figure, 1, special-purpose inlet wire synchronous voltage instrument transformer cabinet, 2, inlet wire synchronous voltage instrument transformer, 3, isolating switch, 4, isolating switch, 5, lead-in circuit breaker, 6, inlet wire high-tension cable, 7, high voltage bus, 8, insulation protective board, 9, lead-in circuit breaker cabinet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, but be not limited to this.A kind of perfect inlet wire simultaneous interconnecting signal supervisory instrument, include lead-in circuit breaker cabinet 9, isolating switch 4, lead-in circuit breaker 5, inlet wire high-tension cable 6, it is characterized in that: this checkout gear is provided with special-purpose inlet wire synchronous voltage instrument transformer cabinet 1, in special-purpose inlet wire synchronous voltage instrument transformer cabinet 1, be provided with inlet wire synchronous voltage instrument transformer 2 and isolating switch 3; One end of isolating switch 3 taps into line synchronous voltage instrument transformer 2, and the other end of isolating switch 3 taps into the end opening of isolating switch 4 in line breaker cabinet 9.Special-purpose inlet wire synchronous voltage instrument transformer cabinet 1 is arranged side by side with line breaker cabinet 9, and isolating switch 3 is connected in the inlet wire load side of line breaker cabinet 9, and isolating switch 3 can be controlled easily the throwing of inlet wire synchronous voltage instrument transformer 2 and move back.In order to guarantee to change the safety that voltage transformer 2 once insures, between isolating switch 3 and inlet wire synchronous voltage instrument transformer 2, except outside assurance safe distance, be also provided with the insulation protective board 8 of relevant voltage grade.
Claims (3)
1. a perfect inlet wire simultaneous interconnecting signal supervisory instrument, this device includes lead-in circuit breaker cabinet (9), isolating switch (4), lead-in circuit breaker (5), inlet wire high-tension cable (6), it is characterized in that: this checkout gear is provided with special-purpose inlet wire synchronous voltage instrument transformer cabinet (1), in special-purpose inlet wire synchronous voltage instrument transformer cabinet (1), be provided with inlet wire synchronous voltage instrument transformer (2) and isolating switch (3); One end of isolating switch (3) taps into line synchronous voltage instrument transformer (2), and the other end of isolating switch (3) taps into the end opening of isolating switch (4) in line breaker cabinet (9).
2. according to perfect inlet wire simultaneous interconnecting signal supervisory instrument claimed in claim 1, it is characterized in that: special-purpose inlet wire synchronous voltage instrument transformer cabinet (1) is arranged side by side with line breaker cabinet (9).
3. according to perfect inlet wire simultaneous interconnecting signal supervisory instrument claimed in claim 1, it is characterized in that: between isolating switch (3) and inlet wire synchronous voltage instrument transformer (2), be provided with insulation protective board (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532522.7U CN203398544U (en) | 2013-08-29 | 2013-08-29 | Perfect incoming line synchronous grid-connected detection signal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532522.7U CN203398544U (en) | 2013-08-29 | 2013-08-29 | Perfect incoming line synchronous grid-connected detection signal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203398544U true CN203398544U (en) | 2014-01-15 |
Family
ID=49910044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320532522.7U Expired - Fee Related CN203398544U (en) | 2013-08-29 | 2013-08-29 | Perfect incoming line synchronous grid-connected detection signal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203398544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361955A (en) * | 2021-12-06 | 2022-04-15 | 泰豪科技(深圳)电力技术有限公司 | PT cable connection end mounting structure and PT cable connection cabinet |
-
2013
- 2013-08-29 CN CN201320532522.7U patent/CN203398544U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114361955A (en) * | 2021-12-06 | 2022-04-15 | 泰豪科技(深圳)电力技术有限公司 | PT cable connection end mounting structure and PT cable connection cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20160829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |