CN204068206U - The control device of steam turbine jumped by a kind of generator connection - Google Patents
The control device of steam turbine jumped by a kind of generator connection Download PDFInfo
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- CN204068206U CN204068206U CN201420409392.2U CN201420409392U CN204068206U CN 204068206 U CN204068206 U CN 204068206U CN 201420409392 U CN201420409392 U CN 201420409392U CN 204068206 U CN204068206 U CN 204068206U
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- generator
- steam turbine
- power transfer
- control device
- jumped
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Abstract
The utility model discloses the control device that steam turbine jumped by a kind of generator connection, in generator failure outlet DC circuit, be in series with the generator controlled by generator Integrated Protection System successively combine the coil protecting fault contact and voltage-type power transfer relay; By the contact sets of voltage-type power transfer relay with can control steam turbine and to open or the deh control system that stops is connected.The utility model has the fault-signal that generator Integrated Protection System sends can stablize the advantage passing to deh control system.
Description
Technical field
The utility model relates to the control device that steam turbine jumped by a kind of generator connection.
Background technology
At present; in gas to generate electricity unit; generator connection jumps the structure of steam turbine control device as shown in Figure 1: in generator failure outlet DC circuit, be in series with the generator controlled by generator Integrated Protection System successively combine and protect fault contact 1, the coil of current mode power transfer relay 2, grid-connection cabinet switching winding 3 and grid-connection cabinet auxiliary contacts of circuit breaker 4, the contact sets of current mode power transfer relay 2 with can control steam turbine open or the deh control system 5(that stops namely: steam turbine Integrated Protection System) be connected.In above-mentioned control device, under generator normal operating conditions, the grid-connection cabinet auxiliary contacts of circuit breaker 4 in this control device is in closure state, and generator is combined guarantor's fault contact 1 and is in off-state.When after generator failure, generator Integrated Protection System 6 can send fault-signal makes the comprehensive fault contact 1 of protecting of generator close, generator failure is made to export DC circuit energising, this fault-signal can be passed to deh control system 5 by its contact sets by the coil of current mode power transfer relay 2 in the energized state, and deh control system 5 stops steam turbine operation after receiving this failure pulse signal; But after the closed connection circuit of guarantor's fault contact 1 combined by generator, can disconnect rapidly after being in grid-connection cabinet auxiliary contacts of circuit breaker 4 energising of closure state, and then generator failure is exported DC circuit disconnection power-off; Because generator failure outlet DC circuit is very short for conduction time, the time making current mode power transfer relay 2 send failure pulse signal to deh control system 5 is very short, the failure pulse signal sent in the so short time, deh control system 5 cannot gather reception at all, and then it is out of service that deh control system 5 can not be made to control steam turbine interlocking, there is great device security hidden danger.
Utility model content
The purpose of this utility model is to provide a kind of control device fault-signal that generator Integrated Protection System sends being stablized a kind of generator connection jumping steam turbine passing to deh control system.
For achieving the above object, the utility model have employed following technical scheme: the control device of steam turbine jumped by described a kind of generator connection, is in series with the generator controlled by generator Integrated Protection System successively and combines the coil protecting fault contact and voltage-type power transfer relay in generator failure outlet DC circuit; By the contact sets of voltage-type power transfer relay with can control steam turbine and to open or the deh control system that stops is connected.
Further; the control device of steam turbine jumped by aforesaid a kind of generator connection; wherein: in generator failure outlet DC circuit, be also in series with generator protection pressing plate switch, generator protection pressing plate switch is combined at generator and protected between fault contact and the coil of voltage-type power transfer relay.
By the enforcement of technique scheme, the utility model has the fault-signal that generator Integrated Protection System sends can stablize the advantage passing to deh control system.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the generator connection jumping steam turbine control device described in background technology.
Fig. 2 is the operation principle schematic diagram that the control device of steam turbine jumped by a kind of generator connection described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 2, the control device of steam turbine jumped by described a kind of generator connection, is in series with the generator controlled by generator Integrated Protection System 10 successively and combines the coil protecting fault contact 7 and voltage-type power transfer relay 8 in generator failure outlet DC circuit; By the contact sets of voltage-type power transfer relay 8 with can control steam turbine and to open or the deh control system 9 that stops is connected; In the present embodiment, generator protection pressing plate switch 11 is also in series with in generator failure outlet DC circuit, generator protection pressing plate switch 11 is combined at generator and is protected between fault contact 7 and the coil of voltage-type power transfer relay 8, the effect of generator protection pressing plate switch 11 in this circuit is: when being closure state when generator protection pressing plate switch 11 drops into and connects, as long as there is generator failure just Concatenate shut-down immediately; When generator protection pressing plate switch 11 is off-states, when now generator has fault-signal, generator failure relay also can not obtain electric shutdown; The i.e. fault that has of generator, and do not need to shut down, he can selects whether will shut down by generator protection pressing plate switch 11 manual intervention;
Operation principle of the present utility model is as follows:
When the electrical power generator blocks, generator Integrated Protection System 10 can send fault-signal makes the comprehensive fault contact 7 of protecting of generator close, and could disappear after this fault-signal self-locking has to pass through manual reset simultaneously; Generator is combined to protect after fault contact 7 closes and is made generator failure export the coil electricity of the voltage-type power transfer relay 8 in DC circuit; After the coil electricity of voltage-type power transfer relay 8, by the contact sets of voltage-type power transfer relay 8, this fault-signal can be passed to deh control system 9; Deh control system 9 receives this fault-signal can stop steam turbine operation immediately; The advantage that the utility model has is: at generator Integrated Protection System when not resetting because of generator failure; pass to deh control system to the fault-signal energy all-the-time stable that generator Integrated Protection System sends, considerably increase the safety in operation of equipment.
Claims (2)
1. a control device for steam turbine jumped by generator connection, it is characterized in that: in generator failure outlet DC circuit, be in series with the generator controlled by generator Integrated Protection System successively combine the coil protecting fault contact and voltage-type power transfer relay; By the contact sets of voltage-type power transfer relay with can control steam turbine and to open or the deh control system that stops is connected.
2. the control device of steam turbine jumped by a kind of generator connection according to claim 1; it is characterized in that: in generator failure outlet DC circuit, be also in series with generator protection pressing plate switch, generator protection pressing plate switch is combined at generator and protected between fault contact and the coil of voltage-type power transfer relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409392.2U CN204068206U (en) | 2014-07-24 | 2014-07-24 | The control device of steam turbine jumped by a kind of generator connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409392.2U CN204068206U (en) | 2014-07-24 | 2014-07-24 | The control device of steam turbine jumped by a kind of generator connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204068206U true CN204068206U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409392.2U Active CN204068206U (en) | 2014-07-24 | 2014-07-24 | The control device of steam turbine jumped by a kind of generator connection |
Country Status (1)
| Country | Link |
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| CN (1) | CN204068206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821355A (en) * | 2020-11-25 | 2021-05-18 | 华能海南发电股份有限公司东方电厂 | Generator-transformer unit protection combined-tripping steam turbine loop |
-
2014
- 2014-07-24 CN CN201420409392.2U patent/CN204068206U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112821355A (en) * | 2020-11-25 | 2021-05-18 | 华能海南发电股份有限公司东方电厂 | Generator-transformer unit protection combined-tripping steam turbine loop |
| CN112821355B (en) * | 2020-11-25 | 2023-03-24 | 华能海南发电股份有限公司东方电厂 | Generator-transformer unit protection combined-tripping steam turbine loop |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |