CN2787865Y - Automatic shut off device for small-sized water turbine generator after tripping - Google Patents
Automatic shut off device for small-sized water turbine generator after tripping Download PDFInfo
- Publication number
- CN2787865Y CN2787865Y CNU2004200721721U CN200420072172U CN2787865Y CN 2787865 Y CN2787865 Y CN 2787865Y CN U2004200721721 U CNU2004200721721 U CN U2004200721721U CN 200420072172 U CN200420072172 U CN 200420072172U CN 2787865 Y CN2787865 Y CN 2787865Y
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- China
- Prior art keywords
- switch
- power supply
- time relay
- storage battery
- auxiliary
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses an automatic shutting off device for a small sized water turbine generator after tripping. The utility model is characterized in that the device is composed of a direct-current motor D, a storage battery, a main switch K, a travel switch JK, a time relay SJ, and an auxiliary relay ZC, wherein the main switch K is a switch for controlling a power supply. The power supply of the storage battery is controlled to be outputted to control circuits. The travel switch JK and a guide vane are interlocked to control. When the guide vane is below a zero load position, the travel switch JK lies in an open position, otherwise, the travel switch JK is switched on. The travel switch JK, a contact switch SJK of the time relay SJ, an auxiliary normally-closed contact CK1 of a circuit breaker of a main power circuit of a water turbine generator, and a coil of the auxiliary relay are connected in series between the control circuits. A normally-closed contact ZC of the auxiliary relay ZC and the motor D are connected in series among the control circuits. An auxiliary normally-open contact CK2 of the circuit breaker of the main power circuit of the water turbine generator and a coil of the time relay SJ are connected in series to both ends of an output alternate-current power supply of the main power supply. The utility model has the advantage of low cost, reduces operating cost and improves protection performance.
Description
Technical field
The utility model relates to a kind of small hydro turbine tripping operation back shutdown unit automatically, belongs to the water power field.
Background technique
Present existing small hydro turbine circuit control device should not controlled function; handle for the emergent shutdown after the tripping operation of dealing with unit, need add the hand of sending someone supervision on duty, increased operation cost; because the factor untimely, poor reliability of moving appears protecting in artificial factor.
Summary of the invention
The purpose of this utility model designs at the problem of above-mentioned existence, and it is low to cut operating costs, and has avoided improving protective value because of removal of load suddenly causes runaway accident.
The purpose of this utility model is achieved in that a kind of small hydro turbine tripping operation back shutdown unit automatically, and it is characterized in that: this device is made up of direct current generator D, storage battery, main switch K, position limit switch JK, time relay sj, auxiliary reclay ZC; Storage battery is the DC control supply of this device, main switch K is the control power switch of this device, and the power supply of control storage battery outputs to control circuit, the chain control of position limit switch JK and stator, position limit switch JK is in off position when stator is following in the idle position, otherwise connects; The coil of the auxiliary normally-closed contact CK1 of the contact switch SJK of position limit switch JK, time relay sj, the circuit breaker of hydraulic turbine generator main power circuit, auxiliary reclay be connected in series in control circuit 2 and 3 between, the normally-closed contact ZC of auxiliary reclay ZC and motor D be connected on control circuit 2 and 3 between, the auxiliary normally opened contact CK2 of the circuit breaker of hydraulic turbine generator main power circuit is connected on the alternating-current power supply two ends that primary power supply is exported with the time relay sj coil.
Above-mentioned small hydro turbine tripping operation back is shutdown unit automatically, it is characterized in that: time relay sj is the time relay that energising is connected, the outage time-delay disconnects.
Above-mentioned small hydro turbine tripping operation back is shutdown unit automatically, and it is characterized in that: storage battery 1 is direct current 24V power supply.
Above-mentioned small hydro turbine tripping operation back is shutdown unit automatically, and it is characterized in that: main switch K can be single-pole switch or bipolar switch.
Above-mentioned small hydro turbine tripping operation back is shutdown unit automatically, and it is characterized in that: the alternating-current power supply 4 of time relay sj coil series connection can be 220V or 380V.
The utlity model has following advantage: cut operating costs, improve protective value, the Costco Wholesale of this device is low, aspect the Plant reconstruction plant modernization of small hydropower station market prospects is being arranged.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model small hydro turbine tripping operation back circuit theory diagrams of shutdown unit automatically.
Embodiment
As shown in Figure 1, a kind of small hydro turbine tripping operation back is shutdown unit automatically, and it is characterized in that: this device is made up of direct current generator D, storage battery 1, main switch K, position limit switch JK, time relay sj, auxiliary reclay ZC; Storage battery 1 is the DC control supply of this device, main switch K is the control power switch of this device, control storage battery 1 power supply output to control circuit 2 and 3 between, the chain control of position limit switch JK and stator, position limit switch JK is in off position when stator is following in the idle position, otherwise connects; The coil of the auxiliary normally-closed contact CK1 of the contact switch SJK of position limit switch JK, time relay sj, the circuit breaker of hydraulic turbine generator main power circuit, auxiliary reclay be connected in series in control circuit 2 and 3 between, the normally-closed contact ZC of auxiliary reclay ZC and direct current generator D be connected on control circuit 2 and 3 between, the auxiliary normally opened contact CK2 of the circuit breaker of hydraulic turbine generator main power circuit is connected on alternating-current power supply 4 two ends that primary power supply is exported with the time relay sj coil; Time relay sj is the time relay that energising is connected, the outage time-delay disconnects, and storage battery is a direct current 24V power supply, and main switch K can be single-pole switch or bipolar switch, and the alternating-current power supply of time relay sj coil series connection can be 220V or 380V.The function of this model utility is such, and throw-in equipment behind the set grid-connection is closed guide vane automatically to the idle position after the tripping operation, and automatic disconnection was withdrawed from when stator closed to zero load with upper/lower positions, disconnects control loop in 8～10 seconds by the outage action delay.This device is applicable to the automatic protection of 200kW and following small hydro turbine group.Concrete working procedure is as follows: before the start, throw-in equipment main switch K, this moment, position limit switch JK was in off position below the stator idle position, and also off position is not charged to be disconnected power-off delay relay SJ coil because of auxiliary contact (the often opening) CK2 of generator air-break switch CK is in.Another group normally-closed contact CK1 is in the close position.Behind set grid-connection, position limit switch JK is in unloaded above position contacting, CK2 closure after air-break switch CK closes a floodgate, and the CK1 normally-closed contact disconnects, and at this moment, protective gear is ready.When unit causes air-break switch CK tripping operation because of line fault after, the CK1 closure, control loop starts D.C. contactor ZC, and guide vane is closed in direct current motor D action, and CK2 disconnects simultaneously, SJ outage time-delay beginning.When stator during to the idle position position limit switch JK disconnect, thereby disconnect control loop, disconnect when SJ delays time to setting time (setting time is set in stator after the shut-in time), device recovers state before the parallel operation comprehensively.
Claims (5)
1, the automatic shutdown unit in a kind of small hydro turbine tripping operation back, it is characterized in that: this device is made up of direct current generator D, storage battery (1), main switch K, position limit switch JK, time relay sj, auxiliary reclay ZC; Storage battery (1) is the DC control supply of this device, main switch K is the control power switch of this device, the power supply of control storage battery (1) outputs between (2) and (3) of control circuit, the chain control of position limit switch JK and stator, position limit switch JK is in off position when stator is following in the idle position, otherwise connects; The coil of the contact switch SJK of position limit switch JK, time relay sj, the auxiliary normally-closed contact CK1 of the circuit breaker of hydraulic turbine generator main power circuit, auxiliary reclay is connected in series between (2) and (3) of control circuit, the normally-closed contact ZC of auxiliary reclay ZC and direct current generator D are connected between (2) and (3) of control circuit, and auxiliary normally opened contact CK2 of the circuit breaker of hydraulic turbine generator main power circuit and time relay sj coil are connected on alternating-current power supply (4) two ends of primary power supply output.
2, the automatic shutdown unit in small hydro turbine tripping operation back according to claim 1 is characterized in that: time relay sj is that energising is connected, the time relay of outage time-delay disconnection.
3, the automatic shutdown unit in small hydro turbine tripping operation back according to claim 1, it is characterized in that: storage battery (1) is a direct current 24V power supply.
4, the automatic shutdown unit in small hydro turbine tripping operation back according to claim 1, it is characterized in that: main switch K can be single-pole switch or bipolar switch.
5, the automatic shutdown unit in small hydro turbine tripping operation back according to claim 1, it is characterized in that: the alternating-current power supply (4) of time relay sj coil series connection can be 220V or 380V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200721721U CN2787865Y (en) | 2004-08-02 | 2004-08-02 | Automatic shut off device for small-sized water turbine generator after tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200721721U CN2787865Y (en) | 2004-08-02 | 2004-08-02 | Automatic shut off device for small-sized water turbine generator after tripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787865Y true CN2787865Y (en) | 2006-06-14 |
Family
ID=36786160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200721721U Expired - Fee Related CN2787865Y (en) | 2004-08-02 | 2004-08-02 | Automatic shut off device for small-sized water turbine generator after tripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787865Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929919A (en) * | 2010-08-05 | 2010-12-29 | 山东中实易通集团有限公司 | Method and system for low oil pressure guide vane closing experiment in hydroelectric generating set accident |
| CN102709102A (en) * | 2012-05-16 | 2012-10-03 | 平高集团有限公司 | Locking control circuit used between motor power supply and control power supply of disconnecting link mechanism |
| CN104763576A (en) * | 2015-04-08 | 2015-07-08 | 广东蓄能发电有限公司 | Distinguishing and correcting method for auxiliary signal anomaly for pumped storage group protection |
-
2004
- 2004-08-02 CN CNU2004200721721U patent/CN2787865Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929919A (en) * | 2010-08-05 | 2010-12-29 | 山东中实易通集团有限公司 | Method and system for low oil pressure guide vane closing experiment in hydroelectric generating set accident |
| CN101929919B (en) * | 2010-08-05 | 2011-08-10 | 山东中实易通集团有限公司 | Method and system for low oil pressure guide vane closing experiment in hydroelectric generating set accident |
| CN102709102A (en) * | 2012-05-16 | 2012-10-03 | 平高集团有限公司 | Locking control circuit used between motor power supply and control power supply of disconnecting link mechanism |
| CN104763576A (en) * | 2015-04-08 | 2015-07-08 | 广东蓄能发电有限公司 | Distinguishing and correcting method for auxiliary signal anomaly for pumped storage group protection |
| CN104763576B (en) * | 2015-04-08 | 2017-03-08 | 广东蓄能发电有限公司 | A kind of pump-storage generator protection auxiliary signal anomalous discrimination and modification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060614 Termination date: 20090802 |