CN204481568U - A kind of power plant is standby throws protective device - Google Patents
A kind of power plant is standby throws protective device Download PDFInfo
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- CN204481568U CN204481568U CN201520242301.5U CN201520242301U CN204481568U CN 204481568 U CN204481568 U CN 204481568U CN 201520242301 U CN201520242301 U CN 201520242301U CN 204481568 U CN204481568 U CN 204481568U
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Abstract
The utility model discloses a kind of power plant standby throwing protective device, comprise work PC A section, public PC A section, work PC B section, public PC B section, security personnel EMCC A section, security personnel EMCC B section, security personnel EMCC C section, diesel engine generator, PLC device, sampling apparatus, first busbar voltage, second busbar voltage, triple bus-bar voltage, diesel engine generator gate out switch, security personnel's section working power feeder switch, security personnel section stand-by power supply public PC section side switch, security personnel's section diesel-generator power sources service entrance switch, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch.The no-load test of the utility model diesel generating set and band carry test and all realize at local operation, and the control strategy that security personnel's section power supply is complete and reliably standby throwing protective device make that emergency power supply point is safe and reliable completes protection function.
Description
Technical field
The utility model relates to a kind of power plant power supply reliability configuration circuit, particularly relates to a kind of power plant standby throwing protective device.
Background technology
For inadequate sturdy power grid, security personnel's section power supply equipment high to power plant's power supply requirement must be had to provide power supply point, for example the equipment such as power plant's ups power, direct current system and emergency lighting requires all suitable height to power supply, and traditional N+1 power supply point equipping rules can not meet the power reguirements of this type load completely.The requirement of emergency power supply point is met by increasing black starting-up diesel engine.
Utility model content
The purpose of this utility model: provide a kind of power plant standby throwing protective device, adopts the standby installation circuits of insuring of PLC device circuit realiration, realizes the function of emergency power supply point.
To achieve these goals, the technical solution of the utility model is:
A kind of power plant is standby throws protective device, comprises work PC A section, public PC A section, work PC B section, public PC B section, security personnel EMCC A section, security personnel EMCC B section, security personnel EMCC C section, diesel engine generator, PLC device, sampling apparatus, the first busbar voltage, the second busbar voltage, triple bus-bar voltage, diesel engine generator gate out switch, security personnel's section working power feeder switch, security personnel section stand-by power supply public PC section side switch, security personnel's section diesel-generator power sources service entrance switch, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch; Described work PC A section is connected with the first described busbar voltage and section working power service entrance switch of ensuring public security respectively by described security personnel's section working power feeder switch, and described public PC A section is connected with the second described busbar voltage and section stand-by power supply service entrance switch of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch; Described triple bus-bar voltage, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch are connected with described security personnel EMCC A section respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch are connected with described security personnel EMCC A section and ensure public security EMCC C section and PLC device respectively; Described work PC B section is connected with the first described busbar voltage and section working power service entrance switch of ensuring public security respectively by described security personnel's section working power feeder switch, and described public PC B section is connected with the second described busbar voltage and section stand-by power supply service entrance switch of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch; Described triple bus-bar voltage, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch are connected with described security personnel EMCC B section respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch are connected with described security personnel EMCC B section and ensure public security EMCC C section and PLC device respectively; Described sampling apparatus is connected with described diesel engine generator, PLC device, diesel engine generator gate out switch, section of ensuring public security working power feeder switch and section stand-by power supply public PC section side switch of ensuring public security respectively.
Above-mentioned power plant is standby throws protective device, and wherein, described diesel engine generator gate out switch is connected to the open position of described diesel engine generator.
Above-mentioned power plant is standby throws protective device, and wherein, described security personnel's section working power feeder switch is connected to the closing position of described work PC A section.
Above-mentioned power plant is standby throws protective device, and wherein, described security personnel's section stand-by power supply public PC section side switch is connected to the closing position of described public PC A section.
Above-mentioned power plant is standby throws protective device, and wherein, described security personnel's section diesel-generator power sources service entrance switch is connected to the open position of the power inleting terminal of described diesel engine generator.
Above-mentioned power plant is standby throws protective device, and wherein, described security personnel's section working power service entrance switch is connected to the closing position of described work PC A section.
Above-mentioned power plant is standby throws protective device, and wherein, described security personnel's section stand-by power supply service entrance switch is connected to the open position of described public PC A section.
The no-load test of the utility model diesel generating set and band carry test and all realize at local operation, and the control strategy that security personnel's section power supply is complete and reliably standby throwing protective device make that emergency power supply point is safe and reliable completes protection function.
Accompanying drawing explanation
Fig. 1 is the standby connection layout throwing protective device of a kind of power plant of the utility model.
Embodiment
Embodiment of the present utility model is further illustrated below in conjunction with accompanying drawing.
Refer to shown in accompanying drawing 1, a kind of power plant is standby throws protective device, comprise work PC A section 1, public PC A section 2, work PC B section 3, public PC B section 4, security personnel EMCC A section 5, security personnel EMCC B section 6, security personnel EMCC C section 7, diesel engine generator 8, PLC device 9, sampling apparatus 10, first busbar voltage 11, second busbar voltage 12, triple bus-bar voltage 13, diesel engine generator gate out switch 14, security personnel's section working power feeder switch 15, security personnel section stand-by power supply public PC section side switch 16, security personnel's section diesel-generator power sources service entrance switch 17, security personnel's section working power service entrance switch 18 and security personnel's section stand-by power supply service entrance switch 19, described work PC A section 1 is connected with the first described busbar voltage 11 and section working power service entrance switch 18 of ensuring public security respectively by described security personnel's section working power feeder switch 15, and described public PC A section 2 is connected with the second described busbar voltage 12 and section stand-by power supply service entrance switch 19 of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch 16, described triple bus-bar voltage 13, security personnel's section working power service entrance switch 18 and security personnel's section stand-by power supply service entrance switch 19 are connected with described security personnel EMCC A section 5 respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch 17 are connected with described security personnel EMCC A section 5 and ensure public security EMCC C section 7 and PLC device 9 respectively, described work PC B section 3 is connected with the first described busbar voltage 11 and section working power service entrance switch 18 of ensuring public security respectively by described security personnel's section working power feeder switch 15, and described public PC B section 4 is connected with the second described busbar voltage 12 and section stand-by power supply service entrance switch 19 of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch 16, described triple bus-bar voltage 13, security personnel's section working power service entrance switch 18 and security personnel's section stand-by power supply service entrance switch 19 are connected with described security personnel EMCC B section 6 respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch 17 are connected with described security personnel EMCC B section 6 and ensure public security EMCC C section 7 and PLC device 9 respectively, described sampling apparatus 10 is connected with described diesel engine generator 8, PLC device 9, diesel engine generator gate out switch 14, section of ensuring public security working power feeder switch 15 and section stand-by power supply public PC section side switch 16 of ensuring public security respectively.
Described diesel engine generator gate out switch 14 is connected to the open position of described diesel engine generator 8.
Described security personnel's section working power feeder switch 15 is connected to the closing position of described work PC A section 1.
Described security personnel's section stand-by power supply public PC section side switch 16 is connected to the closing position of described public PC A section 2.
Described security personnel's section diesel-generator power sources service entrance switch 17 is connected to the open position of the power inleting terminal of described diesel engine generator 8.
Described security personnel's section working power service entrance switch 18 is connected to the closing position of described work PC A section 1.
Described security personnel's section stand-by power supply service entrance switch 19 is connected to the open position of described public PC A section 2.
The utility model arranges two sections of main power house security personnel MCC sections (380V security personnel EMCC A section 5 and 380V security personnel EMCC B section 6), unit protective load average mark receives two sections, every section of security personnel MCC is provided with a working power, a stand-by power supply and an emergency power supply, working power and stand-by power supply are supplied by main power house 380V work PC A section 1, main power house 380V work PC B section 3 and main power house 380V public PC A section 2, main power house 380V public PC B section 4 respectively, and emergency power supply is supplied by diesel engine generator 8.When working power and stand-by power supply all disappear, by diesel-electric set electric supply.The overall process that emergency power supply switches completes by the PLC device 9 of diesel engine generator 8.
The PLC device 9 of diesel engine generator 8 control security personnel's section working power service entrance switch 18 of unit security personnel EMCC A/B section 5,6, security personnel's section stand-by power supply service entrance switch 19, security personnel's section diesel-generator power sources service entrance switch 17 and diesel engine generator gate out switch 14 conjunction, jump operation.
DCS provides security personnel's section working power service entrance switch 18, security personnel's section stand-by power supply service entrance switch 19, the combined floodgate of security personnel's section diesel-generator power sources service entrance switch 17, separating brake order, and interface is positioned at combined floodgate, the trip(ping) circuit of circuit breaker on switch cubicle.Normal operating condition PLC device 9 automated location locking DCS operates, and concrete logic is determined in dcs.When section first time of ensuring public security puts into operation, artificial judgement is closed any road electric power incoming line of security personnel's section and is powered to security personnel's section.
When PLC device 9 judges triple bus-bar voltage 13 decompression (PT breakage lock device), through 3-5 time delay second (avoiding the time that short time voltage fluctuation recovers), send that security personnel's section working power service entrance switch 18 trips, the section of security personnel stand-by power supply service entrance switch 19 switching signal and start diesel engine generator 8 signal simultaneously; When security personnel's section stand-by power supply service entrance switch 19 closes a floodgate successfully, then diesel engine generator 8 is out of service; When security personnel's section stand-by power supply service entrance switch 19 closes a floodgate failure, tripping security personnel section stand-by power supply service entrance switch 19, then send diesel engine generator gate out switch 14 and to close a floodgate order.Diesel generating set should drop into protective load after dropping on request in batches.
After the PLC device 9 of diesel engine generator 8 receives emergency start order, start diesel engine generator 8 immediately, judge that whether the triple bus-bar voltage 13 of 380V security personnel EMCC A section 5 and B section 6 is normal simultaneously, if arbitrary section of voltage is abnormal, then tripping correspondent section is ensured public security after section working power service entrance switch 18 and security personnel's section stand-by power supply service entrance switch 19, closes corresponding diesel engine generator gate out switch 14, security personnel's section diesel-generator power sources service entrance switch 17; If busbar voltage is all normal, time delay stops diesel engine generator 8 and disconnects diesel engine generator gate out switch 14.
Normal service power switches: if security personnel's section is by when normally the section of security personnel working power service entrance switch 18 is powered, PLC device 9 receives DCS and switches to security personnel's section stand-by power supply service entrance switch 19 power on command, then close security personnel's section stand-by power supply service entrance switch 19 after satisfying condition through the relay judgement same period, time delay is tripping security personnel section working power service entrance switch 18 again; If followed the trail of in delay time less than the same period, send out handoff failure signal to DCS, PLC device 9 no longer does any operation.Working power and stand-by power supply can be selected arbitrarily, and diesel engine generator 8 control flow installs selector switch.
When security personnel's section is powered by diesel engine generator 8, simultaneously DCS monitors work or stand-by power supply when recovering normal, on diesel engine generator 8 control flow on the spot, the operation of the work that returns to or stand-by power supply is carried out by operations staff, the PLC device 9 of diesel engine generator 8 is after differentiating the same period, first close work/service entrance switch for subsequent use, after automatic deloading, point diesel engine generator gate out switch 14 after time delay.
In sum, the no-load test of the utility model diesel generating set and band carry test and all realize at local operation, and the control strategy that security personnel's section power supply is complete and reliably standby throwing protective device make that emergency power supply point is safe and reliable completes protection function.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure transformation utilizing the utility model description to do; or directly or indirectly use the technical field being attached to other Related products, be all in like manner included in scope of patent protection of the present utility model.
Claims (7)
1. power plant's standby throwing protective device, it is characterized in that: comprise work PC A section, public PC A section, work PC B section, public PC B section, security personnel EMCC A section, security personnel EMCC B section, security personnel EMCC C section, diesel engine generator, PLC device, sampling apparatus, first busbar voltage, second busbar voltage, triple bus-bar voltage, diesel engine generator gate out switch, security personnel's section working power feeder switch, security personnel section stand-by power supply public PC section side switch, security personnel's section diesel-generator power sources service entrance switch, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch, described work PC A section is connected with the first described busbar voltage and section working power service entrance switch of ensuring public security respectively by described security personnel's section working power feeder switch, and described public PC A section is connected with the second described busbar voltage and section stand-by power supply service entrance switch of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch, described triple bus-bar voltage, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch are connected with described security personnel EMCC A section respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch are connected with described security personnel EMCC A section and ensure public security EMCC C section and PLC device respectively, described work PC B section is connected with the first described busbar voltage and section working power service entrance switch of ensuring public security respectively by described security personnel's section working power feeder switch, and described public PC B section is connected with the second described busbar voltage and section stand-by power supply service entrance switch of ensuring public security respectively by described security personnel's section stand-by power supply public PC section side switch, described triple bus-bar voltage, security personnel's section working power service entrance switch and security personnel's section stand-by power supply service entrance switch are connected with described security personnel EMCC B section respectively, and the two ends of described security personnel's section diesel-generator power sources service entrance switch are connected with described security personnel EMCC B section and ensure public security EMCC C section and PLC device respectively, described sampling apparatus is connected with described diesel engine generator, PLC device, diesel engine generator gate out switch, section of ensuring public security working power feeder switch and section stand-by power supply public PC section side switch of ensuring public security respectively.
2. power plant according to claim 1 is standby throws protective device, it is characterized in that: described diesel engine generator gate out switch is connected to the open position of described diesel engine generator.
3. power plant according to claim 1 is standby throws protective device, it is characterized in that: described security personnel's section working power feeder switch is connected to the closing position of described work PC A section.
4. power plant according to claim 1 is standby throws protective device, it is characterized in that: described security personnel's section stand-by power supply public PC section side switch is connected to the closing position of described public PC A section.
5. power plant according to claim 1 is standby throws protective device, it is characterized in that: described security personnel's section diesel-generator power sources service entrance switch is connected to the open position of the power inleting terminal of described diesel engine generator.
6. power plant according to claim 1 is standby throws protective device, it is characterized in that: described security personnel's section working power service entrance switch is connected to the closing position of described work PC A section.
7. power plant according to claim 1 is standby throws protective device, it is characterized in that: described security personnel's section stand-by power supply service entrance switch is connected to the open position of described public PC A section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242301.5U CN204481568U (en) | 2015-04-20 | 2015-04-20 | A kind of power plant is standby throws protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520242301.5U CN204481568U (en) | 2015-04-20 | 2015-04-20 | A kind of power plant is standby throws protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481568U true CN204481568U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520242301.5U Expired - Fee Related CN204481568U (en) | 2015-04-20 | 2015-04-20 | A kind of power plant is standby throws protective device |
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| CN (1) | CN204481568U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846548A (en) * | 2016-06-16 | 2016-08-10 | 上海科泰电源股份有限公司 | Power plant black start dedicated diesel generating set remote monitoring system |
| CN106684856A (en) * | 2015-11-11 | 2017-05-17 | 上海利策科技股份有限公司 | Low-voltage power system control apparatus |
| CN111404259A (en) * | 2020-04-13 | 2020-07-10 | 西安热工研究院有限公司 | Security section power supply system of generator set and switching method thereof |
| CN109038805B (en) * | 2018-08-07 | 2021-01-05 | 北京德利迅达科技有限公司 | Method for realizing automatic switching between medium-voltage commercial power and diesel generator set |
| CN113783292A (en) * | 2021-09-01 | 2021-12-10 | 泰州锋陵特种电站装备有限公司 | Method for realizing multi-path parallel switching of parallel controller |
-
2015
- 2015-04-20 CN CN201520242301.5U patent/CN204481568U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684856A (en) * | 2015-11-11 | 2017-05-17 | 上海利策科技股份有限公司 | Low-voltage power system control apparatus |
| CN106684856B (en) * | 2015-11-11 | 2023-10-03 | 上海利策科技股份有限公司 | Control device of low-voltage power system |
| CN105846548A (en) * | 2016-06-16 | 2016-08-10 | 上海科泰电源股份有限公司 | Power plant black start dedicated diesel generating set remote monitoring system |
| CN109038805B (en) * | 2018-08-07 | 2021-01-05 | 北京德利迅达科技有限公司 | Method for realizing automatic switching between medium-voltage commercial power and diesel generator set |
| CN111404259A (en) * | 2020-04-13 | 2020-07-10 | 西安热工研究院有限公司 | Security section power supply system of generator set and switching method thereof |
| CN111404259B (en) * | 2020-04-13 | 2021-06-08 | 西安热工研究院有限公司 | Security section power supply system of generator set and switching method thereof |
| CN113783292A (en) * | 2021-09-01 | 2021-12-10 | 泰州锋陵特种电站装备有限公司 | Method for realizing multi-path parallel switching of parallel controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160202 Address after: 200000 Shanghai city Pudong New Area old town Nangang Road No. 1765 room 153 Patentee after: China Sinogy Electric Engineering Co., Ltd. Address before: 200061 Shanghai, Zhongshan North Road, No. E, block, building 4, building 1715 Patentee before: Yu Hanhua |
|
| 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: 20150715 Termination date: 20200420 |