CN202196323U - Main transformer cooling intelligent control system of hydroelectric station - Google Patents

Main transformer cooling intelligent control system of hydroelectric station Download PDF

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Publication number
CN202196323U
CN202196323U CN2011203189835U CN201120318983U CN202196323U CN 202196323 U CN202196323 U CN 202196323U CN 2011203189835 U CN2011203189835 U CN 2011203189835U CN 201120318983 U CN201120318983 U CN 201120318983U CN 202196323 U CN202196323 U CN 202196323U
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CN
China
Prior art keywords
oil pump
main transformer
electrical machinery
oil
transformer cooling
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Expired - Fee Related
Application number
CN2011203189835U
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Chinese (zh)
Inventor
叶小锋
何黎
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CHENGDU RUIDA AUTOMATIC CONTROL Co Ltd
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CHENGDU RUIDA AUTOMATIC CONTROL Co Ltd
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Priority to CN2011203189835U priority Critical patent/CN202196323U/en
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Publication of CN202196323U publication Critical patent/CN202196323U/en
Expired - Fee Related legal-status Critical Current
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

The utility model discloses a main transformer cooling intelligent control system of a hydroelectric station, including a main transformer cooling intelligent control device, an oil pump motor set, an oil inlet electrical ball valve set, a flow signal meter, a voltage transmitter, a current transmitter, an oil temperature transmitter and an oil inlet side pressure transducer. The flow signal meter, the voltage transmitter, the current transmitter, the oil temperature transmitter and the oil inlet side pressure transducer are connected with the signal input terminal of the main transformer cooling intelligent control device; the oil pump motor set and the oil inlet electrical ball valve set are connected with the signal output terminal of the main transformer cooling intelligent control device; the main transformer cooling intelligent control device is provided with an oil pump motor set main circuit, an oil inlet electrical ball valve set main circuit, a control power supply circuit, a PLC analog input circuit module, a PLC switch amount input circuit module, a PLC switch amount output circuit module. In the utility model, the system possesses more stable work performance, real-time supervision and control are realized, accident generation is minimized, and normal operation of the hydroelectric station is guaranteed.

Description

A kind of power station main transformer cooling intelligence control system
Technical field
The utility model belongs to public auxiliary transformer equipment control technology field, power station, is specifically related to a kind of power station main transformer cooling intelligence control system.
Background technology
Power station main transformer cooling intelligence control system is the important component part of the public utility appliance in power station; Purpose is for the cold oil of hydroelectric station operation equipment is provided, and its normal operation is to guarantee that power station oil cooling system operation and even generator normally move the precondition of generating.At present; The technology of the miniature PLC that handles based on traditional conventional relay control, element electric machines control technology (isolating switch, contactor, electrothermal relay) or unity logic is complex structure not only; And easy break-down, easy care not; Do not satisfy the needs of current power station " few people on duty, unmanned " development yet, can not realize that Large Volume Data exchange, man-machine conversation are single with full factory supervisory system simultaneously, operation conditions and query history service data that can not real-time display system.
The utility model content
The purpose of the utility model is to provide a kind of power station main transformer cooling intelligence control system, not only simplifies the structure, and has improved the performance of control system, has reduced the generation of fault, and has realized real time monitoring and control.
For achieving the above object; The technical scheme that the utility model is taked is: main transformer cooling intelligence control system in a kind of power station is provided, it is characterized in that comprising main transformer cooling intelligence controlling device, Oil pump electrical machinery group, oil-feed electrical ball valve group, show stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, oil-feed side pressure sensor; Said stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, the oil-feed side pressure sensor shown is connected with the signal input part of main transformer cooling intelligence controlling device; Said Oil pump electrical machinery group, oil-feed electrical ball valve group are connected with the signal output part of main transformer cooling intelligence controlling device; Said main transformer cooling intelligence controlling device is provided with on Oil pump electrical machinery group major loop, oil-feed electrical ball valve group major loop, control power circuit, PLC simulated measurement input circuit module, PLC switching value input circuit module, PLC switching value output circuit module, display circuit module, the hard contact switch amount and send circuit; Said main transformer cooling intelligence controlling device is connected with factory's supervisory system entirely through sending circuit and display circuit module on the hard contact switch amount.
Said Oil pump electrical machinery group comprises five Oil pump electrical machineries; Said oil-feed electrical ball valve group comprises five oil-feed electrical ball valves.
Said Oil pump electrical machinery group major loop comprises an Oil pump electrical machinery branch road, No. two Oil pump electrical machinery branch roads, No. three Oil pump electrical machinery branch roads, No. four Oil pump electrical machinery branch roads, No. five Oil pump electrical machinery branch roads; Said five Oil pump electrical machinery branch roads are provided with a table oil pump motor, air-break, soft initiator, a table oil pump pilot relay, an Oil pump electrical machinery switch.
Said control power circuit comprises a control power branch and No. two control power branch; A said control power branch is provided with a control power monitoring relay and No. two control power monitoring relays; Said No. two control power branch are provided with No. three control power monitoring relays and No. four control power monitoring relays; A said control power branch and No. two control power branch are provided with automatic control loop.
A said Oil pump electrical machinery branch road is connected with a control power branch with No. two Oil pump electrical machinery branch roads; Said No. three Oil pump electrical machinery branch roads are connected with No. two control power branch with No. four Oil pump electrical machinery branch roads; Said No. five Oil pump electrical machinery branch roads are emergency bearing oil pump motor branch road, and No. five Oil pump electrical machinery branch roads not only had been connected with control power branch but with control power branch No. two and be connected.
Said PLC simulated measurement input circuit module comprises current transducer contact, voltage transmitter contact, oily temperature transmitter contact, oil-feed side pressure sensor contact at least.
Said PLC switching value input circuit module comprise at least five Oil pump electrical machinery make and break contacts, five oil-feed electrical ball valve make and break contacts, five soft initiator contacts, five air-break contacts, four control power monitoring relay tips, one show stream signal meter contact.
Said PLC switching value output circuit module comprises five oil pump pilot relay contacts, five oil-feed electrical ball valve pilot relay contacts, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip at least.
Send circuit and display circuit module to comprise five Oil pump electrical machinery make and break contacts, five soft initiator contacts, four control power monitoring relay tips, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip, two full factory supervisory system contacts, a local HMI touch-screen contact at least on the said hard contact.
Said main transformer cooling intelligence controlling device also is provided with temperature and humidity controller, and temperature and humidity controller is connected with the power end of fan and well heater.
Owing to adopt high performance PLC control, this power station main transformer cooling intelligence control system has more stable serviceability, and has realized real time monitoring and control, has reduced the generation of accident, for the normal operation in power station provides assurance.
Description of drawings
Fig. 1 moves towards sketch for the signal of power station main transformer cooling intelligence control system.
PLC control principle figure when Fig. 2 connects for a control of power station main transformer cooling intelligence control system power branch.
PLC control principle figure when Fig. 3 connects for No. two control of power station main transformer cooling intelligence control system power branch.
Fig. 4 moves towards sketch for the signal between power station main transformer cooling intelligence control system and the full factory supervisory system.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to be described in detail.
As shown in Figure 1, this power station main transformer cooling intelligence control system comprises main transformer cooling intelligence controlling device, Oil pump electrical machinery group, oil-feed electrical ball valve group, shows stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, oil-feed side pressure sensor; Show that stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, oil-feed side pressure sensor are connected with the signal input part of main transformer cooling intelligence controlling device; Oil pump electrical machinery group, oil-feed electrical ball valve group are connected with the signal output part of main transformer cooling intelligence controlling device; Main transformer cooling intelligence controlling device is provided with on Oil pump electrical machinery group major loop, oil-feed electrical ball valve group major loop, control power circuit, PLC simulated measurement input circuit module, PLC switching value input circuit module, PLC switching value output circuit module, display circuit module, the hard contact switch amount and send circuit; Main transformer cooling intelligence controlling device also is provided with temperature and humidity controller, and temperature and humidity controller is connected with the power end of fan and well heater; Main transformer cooling intelligence controlling device is connected with factory's supervisory system entirely through sending circuit and display circuit module on the hard contact switch amount.
The Oil pump electrical machinery group comprises five Oil pump electrical machineries; Oil-feed electrical ball valve group comprises five oil-feed electrical ball valves.Oil pump electrical machinery group major loop comprises an Oil pump electrical machinery branch road, No. two Oil pump electrical machinery branch roads, No. three Oil pump electrical machinery branch roads, No. four Oil pump electrical machinery branch roads, No. five Oil pump electrical machinery branch roads; Five Oil pump electrical machinery branch roads are provided with a table oil pump motor, air-break, soft initiator, a table oil pump pilot relay, an Oil pump electrical machinery switch.
The control power circuit comprises a control power branch and No. two control power branch; No. one the control power branch is provided with a control power monitoring relay and No. two control power monitoring relays; No. two the control power branch is provided with No. three control power monitoring relays and No. four control power monitoring relays; A control power branch and No. two control power branch are provided with automatic control loop.No. one the Oil pump electrical machinery branch road is connected with a control power branch with No. two Oil pump electrical machinery branch roads; No. three the Oil pump electrical machinery branch road is connected with No. two control power branch with No. four Oil pump electrical machinery branch roads; No. five Oil pump electrical machinery branch roads are emergency bearing oil pump motor branch road, and No. five Oil pump electrical machinery branch roads not only had been connected with control power branch but with control power branch No. two and be connected.
Like Fig. 2 and shown in Figure 3, programmable logic controller (PLC) PLC is provided with PLC simulated measurement input circuit module, PLC switching value input circuit module, PLC switching value output circuit module and display circuit module.
PLC simulated measurement input circuit module comprises current transducer contact, voltage transmitter contact, oily temperature transmitter contact, oil-feed side pressure sensor contact at least.
PLC switching value input circuit module comprise at least five Oil pump electrical machinery make and break contacts, five oil-feed electrical ball valve make and break contacts, five soft initiator contacts, five air-break contacts, four control power monitoring relay tips, one show stream signal meter contact.
PLC switching value output circuit module comprises five oil pump pilot relay contacts, five oil-feed electrical ball valve pilot relay contacts, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip at least.
Display circuit module comprises local HMI touch-screen contact and full factory supervisory system contact at least.
As shown in Figure 4, send circuit to comprise five Oil pump electrical machinery make and break contacts, five soft initiator contacts, four control power monitoring relay tips, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip, a full factory supervisory system contact at least on the hard contact.
The principle of work of this power station main transformer cooling intelligence control system is: prescribe a time limit when oily temperature is higher than on the working oil temperature, PLC switching value output circuit module is connected, and judges whether a control power supply is normal; If No. one the control power supply is normal, connect the control power branch No. one, judge whether an Oil pump electrical machinery is normal; If an Oil pump electrical machinery is normal, start signal starts an Oil pump electrical machinery, an Oil pump electrical machinery job through an oil pump pilot relay; Carry back transformer again after deep fat detached by force and be delivered to heating radiator and cool off; Prescribe a time limit when oily temperature drops under the working oil temperature, PLC sends the termination of pumping instruction, and No. one Oil pump electrical machinery quits work; If an Oil pump electrical machinery breaks down; Start signal starts No. two Oil pump electrical machineries through No. two oil pump pilot relays; No. two Oil pump electrical machinery work is carried back transformer after deep fat detached by force and be delivered to heating radiator and cool off again, when oily temperature drops under the working oil temperature in limited time; PLC sends the termination of pumping instruction, and No. two Oil pump electrical machinery quits work; No. five the Oil pump electrical machinery branch road is connected with temperature control loop, if the oil temperature is too high, when generally being higher than 55 °; No. five the Oil pump electrical machinery branch road is connected automatically; Start signal starts No. five Oil pump electrical machineries through No. five oil pump pilot relays, and No. five Oil pump electrical machinery work is when oily temperature drops to 50 °; The automatic cutout of No. five Oil pump electrical machinery branch roads, No. five Oil pump electrical machinery quits work.
If No. one the control power supply breaks down, connect the control power branch No. two, judge whether No. three Oil pump electrical machineries are normal; If No. three Oil pump electrical machineries are normal, start signal starts No. three Oil pump electrical machineries, No. three Oil pump electrical machinery work through No. three oil pump pilot relays; Carry back transformer again after deep fat detached by force and be delivered to heating radiator and cool off; Prescribe a time limit when oily temperature drops under the working oil temperature, PLC sends the termination of pumping instruction, and No. three Oil pump electrical machinery quits work; If No. three Oil pump electrical machineries break down; Start signal starts No. four Oil pump electrical machineries through No. four oil pump pilot relays; No. four Oil pump electrical machinery work is carried back transformer after deep fat detached by force and be delivered to heating radiator and cool off again, when oily temperature drops under the working oil temperature in limited time; PLC sends the termination of pumping instruction, and No. four Oil pump electrical machinery quits work; If the oil temperature is too high, when generally being higher than 55 °, No. five the Oil pump electrical machinery branch road is connected automatically; Start signal starts No. five Oil pump electrical machineries through No. five oil pump pilot relays, and No. five Oil pump electrical machinery work is when oily temperature drops to 50 °; The automatic cutout of No. five Oil pump electrical machinery branch roads, No. five Oil pump electrical machinery quits work.
No. five Oil pump electrical machinery also can be connected with current control loop or voltage control loop, controls the start and stop of No. five Oil pump electrical machineries according to the variation of electric current or voltage.
When control power supply and No. two control power supplys when all breaking down, oil pump full cut-off relay starts and also sends alerting signal, and the emergency stop valve trip relay starts simultaneously, and power station relevant device startup trip protection program has been safeguarded the safety of power station relevant device.
It is to be noted that the above only is the preferred implementation of the utility model; For those skilled in the art; On the basis that does not break away from principle; Be easy to the utility model is carried out some improvement and modification, these improvement and modification also fall in the protection domain of the utility model claim.

Claims (10)

1. a power station main transformer cooling intelligence control system is characterized in that comprising main transformer cooling intelligence controlling device, Oil pump electrical machinery group, oil-feed electrical ball valve group, shows stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, oil-feed side pressure sensor; Said stream signal meter, voltage transmitter, current transducer, oily temperature transmitter, the oil-feed side pressure sensor shown is connected with the signal input part of main transformer cooling intelligence controlling device; Said Oil pump electrical machinery group, oil-feed electrical ball valve group are connected with the signal output part of main transformer cooling intelligence controlling device; Said main transformer cooling intelligence controlling device is provided with on Oil pump electrical machinery group major loop, oil-feed electrical ball valve group major loop, control power circuit, PLC simulated measurement input circuit module, PLC switching value input circuit module, PLC switching value output circuit module, display circuit module, the hard contact switch amount and send circuit; Said main transformer cooling intelligence controlling device is connected with factory's supervisory system entirely through sending circuit and display circuit module on the hard contact switch amount.
2. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said Oil pump electrical machinery group comprises five Oil pump electrical machineries; Said oil-feed electrical ball valve group comprises five oil-feed electrical ball valves.
3. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said Oil pump electrical machinery group major loop comprises an Oil pump electrical machinery branch road, No. two Oil pump electrical machinery branch roads, No. three Oil pump electrical machinery branch roads, No. four Oil pump electrical machinery branch roads, No. five Oil pump electrical machinery branch roads; Said five Oil pump electrical machinery branch roads are provided with a table oil pump motor, air-break, soft initiator, a table oil pump pilot relay, an Oil pump electrical machinery switch.
4. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said control power circuit comprises a control power branch and No. two control power branch; A said control power branch is provided with a control power monitoring relay and No. two control power monitoring relays; Said No. two control power branch are provided with No. three control power monitoring relays and No. four control power monitoring relays; A said control power branch and No. two control power branch are provided with automatic control loop.
5. according to claim 1,3 or 4 described power station main transformer cooling intelligence control systems, it is characterized in that: a said Oil pump electrical machinery branch road is connected with a control power branch with No. two Oil pump electrical machinery branch roads; Said No. three Oil pump electrical machinery branch roads are connected with No. two control power branch with No. four Oil pump electrical machinery branch roads; Said No. five Oil pump electrical machinery branch roads are emergency bearing oil pump motor branch road, and No. five Oil pump electrical machinery branch roads not only had been connected with control power branch but with control power branch No. two and be connected.
6. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said PLC simulated measurement input circuit module comprises current transducer contact, voltage transmitter contact, oily temperature transmitter contact, oil-feed side pressure sensor contact at least.
7. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said PLC switching value input circuit module comprise at least five Oil pump electrical machinery make and break contacts, five oil-feed electrical ball valve make and break contacts, five soft initiator contacts, five air-break contacts, four control power monitoring relay tips, one show stream signal meter contact.
8. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said PLC switching value output circuit module comprises five oil pump pilot relay contacts, five oil-feed electrical ball valve pilot relay contacts, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip at least.
9. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: send circuit and display circuit module to comprise five Oil pump electrical machinery make and break contacts, five soft initiator contacts, four control power monitoring relay tips, a resultant fault relay tip, a PLC power transfer relay contact, a cooling accident relay tip, an oil pump full cut-off relay tip, an emergency stop valve trip relay tip, two full factory supervisory system contacts, a local HMI touch-screen contact at least on the said hard contact.
10. according to the described power station of claim 1 main transformer cooling intelligence control system, it is characterized in that: said main transformer cooling intelligence controlling device also is provided with temperature and humidity controller, and temperature and humidity controller is connected with the power end of fan and well heater.
CN2011203189835U 2011-08-30 2011-08-30 Main transformer cooling intelligent control system of hydroelectric station Expired - Fee Related CN202196323U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203189835U CN202196323U (en) 2011-08-30 2011-08-30 Main transformer cooling intelligent control system of hydroelectric station

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Application Number Priority Date Filing Date Title
CN2011203189835U CN202196323U (en) 2011-08-30 2011-08-30 Main transformer cooling intelligent control system of hydroelectric station

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426483A (en) * 2012-05-24 2013-12-04 中国核动力研究设计院 Main pump trip-out logic control method aiming at two loops
CN105204486A (en) * 2014-06-06 2015-12-30 南京南瑞继保电气有限公司 Control method for main circulating pump of water-cooling system
CN106200545A (en) * 2016-08-31 2016-12-07 中国长江电力股份有限公司 Large-scale main transformer forced oil circulation water cooler water-flow signal, the processing method of oil stream signal
CN106710807A (en) * 2016-11-30 2017-05-24 国网山东省电力公司青州市供电公司 Intelligent transformer air cooling system and control method thereof
CN109283412A (en) * 2018-11-05 2019-01-29 长沙源婕科技有限公司 A kind of transformer cooler water inlet motor-driven valve fault recognition method

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103426483A (en) * 2012-05-24 2013-12-04 中国核动力研究设计院 Main pump trip-out logic control method aiming at two loops
CN103426483B (en) * 2012-05-24 2016-01-27 中国核动力研究设计院 A kind of main pump trip-out logic control method for two loops
CN105204486A (en) * 2014-06-06 2015-12-30 南京南瑞继保电气有限公司 Control method for main circulating pump of water-cooling system
CN105204486B (en) * 2014-06-06 2017-11-24 南京南瑞继保电气有限公司 A kind of control method of water cooling system main circulation pump
CN106200545A (en) * 2016-08-31 2016-12-07 中国长江电力股份有限公司 Large-scale main transformer forced oil circulation water cooler water-flow signal, the processing method of oil stream signal
CN106200545B (en) * 2016-08-31 2019-02-22 中国长江电力股份有限公司 The processing method of large-scale main transformer forced oil circulation water cooler water-flow signal, oil stream signal
CN106710807A (en) * 2016-11-30 2017-05-24 国网山东省电力公司青州市供电公司 Intelligent transformer air cooling system and control method thereof
CN109283412A (en) * 2018-11-05 2019-01-29 长沙源婕科技有限公司 A kind of transformer cooler water inlet motor-driven valve fault recognition method

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EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120418

Termination date: 20150830