CN102393760A - Drainage control system for substation cable layer - Google Patents
Drainage control system for substation cable layer Download PDFInfo
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- CN102393760A CN102393760A CN2011103090580A CN201110309058A CN102393760A CN 102393760 A CN102393760 A CN 102393760A CN 2011103090580 A CN2011103090580 A CN 2011103090580A CN 201110309058 A CN201110309058 A CN 201110309058A CN 102393760 A CN102393760 A CN 102393760A
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Abstract
The invention provides a drainage control system for a substation cable layer. The drainage control system mainly consists of a water level sensor, a control box and a drainage water pump, wherein the water level sensor is placed in the substation cable layer, can convert a water level signal into an electric signal and can be accessed to an MCU (microprogrammed control unit) processor in the control box through an AD (analog-to-digital) sampling circuit; the control box mainly consists of the MCU processor, a man-machine interface and a water pump control relay which composed of a relay contact point and an AC (alternating current) contactor; the MCU processor is connected with a man-machine interface which can set water level alarm and action fixed values, and is connected with the control relay which is connected with an automatic monitoring system and is mainly used for realizing the automatic water level alarm and control on the turn-on of the drainage water pump; and the drainage water pump is connected with the AC contactor of the control relay in series and can be used for connecting the water pump power supply and starting the water pump drainage when the control box determines the water level exceeding a drainage set value. The drainage control system provided by the invention has the characteristics of clever design, reasonable structure, convenience and reliability in use, interface and modular design, capability of greatly promoting the electric power safety production and the like.
Description
Technical field
What the present invention relates to is a kind of transformer station cable floor well, comprise the intelligent drainage system of cable floor and cable duct; Be mainly used in transformer station's cable floor and cable duct etc. and be provided with gully; The place that needs anti-water logging; With the automatic warning that realizes water level, start draining and alarming short message function such as transmissions automatically automatically, to satisfy the safe operation of power automation development need, promotion cable, power plant.
Background technology
The cable floor inner cable of transformer station is crisscross, and the secondary cable of bearing a high voltage power transmission cable, transmission control and the signal of the task of power supply all concentrates on this in a large number.On the one hand cable waterproof and dampproof grade is required high, moist or cable by water logging etc. will cause cable go mouldy, aging, have a strong impact on cable insulation, terrible consequences such as guiding discharge, short circuit; But on the other hand, cable floor generally is positioned at the bottom of transformer station, and ponding appears in the influence that is subject to sleet etc.Therefore, the waterproof of cable floor, draining are very important.In summary, background is following:
1. in the power system transformer substation, cable floor, cable duct generally all are lower than the ground level in the station, although general cable floor all is provided with well, also occur ponding most probably in the rainy day, snow sky etc.
2. south is with heavy rainfall, spring and summer plum rain season particularly, and the time in rainy season is long, amount of rainfall is big, and cable floor, cable duct are as easy as rolling off a log, and waterlogging has caused serious damage; And the snow melt in spring in the north also can produce a large amount of melt waters and make cable floor ponding.
In inner cable layer, the cable duct if produce more ponding, with cable insulation, the serious threat cable security, and influence system communication, once, secondary circuit etc., the safe operation of direct threats system.
4. incompatible with the automation of transformation substations technology of present fast development.Automation of transformation substations level development at present is very high, and fence, fire alarm, even enclosure wall vibration signal etc. all inserted automatic system for monitoring still, but are in the blind area of supervision for a long time for the ponding of cable floor, cable duct and flood thereof etc.
5. present, for ponding in cable floor, the cable duct, have only through security personnel or operations staff in standing and make an inspection tour and could find, even the long-time ponding situation that but Nobody Knows occurs.The draining lags in response, grave danger cable, stand interior and security of system.
It is thus clear that, the ponding in transformer station's cable floor, even flood is in the blind area of monitoring at present, the safety in production of serious threat electric system seriously lags behind growing automation of transformation substations technology.
Summary of the invention
The objective of the invention is to overcome the deficiency that prior art exists; And a kind of employing modular design is provided; Can realize the automatic warning of water level, start functions such as draining automatically; Can keep watch on transformer station cable floor well water level, the intelligent drainage system of the transformer station's cable floor that adapts with automation of transformation substations development.
The objective of the invention is to accomplish through following technical scheme; Described system is mainly by level sensor; Control box and draining water pump are formed, and described level sensor is positioned in transformer station's cable floor well and can water level signal is converted to electric signal and be connected to the MCU processor in the control box through the AD sample circuit;
Described control box is mainly by the MCU processor, man-machine interface and form by leaving the water pump pilot relay that relay tip, A.C. contactor constitute; Said MCU processor is connected to the man-machine interface that water-level alarm and action definite value can be set, and realizes that water level automatic alarm links to each other with the pilot relay of controlling the connection of draining water pump with being mainly used in to link to each other with automatic system for monitoring;
The A.C. contactor of said draining water pump serial connection pilot relay is also connected pump power, the draining of startup water pump when control box takes water level information to surpass the draining setting value.
Described system also includes the SMS module that can water level alarm or emergency signal be sent to automatically the related personnel that links to each other with control box.
Also include earth leakage protective device and the thermal protector of being responsible for circuit safety in the described control box, and be responsible for that indication is normal, the pilot lamp of warning and operating state, directly it is connected wherein said pilot lamp with the MCU processing of said control box.
The present invention is a kind of innovation to prior art; It can react the ponding situation in the cable floor well rapidly and accurately; Automatically realize reporting to the police and starting the water pump draining according to the water level situation, and, satisfy the automation of transformation substations and insert requirement; Adopt modular design, can select short message mode that water-level alarm or action message are sent to the related personnel.
The invention solves present transformer station inner cable layer well water level and be in the blind area of monitoring for a long time, problem such as draining lags in response behind the ponding has realized the automatic drain function of automatic monitoring, warning and the serious water level of water level having promoted electric power safety production; It is ingenious, rational in infrastructure, easy to use, reliable that it has design, and interfaceization, modular design have promoted characteristics such as electric power safety production greatly.
Description of drawings
Fig. 1 is a structural principle synoptic diagram of the present invention.
Fig. 2 is liquid level sensor and an AD sampling design drawing in the design example of the present invention.
Fig. 3 is a control box principle schematic of the present invention.
Fig. 4 is control box panel figure of the present invention.
Fig. 5 is the SMS module design drawing of design example of the present invention.
Fig. 6 is the PC Interface design figure of design example of the present invention.
Embodiment
To combine accompanying drawing that the present invention is done detailed introduction below: shown in Figure 1, the present invention mainly comprises: liquid level sensor 1, SMS module 2, control box 3, robotization secondary circuit 4, water pump 5.Also have contact output 6, control output 7, contactor 8, pilot lamp 9, debugging configuration interface 10, data processing 11 and AD sampling 12 among the figure.
Shown in Figure 2, described liquid level sensor 1 is positioned in transformer station's cable floor well and can water level signal is converted to electric signal and be connected to the MCU processor in the control box 3 through the AD sample circuit; Said level sensor adopts sensor water level signal to be converted into the electric current output of 4-20mA; 100 ohm precision resistance R3; Current signal is converted into the voltage signal of 0.4-2V, samples through getting into AD sampling A AD7705 behind the chopper amplifier ICL7650 voltage follow again.
Shown in Figure 3, described control box 3 is mainly by the MCU processor, man-machine interface and form by leaving the water pump pilot relay that relay tip, A.C. contactor constitute; Said MCU processor is connected to the man-machine interface that water-level alarm and action definite value can be set, and realizes that water level automatic alarm links to each other with the pilot relay of controlling the connection of draining water pump with being mainly used in to link to each other with automatic system for monitoring.
The A.C. contactor of said draining water pump serial connection pilot relay is also connected pump power, the draining of startup water pump when control box takes water level information to surpass the draining setting value.
Fig. 5, shown in 6, described system also includes the SMS module that can water level alarm or emergency signal be sent to automatically the related personnel that links to each other with control box.Described SMS module adopts the GTM900-C of Huawei Company, and it combines GTM900-C and adaptive power supply, becomes the module that an outside can be joined, and can send note with the microcontroller serial port transmitting-receiving.
Also include earth leakage protective device and the thermal protector of being responsible for circuit safety in the described control box, and be responsible for that indication is normal, the pilot lamp of warning and operating state, directly it is connected wherein said pilot lamp with the MCU processing of said control box.
MCU is the control center of whole drainage system; MCU adopts 8 single chip computer AT mega128L of atmel corp; It measures water level in the cable floor well through AD sampling (AD7705); And judge whether the water level of surveying reaches setting value, the automatic warning of realization water level, start water pump automatically and note is sent automatically.Simultaneously,, water-level alarm and action definite value can be set, note be set send the object number, and satisfy 6 sets of numbers at least through man-machine interface (MAX232AESE).
Described control box panel such as Fig. 4, it comprises manual change-over switch, when drain system fault need overhaul and other when needing manually control, switch to manually, alternate manner switch down with automatically; Comprise the water position status pilot lamp, indicated water level is normal, warning or urgent; Comprise the water pump state, indication starting mode of pump or stop.Pilot lamp power adopts 12V, satisfies brightness requirement.
The described relay tip of leaving is an idle contact, controlled by MCU, and being mainly used in links to each other with automatic system for monitoring realizes that water level automatic alarm and control water pump connect.Leave in the signal that relay tip can be serially connected with automatic system for monitoring, when water level rises when reaching the alert settings value, MCU control makes its closure, thereby makes the signal circuit conducting that is connected in series mutually with contact, realizes the water level automatic alarm of comprehensive automation; When reaching the draining setting value when water level continuation rising; MCU control associated contacts is closed; Wherein certain (a bit) contact starts water pump through high-power contactor conducting, and the automatic warning of the signal circuit realization water pump action message of monitoring automation is then connected in another (a bit) contact simultaneously.
Described earth leakage protective device and thermal protector play conventional earth leakage protection and device heat protective effect.
Described pilot lamp is used to indicate ordinary water level, alarm water level and water pump action water level.
Intelligent substation unwatering system of the present invention has been realized the automatic warning of cable floor well water level, has been started automatically function such as transmission of draining and alarming short message automatically; Concrete effect is following:
1) state-detection of water level, warning automatically
When the well water level just often, control box pilot lamp indication is normal, simultaneously, automatic system for monitoring does not have any warning message, system works is normal.When being made the well water level by water logging, cable floor rises; During various when surpassing (warning, draining, urgent) setting value; Associated contacts is closed; Realize the sound and light alarm, simultaneously on the control box, closing contact makes the automated system alerting signal conducting of be correlated with, and the realization warning message is uploaded to automated system automatically.
2) draining automatically
When reaching the draining setting value, start unwatering pump automatically and realize automatic draining when water level continuation rising.
3) operation, maintenance are conveniently
System is provided with manual change-over switch,, can switch to manually easy access and manually start draining when associated loop maintenance or when unusual automatically.
The present invention has following several function:
1, the ponding situation of reaction cable floor well designs alarm, action or urgent respectively according to water level.Alarm, action, emergence message insert measure and control device with the idle contact input mode;
Remarks: also can multiple alarm and actuating signal can be set insert public observing and controlling according to the distribution of cable floor/ditch;
2, water level surpasses warning value, then sends alarm signal, and the idle contact input mode inserts measure and control device.
3, if water level continues to rise, surpass working value, then start to do signal, insert measure and control device, send sound and light alarm, and water pump starts the beginning draining automatically with the idle contact mode.
4, if water level continues to rise, surpass urgent value, the anxious signal of then feeling nervous inserts measure and control device with the idle contact mode.
5, configurable automatic short message transmitting system send note respectively automatically to related personnel's (being no less than 8 people) when water level Threshold Crossing Alert, action or when urgent, and number is configurable.
6, the automatic short message system interface is convenient, can require to select to insert or do not insert according to reality.
Claims (3)
1. transformer station's cable floor drainage control system; It is characterized in that described system is mainly by level sensor; Control box and draining water pump are formed, and described level sensor is positioned in transformer station's cable floor well and can water level signal is converted to electric signal and be connected to the MCU processor in the control box through the AD sample circuit;
Described control box is mainly by the MCU processor, man-machine interface and form by leaving the water pump pilot relay that relay tip, A.C. contactor constitute; Said MCU processor is connected to the man-machine interface that water-level alarm and action definite value can be set, and realizes that water level automatic alarm links to each other with the pilot relay of controlling the connection of draining water pump with being mainly used in to link to each other with automatic system for monitoring;
The A.C. contactor of said draining water pump serial connection pilot relay is also connected pump power, the draining of startup water pump when control box takes water level information to surpass the draining setting value.
2. transformer station according to claim 1 cable floor drainage control system is characterized in that described system also includes the SMS module that can water level alarm or emergency signal be sent to automatically the related personnel that links to each other with control box.
3. transformer station according to claim 1 and 2 cable floor drainage control system; It is characterized in that also including in the described control box earth leakage protective device and the thermal protector of being responsible for circuit safety; And be responsible for that indication is normal, the pilot lamp of warning and operating state, directly it is connected wherein said pilot lamp with the MCU processing of said control box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103090580A CN102393760A (en) | 2011-10-13 | 2011-10-13 | Drainage control system for substation cable layer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103090580A CN102393760A (en) | 2011-10-13 | 2011-10-13 | Drainage control system for substation cable layer |
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| CN102393760A true CN102393760A (en) | 2012-03-28 |
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| CN2011103090580A Pending CN102393760A (en) | 2011-10-13 | 2011-10-13 | Drainage control system for substation cable layer |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102767225A (en) * | 2012-05-31 | 2012-11-07 | 德清县供电局 | Automatic water-discharging device for power-distributing room |
| CN102769277A (en) * | 2012-05-31 | 2012-11-07 | 德清县供电局 | Improved structure of safety protection device of low-voltage distribution cabinet |
| CN102968136A (en) * | 2012-11-30 | 2013-03-13 | 杨东麟 | Accumulated water monitoring and alarming system |
| CN103557150A (en) * | 2013-11-12 | 2014-02-05 | 国家电网公司 | Intelligent drainage control system and mounting and use method thereof |
| CN104076833A (en) * | 2014-07-04 | 2014-10-01 | 国家电网公司 | Intelligent switch station water level monitoring and automatic drainage method |
| CN104133495A (en) * | 2014-07-16 | 2014-11-05 | 国家电网公司 | Remote monitoring system for substation flood control facilities |
| CN104393576A (en) * | 2012-05-31 | 2015-03-04 | 德清县供电局 | Low-voltage power distribution cabinet safety protection method |
| CN104407634A (en) * | 2014-11-25 | 2015-03-11 | 国家电网公司 | Water level monitoring system for transformer substation cable interlayer |
| CN104501905A (en) * | 2014-12-15 | 2015-04-08 | 集美大学 | Urban intelligent street ponding emergency alarm processing system |
| CN104991508A (en) * | 2015-06-24 | 2015-10-21 | 国家电网公司 | Electric power substation flood prevention monitoring system |
| WO2015180522A1 (en) * | 2014-05-26 | 2015-12-03 | 罗湘利 | High-accuracy liquid-level sensor and liquid-level remote-measuring and remote control instrument |
| CN107299895A (en) * | 2017-06-28 | 2017-10-27 | 国网山东省电力公司济南市历城区供电公司 | A kind of cable duct of substation water pump automatic start warning system |
| CN107830888A (en) * | 2017-09-14 | 2018-03-23 | 深圳供电局有限公司 | Transformer substation underground cable layer water pump working condition monitor and method |
| CN110578678A (en) * | 2019-09-10 | 2019-12-17 | 国网江苏省电力有限公司徐州供电分公司 | Intelligent flood prevention system of unattended transformer substation |
| CN110864759A (en) * | 2019-11-04 | 2020-03-06 | 广东电网有限责任公司 | Water level monitoring and control system suitable for cable trench of transformer substation |
| CN111580569A (en) * | 2020-05-25 | 2020-08-25 | 安徽华希电力科技有限公司 | Cable tunnel water level control system |
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| WO2004102163A2 (en) * | 2003-03-17 | 2004-11-25 | Joule Microsystems Canada Inc. | System enabling remote analysis of fluids |
| CN101158288A (en) * | 2007-11-15 | 2008-04-09 | 太原理工大学 | Flame-proof and safety type digitisation automatically drain system for mining |
| CN201381878Y (en) * | 2009-03-31 | 2010-01-13 | 河南省电力公司洛阳供电公司 | Remote monitoring drainage device of cable tunnel |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769277A (en) * | 2012-05-31 | 2012-11-07 | 德清县供电局 | Improved structure of safety protection device of low-voltage distribution cabinet |
| CN102769277B (en) * | 2012-05-31 | 2015-01-28 | 德清县供电局 | Improved structure of safety protection device of low-voltage distribution cabinet |
| CN104393576A (en) * | 2012-05-31 | 2015-03-04 | 德清县供电局 | Low-voltage power distribution cabinet safety protection method |
| CN102767225A (en) * | 2012-05-31 | 2012-11-07 | 德清县供电局 | Automatic water-discharging device for power-distributing room |
| CN104393576B (en) * | 2012-05-31 | 2017-09-29 | 国网浙江省电力公司湖州供电公司 | A kind of low-voltage distribution cabinet safety protecting method |
| CN102968136A (en) * | 2012-11-30 | 2013-03-13 | 杨东麟 | Accumulated water monitoring and alarming system |
| CN102968136B (en) * | 2012-11-30 | 2015-02-11 | 杨东麟 | Accumulated water monitoring and alarming system |
| CN103557150A (en) * | 2013-11-12 | 2014-02-05 | 国家电网公司 | Intelligent drainage control system and mounting and use method thereof |
| WO2015180522A1 (en) * | 2014-05-26 | 2015-12-03 | 罗湘利 | High-accuracy liquid-level sensor and liquid-level remote-measuring and remote control instrument |
| CN104076833A (en) * | 2014-07-04 | 2014-10-01 | 国家电网公司 | Intelligent switch station water level monitoring and automatic drainage method |
| CN104133495A (en) * | 2014-07-16 | 2014-11-05 | 国家电网公司 | Remote monitoring system for substation flood control facilities |
| CN104407634A (en) * | 2014-11-25 | 2015-03-11 | 国家电网公司 | Water level monitoring system for transformer substation cable interlayer |
| CN104501905A (en) * | 2014-12-15 | 2015-04-08 | 集美大学 | Urban intelligent street ponding emergency alarm processing system |
| CN104991508A (en) * | 2015-06-24 | 2015-10-21 | 国家电网公司 | Electric power substation flood prevention monitoring system |
| CN107299895A (en) * | 2017-06-28 | 2017-10-27 | 国网山东省电力公司济南市历城区供电公司 | A kind of cable duct of substation water pump automatic start warning system |
| CN107830888A (en) * | 2017-09-14 | 2018-03-23 | 深圳供电局有限公司 | Transformer substation underground cable layer water pump working condition monitor and method |
| CN110578678A (en) * | 2019-09-10 | 2019-12-17 | 国网江苏省电力有限公司徐州供电分公司 | Intelligent flood prevention system of unattended transformer substation |
| CN110864759A (en) * | 2019-11-04 | 2020-03-06 | 广东电网有限责任公司 | Water level monitoring and control system suitable for cable trench of transformer substation |
| CN111580569A (en) * | 2020-05-25 | 2020-08-25 | 安徽华希电力科技有限公司 | Cable tunnel water level control system |
| CN111580569B (en) * | 2020-05-25 | 2022-12-20 | 安徽华希电力科技有限公司 | Cable tunnel water level control system |
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121203 |
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Effective date of registration: 20121203 Address after: Jiaxing City, Zhejiang province 314000 North Road No. 99 Applicant after: Jiaxing Electric Power Bureau Applicant after: State Grid Corporation of China Address before: Jiaxing City, Zhejiang province 314000 North Road No. 99 Applicant before: Jiaxing Electric Power Bureau |
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Application publication date: 20120328 |