CN202268749U - Intelligent security monitoring device for box transformer substation - Google Patents
Intelligent security monitoring device for box transformer substation Download PDFInfo
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- CN202268749U CN202268749U CN2011204192619U CN201120419261U CN202268749U CN 202268749 U CN202268749 U CN 202268749U CN 2011204192619 U CN2011204192619 U CN 2011204192619U CN 201120419261 U CN201120419261 U CN 201120419261U CN 202268749 U CN202268749 U CN 202268749U
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Abstract
The utility model relates to an intelligent security monitoring device for a box transformer substation. The intelligent security monitoring device comprises a protective measurement and control singlechip. The input end of the protective measurement and control singlechip is connected with a transformer plug-in card, a regulation circuit, a FLASH memory module and a watchdog and real time clock (RTC) module respectively, and the output end of the protective measurement and control singlechip is connected with a wireless general packet radio service (GPRS) communication module, a wired RS485 communication module, a human-computer display singlechip and a relay output port plug-in respectively. The intelligent security monitoring device for the box transformer substation integrates protection, measurement, control, monitoring and communication functions; simultaneously, flashover accidents caused by dews produced by the effects of temperature and humidity in outdoor enclosed floor mounting are combined, so that an additional temperature measurement and control function is realized to damage a dew production environment; moreover, additional antitheft and smoke alarming functions are realized. RS485 and GPRS/global systems of mobile communications (GSM) communication technologies are adopted for networking communication, so that remote wireless communication can be realized, and the requirements of intellectualization and unattended operation of the box transformer substation are really met.
Description
Technical field:
The utility model relates to a kind of case and becomes the intelligent safety monitoring device, is applicable to that electric pressure is the security monitoring of the big capacity box-type substation of 35kV-10kV/0.4kV.
Background technology:
Box-type substation is a kind ofly to be combined in the miniaturization controller switching equipment in the casing to high-voltage switch gear, transformer and low-voltage distribution apparatus by certain connection plan.Along with The development in society and economy, in town planning is built, more and more pay attention to environmental greening; Residential quarters are also developed to garden type day by day; Therefore in urban network restructuring, the selection of distribution transforming considers from aspects such as power load, power supply safeties no longer merely, also will consider harmonious with surrounding environment.In view of this point;, the distribution of residential quarters do not adopt the distribution transforming of bridge formula basically in transforming; And power distribution room also is difficult to promote owing to reasons such as addressing are difficult, floor space is big, and box change is because advantages such as volume is little, good looking appearance, installation period weak point are promoted employing fast.
The utility model content:
The utility model provides a kind of case to become the intelligent safety monitoring device, and it has incorporate protection, metering, control, monitoring, communication function, adds the measurement and control of temperature function, destroys the condensation build environment; And add safe antitheft and function of smoking alarm.On group-net communication, can realize remote radio communication, realized that really box-type substation is intelligent, unattended requirement.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: case becomes the intelligent safety monitoring device; Comprise protection observing and controlling single-chip microcomputer; Protection observing and controlling single-chip microcomputer input is connected to instrument transformer card, adjustment circuit, FLASH memory module and house dog and RTC clock module respectively, and output is connected to wireless GPRS communication module, wired RS485 communication module, man-machine display single-chip microcomputer and relay outlet plug-in unit respectively.
Be provided with the SPI communication module between said protection observing and controlling single-chip microcomputer and the man-machine display single-chip microcomputer.
Be connected with input module on the described man-machine display single-chip microcomputer.
Said protection observing and controlling single-chip microcomputer is dsPIC33FJ256GP710.
Described man-machine display single-chip microcomputer is PIC24FJ32GA004.
Compared with prior art, the advantage and the effect that the utlity model has are following:
1, telemetry function: the input of external analog of ac, be used for vasculum and become high voltage side lead-in three-phase measuring voltage, residual voltage, three-phase measurement electric current, zero-sequence current, low-voltage side outlet three-phase measuring voltage, three-phase are measured electric current.On this basis, realize the measurement and the supervision of active power, reactive power, apparent power, power factor, frequency;
2, remote signalling function: the digital quantity input, monitor high and low pressure slowdown monitoring switch position signalling in real time, and antitheft and cigarette sense information;
3, distant control function: can become service entrance switch and go out wiretap case and control, realize straighforward operation.
4, harmonic wave measuring ability: to the sampling of each loop voltage, real-time current, carry out various harmonic analysis computings, provide analysis result, like the each harmonic composition etc.
5, electric energy metrical and tariff management function: can write down the energy value of each loop, each phase, for electricity metering provides reference.
6, temperature, humidity detection function: DC analogue quantity collection.Can realize to the monitoring of transformer three-phase winding temperature the monitoring of high and low pressure room environmental temperature humidity, transformer room's ambient humidity monitoring function.And can open blower fan and heater load according to environment temperature, humidity information, and regulating box becomes internal environment, and guard box becomes the normal running environment requirement of inner each device
Description of drawings:
Fig. 1 is the theory diagram of the utility model;
Fig. 2 is the circuit theory diagrams of the utility model " wire communication " interface;
Fig. 3 opens into the amount circuit theory diagrams for the remote signalling of the utility model;
Fig. 4 is the relay digital output circuit schematic diagram of the utility model;
Fig. 5 is the circuit theory diagrams of the utility model " house dog and RTC clock ";
Fig. 6 is the utility model " radio communication " structure chart.
Among the figure: 1-protection observing and controlling single-chip microcomputer; 2-instrument transformer card; 3-adjusts circuit; 4-FLASH memory module; 5-house dog and RTC clock; 6-wireless GPRS communication module; The wired RS485 communication module of 7-; 8-man-machine display single-chip microcomputer; 9-relay outlet plug-in unit; The 10-input module; The 11-SPI communication module.
Embodiment:
Referring to Fig. 1; Case becomes the intelligent safety monitoring device, comprises protection observing and controlling single-chip microcomputer 1, and the single-chip microcomputer of protection observing and controlling single-chip microcomputer 1 is dsPIC33FJ256GP710; Protection observing and controlling single-chip microcomputer 1 input is connected to instrument transformer card 2, adjustment circuit 3, FLASH memory module 4 and house dog and RTC clock module 5 respectively; Output is connected to wireless GPRS communication module 6, wired RS485 communication module 7, man-machine display single-chip microcomputer 8 and relay outlet plug-in unit 9 respectively, is connected with input module 10 on the described man-machine display single-chip microcomputer 8, is provided with SPI communication module 11 between protection observing and controlling single-chip microcomputer 1 and the man-machine display single-chip microcomputer 8; Man-machine display single-chip microcomputer 8 is PIC24FJ32GA004; Input has 16 road analog AC signals on the described instrument transformer card 2, and input has 8 tunnel flow signals on the adjustment circuit 3, and output has 14 the road to leave signal on the relay outlet plug-in unit 9; Also imported 10 the tunnel at protection observing and controlling single-chip microcomputer 1 generation input and opened into the amount signal, above-mentioned said module is prior art.
The protection observing and controlling single-chip microcomputer of the utility model adopts the dsPIC33FJ256GP710 single-chip microcomputer of 16 MICROCHIP companies; Its inside has comprised multiple traditional external circuit, visits flash memory and SRAM etc. on DMA, PWM, serial port, Timer, watchdog timer, high speed I/O, peripheral hardware task server PTS, waveform generator, the sheet like clock generator, I/O mouth, 12 32 road A/D converters, direct memories.The maximum characteristics of this single-chip microcomputer are High Performance DSP instructions, the linear memory space of 24 bit wide instructions, the maximum 4M command word of addressable, two 40 bit accumulators; 16*16 position multiplier; The accumulator write back operations of DSP computing, the ability of exchanges data and change has been quickened in the Double Data extract operation; Improve the power of handling up of singlechip CPU, be very suitable for real-time collection, processing, storage and the transmission transmitting-receiving of multi-channel data.
The man-machine display single-chip microcomputer adopts single-chip microcomputer PIC24FJ32GA004 to be the control core, shows that adopting the big liquid crystal of 192*64, Chinese character to show adopts special-purpose word-base chip, and the standard character library is provided, and font is attractive in appearance, unified, professional; Man-machine interface is friendly, full menu in Chinese; Panel adopts the LED lamp to show information such as various states, protection, alarm, fault; And 8 button operations, to make things convenient for the user to check running status, a secondary data, fault message and parameter be set;
Protection observing and controlling single-chip microcomputer adopts 16 single-chip microcomputer dsPIC33FJ256GP710 for the control core, adopts high-performance voltage, current transformer, simultaneously 16 road alternating voltages, the magnitude of current and 8 road ambient temperature and humidities is monitored.The inner dma mode that adopts is gathered 24 road AC and DC amounts, reaches rapidity, selectivity requirement that case becomes protection;
Use environment to the case allergic effect,, prescribe a time limit greater than last, start the blower fan cooling when temperature according to temperature and humidity sensor transmissions signal.Temperature is lower than down in limited time, heater starting.When humidity during greater than threshold value, start the blower fan dehumidifying, the temperature and humidity transducer inserts Fig. 1 direct current input module and gathers;
Case becomes inside cigarette sense and gate inhibition's transducer is housed, and transmits level signal, can be on-the-spot run signal by radio communication with short message mode is communicated to user's computer and above the mobile phone.
Referring to Fig. 2, the mode that the limited communication interface of the utility model RS485 adopts is a RS-485 half-duplex bus mode.Bus mode is simple and convenient, adopts multibus to articulate mode and realizes the multi-point bus structure.Through extending out communication module, can be connected with various communication networks such as EtherNet, CAN; Disturb in order to reduce circuit, each communication modes all adopts light to isolate at a distance from chip TLP521.Bus mode adopts the full duplex RS485 of MAXIAM company to drive receiver MAX1487E module, and driving force is strong, and communication distance can reach 1200 meters, at most can 255 table apparatus networkings, with the host computer serial communication, realize remote measurement, remote signalling, distant control function.Improved the automation of distribution system.
Referring to Fig. 3, the location status that the utility model remote signalling amount is gathered isolating switch, on-load switch and fuse is to learn through the position signalling that detects its special auxiliary contact or signal relay contact; Safe antitheft and smog alarm belong to Fig. 1, and 10 the tunnel open the submodule into the amount input module, and safe antitheft is to learn through the auxiliary contact position signal of the forbidden journey switch of monitoring door; The smog alarm module is to learn through the warning auxiliary contact signal of monitoring cigarette propagated sensation sensor.Remote signalling amount input circuit is illustrated in fig. 3 shown below, and T type RC low pass filter can filter the High-frequency Interference in remote signalling loop; Resistance R 1, R2 play the current-limiting protection effect, and diode plays the effect of protection optocoupler.
Referring to Fig. 4, all defencive functions of the utility model finally control circuit breaker through the amount of leaving control unit and the on-load switch action realizes that therefore, the reliability of leaving amount control circuit directly reflects the system reliability of its supervisory control system.The amount of leaving control loop adopts transistor driving that the relay of contact is arranged.In order to improve antijamming capability, traditional remote signalling amount output loop all will be isolated through photoelectricity.In addition, when the outlet tripping operation, the GPIO0 of CPU arranges different level output with GPIO1, and GPIO0 exports " 0 ", and GPIO1 exports " 1 ", makes NAND gate Y2 output " 0 " driven for emitting lights diode.Design can prevent the malfunction in short-term at drawing DC power supply process repeat circuit K1 like this.Because when the drawing DC power supply, while CPU electrification reset, GPIO0 is identical level output with GPIO1, impossible driven for emitting lights diode, thus prevented malfunction.
Referring to Fig. 5; The utility model " house dog " resets and low-voltage observation circuit 9 is selected the FM31L278 of RAMTRON company chip for use; Link to each other with single-chip microcomputer 1 through the I2C bus; It has that real-time clock, low-voltage reset, house dog register, early voltage fault alarm function, and the height integration of this chip has promptly been practiced thrift cost, has also improved the reliability of system greatly.
Referring to Fig. 6, the GPRS module in the utility model is a radio communication part in this device.The terminal communicates in order to utilize GPRS network, must select suitable equipment to insert GPRS network.It is connected through string star communication and protection CPU processor, and accomplishes down and being connected of GPRS network in its control, thereby the data of realization and host computer pass mutually.
During work, case becomes the intelligent safety monitoring device and converts primary side PT, CT system signal to voltage signal, outputs to alternating current sampling circuit through rectification, filtering, through being input into single-chip microcomputer 1 inner A/D sampling interface behind the signal conditioning circuit.The utility model operating state is described below:
1. the utility model operate as normal that powers on; Panel operation, communication 232 lamps normally glimmer, and communication 232 indication protection CPU and wireless module normal communications detect wireless module; When fault or warning information generation; Wireless module sends note to the target mobile phones number, when normally moving, exchanges and once surveys data messages such as voltage, electric current, power, frequency to host computer transmission box-type substation inner high voltage chamber, low-pressure chamber through GPRS network.
2. during the utility model operate as normal, can monitor data messages such as primary side alternating voltage current power frequency in real time, and the protection pressing plate can be set throw and move back, protect definite value, parameter through wireline communication network RS485.
3. during the utility model operate as normal, can monitor hyperbaric chamber, low-pressure chamber ambient temperature and humidity, and can pass through blower fan, heater even load, regulate environment temperature, humidity.
4. can open into amount input module 6 by 10 the tunnel and monitor various run switch states in the case change in real time, and cigarette sense and gate inhibition's information, unusual when occurring, can inform the user by note; The user also can monitor case in real time by GPRS network and become interior various operation informations; The user can be provided with deploying troops on garrison duty and withdrawing a garrison of gate inhibition by note.
5. become primary side three-phase protective current signal and have when unusual when detecting case; If protection drops into; Then system analyzes comparison with current detection value and parameters such as the specified time definite value that is kept at setting in the FLASH memory 2, inverse time lag definite value, specified time time setting value; Send trip signal through relay output circuit 9 when surpassing the parameter of setting, and note is informed user's fault message.
Claims (4)
1. case becomes the intelligent safety monitoring device; Comprise protection observing and controlling single-chip microcomputer (1); It is characterized in that: protection observing and controlling single-chip microcomputer (1) input is connected to instrument transformer card (2), adjustment circuit (3), FLASH memory module (4) and house dog and RTC clock module (5) respectively, and output is connected to wireless GPRS communication module (6), wired RS485 communication module (7), man-machine display single-chip microcomputer (8) and relay outlet plug-in unit (9) respectively.
2. a kind of case according to claim 1 becomes the intelligent safety monitoring device, it is characterized in that: be provided with SPI communication module (11) between said protection observing and controlling single-chip microcomputer (1) and the man-machine display single-chip microcomputer (8).
3. a kind of case according to claim 1 and 2 becomes the intelligent safety monitoring device, it is characterized in that: be connected with input module (10) on the described man-machine display single-chip microcomputer (8).
4. a kind of case according to claim 3 becomes the intelligent safety monitoring device, and it is characterized in that: said protection observing and controlling single-chip microcomputer (1) is dsPIC33FJ256GP710.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204192619U CN202268749U (en) | 2011-10-28 | 2011-10-28 | Intelligent security monitoring device for box transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204192619U CN202268749U (en) | 2011-10-28 | 2011-10-28 | Intelligent security monitoring device for box transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202268749U true CN202268749U (en) | 2012-06-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204192619U Expired - Fee Related CN202268749U (en) | 2011-10-28 | 2011-10-28 | Intelligent security monitoring device for box transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202268749U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453941A (en) * | 2013-09-13 | 2013-12-18 | 国家电网公司 | Real-time monitor system for box-type substation |
| CN104165660A (en) * | 2014-09-10 | 2014-11-26 | 上海海能信息科技有限公司 | Intelligent distribution and transformation monitoring terminal capable of calculating winding temperature |
| CN104242468A (en) * | 2014-10-15 | 2014-12-24 | 四川东方电气自动控制工程有限公司 | Monitoring system for wind power generation tank type transformer |
-
2011
- 2011-10-28 CN CN2011204192619U patent/CN202268749U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453941A (en) * | 2013-09-13 | 2013-12-18 | 国家电网公司 | Real-time monitor system for box-type substation |
| CN104165660A (en) * | 2014-09-10 | 2014-11-26 | 上海海能信息科技有限公司 | Intelligent distribution and transformation monitoring terminal capable of calculating winding temperature |
| CN104165660B (en) * | 2014-09-10 | 2019-01-11 | 上海海能信息科技有限公司 | A kind of distribution transforming intelligent monitoring terminal calculating winding temperature |
| CN104242468A (en) * | 2014-10-15 | 2014-12-24 | 四川东方电气自动控制工程有限公司 | Monitoring system for wind power generation tank type transformer |
| CN104242468B (en) * | 2014-10-15 | 2017-02-01 | 四川东方电气自动控制工程有限公司 | Monitoring system for wind power generation tank type transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20141028 |
|
| EXPY | Termination of patent right or utility model |