CN202033677U - Temperature and humidity on-line monitoring and early warning system in substation - Google Patents
Temperature and humidity on-line monitoring and early warning system in substation Download PDFInfo
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- CN202033677U CN202033677U CN201120111429XU CN201120111429U CN202033677U CN 202033677 U CN202033677 U CN 202033677U CN 201120111429X U CN201120111429X U CN 201120111429XU CN 201120111429 U CN201120111429 U CN 201120111429U CN 202033677 U CN202033677 U CN 202033677U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000011664 signaling Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 10
- 239000013307 optical fiber Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a temperature and humidity on-line monitoring and early warning system in a substation. The system comprises an upper computer, at least one wireless temperature/humidity receiving and displaying device, at least one temperature sensor and at least one humidity sensor, wherein the temperature sensor and the humidity sensor are communicated with the wireless temperature/humidity receiving and displaying device via a wireless network; and the wireless temperature/humidity receiving and displaying device is used for transmitting received information to the upper computer. The system provided by the utility model is applied to a high-voltage substation, a medium-voltage power distribution device and other places, and is used for acquiring connector temperature of high-voltage electrified equipment and medium-voltage electrified equipment as well as temperature and humidity in such equipment; the sensors and the receiving device adopt wireless communication to enable that the high-voltage electrified equipment and the medium-voltage electrified equipment are isolated from the receiving device, so that junction temperature as well as the temperature and the humidity in the device can be on-line monitored, and failures resulted from overheat or super-damp can be early warned.
Description
Technical field
The utility model relates to humiture monitoring field, relates in particular to a kind of transformer station humiture on-line monitoring early warning system.
Background technology
High pressure equipment thermometric mainly contains following several mode at present, and all there are some shortcomings in these modes:
(1) common thermometric
Thermometric modes such as conventional thermopair, thermal resistance, semiconductor temperature sensor need the plain conductor transmission signals, and insulating property can not guarantee.
(2) infrared measurement of temperature
Infrared thermoviewer can't see through the cabinet door and measure internal unit, must close the cabinet door during switch cubicle operation, causes infrared mode to measure.
(3) optical fiber temperature-measurement
Optical fiber type temperature temperature measurer adopts optical fiber to transmit signal, and its temperature sensor is installed in the surface of charged object, is connected with optical fiber between temperature measurer and temperature sensor.Optical fiber has easy to break, easily broken, non-refractory.
And, high pressure equipment humidity control at present mainly is wired mode, connect humidity sensor by lead, accomplished that humidity monitors in real time, but need to connect long lead, the cabling inconvenience, choice of location is dumb, because controller circuit board system resource is limited, the humidity control of expansion multichannel is difficult to accomplish again.
The utility model content
The purpose of this utility model is to provide a kind of transformer station's humiture on-line monitoring early warning system easy to use, safe.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Transformer station of the present utility model humiture on-line monitoring early warning system, comprise the host computer that is positioned at real-time Surveillance center, at least one wireless humiture receiving and displaying device, at least one temperature sensor, at least one humidity sensor, described temperature sensor is communicated by letter with described wireless humiture receiving and displaying device by wireless network with humidity sensor, and described wireless humiture receiving and displaying device passes to described host computer with the information that receives.
Preferably, described wireless humiture receiving and displaying device comprises MCU, reaches wireless communication module, LCD display circuit, power circuit, key circuit, state indication and controlling output circuit, master-slave communication circuit, clock circuit by this MCU control.
When preferably, described wireless humiture receiving and displaying device adopts wall-hanging, guide rail, three kinds of forms of cabinet dress formula one or more.
Preferably, described temperature sensor comprises main control module, wireless communication module, temperature collect module, power module, described temperature collect module sends to described main control module with the temperature that collects, described main control module sends to the communication of described wireless humiture receiving and displaying device by described wireless communication module with temperature information, and described power module is described main control module, wireless communication module power supply.Preferred, described temperature collect module adopts digital temperature-sensing element.Described temperature collect module adopts thermopair to connect signaling conversion circuit or thermal resistance connects signaling conversion circuit.
Preferably, described humidity sensor comprises main control module, wireless communication module, humidity acquisition module, power module, described humidity acquisition module sends to described main control module with the humidity that collects, described main control module sends to the communication of described wireless humiture receiving and displaying device by described wireless communication module with humidity information, and described power module is described main control module, wireless communication module power supply.Preferred, described humidity acquisition module adopts the digital sense element that wets.Perhaps described temperature collect module adopts hygristor to connect signaling conversion circuit.
Preferably, described wireless humiture receiving and displaying device connects the start and stop of control blower fan, well heater respectively by relay.
The beneficial effects of the utility model are as follows:
Transformer station of the present utility model humiture on-line monitoring early warning system is applicable to places such as high voltage substation, medium-voltage distribution device, be used to gather the connector temperature of high pressure charging equipment and gather the interior humiture of this kind equipment, sensor and receiving trap use radio communication, make high pressure charging equipment and receiving trap isolate, thereby realized the contact temperature of these equipment and the real time on-line monitoring and overheated, the super wet early warning that causes fault of the interior humiture of device.
The utility model is respond well at substation operation, the temperature rise that can monitor the high-tension apparatus node in real time changes, make power transformation operation department and maintenance department can recognize the temperature of contact in the cabinet at any time, in time find overheating fault hidden danger, meet the plant maintenance thought of the substation equipment repair based on condition of component of present power industry popularization.Humidity in this system's real-time watch device simultaneously, and the automatic well heater that starts dehumidifies in the equipment when humidity exceeds standard, prevented erosion because of moisture, and the equipment generation of corrosion phenomena gradually such as bus, isolating switch, current transformer, voltage transformer (VT), lightning arrester, insulator, cable termination in the cabinet occurs, thereby phenomenons such as apparatus insulated puncture, phase fault, equipment malfunction and tripping have been avoided causing because of above reason.
Description of drawings
Fig. 1 is a transformer station of the present utility model humiture on-line monitoring early warning system structured flowchart;
Fig. 2 is the structured flowchart of wireless humiture receiving and displaying device;
Fig. 3 is wall-hanging wireless humiture receiving and displaying device circuit theory diagrams;
Fig. 4 is guide tracked and circuit theory diagrams cabinet dress type wireless humiture receiving and displaying device;
Fig. 5 is the radio temperature sensor theory diagram;
Fig. 6 is the circuit theory diagrams of radio temperature sensor;
Fig. 7 is NRF24L01+ wireless communication module circuit theory diagrams;
Fig. 8 is CC1100 wireless communication module circuit theory diagrams;
Fig. 9 is wireless humidity sensor theory diagram;
Figure 10 is wireless humidity sensor circuit schematic diagram.
Embodiment
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model beneficial effect is further described.
Among the embodiment of the present utility model, referring to accompanying drawing 1, transformer station's humiture on-line monitoring early warning system comprises three types wireless humiture receiving and displaying device (be called for short and receive main frame): cabinet dress formula receives main frame, wall-hanging reception main frame, guide tracked reception main frame, each receives main frame can support 3 road to No. 240 temperature sensors and 1 road to No. 40 humidity sensor, uses radio frequency signal to communicate between temperature, humidity sensor and the reception main frame.Every reception main frame connects control blower fan and well heater by the two-way relay.
The wireless humiture receiving and displaying device, as shown in Figure 2, form by single-chip microcomputer (MCU), wireless communication module, LCD display circuit, power circuit, key circuit, state indication and controlling output circuit, master-slave communication circuit, clock circuit and shell mechanism etc.Among the embodiment of the present utility model, select the LCD display circuit of the LCD of RA8806 module as wall-hanging main frame for use, NOKIA5110 LCD is as the LCD display circuit of guide rail and cabinet dress type main frame, and circuit diagram is respectively referring to Fig. 3, Fig. 4.
The composition structural drawing of radio temperature sensor referring to Fig. 5, is made up of temperature conversion circuit, wireless communication module, crystal oscillator, power circuit and shell mechanism etc. that single-chip microcomputer (MCU), digital temperature-sensing element or hot thermocouple resistance+A/D convertor circuit are formed.Wherein wireless communication module is selected the NRF24L01 series module or a little row modules of the CC1100 of Chipcon company of Nordic company; Digital temperature-sensing element is DS18B20, and thermopair is a K series of heat galvanic couple, and the conversion of signals chip uses the MAX6675 chip.High energy battery is the lithium-thionyl acid amides battery of 1200mah, and power supply mode is also supported sun power and alternating electric field induction way to take power, and circuit theory diagrams are referring to Fig. 6 to Fig. 8.
Wireless humidity sensor referring to accompanying drawing 9, is made up of temperature conversion circuit, wireless communication module, crystal oscillator, power circuit and shell mechanism etc. that single-chip microcomputer (MCU), the wet element of digital sense or hygristor+A/D convertor circuit are formed.Referring to accompanying drawing 10, wherein wireless communication module is selected the NRF24L01 series module or a little row modules of the CC1100 of Chipcon company of Nordic company; The wet element of digital sense is the SHT family chip of Switzerland Sheng Saier company, and the wet element of sense adopts the NTC series sensor.High energy battery is the lithium-thionyl acid amides battery of 1200mah.
The utility model uses wireless mode that the contact temperature of high pressure equipment is transferred to receiving end, has accomplished electric insulation; Use wireless mode that the humiture in the high pressure equipment is transferred to receiving end, thereby make that the sensor installation position selection is more flexible, save numerous and diverse cabling; The sensor power supply mode is supported multiple energy-provision way such as powered battery, solar powered, online power taking, can accomplish long-play more than 10 years; At the sensor of powered battery mode, have the battery electric quantity monitoring function, the client before the last time maintenance as discovery electric weight deficiency, timely emat sensor more; Have two-way relay output, every road output load capacity greater than～220V/2A, directly driving switch cabinet blower fan and cabinet internal heater; Possess expanded function, every covering device is supported 3 road to No. 240 temperature sensors and 1 road to No. 40 humidity sensor; The support real time data is browsed, alarm inquiry, and parameter such as is provided with at function; Possess the interface of communicating by letter, real time data and alarm data can be uploaded to background computer, and can accept inquiry and parameter that background computer sends order is set with daemon software.
The utility model pre-defines the frequency range of system communication and inner ID number before use, during use, wireless temperature, humidity sensor send to the reception main frame with radio frequency signal (2.4Ghz or 433Mhz ISM band) after collecting the temperature, humidity of tested contact.After the reception main frame receives wireless temperature and moisture signal, make judgement according to the temperature upper lower limit value that sets, temperature upper lower limit value, produce, then start the hummer alarm if any overrun condition, corresponding pilot lamp is lighted, and the storage warning information is to internal storage.For the super upper limit case of temperature, main frame can start the blower fan cooling by relay contact, and for the super upper limit case of humidity, but the main frame relay contact starts the well heater dehumidifying.
Main frame possesses the communication interface with host computer main website software, can upload the data in the host computer of real-time Surveillance center by agreements such as CDT, Modbus Rtu.
Claims (10)
1. transformer station's humiture on-line monitoring early warning system, it is characterized in that: comprise the host computer that is positioned at real-time Surveillance center, at least one wireless humiture receiving and displaying device, at least one temperature sensor, at least one humidity sensor, described temperature sensor is communicated by letter with described wireless humiture receiving and displaying device by wireless network with humidity sensor, and described wireless humiture receiving and displaying device passes to described host computer with the information that receives.
2. transformer station according to claim 1 humiture on-line monitoring early warning system is characterized in that: described wireless humiture receiving and displaying device comprises MCU, reaches wireless communication module, LCD display circuit, power circuit, key circuit, state indication and controlling output circuit, master-slave communication circuit, clock circuit by this MCU control.
3. transformer station according to claim 1 humiture on-line monitoring early warning system is characterized in that: one or more that described wireless humiture receiving and displaying device employing is wall-hanging, guide tracked, cabinet is adorned three kinds of forms of formula.
4. transformer station according to claim 1 humiture on-line monitoring early warning system, it is characterized in that: described temperature sensor comprises main control module, wireless communication module, temperature collect module, power module, described temperature collect module sends to described main control module with the temperature that collects, described main control module sends to the communication of described wireless humiture receiving and displaying device by described wireless communication module with temperature information, and described power module is described main control module, wireless communication module power supply.
5. transformer station according to claim 4 humiture on-line monitoring early warning system, it is characterized in that: described temperature collect module adopts digital temperature-sensing element.
6. transformer station according to claim 4 humiture on-line monitoring early warning system is characterized in that: described temperature collect module adopts thermopair to connect signaling conversion circuit or thermal resistance connects signaling conversion circuit.
7. transformer station according to claim 1 humiture on-line monitoring early warning system, it is characterized in that: described humidity sensor comprises main control module, wireless communication module, humidity acquisition module, power module, described humidity acquisition module sends to described main control module with the humidity that collects, described main control module sends to the communication of described wireless humiture receiving and displaying device by described wireless communication module with humidity information, and described power module is described main control module, wireless communication module power supply.
8. transformer station according to claim 7 humiture on-line monitoring early warning system is characterized in that: described humidity acquisition module adopts the digital sense element that wets.
9. transformer station according to claim 7 humiture on-line monitoring early warning system is characterized in that: described temperature collect module adopts hygristor to connect signaling conversion circuit.
10. transformer station according to claim 1 humiture on-line monitoring early warning system is characterized in that: described wireless humiture receiving and displaying device connects the start and stop of control blower fan, well heater respectively by relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120111429XU CN202033677U (en) | 2011-04-15 | 2011-04-15 | Temperature and humidity on-line monitoring and early warning system in substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120111429XU CN202033677U (en) | 2011-04-15 | 2011-04-15 | Temperature and humidity on-line monitoring and early warning system in substation |
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| Publication Number | Publication Date |
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| CN202033677U true CN202033677U (en) | 2011-11-09 |
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| CN201120111429XU Expired - Fee Related CN202033677U (en) | 2011-04-15 | 2011-04-15 | Temperature and humidity on-line monitoring and early warning system in substation |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609020A (en) * | 2012-04-25 | 2012-07-25 | 山西省电力公司长治供电分公司 | Remote monitoring device of transformer substation |
| CN102738895A (en) * | 2012-06-14 | 2012-10-17 | 河南省电力公司信阳供电公司 | Transformer station monitoring system |
| CN104135074A (en) * | 2014-07-31 | 2014-11-05 | 上海交通大学 | Extra-high-voltage substation equipment temperature monitoring and alarming method based on outlier detection |
| CN104697653A (en) * | 2015-02-10 | 2015-06-10 | 上海交通大学 | Temperature pre-warning system for key equipment of ultrahigh-pressure power distributing station based on web |
| US10055781B2 (en) | 2015-06-05 | 2018-08-21 | Boveda Inc. | Systems, methods and devices for controlling humidity in a closed environment with automatic and predictive identification, purchase and replacement of optimal humidity controller |
| US10909607B2 (en) | 2015-06-05 | 2021-02-02 | Boveda Inc. | Systems, methods and devices for controlling humidity in a closed environment with automatic and predictive identification, purchase and replacement of optimal humidity controller |
-
2011
- 2011-04-15 CN CN201120111429XU patent/CN202033677U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102609020A (en) * | 2012-04-25 | 2012-07-25 | 山西省电力公司长治供电分公司 | Remote monitoring device of transformer substation |
| CN102738895A (en) * | 2012-06-14 | 2012-10-17 | 河南省电力公司信阳供电公司 | Transformer station monitoring system |
| CN104135074A (en) * | 2014-07-31 | 2014-11-05 | 上海交通大学 | Extra-high-voltage substation equipment temperature monitoring and alarming method based on outlier detection |
| CN104697653A (en) * | 2015-02-10 | 2015-06-10 | 上海交通大学 | Temperature pre-warning system for key equipment of ultrahigh-pressure power distributing station based on web |
| US10055781B2 (en) | 2015-06-05 | 2018-08-21 | Boveda Inc. | Systems, methods and devices for controlling humidity in a closed environment with automatic and predictive identification, purchase and replacement of optimal humidity controller |
| US10909607B2 (en) | 2015-06-05 | 2021-02-02 | Boveda Inc. | Systems, methods and devices for controlling humidity in a closed environment with automatic and predictive identification, purchase and replacement of optimal humidity controller |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20170415 |