CN203455690U - Intelligent transformer oil-pressure on-line monitoring device - Google Patents
Intelligent transformer oil-pressure on-line monitoring device Download PDFInfo
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- CN203455690U CN203455690U CN201320561465.5U CN201320561465U CN203455690U CN 203455690 U CN203455690 U CN 203455690U CN 201320561465 U CN201320561465 U CN 201320561465U CN 203455690 U CN203455690 U CN 203455690U
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- Y—GENERAL 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The utility model discloses an intelligent transformer oil-pressure on-line monitoring device. The device comprises a central processing unit (1), an oil-pressure acquisition unit (2), a power supply unit (4) and a memory unit (6). The oil-pressure acquisition unit (2) is connected with an oil-pressure sensor. The oil-pressure acquisition unit (2), the power supply unit (4) and the memory unit (6) are all connected with the central processing unit (1). The device further comprises a communication unit (3) connected with the central processing unit (1). According to the utility model, the intelligent transformer oil-pressure on-line monitoring device can communicate with a remote intelligent transformer oil-pressure on-line monitoring background for man-machine interaction, and is capable of uploading monitoring information in time, receiving related data and instructions of other systems, and adjusting its own running state, so that the transformer is ensured to operate under safe, reliable and economic conditions. The intelligent transformer oil-pressure on-line monitoring device has the advantages of easy implementation, convenient use, low cost and high intelligence.
Description
Technical field
The utility model relates to a kind of oil pressure on-Line Monitor Device, relates in particular to a kind of intelligent transformer oil pressure on-Line Monitor Device.
Background technology
Oil-filled transformer is visual plant conventional in electric system.In order to guarantee device security reliability service, oil-filled transformer can be equipped with oil pressure relief valve conventionally, in order to releasing of oil pressure after jumping when transformer internal pressure.Along with the raising of electric system to intelligent level and operational reliability requirement, develop intelligent transformer and become a kind of trend.And intelligent transformer has proposed new demand to transformer oil pressure monitoring devices: can be under intelligent system environment, by network and miscellaneous equipment or system, undertaken alternately, be in equipment running process, to utilize pressure transducer real-time collecting oil pressure information, the duty that automatic analysis oil pressure monitoring apparatus is current, and by standardization communication network and other system real time interaction information, accept related data and the instruction of other system simultaneously, adjust the running status of self, guarantee that transformer moves under safety, reliable, economic condition.
Utility model content
The purpose of this utility model is to provide a kind of can carry out mutual intelligent transformer oil pressure on-Line Monitor Device by network and miscellaneous equipment or system.
For achieving the above object, intelligent transformer oil pressure on-Line Monitor Device of the present utility model, comprise CPU (central processing unit), oil pressure collecting unit, power supply unit, storage unit, above-mentioned oil pressure collecting unit is connected with oil pressure sensor, above-mentioned oil pressure collecting unit, power supply unit and storage unit are all connected with CPU (central processing unit), also comprise the communication unit being connected with CPU (central processing unit).In the prior art, inventor finds that the intelligent degree of existing oil pressure monitoring equipment technical merit, oil pressure is generally lower, it generally comprises microprocessor, oil pressure collecting unit, tripping operation contact, power supply unit etc., only can substantially meet local monitoring function, but be difficult to carry out integrated with the standardization communication network of intelligent transformer, can not be undertaken alternately, cannot meeting the above-mentioned requirements of intelligent transformer by network and miscellaneous equipment or system.Based on the problems referred to above, in this programme, intelligent transformer oil pressure on-Line Monitor Device is provided with communication unit, can carry out man-machine interaction with long-range intelligent transformer control background communication, upload in time monitoring information, accept related data and the instruction of system simultaneously, adjust the running status of self, guarantee that transformer moves under safety, reliable, economic condition, has higher intelligent level.
As further improvement of the utility model, above-mentioned intelligent transformer oil pressure on-Line Monitor Device also comprises the tripping operation contact being connected with CPU (central processing unit).In this programme, intelligent transformer oil pressure on-Line Monitor Device can be operated under remote mode and two kinds of patterns of local mode, generally it is operated under remote mode, the collection of oil pressure collecting unit is arranged on the oil pressure signal that the oil pressure sensor on oil tank of transformer sends and sends to CPU (central processing unit), central processing unit for processing sends to long-range intelligent transformer control backstage by communication unit, intelligent transformer control backstage judges, if meet trip condition, to intelligent transformer oil pressure on-Line Monitor Device, send trip command, trip command is transmitted to CPU (central processing unit) after being received by communication unit, central control unit is controlled switching on and off of tripping operation contact according to trip command, and then the tripping operation of control transformer.Under remote mode, intelligent transformer oil pressure on-Line Monitor Device is carried out man-machine interaction by communication unit and long-range intelligent transformer control background communication, is convenient to long-range intelligent transformer control backstage and monitors, and has higher intelligent level.Intelligent transformer oil pressure on-Line Monitor Device can automatic communication state detection, when there is network failure, intelligent transformer oil pressure on-Line Monitor Device operates under local mode, it uses as conventional oil pressure monitoring apparatus, the collection of oil pressure collecting unit is arranged on the oil pressure signal that the oil pressure sensor on oil tank of transformer sends and sends to CPU (central processing unit), the oil pressure signal that the logical contrast of CPU (central processing unit) collects and the oil pressure threshold value of setting, thereby control switching on and off of tripping operation contact, and then the tripping operation of control transformer.The safe operation of transformer is extremely important, only depends on the tripping operation of local control transformer and the one side of closing a floodgate to have some potential safety hazards, and feedback information arrives system or related personnel in time on the other hand.In this programme, the tripping operation of transformer and combined floodgate can pass through long-range intelligent transformer control Background control, and its running status can, by remote monitoring, improve the security of transformer operation and the convenience of management and control greatly.
Further, above-mentioned intelligent transformer oil pressure on-Line Monitor Device also comprises display unit, control module, above-mentioned display unit and control module are all connected in CPU (central processing unit), display unit is for local oil pressure numerical value, the device parameter of showing, control module is used for providing field control function.
Preferably, above-mentioned display unit and control module are touch display screen.
Further, above-mentioned intelligent transformer oil pressure on-Line Monitor Device also comprises the watchdog circuit being connected with CPU (central processing unit), to improve the reliability of this device, occurs deadlock situation while preventing work.
Preferably, above-mentioned communication unit is RS485 interface unit.
Preferably, above-mentioned communication unit is ethernet communication unit.
Further, above-mentioned intelligent transformer oil pressure on-Line Monitor Device also comprises screening can, and above-mentioned tripping operation contact is arranged on screening can.
Preferably, above-mentioned screening can adopts stainless steel material to make, the effectively shielded transformer interference of strong-electromagnetic field environment around.
With respect to prior art, the utlity model has following advantage and beneficial effect:
1, the utility model, by communication unit and long-range intelligent transformer control background communication, is realized the long-range remote monitoring on intelligent transformer control backstage, the man-machine interactions such as tripping operation of Long-distance Control transformer have higher intelligent level;
2, the utility model provides remote mode and two kinds of operational modes of local mode, can realize automatic conversion, when communication is normal between two kinds of patterns, operate under remote mode, regularly upload oil pressure Monitoring Data, by intelligent transformer control backstage, provide judged result, for operations staff's reference; During communication abnormality, automatically start local mode, as conventional oil pressure monitoring equipment, use, by the oil pressure threshold value of setting, control switching on and off of tripping operation contact, so the tripping operation of control transformer, highly versatile, easy to use;
3, the utility model adopts full-closed structure, barrier propterty is by meeting IP65 standard-required, screening can material is stainless steel, and on shell, the plastics of communication interface are isolated signal transmission and screening can, the effectively shielded transformer interference of strong-electromagnetic field environment to signal around;
4, the utlity model has information conversion and communication function, support IEC61850 communication modes, can directly be connected with intelligent transformer standardization communication network;
5, the utility model enforcement is easy, easy to use, cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the connection diagram of communication unit.
Marginal data: 1, CPU (central processing unit); 2, oil pressure collecting unit; 3, communication unit; 4, power supply unit; 5, tripping operation contact; 6, storage unit; 7, display unit; 8, control module; 9, watchdog circuit.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
[embodiment 1]
As shown in Figure 1, the intelligent transformer oil pressure on-Line Monitor Device of the present embodiment, have and comprise for isolated electromagnetic interference (EMI), the screening can of fixing internal device, on screening can, be provided with for transformer and trip, the tripping operation contact 5 closing a floodgate, screening can inside is provided with CPU (central processing unit) 1, for gathering the oil pressure collecting unit 2 of oil pressure, communication unit 3 for the intelligent transformer control background communication with long-range, power supply unit 4, for storing the storage unit 6 of historical oil pressure data, above-mentioned oil pressure collecting unit 1 is connected with oil pressure sensor, above-mentioned oil pressure collecting unit 2, communication unit 3, power supply unit 4, tripping operation contact 5, storage unit 6 is all connected in CPU (central processing unit) 1.In the present embodiment, CPU (central processing unit) 1 mainly realizes processing, judgement and the tripping operation control of contact 5 and the overall control of system of the fuel injection pressure signal of system, can adopt the control chips such as general microprocessor, FPGA, CPLD; Storage unit 6 is for storing historical oil pressure data, for transformer trip accident reason provides the oil pressure data of Continuous Tracking, can adopt the general-purpose storages such as general internal memory, hard disk, also can adopt some dedicated storage means; Communication unit 3 can be wire communication unit, as ethernet communication unit, optical fiber communication unit, can be also wireless communication unit.Tripping operation contact 5 is the tripping operation contact/trip contact of transformer, according to the instruction of CPU (central processing unit) 1, implements tripping operation or closes a floodgate.In the present embodiment, oil pressure sensor and oil pressure collecting unit 2 can have multiple connected mode, and as (1) can be connected with oil pressure collecting unit 2 is wireless by setting up zigbee communication module, now oil pressure collecting unit 2 has zigbee communication module too; (2) directly by RS485 circuit, be connected with oil pressure collecting unit 2, now oil pressure collecting unit 2 corresponds to RS485 telecommunication circuit; (3) be directly connected with oil pressure collecting unit 2, oil pressure collecting unit 2 can also comprise the signal conditioning circuits such as amplifying circuit and A/D convertor circuit.Collecting sensor signal is automatically monitoring, the very common technology of remote control field, above-mentioned several be several conventional modes and circuit, in the present embodiment, repeat no more.
[embodiment 2]
On the basis of embodiment 1, the intelligent transformer oil pressure on-Line Monitor Device of the present embodiment, is also connected with display unit 7, control module 8 in its CPU (central processing unit) 1.This display unit 7 and control module 8 are for being arranged on the touch display screen on screening can, along with popularizing of touch display screen equipment, its cost constantly reduces, and use also very convenient, touch display screen has demonstration effect simultaneously and control function is provided, and realizes local human-computer interaction function, can be used for local showing that oil pressure numerical value, device parameter check, historical record inquiry etc., and can be by oil pressure data, log from local copy out.In practical application, above-mentioned display unit 7 and control module 8 also can adopt other devices to realize, and such as display unit 7, adopt display, control module 8 to adopt button etc.
[embodiment 3]
On the basis of embodiment 1 or 2, the intelligent transformer oil pressure on-Line Monitor Device of the present embodiment also comprises the watchdog circuit 9 being connected with CPU (central processing unit) 1, while preventing intelligent transformer oil pressure on-Line Monitor Device work, there is deadlock situation, improve the reliability of device.It is that the chip of MAX813L is realized that watchdog circuit 9 can adopt model, has a 1.25V power fail warning threshold detector in this chip, can realize: power on, the reset function under power-down state; WATCHDOG output function; Hand-reset input function.
[embodiment 4]
On above-described embodiment basis, in the present embodiment, the communication unit 3 of intelligent transformer oil pressure on-Line Monitor Device is used RS485 communication, communication unit 3 is RS485 interface unit, specifically can adopt MAX485 chip to realize, on screening can, correspondence is provided with rj45 communication interface, as shown in Figure 2, two output pin A of MAX485 chip, B is connected with two pins up and down of rj45 communication interface, communication unit 3 has information conversion and communication function, support IEC61850 communication modes, support this intellectuality transformer oil pressure on-Line Monitor Device to be directly connected with intelligent transformer standardization communication network, mutual according to IEC61850 standard and intelligent transformer control backstage.In this programme, adopt RJ45 interface, the plastics of RJ45 interface are by signal transmission and screening can isolation, the effectively shielded transformer interference of strong-electromagnetic field environment to signal around.
[embodiment 5]
The difference of the present embodiment and embodiment 4 is, the communication unit 3 of intelligent transformer oil pressure on-Line Monitor Device adopts ethernet communication unit, be specially a PHY network chip, can adopt Realtek 8201BL or Realtek 8139C/D chip to realize, while adopting PHY network chip, on its screening can, correspondence is provided with rj45 communication interface, and CPU (central processing unit) 1 and communication unit 3 match, there is information conversion and communication function, support IEC61850 communication modes, support this intellectuality transformer oil pressure on-Line Monitor Device to be directly connected with intelligent transformer standardization communication network, mutual according to IEC61850 standard and intelligent transformer control backstage.In addition, it is the power/energy computation chip of CS5460 that the oil pressure collecting unit 2 in the present embodiment can adopt model, and it receives the electric signal from oil pressure sensor, and sends this signal to CPU (central processing unit) 1; CPU (central processing unit) 1 can adopt the 80C51 microcontroller of the P89V51RD2 of Philips company model; It is that the chip of LM2576 is realized that power supply unit 4 can adopt model, for other circuit provide power supply, and accepts the wide-range power input of a 7-36V DC; It is the chip realization of AT25020 that storage unit 6 can adopt model.The selection of said chip is only preferred embodiment, for those of ordinary skills, the identical function that chip model is selected, the simple transformation of circuit realizes circuit is very easy to, therefore in practical application, the concrete model of the chip selection of above-mentioned unit, chip is selected, the simple replacement of circuit can be selected according to the actual requirements.
The intelligent transformer oil pressure on-Line Monitor Device of the present embodiment also adopts full-closed structure, only retains basic interface on its screening can, and its screening can adopts stainless steel material to make, the effectively shielded transformer interference of strong-electromagnetic field environment around.
Below be only preferred implementation of the present utility model, protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, the some improvements and modifications not departing under the utility model principle prerequisite, should be considered as protection domain of the present utility model.
Claims (9)
1. intelligent transformer oil pressure on-Line Monitor Device, comprise CPU (central processing unit) (1), oil pressure collecting unit (2), power supply unit (4), storage unit (6), described oil pressure collecting unit (1) is connected with oil pressure sensor, described oil pressure collecting unit (2), power supply unit (4) and storage unit (6) are all connected with CPU (central processing unit) (1), it is characterized in that, also comprise the communication unit (3) being connected with CPU (central processing unit) (1).
2. intelligent transformer oil pressure on-Line Monitor Device according to claim 1, is characterized in that, also comprises the tripping operation contact (5) being connected with CPU (central processing unit) (1).
3. intelligent transformer oil pressure on-Line Monitor Device according to claim 1 and 2, it is characterized in that, also comprise display unit (7), control module (8), described display unit (7) and control module (8) are all connected in CPU (central processing unit) (1).
4. intelligent transformer oil pressure on-Line Monitor Device according to claim 3, is characterized in that, described display unit (7) and control module (8) are touch display screen.
5. intelligent transformer oil pressure on-Line Monitor Device according to claim 3, is characterized in that, also comprises the watchdog circuit (9) being connected with CPU (central processing unit) (1).
6. intelligent transformer oil pressure on-Line Monitor Device according to claim 3, is characterized in that, described communication unit (3) is RS485 interface unit.
7. intelligent transformer oil pressure on-Line Monitor Device according to claim 3, is characterized in that, described communication unit (3) is ethernet communication unit.
8. intelligent transformer oil pressure on-Line Monitor Device according to claim 2, is characterized in that, also comprise screening can, described tripping operation contact (5) is arranged on screening can.
9. intelligent transformer oil pressure on-Line Monitor Device according to claim 8, is characterized in that, described screening can adopts stainless steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561465.5U CN203455690U (en) | 2013-09-11 | 2013-09-11 | Intelligent transformer oil-pressure on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561465.5U CN203455690U (en) | 2013-09-11 | 2013-09-11 | Intelligent transformer oil-pressure on-line monitoring device |
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| Publication Number | Publication Date |
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| CN203455690U true CN203455690U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320561465.5U Expired - Lifetime CN203455690U (en) | 2013-09-11 | 2013-09-11 | Intelligent transformer oil-pressure on-line monitoring device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102210A (en) * | 2014-07-25 | 2014-10-15 | 国家电网公司 | Multimedia energy efficiency monitoring method |
| CN104793070A (en) * | 2015-03-12 | 2015-07-22 | 国网浙江海盐县供电公司 | Intelligent distribution transformer online monitoring system |
| CN105759759A (en) * | 2016-03-10 | 2016-07-13 | 浙江工贸职业技术学院 | Line production equipment and operation intelligent networking management system |
| CN107063564A (en) * | 2017-04-07 | 2017-08-18 | 国网四川省电力公司 | The few oily equipment monitoring system of electric power |
-
2013
- 2013-09-11 CN CN201320561465.5U patent/CN203455690U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104102210A (en) * | 2014-07-25 | 2014-10-15 | 国家电网公司 | Multimedia energy efficiency monitoring method |
| CN104102210B (en) * | 2014-07-25 | 2016-05-11 | 国家电网公司 | A kind of multimedia energy efficiency monitoring method |
| CN104793070A (en) * | 2015-03-12 | 2015-07-22 | 国网浙江海盐县供电公司 | Intelligent distribution transformer online monitoring system |
| CN105759759A (en) * | 2016-03-10 | 2016-07-13 | 浙江工贸职业技术学院 | Line production equipment and operation intelligent networking management system |
| CN107063564A (en) * | 2017-04-07 | 2017-08-18 | 国网四川省电力公司 | The few oily equipment monitoring system of electric power |
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Granted publication date: 20140226 |
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