CN202871052U - Comprehensive monitoring alarm system used for 10kV outdoor power distribution network transformer - Google Patents

Comprehensive monitoring alarm system used for 10kV outdoor power distribution network transformer Download PDF

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Publication number
CN202871052U
CN202871052U CN 201220481194 CN201220481194U CN202871052U CN 202871052 U CN202871052 U CN 202871052U CN 201220481194 CN201220481194 CN 201220481194 CN 201220481194 U CN201220481194 U CN 201220481194U CN 202871052 U CN202871052 U CN 202871052U
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China
Prior art keywords
module
transformer
circuit
voltage
input
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Expired - Fee Related
Application number
CN 201220481194
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Chinese (zh)
Inventor
张晓明
王琳
高兆丽
杨洋
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State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN 201220481194 priority Critical patent/CN202871052U/en
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Publication of CN202871052U publication Critical patent/CN202871052U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a comprehensive monitoring system used for a 10kV outdoor power distribution network transformer. The comprehensive monitoring system comprises a central processing module, a data transmission module, an electric energy metering and undervoltage detection module, a UPS (uninterrupted power supply) module, a sampling module, a keyboard circuit, a display circuit, an oil temperature measuring circuit, an on-site police whistle, and an alarm receiving monitoring center, wherein the data transmission module, the electric energy metering and undervoltage detection module, the UPS module, the sampling module, the keyboard circuit, the display circuit, the oil temperature measuring circuit and the on-site police whistle are respectively connected with the central processing module, and the data transmission module is connected with the alarm receiving monitoring center through a wireless communication network. The comprehensive monitoring alarm system is characterized by agile reaction, good reliability, high cost performance and convenient operation, can not only monitor operation parameters of a power transformer in real time, but also can effectively prevent the transformer from being stolen, and thus plays an important role in improving power supply quality of the electric power system, enhancing reliability of the power distribution network and promoting safety in production of industrial and mining enterprises.

Description

A kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer
Technical field
The utility model relates to a kind of electric power supervisory control warning system, relates in particular to a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer.
Background technology
In the oil field, mine, rural area and the vast open-air area of other Regional Distribution, transmission line of electricity and power transformer are because often facing stolen danger away from power supply administration, these equipment are configured in the field for a long time in addition, unmanned, irregular operation often occurs, but the operator on duty can't in time understand the misoperation situation of these equipment.In case the stolen or misoperation of power transmission line and power transformer will cause very large economic loss, cause great hidden danger for the stable operation of electric system and the safety in production of the large industrial enterprises such as oil field, mine.Therefore, no matter be the safe operation of electric system or the safety in production of large industrial enterprise, objectively all need a kind of like this intelligent artifact, it can accurately detect the operation conditions of the power equipments such as transformer, in case abnormal conditions occur, in time accurately report the operator on duty.
For above-mentioned situation, domestic expert has proposed many solutions, existing practical scheme has again theoretical the analysis and derivation: have the expert to propose a kind of design proposal based on microwave induced formula power line anti-theft on-line detecting system, utilize microwave induced principle, inducing moving objects is also obtained signal, adopts global system for mobile communications communication module and Control Room to carry out information interaction; There is the expert to provide a kind of substation transformer on-line monitoring system based on global system for mobile communications GSM sms technique, the design proposal of Unattended substation system; There is the expert to provide respectively Integrated Real-time Monitoring System For Distribution Transformer, rural power line burglary-resisting system, Distribution Automatization System Design scheme based on GPRS (GPRS); There is the expert to derive with detailed theory and provided respectively that the antitheft detection of a kind of road lighting cable, new location method and 10kV grid equipment are antitheft, the analysis of anti-tamper system alarm threshold value, for practical scheme provides theoretical foundation.Such scheme has all been verified their rationality to a certain extent, but has mostly only proposed a kind of design concept of block diagram formula, and design comparison is general, lacks necessary hardware and software and supports.
This shows that prior art needs further improvement and develops.
The utility model content
The utility model provides a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer for solving above-mentioned defective of the prior art, operational factor that can not only the Real-Time Monitoring power transformer, can also effectively prevent the generation of the stolen phenomenon of transformer, reliably improve the power supply quality of electric system.
For solving the problems of the technologies described above, the utility model scheme comprises: a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer, it is characterized in that, comprise central processing module, data transmission module, electric energy metrical and under-voltage detection module, the ups power module, sampling module, keyboard circuit, display circuit, the fuel temperature measurement circuit, on-the-spot siren and the Surveillance center that receives a crime report, described data transmission module, electric energy metrical and under-voltage detection module, the ups power module, sampling module, keyboard circuit, display circuit, the fuel temperature measurement circuit links to each other with central processing module respectively with on-the-spot siren, and described data transmission module links to each other with the Surveillance center that receives a crime report by wireless communication networks.
Further, described sampling module comprises switching input module and analog input module, and described switching input module is connected with central processing module and is connected with body shock sensor, transformer shock sensor, Passive Infrared Sensor and warning device pick-proof sensor; Described analog input module comprises current transformer and voltage transformer (VT), and described current transformer is connected with voltage transformer (VT) with electric energy metrical and is connected with under-voltage detection module.
Further, described data transmission module comprises interconnective voice module and wireless communication module.
Further, described central processing module comprises the C8051F360 single-chip microcomputer.
Further, described electric energy metrical and under-voltage detection module comprise the ATT7022B chip.
Further, the described Surveillance center that receives a crime report is comprised of terminal computer, receive a crime report phone and electronic curtain, and described terminal computer, the phone of receiving a crime report access wireless communication networks are connected with data transmission module.
Further, described keyboard circuit comprises the PT2262/2272 codec chip.
Further, described fuel temperature measurement circuit comprises the DS18B20 temperature sensor, is used for finishing the transformer oil temperature measurement.
Further, described ups power module comprises fuse, rectifier bridge, filtering circuit, three-phase voltage dependent resistor (VDR), discharge tube, one-level constant-current charging power, DC-DC conversion module, lead-acid accumulator, under-voltage identification circuit, switching regulator and voltage regulator, the A of described 10kV power distribution network, B, C three-phase power line connect the input end of rectifier bridge through fuse, the output terminal of rectifier bridge connects the positive input terminal of filtering circuit, the negative input end of the continuous filtering circuit of N; Three-phase voltage dependent resistor (VDR) one end span is connected between fuse and the rectifier bridge, and the other end links to each other with the upper end of discharge tube, and the lower end of discharge tube is connected to the ground; Described one-level constant-current charging power links to each other with the output terminal of filtering circuit and the input end of DC-DC conversion module respectively; The 12V lead-acid accumulator is connected across between the input end of the output terminal of one-level constant-current charging power and DC-DC conversion module through the overvoltage/undervoltage identification circuit; The output terminal of described DC-DC conversion module links to each other with the input end of LM2575 switching regulator, and the output terminal of LM2575 switching regulator links to each other with the input end of LM1117 voltage regulator.
Further, described under-voltage identification circuit comprises TL431 chip and UC3842 chip.
The beneficial effects of the utility model are: after adopting said structure, the utlity model has be quick on the draw, the high and easy to operate characteristics of good reliability, cost performance, operational factor that not only can the Real-Time Monitoring power transformer, and can effectively prevent the generation of the stolen phenomenon of transformer, to improving the power supply quality of electric system, strengthen the reliability of distribution, promote the safety in production of industrial and mining enterprises to play an important role.
Description of drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the structured flowchart of ups power module in the utility model.
Embodiment
As shown in Figure 1, a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer of the present utility model he comprise central processing module, data transmission module, electric energy metrical and under-voltage detection module, ups power module, sampling module, keyboard circuit, display circuit, fuel temperature measurement circuit, on-the-spot siren and the Surveillance center that receives a crime report.Described data transmission module, electric energy metrical link to each other with central processing module respectively with under-voltage detection module, ups power module, sampling module, keyboard circuit, display circuit, fuel temperature measurement circuit and on-the-spot siren, and described data transmission module links to each other with the Surveillance center that receives a crime report by wireless communication networks.Wherein, wireless communication networks adopts the GSM network; Described display circuit is comprised of 4 LED charactrons, is used for showing the data such as oil temperature, voltage, electric current, frequency, active power.
Further, described sampling module comprises switching input module and analog input module, and described switching input module is connected with central processing module and is connected with body shock sensor, transformer shock sensor, Passive Infrared Sensor and warning device pick-proof sensor; Described analog input module comprises current transformer and voltage transformer (VT), and described current transformer is connected with voltage transformer (VT) with electric energy metrical and is connected with under-voltage detection module.
Further, described data transmission module comprises the gsm module of interconnective voice module and Siemens TC35i.
Further, described central processing module comprises the C8051F360 single-chip microcomputer, realizes the acquisition and processing of the alert datas such as various analog quantitys, switching value, controls simultaneously gsm module and receives and sends messages and dial the police emergency number.
Further, described electric energy metrical and under-voltage detection module comprise the ATT7022B chip, as the core of described electric energy metrical and under-voltage detection module, electrical quantity (voltage, electric current, active power, power factor, frequency etc.) metering and the three-phase power line ruuning situation of finishing the Circuit Fault on Secondary Transformer circuit detect.
Further; the described Surveillance center that receives a crime report is comprised of terminal computer, receive a crime report phone and electronic curtain; described terminal computer, the phone of receiving a crime report access wireless communication networks are connected with data transmission module; be used for to receive the warning message that the scene protection alarm host machine sends, and by electronic curtain be shown to the staff and to data classification preserve.
Further, described keyboard circuit comprises the PT2262/2272 codec chip, is used for the on the spot parameters such as wireless modification alarm host machine password, system time, the number of receiving a crime report, the oil temperature upper limit, the state of deploying troops on garrison duty.
Further, described fuel temperature measurement circuit comprises the DS18B20 temperature sensor, is used for finishing the transformer oil temperature measurement.
As shown in Figure 2, described ups power module comprises fuse, rectifier bridge, filtering circuit, three-phase voltage dependent resistor (VDR), discharge tube, one-level constant-current charging power, DC-DC conversion module, 12V lead-acid accumulator, under-voltage identification circuit, switching regulator and voltage regulator, the A of described 10kV power distribution network, B, C three-phase power line connect the input end of rectifier bridge through fuse, the output terminal of rectifier bridge connects the positive input terminal of filtering circuit, the negative input end of the continuous filtering circuit of N; Three-phase voltage dependent resistor (VDR) one end span is connected between fuse and the rectifier bridge, and the other end links to each other with the upper end of discharge tube, and the lower end of discharge tube is connected to the ground; Described one-level constant-current charging power links to each other with the output terminal of filtering circuit and the input end of DC-DC conversion module respectively; The 12V lead-acid accumulator is connected across between the input end of the output terminal of one-level constant-current charging power and DC-DC conversion module through the overvoltage/undervoltage identification circuit; The output terminal of described DC-DC conversion module links to each other with the input end of LM2575 switching regulator, and the output terminal of LM2575 switching regulator links to each other with the input end of LM1117 voltage regulator.Wherein, described under-voltage identification circuit comprises that TL431 chip and UC3842 chip and peripheral circuit build, and the one-level constant-current charging power mainly is comprised of single-end flyback switching power supply and the constant-current charge control circuit that the UC3842 chip consists of.
Above-mentioned analog input module gathers respectively the power distribution network three-phase current by Current Transmit and voltage transformer pt, voltage, and link to each other with under-voltage detection module with described ATT7022B electric energy metrical, finish the electrical quantity (voltage of Circuit Fault on Secondary Transformer circuit, electric current, active power, power factor, frequencies etc.) metering detects with three-phase power line ruuning situation: a disconnected mutually threshold register is arranged among the ATT7022B, be lower than the value of disconnected phase threshold register when the value that detects the voltage effective value register, bit0 among the measuring parameter register 0x2C, bit1, bit2 just provides the three-phase pressure loss Status Flag, thereby reliably judges power transmission lines whether phase shortage or power failure.In addition, ATT7022B also can judge whether voltage, electric current phase sequence is normal by the order that detects voltage, current signal zero crossing.
In the electrical network normal power supply situation, A, B, any phase voltage of C form the DC voltage of about 300V after overcommutation (rectifier bridge is finished), filtering (filtering circuit is finished), input in the one-level constant-current charging power, then be down to 13.8V, be lead-acid accumulator trickle charge on the one hand, produce standard 12V voltage through secondary DC-DC conversion module on the other hand, for warning system provides normal working voltage.Behind grid cut-off, accumulator begins discharge automatically, for the work of secondary DC-DC conversion module, also can provide reliable 12V voltage.12V voltage through the voltage stabilizing of LM2575 module, filtering after output 5V voltage, for chips such as ATT7022B, the 3.3V voltage of exporting through the voltage stabilizing of LM1117 module is for single-chip microcomputer C8051F360.By such cooperation, guaranteed the uninterrupted of system power supply, thereby realized reliable power supply.
When adopting the 12V storage battery power supply, under-voltage identification circuit is started working, when the minimal protection voltage that detects the accumulator both end voltage and be lower than the 10.5V(12V lead-acid battery is 10.5V) time, send alerting signal, and automatically cutting off power source, stop power supply.
Overall operation mode after system building is finished is:
Alarm host machine is installed in by the monitored transformer, transformer is the stolen or abnormal conditions such as generation disconnection fault, system blackout in a single day, warning device detects immediately and reports to the operator on duty by GSM short message, voice mode, and informs concrete alert content.Receive a crime report on the electronic curtain of Surveillance center can display alarm time, place and type, be convenient near the staff commander of the dispatching center alarm set point that arrives in the very nick of time and check, and deposit alert data in database in order to inquiry.
Should be understood that; above-mentioned description for preferred embodiment is comparatively detailed; can not therefore think the restriction to the utility model scope of patent protection; those of ordinary skill in the art is under enlightenment of the present utility model; do not breaking away from the scope situation that the utility model claim protects; can also make the various deformation such as replacement, simple combination, these all fall within the protection domain of the present utility model, and the scope of asking for protection of the present utility model should be as the criterion with claims.

Claims (10)

1. comprehensively monitoring warning system that is used for 10kV outdoor electricity distribution net transformer, it is characterized in that, comprise central processing module, data transmission module, electric energy metrical and under-voltage detection module, the ups power module, sampling module, keyboard circuit, display circuit, the fuel temperature measurement circuit, on-the-spot siren and the Surveillance center that receives a crime report, described data transmission module, electric energy metrical and under-voltage detection module, the ups power module, sampling module, keyboard circuit, display circuit, the fuel temperature measurement circuit links to each other with central processing module respectively with on-the-spot siren, and described data transmission module links to each other with the Surveillance center that receives a crime report by wireless communication networks.
2. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1, it is characterized in that, described sampling module comprises switching input module and analog input module, and described switching input module is connected with central processing module and is connected with body shock sensor, transformer shock sensor, Passive Infrared Sensor and warning device pick-proof sensor; Described analog input module comprises current transformer and voltage transformer (VT), and described current transformer is connected with voltage transformer (VT) with electric energy metrical and is connected with under-voltage detection module.
3. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1 is characterized in that described data transmission module comprises interconnective voice module and wireless communication module.
4. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1 is characterized in that described central processing module comprises the C8051F360 single-chip microcomputer.
5. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1 is characterized in that described electric energy metrical and under-voltage detection module comprise the ATT7022B chip.
6. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1, it is characterized in that, the described Surveillance center that receives a crime report is comprised of terminal computer, receive a crime report phone and electronic curtain, and described terminal computer, the phone of receiving a crime report access wireless communication networks are connected with data transmission module.
7. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1 is characterized in that described keyboard circuit comprises the PT2262/2272 codec chip.
8. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1 is characterized in that described fuel temperature measurement circuit comprises the DS18B20 temperature sensor, is used for finishing the transformer oil temperature measurement.
9. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 1, it is characterized in that, described ups power module comprises fuse, rectifier bridge, filtering circuit, the three-phase voltage dependent resistor (VDR), discharge tube, the one-level constant-current charging power, the DC-DC conversion module, lead-acid accumulator, under-voltage identification circuit, switching regulator and voltage regulator, the A of described 10kV power distribution network, B, the C three-phase power line connects the input end of rectifier bridge through fuse, the output terminal of rectifier bridge connects the positive input terminal of filtering circuit, the negative input end of the continuous filtering circuit of N; Three-phase voltage dependent resistor (VDR) one end span is connected between fuse and the rectifier bridge, and the other end links to each other with the upper end of discharge tube, and the lower end of discharge tube is connected to the ground; Described one-level constant-current charging power links to each other with the output terminal of filtering circuit and the input end of DC-DC conversion module respectively; The 12V lead-acid accumulator is connected across between the input end of the output terminal of one-level constant-current charging power and DC-DC conversion module through the overvoltage/undervoltage identification circuit; The output terminal of described DC-DC module links to each other with the input end of LM2575 switching regulator, and the output terminal of LM2575 switching regulator links to each other with the input end of LM1117 voltage regulator.
10. a kind of comprehensively monitoring warning system for 10kV outdoor electricity distribution net transformer according to claim 9 is characterized in that described under-voltage identification circuit comprises TL431 chip and UC3842 chip.
CN 201220481194 2012-09-19 2012-09-19 Comprehensive monitoring alarm system used for 10kV outdoor power distribution network transformer Expired - Fee Related CN202871052U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103810813A (en) * 2014-03-11 2014-05-21 辽宁兴达电力设备有限公司 Running state alarm for power transformer
CN103824415A (en) * 2014-03-11 2014-05-28 辽宁兴达电力设备有限公司 Power transformer with running state alarm
CN104568015A (en) * 2015-01-29 2015-04-29 深圳供电局有限公司 10kV key transformer monitoring unit
CN105137150A (en) * 2015-07-30 2015-12-09 国网安徽省电力公司阜阳供电公司 Transformer data acquisition device
CN105203704A (en) * 2015-09-11 2015-12-30 四川菲博斯科技有限责任公司 Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system
CN107546850A (en) * 2016-09-20 2018-01-05 郑州蓝视科技有限公司 Substation safety video frequency monitoring method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103810813A (en) * 2014-03-11 2014-05-21 辽宁兴达电力设备有限公司 Running state alarm for power transformer
CN103824415A (en) * 2014-03-11 2014-05-28 辽宁兴达电力设备有限公司 Power transformer with running state alarm
CN104568015A (en) * 2015-01-29 2015-04-29 深圳供电局有限公司 10kV key transformer monitoring unit
CN105137150A (en) * 2015-07-30 2015-12-09 国网安徽省电力公司阜阳供电公司 Transformer data acquisition device
CN105203704A (en) * 2015-09-11 2015-12-30 四川菲博斯科技有限责任公司 Fiber bragg grating-based remote alarm type transformer gas on-line monitoring system
CN107546850A (en) * 2016-09-20 2018-01-05 郑州蓝视科技有限公司 Substation safety video frequency monitoring method

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ASS Succession or assignment of patent right

Owner name: JINAN POWER SUPPLY COMPANY OF SHANDONG ELECTRIC PO

Effective date: 20130806

Owner name: STATE ELECTRIC NET CROP.

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Effective date: 20130806

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 250012 JINAN, SHANDONG PROVINCE TO: 100031 XICHENG, BEIJING

C41 Transfer of patent application or patent right or utility model
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Effective date of registration: 20130806

Address after: 100031 Xicheng District, Chang'an Avenue, No. 86,

Patentee after: State Grid Corporation of China

Patentee after: Jinan Power Supply Co., Ltd. of Shandong Electric Power Corporation

Address before: 250012 Shandong Province, Ji'nan City Central Luoyuan Street No. 238

Patentee before: Jinan Power Supply Co., Ltd. of Shandong Electric Power Corporation

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: 20130410

Termination date: 20160919