CN202758007U - Distribution transformer unbalance degree automatic monitoring device - Google Patents

Distribution transformer unbalance degree automatic monitoring device Download PDF

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Publication number
CN202758007U
CN202758007U CN 201220235041 CN201220235041U CN202758007U CN 202758007 U CN202758007 U CN 202758007U CN 201220235041 CN201220235041 CN 201220235041 CN 201220235041 U CN201220235041 U CN 201220235041U CN 202758007 U CN202758007 U CN 202758007U
Authority
CN
China
Prior art keywords
data
terminal
wireless
monitoring
forwarding terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220235041
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Chinese (zh)
Inventor
李爱锋
崔彦伟
李振川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAODING HEREFAR ELECTRICAL TECHNOLOGY Co Ltd
Original Assignee
BAODING HEREFAR ELECTRICAL TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAODING HEREFAR ELECTRICAL TECHNOLOGY Co Ltd filed Critical BAODING HEREFAR ELECTRICAL TECHNOLOGY Co Ltd
Priority to CN 201220235041 priority Critical patent/CN202758007U/en
Application granted granted Critical
Publication of CN202758007U publication Critical patent/CN202758007U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a monitoring device used for a power transmission and distribution system, and especially relates to a distribution transformer unbalance degree automatic monitoring device. The device is composed of a network point data acquisition and wireless emission terminal, a data gathering wireless reception and forwarding terminal and a data reception and processing central terminal. The network point data acquisition and wireless emission terminal is wirelessly connected with the data gathering wireless reception and forwarding terminal via a ZigBee wireless communicator. The data gathering wireless reception and forwarding terminal is wirelessly connected with the data reception and processing central terminal via a GPRS communicator. The application of the distribution transformer unbalance degree automatic monitoring device replaces the conventional artificial monitoring mode for the distribution transformer unbalance degree monitoring, so the working intensity and the work load of the monitoring personnel are greatly reduced, the working efficiency is improved, the real-time comprehensiveness and the accuracy of the data information acquisition are greatly improved, and the comprehensive line loss calculation and analysis of the power network are facilitated.

Description

Substation transformer degree of unbalancedness automated watch-keeping facility
Technical field
The utility model relates to a kind of monitoring equipment for electrical power trans mission/distribution system, especially relates to a kind of substation transformer degree of unbalancedness automated watch-keeping facility.
Background technology
At present adopted in a large number the three-phase four-wire system mode of connection in China's town and country power distribution network, and substation transformer is the Y/Yno wiring, have a lot of single-phase loads, so the operation of the three-phase imbalance of substation transformer is inevitable.GB has stipulated that substation transformer when operation current in middle wire of Y/Yno wiring can not surpass 25% of transformer phase, line current.The increase of current in middle wire can cause the increase of transformer loss, causes simultaneously the skew of neutral point current potential.Monitoring for the substation transformer degree of unbalancedness, what adopt at present is personal monitoring's mode, namely holding the energy monitor instrument and meter by the related personnel of Utilities Electric Co. regularly tests to transformer, record three-phase current and zero-sequence current, data are inputted Computer calculation and Analysis degree of unbalancedness, the measure of making adjustment accordingly moves to mutually lighter one with fractional load from heavier one and goes up mutually, and degree of unbalancedness is down in the scope of permission.The existing defective of personal monitoring's mode is apparent, and namely the time-consuming effort of the course of work, accuracy and precision do not ensure reliably.
The utility model content
The technical problems to be solved in the utility model is: exist time-consuming effort and accuracy and precision without the defective of reliable guarantee because carrying out the monitoring of substation transformer degree of unbalancedness in personal monitoring's mode at present, and a kind of substation transformer degree of unbalancedness automated watch-keeping facility is provided, to substitute personal monitoring's mode.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of substation transformer degree of unbalancedness automated watch-keeping facility, and it compiles wireless receiving forwarding terminal and data receiver and processing central authorities end by dot data collection wireless transmit terminal, data and forms; Dot data gathers the wireless transmit terminal and includes high speed arm processor as core processor, current transformer and analog to digital converter as the data acquisition end, the data-carrier store of storing data, ZigBee wireless communication device and the working power of transmitting data information; Data are compiled wireless receiving forwarding terminal and are included the high speed arm processor as core processor, the data-carrier store of storage data, the ZigBee wireless communication device of receiving data information, GPRS communicator and the working power of transmitting data information; Data receiver is held with processing central authorities and is comprised computing machine and the GPRS communicator that is mounted with Data Management Analysis software, and computing machine is connected with the GPRS communicator; Above-mentioned dot data gathers the wireless transmit terminal and data are compiled wireless receiving forwarding terminal by ZigBee wireless communication device wireless connections, and data are compiled wireless receiving forwarding terminal and data receiver and processed central authorities and hold by GPRS communicator wireless connections.
Using method and the principle of work of this monitoring device are as follows: the current transformer that dot data gathers the wireless transmit terminal is used for the substation transformer of each site of access with three-phase current signal and the zero sequence current signal value of Real-time Collection substation transformer low-pressure side, degree of unbalancedness through calculating transformer after the analog to digital conversion, record computational data and send data to data by the ZigBee wireless communication device and compile wireless receiving forwarding terminal, data are compiled wireless receiving forwarding terminal and are responsible for receiving the Monitoring Data of sending from each dot data collection wireless transmit terminal in the one's respective area, then will be transmitted to data receiver and process central authorities' end by the GPRS communicator after the total data uniform packing, data receiver carries out computational analysis with the computing machine of processing central authorities' end to the corresponding software of data utilization that receives, and provides processing scheme (being that the mode in the hope of balance is shifted in load) in conjunction with default parameter information simultaneously.
Described dot data gathers that wireless transmit terminal and data compile that data-carrier store in the wireless receiving forwarding terminal all adopts is in Spi Flash storer, Nand Flash storer, the DDR2RAM storer one or more.
For guaranteeing that this automated watch-keeping facility has stable power supply supply when working, the working power that described dot data collection wireless transmit terminal and data are compiled wireless receiving forwarding terminal all adopts the wide input voltage range Switching Power Supply.
Be the stability and real-time precise monitoring of guaranteeing this automated watch-keeping facility operation, described dot data collection wireless transmit terminal and data are compiled wireless receiving forwarding terminal and are all also included real time clock circuit and watchdog circuit module (play the program circuit reset and restart effect).
The beneficial effects of the utility model are: personal monitoring's mode of monitoring for the substation transformer degree of unbalancedness has at present been banned in the application of this substation transformer degree of unbalancedness automated watch-keeping facility, greatly reduce on the one hand monitoring personnel's working strength and workload, saving of work and time is laborsaving, and improved work efficiency, greatly improve on the one hand the real-time comprehensive and accuracy of data information acquisition, be conducive to the carrying out of the comprehensive line loss calculating of power network and analytical work.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural representation block diagram of the present utility model.
Embodiment
A kind of substation transformer degree of unbalancedness automated watch-keeping facility, as shown in Figure 1, it compiles wireless receiving forwarding terminal and data receiver and processing central authorities end by dot data collection wireless transmit terminal, data and forms; Dot data gathers the wireless transmit terminal and includes high speed arm processor as core processor, current transformer and analog to digital converter as the data acquisition end, the data-carrier store of storing data, ZigBee wireless communication device and the working power of transmitting data information; Data are compiled wireless receiving forwarding terminal and are included the high speed arm processor as core processor, the data-carrier store of storage data, the ZigBee wireless communication device of receiving data information, GPRS communicator and the working power of transmitting data information; Data receiver is held with processing central authorities and is comprised computing machine and the GPRS communicator that is mounted with Data Management Analysis software, and computing machine is connected with the GPRS communicator; Above-mentioned dot data gathers the wireless transmit terminal and data are compiled wireless receiving forwarding terminal by ZigBee wireless communication device wireless connections, and data are compiled wireless receiving forwarding terminal and data receiver and processed central authorities and hold by GPRS communicator wireless connections.
Dot data gathers that wireless transmit terminal and data compile that data-carrier store in the wireless receiving forwarding terminal all adopts is in Spi Flash storer, Nand Flash storer, the DDR2RAM storer one or more.
The working power that dot data collection wireless transmit terminal and data are compiled wireless receiving forwarding terminal all adopts the wide input voltage range Switching Power Supply, to guarantee the stability of working power.
Dot data collection wireless transmit terminal and data are compiled wireless receiving forwarding terminal and are all also included real time clock circuit and watchdog circuit module, with operation stability and the real-time precise monitoring of guaranteeing whole device.
Using method and the principle of work of this automated watch-keeping facility are as follows: the current transformer that dot data gathers the wireless transmit terminal is used for the substation transformer of each site of access with three-phase current signal and the zero sequence current signal value of Real-time Collection substation transformer low-pressure side, degree of unbalancedness through calculating transformer after the analog to digital conversion, record computational data and send data to data by the ZigBee wireless communication device and compile wireless receiving forwarding terminal, data are compiled wireless receiving forwarding terminal and are responsible for receiving the Monitoring Data of sending from each dot data collection wireless transmit terminal in the one's respective area, then will be transmitted to data receiver and process central authorities' end by the GPRS communicator after the total data uniform packing, data receiver carries out computational analysis with the computing machine of processing central authorities' end to the corresponding software of data utilization that receives, and provides reference process scheme (being that the mode in the hope of balance is shifted in load) in conjunction with default parameter information simultaneously.

Claims (4)

1. a substation transformer degree of unbalancedness automated watch-keeping facility is characterized in that: compile wireless receiving forwarding terminal and data receiver and processing central authorities end by dot data collection wireless transmit terminal, data and form; Dot data gathers the wireless transmit terminal and includes high speed arm processor as core processor, current transformer and analog to digital converter as the data acquisition end, the data-carrier store of storing data, ZigBee wireless communication device and the working power of transmitting data information; Data are compiled wireless receiving forwarding terminal and are included the high speed arm processor as core processor, the data-carrier store of storage data, the ZigBee wireless communication device of receiving data information, GPRS communicator and the working power of transmitting data information; Data receiver is held with processing central authorities and is comprised computing machine and GPRS communicator, and computing machine is connected with the GPRS communicator; Above-mentioned dot data gathers the wireless transmit terminal and data are compiled wireless receiving forwarding terminal by ZigBee wireless communication device wireless connections, and data are compiled wireless receiving forwarding terminal and data receiver and processed central authorities and hold by GPRS communicator wireless connections.
2. substation transformer degree of unbalancedness automated watch-keeping facility according to claim 1 is characterized in that: described dot data gathers that wireless transmit terminal and data compile that data-carrier store in the wireless receiving forwarding terminal all adopts is in Spi Flash storer, Nand Flash storer, the DDR2RAM storer one or more.
3. substation transformer degree of unbalancedness automated watch-keeping facility according to claim 1 is characterized in that: described dot data gathers the working power that wireless transmit terminal and data compile wireless receiving forwarding terminal and is the wide input voltage range Switching Power Supply.
4. substation transformer degree of unbalancedness automated watch-keeping facility according to claim 1 is characterized in that: described dot data gathers the wireless transmit terminal and compiles wireless receiving forwarding terminal with data and all also include real time clock circuit and watchdog circuit module.
CN 201220235041 2012-05-22 2012-05-22 Distribution transformer unbalance degree automatic monitoring device Expired - Fee Related CN202758007U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220235041 CN202758007U (en) 2012-05-22 2012-05-22 Distribution transformer unbalance degree automatic monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220235041 CN202758007U (en) 2012-05-22 2012-05-22 Distribution transformer unbalance degree automatic monitoring device

Publications (1)

Publication Number Publication Date
CN202758007U true CN202758007U (en) 2013-02-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220235041 Expired - Fee Related CN202758007U (en) 2012-05-22 2012-05-22 Distribution transformer unbalance degree automatic monitoring device

Country Status (1)

Country Link
CN (1) CN202758007U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103400483A (en) * 2013-06-28 2013-11-20 国家电网公司 Data acquisition system for measurement of direct-current electric field

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103400483A (en) * 2013-06-28 2013-11-20 国家电网公司 Data acquisition system for measurement of direct-current electric field
CN103400483B (en) * 2013-06-28 2016-08-10 国家电网公司 A kind of data acquisition system for measurement of direct-current electric field

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130227

Termination date: 20180522

CF01 Termination of patent right due to non-payment of annual fee