CN203688080U - Substation high-voltage switch cabinet temperature online monitoring device - Google Patents

Substation high-voltage switch cabinet temperature online monitoring device Download PDF

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Publication number
CN203688080U
CN203688080U CN201320796623.5U CN201320796623U CN203688080U CN 203688080 U CN203688080 U CN 203688080U CN 201320796623 U CN201320796623 U CN 201320796623U CN 203688080 U CN203688080 U CN 203688080U
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CN
China
Prior art keywords
switch cabinet
monitoring
temperature
monitoring unit
unit
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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 - Lifetime
Application number
CN201320796623.5U
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Chinese (zh)
Inventor
谭艳
余东
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.)
State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
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State Grid Corp of China SGCC
State Grid Sichuan Electric Power Co Ltd
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Priority to CN201320796623.5U priority Critical patent/CN203688080U/en
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Publication of CN203688080U publication Critical patent/CN203688080U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge

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  • Arrangements For Transmission Of Measured Signals (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

A substation high-voltage switch cabinet temperature online monitoring device relates to a field of power plant high voltage electrical equipment state overhaul technology including a high voltage switch cabinet, a monitoring unit, a receiving element, a wireless repeater, a monitoring host and a display. The monitoring unit consists of a heat detector, an induction electric box, a wireless transmission unit, and the receiving element includes a receiving antenna, a GFSK modulation, a PCL; the heat detector is connected with the wireless transmission unit, the wireless transmission unit is connected with the induction electric box, and the wireless repeater is connected with the monitoring unit in the way of wireless communication; RS485 is used for communication connection between the receiving antenna and a monitoring host; the monitoring unit is fixed on a connecting copper bar surface of a fixed contact inside the high-voltage switch cabinet, and the induction electric box gains the power via inducing the current across the switch cabinet copper bar and provides the power for the wireless transmission unit. The problems of difficulty in gaining the data in the high-voltage switch cabinet temperature online monitor and low accuracy are solved.

Description

Transformer station's high-tension switch cabinet temperature on-line monitoring device
Technical field
The utility model relates to power station inner high voltage Electrical Equipment Maintenance Based on State technical field, especially a kind of transformer station high-tension switch cabinet temperature on-line monitoring device.
Background technology
The high-tension switch cabinet of transformer station, capacitor box, in During Process of Long-term Operation, the positions such as the contact of switch and bus connection are because of aging or contact resistance is excessive generates heat, and the temperature of these heating positions cannot be monitored, and finally causes thus accident to occur.In recent years, there are a lot of switch overheat accidents in power plant and transformer station, caused large-area power outage.Heat generating spot is in sealed cabinet, and operating cabinet gate inhibition only opens, and operator on duty cannot find heating defect by normal supervision means.The temperature rise of switch cubicle exceeds standard, and directly affects the safe and stable operation of equipment, and problems of excessive heat is the process of a development, if do not controlled, degree of superheat is aggravation constantly, and performance and equipment life to insulating part has a huge impact.
The technological means that solves at present switch problems of excessive heat is more, and still, adopting on-line temperature monitoring is the important means that ensures high-tension switch cabinet safe operation, and especially carrying out the online real time temperature monitoring of contact in high-tension switch cabinet inside has certain difficulty.
Utility model content
The purpose of this utility model is to provide a kind of transformer station high-tension switch cabinet temperature on-line monitoring device, to, to accurately location and warning of trouble spot, carrying out in high-tension switch cabinet inside the online real time temperature monitoring of contact.
The technical solution that realizes the utility model object is as follows: a kind of transformer station high-tension switch cabinet temperature on-line monitoring device, comprises high-tension switch cabinet, monitoring unit, receiving element, wireless repeater, monitoring host computer and display; Described monitoring unit is made up of temperature-sensing probe, induction power taking box, wireless transmitting unit, and described receiving element comprises receiving antenna, GFSK modulation, PCL; Described temperature-sensing probe is connected with wireless transmitting unit, and wireless transmitting unit is connected with induction power taking box, between wireless repeater and monitoring unit, adopts communication to connect; Between the receiving antenna and monitoring host computer of described receiving element, adopt RS485 communication connection; The connection copper bar surface of static contact in what described monitoring unit was smooth be fixed on high-tension switch cabinet, its induction power taking box produces induction to the electric current passing through on switch cabinet copper bar and obtains electric energy, powers to wireless transmitting unit.
Further, described each monitoring unit is furnished with an induction power taking box.
Further, between described temperature-sensing probe and wireless transmitting unit, by connecting by the fine line of fourth high temperature resistant, high pressure, and equipotential is installed.
Further, described in, be arranged at main frame in master-control room and the monitoring host computer of display and be preinstalled with intellectual analysis software.
Further, described receiving element be also provided with programmable logic controller (PLC) PLC and with master-control room in main-machine communication.
Compared with the prior art, the utility model has solved real time on-line monitoring temperature data in high-voltage board to be difficult to obtain, the problem that accuracy is not high; This device had both ensured the reliable long-play of system, can reduce again the work of maintenance and later maintenance, to no matter being to increase monitor temperature point quantity or expanding system function from now on, all easily realized.This device data are accurate, and ectocine is little, and power supply is continual and steady, adopt Siemens technical grade PLC, system performance is stable, reliable, and anti-interference is extremely strong, and through long-play test, the bit error rate is low, data processing is fast, processes and communication seamless link the decay of signal lossless consumption.
Brief description of the drawings
Fig. 1 is apparatus structure block diagram representation described in the utility model.
Fig. 2 is described monitoring cell formation schematic diagram.
Fig. 3 is the utility model device one embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in more detail.It is emphasized that specific embodiment described herein is only in order to explain the utility model, and be not used in the scope that limits the utility model design and claim thereof.
Shown in Fig. 1, Fig. 2, Fig. 3, the utility model device is on-Line Monitor Device, comprises high-tension switch cabinet, monitoring unit 1, receiving element 2, wireless repeater 3, monitoring host computer and display 4.Described monitoring unit 1 is made up of temperature-sensing probe, induction power taking box, wireless transmitting unit; Monitoring unit 1 quantity can arbitrary extension; Adopt different installations can monitor bus, disconnector, mutual inductor etc., therefore each monitoring unit is furnished with an induction power taking box.
Temperature-sensing probe is selected DXJ-CD model specification, adopts technical grade digital-type intelligent temperature-sensitive IC, point-to-point accurate detection, and temperature transition is become electric signal by high precision measuring temperature IC.Between temperature-sensing probe and wireless transmitting unit, by connecting by the fine line of fourth high temperature resistant, high pressure, and equipotential is installed.
Wireless transmitting unit is selected DXJ/GN/JH model specification, adopts GSFK demodulation mode that temperature signal is sent.Induction power taking box is connected with wireless transmitting unit, selects DXJ-POWER model specification, by the power taking on bus of coil-induced mode, and by powering after circuit voltage stabilizing.
Between wireless repeater 3 and monitoring unit 1, adopt communication to connect; Wireless repeater 3 is selected DXJ/ZJ model, at the scene temperature signal reception, compensation is sent to a distant place after amplifying. and described receiving element 2 comprises receiving antenna, GFSK modulation, programmable logic controller (PLC) PCL; Main-machine communication in programmable logic controller (PLC) PLC and master-control room; Between the receiving antenna and main frame of described receiving element 2, adopt RS485 order wire to connect; Receiving element 2 bodies are selected DXJ/GN/JS model, receive temperature digital signal Jin Hang Chu Li ﹑ Fen Xi ﹑ storage or alarm, and can carry out operation setting by external receiving antenna.The connection copper bar surface of static contact in what described monitoring unit was smooth be fixed on high-tension switch cabinet, its induction power taking box is by the power taking on bus of coil-induced mode, and by powering after circuit voltage stabilizing.
The monitoring host computer being arranged in master-control room is preinstalled with intellectual analysis software.Monitoring host computer and analysis software do data processing by Siemens PLC C and calculate, and the intellectual analysis software of prepackage is realized setting to high-voltage electrical equipment service data, preservation, analysis, arrangement, output, warning etc.
Its principle of work process of the utility model device is as follows: monitoring cellular installation is in 10kV high-tension switch cabinet inside, measure the easily position of heating such as moving contact and fixed contact of isolating switch and joint in high-tension switch cabinet, respond to power taking box powers to monitoring unit after switch cabinet busbar is obtained electric energy voltage stabilizing by the mode of induction power taking simultaneously, ensure the monitoring continuous non-stop run in unit, and measured temperature data is sent to the wireless repeater of high-tension switch cabinet outside, compensation by repeater the most at last temperature data is wirelessly transmitted to master-control room receiving element and shows, analyze, storage, process etc.

Claims (3)

1. transformer station's high-tension switch cabinet temperature on-line monitoring device, comprises high-tension switch cabinet, monitoring unit (1), receiving element (2), wireless repeater (3); Monitoring host computer and display (4); Described monitoring unit (1) is made up of temperature-sensing probe, induction power taking box, wireless transmitting unit, and described receiving element (2) comprises receiving antenna, GFSK modulation, programmable logic controller (PLC) PCL; Described temperature-sensing probe is connected with wireless transmitting unit, and wireless transmitting unit is connected with induction power taking box, between wireless repeater (3) and monitoring unit (1), adopts communication to connect; Between the receiving antenna of described receiving element (2) and monitoring host computer (4), adopt RS485 communication connection; It is characterized in that, the connection copper bar surface of static contact in what described monitoring unit (1) was smooth be fixed on high-tension switch cabinet, its induction power taking box produces induction to the electric current passing through on switch cabinet copper bar and obtains electric energy, powers to wireless transmitting unit.
2. transformer station according to claim 1 high-tension switch cabinet temperature on-line monitoring device, is characterized in that, described each monitoring unit (1) is furnished with an induction power taking box.
3. transformer station according to claim 1 high-tension switch cabinet temperature on-line monitoring device, is characterized in that, between described temperature-sensing probe and wireless transmitting unit, by connecting by the fine line of fourth high temperature resistant, high pressure, and equipotential is installed.
CN201320796623.5U 2013-12-03 2013-12-03 Substation high-voltage switch cabinet temperature online monitoring device Expired - Lifetime CN203688080U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320796623.5U CN203688080U (en) 2013-12-03 2013-12-03 Substation high-voltage switch cabinet temperature online monitoring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320796623.5U CN203688080U (en) 2013-12-03 2013-12-03 Substation high-voltage switch cabinet temperature online monitoring device

Publications (1)

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CN203688080U true CN203688080U (en) 2014-07-02

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104237610A (en) * 2014-09-17 2014-12-24 国家电网公司 Passive high-voltage electrification audible and visual alarm
CN104362755A (en) * 2014-11-27 2015-02-18 国网河南省电力公司平顶山供电公司 High-voltage cabinet busbar joint temperature and current monitoring and protecting system
CN104515623A (en) * 2015-01-16 2015-04-15 国家电网公司 Watch strap type passive wireless online temperature measuring device and monitoring system thereof
CN108562849A (en) * 2018-03-07 2018-09-21 Abb瑞士股份有限公司 Self-powered detection device for switchgear

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104237610A (en) * 2014-09-17 2014-12-24 国家电网公司 Passive high-voltage electrification audible and visual alarm
CN104362755A (en) * 2014-11-27 2015-02-18 国网河南省电力公司平顶山供电公司 High-voltage cabinet busbar joint temperature and current monitoring and protecting system
CN104515623A (en) * 2015-01-16 2015-04-15 国家电网公司 Watch strap type passive wireless online temperature measuring device and monitoring system thereof
CN108562849A (en) * 2018-03-07 2018-09-21 Abb瑞士股份有限公司 Self-powered detection device for switchgear

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Granted publication date: 20140702