CN205157649U - Monitoring system for seal on insulating tubular busbar - Google Patents

Monitoring system for seal on insulating tubular busbar Download PDF

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Publication number
CN205157649U
CN205157649U CN201520840112.8U CN201520840112U CN205157649U CN 205157649 U CN205157649 U CN 205157649U CN 201520840112 U CN201520840112 U CN 201520840112U CN 205157649 U CN205157649 U CN 205157649U
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China
Prior art keywords
signal
module
monitoring system
bus
generating line
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Active
Application number
CN201520840112.8U
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Chinese (zh)
Inventor
刘旭东
刘振虎
朱小军
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.)
Co Ltd Of Zhenjiang East China Electric Power Equipment Factory
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Co Ltd Of Zhenjiang East China Electric Power Equipment Factory
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Priority to CN201520840112.8U priority Critical patent/CN205157649U/en
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Abstract

The utility model discloses a monitoring system for seal on insulating tubular busbar, this system include a detection terminal, and this detection terminal can detect the generating line to send a signal to a zigBee coordinator, this coordinator can be sent a signal to an analysis request module or an acceptance analysis request module's signal. The utility model provides a monitoring system for seal on insulating tubular busbar can help the technical staff promptly and accurately to confirm insulating impaired generating line through the megohmmeter and segment, can very reduce and inspect and the maintenance work volume before maintenance and unit start -up, each generating line sectionalised resistance isoparametric of automatic monitoring on line after closed isolated bus puts into operation, the real -time insulating situation of sealing the isolated bus of mastering of messenger's equipment operation personnel to in time take measures, avoid generating line operational failure's emergence, improve generating line operational safety and reliability.

Description

Be applied to the monitoring system on closed insulating tube type busbar
Technical field
The utility model relates to a kind of monitoring system be applied on closed insulating tube type busbar.
Background technology
Close isolated bus due to have compact conformation, institute take up space little, easy for installation, security is high, the series of advantages of safe operation can be continued and extensively adopt in complex environment.But the impact that the insulation caused under the recessive insulation damages caused owing to easily colliding with because of carelessness when closed isolated bus is installed and long-term rugged surroundings such as slowly to corrode at the factor easily causes the reduction of bus insulating property, for improving bus overall insulation resistance and withstand voltage level, need change fault segmentation, but because current configuration device also accurately cannot judge that concrete fault segmentation is that section or which section, because all bus sections have the possibility of insulation damages, rule of thumb investigate key area often, repeatedly test, some is even directly dismantled and detects the insulating property of all insulation tube mother partitions one by one, repair and maintenance difficulty and workload large.In the insulation decline problem that bus run duration occurs; although generally can not hard stop be caused; but because technician cannot know particular problem place; also just there is the hidden danger in safety; serious meeting causes the faults such as single-phase earthing, generally can only wait between power plant or transformer station's overhaul time and detect.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of monitoring system be applied on closed insulating tube type busbar, greatly reduces the working time, saves maintenance cost.
A kind of monitoring system be applied on closed insulating tube type busbar, this system comprises a sense terminals, this sense terminals can detect bus, and sending a signal to a ZigBee telegon, this telegon can send a signal to an analysis and consult module or accept the signal of described analysis and consult module.
Preferably, also comprise one by the gsm module of serial ports and described analysis and consult model calling, signal can be sent to this gsm module by described analysis and consult module.
Preferably; described sense terminals comprises a Zero flux leakage current sensor, an over-voltage over-current protection module, a signal amplification filtering module and a single-chip microcomputer, and described current sensor can detect described bus and current signal is sent to successively over-voltage over-current protection module, signal amplification filtering module and single-chip microcomputer.
Preferably, described bus includes one or more snippets conductor and joins end to end and the disjunct bus section of outer surface shield ground connection, and above-mentioned each segmentation all has ground wire to draw ground connection.
The utility model proposes a kind of monitoring system be applied on closed insulating tube type busbar, can before maintenance and unit starting, technician can be helped promptly and accurately to determine the impaired bus section that insulate by megohmmeter, greatly can reduce inspection and maintenance workload; Can the parameter such as each bus sectional lized resistance of online auto monitoring after closed isolated bus puts into operation, the equipment operations staff of making grasps the insulation status of closed isolated bus in real time, to take measures in time, avoid the generation of bus operation troubles, improve bus safety in operation and reliability.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Fig. 1 is the bus sectional lized structural drawing disclosed in the utility model embodiment;
Fig. 2 is the system chart being applied to the monitoring system on closed insulating tube type busbar disclosed in the utility model embodiment.
Numeral in figure:
1, ground wire 2, ZigBee telegon 3, analysis and consult module 4, gsm module
5, current sensor 6, over-voltage over-current protection module 7, signal amplification filtering module
8, single-chip microcomputer.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As shown in Fig. 1 to 2, a kind of monitoring system be applied on closed insulating tube type busbar, this system comprises a sense terminals, this sense terminals can detect bus, and sending a signal to a ZigBee telegon 2, this telegon 2 can send a signal to an analysis and consult module 3 or accept the signal of described analysis and consult module 3.
Also comprise a gsm module 4 be connected with described analysis and consult module 3 by serial ports, signal can be sent to this gsm module 4 by described analysis and consult module 3.
Described sense terminals comprises Zero flux leakage current sensor 5, over-voltage over-current protection module 6, signal amplification filtering module 7 and a single-chip microcomputer 8, and described current sensor 5 can detect described bus and current signal is sent to successively over-voltage over-current protection module 6, signal amplification filtering module 7 and single-chip microcomputer 8.
Described bus includes one or more snippets conductor and joins end to end and the disjunct bus section of outer surface shield ground connection, and above-mentioned each segmentation all has ground wire 1 to draw ground connection.
Shown in Fig. 1 and 2, the bus in the utility model, includes several sections or tens of sections of conductors join end to end and the disjunct bus section of outer surface shield ground connection.Bus entirety adopts the form of graded insulation, and namely each bus section and intersegmental connection shielding construction all have ground wire 1 to draw ground connection respectively.
Described sense terminals terminal has following technical characterstic:
1) resistance of insulator can be monitored under megohmmeter test and AC power frequency voltage two kinds of patterns;
2) current sensor 5 adopts Zero flux technology, multiple electromagnetic shielding measure, by force anti-interference, can in safe operation under complex electromagnetic environment;
3) adopt signal amplification filtering module 7, anti-interference is good, and leakage current measurement precision is up to 10uA, and corresponding insulation resistance value reaches 2000M Ω (direct current), more than 2500M Ω (interchange) respectively.
The communication that system adopts is 2.4GZigBee.Because insulator monitoring terminal in system is apart comparatively near, quantity is more and be in high pressure conditions, is therefore not suitable for adopting wired communication modes.ZigBee communication mode has that networking difficulty is simple, operation maintenance is easy, communication speed is high, good reliability, the series of advantages such as to monitor in real time.
ZigBee telegon 2 is responsible for all Data Collections and uploads to host computer, and analysis and consult module 3 is responsible for optimum configurations, and data are preserved, and show and judge whether overload alarm in real time.GSM network is at present based on the most ripe, the most perfect in the mobile communication system of tdma, that coverage rate is the widest, user is maximum a kind of mobile communications network.Native system adopts serial ports to be connected with gsm module 4, and use AT order to be transmited and receive telegrams alarming information according to short message way, and client only need add specified mobile phone number in system parameter setting, just can receive warning message in the very first time.
As illustrated in fig. 1 and 2, during enforcement, sense terminals is connected on the ground wire 1 of closed isolated bus, and adopts the mode of wireless connections to upload the data to Control Room, field staff only needs hand-held display terminal, just can check each bus sectional lized state in optional position at the scene.
When the test procedure of megohmmeter is without any change, after applying voltage, within two seconds, result will be presented on screen, and precision can reach more than 2000M Ω.The upper computer software of hommization, display the whole series of equal proportion can close the structural drawing of isolated bus, and be marked accurately the position that insulation declines.At closed isolated bus run duration, only need select the interchange on-line monitoring function of supervisory system, just can the dielectric strength of each segmentation of Real-Time Monitoring, when certain segmentation occurs that dielectric strength is inadequate, send warning message to operations staff, avoid the generation of electric power accident, and all historical datas all can be inquired about.
Above-described is only the preferred implementation of a kind of monitoring system be applied on closed insulating tube type busbar provided by the utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.

Claims (4)

1. one kind is applied to the monitoring system on closed insulating tube type busbar, it is characterized in that, this system comprises a sense terminals, this sense terminals can detect bus, and sending a signal to a ZigBee telegon, this telegon can send a signal to an analysis and consult module or accept the signal of described analysis and consult module.
2. the monitoring system be applied on closed insulating tube type busbar according to claim 1, is characterized in that, also comprise one by the gsm module of serial ports and described analysis and consult model calling, signal can be sent to this gsm module by described analysis and consult module.
3. the monitoring system be applied on closed insulating tube type busbar according to claim 1; it is characterized in that; described sense terminals comprises a Zero flux leakage current sensor, an over-voltage over-current protection module, a signal amplification filtering module and a single-chip microcomputer, and described current sensor can detect described bus and current signal is sent to successively over-voltage over-current protection module, signal amplification filtering module and single-chip microcomputer.
4. the monitoring system be applied on closed insulating tube type busbar according to claim 1, it is characterized in that, described bus includes one or more snippets conductor and joins end to end and the disjunct bus section of outer surface shield ground connection, and above-mentioned each segmentation all has ground wire to draw ground connection.
CN201520840112.8U 2015-10-27 2015-10-27 Monitoring system for seal on insulating tubular busbar Active CN205157649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520840112.8U CN205157649U (en) 2015-10-27 2015-10-27 Monitoring system for seal on insulating tubular busbar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520840112.8U CN205157649U (en) 2015-10-27 2015-10-27 Monitoring system for seal on insulating tubular busbar

Publications (1)

Publication Number Publication Date
CN205157649U true CN205157649U (en) 2016-04-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106443375A (en) * 2016-09-20 2017-02-22 国网天津市电力公司 Monitoring system method based on closed tubular bus bar
CN108761293A (en) * 2018-08-09 2018-11-06 安徽亚辉电气自动化有限公司 A kind of bus insulation condition checkout gear
CN110412418A (en) * 2019-07-22 2019-11-05 国网湖北省电力有限公司电力科学研究院 Insulating tube type busbar insulation diagnosis and localization method based on earth current measurement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106443375A (en) * 2016-09-20 2017-02-22 国网天津市电力公司 Monitoring system method based on closed tubular bus bar
CN108761293A (en) * 2018-08-09 2018-11-06 安徽亚辉电气自动化有限公司 A kind of bus insulation condition checkout gear
CN108761293B (en) * 2018-08-09 2021-01-05 安徽亚辉电气自动化有限公司 Bus insulation state detection device
CN110412418A (en) * 2019-07-22 2019-11-05 国网湖北省电力有限公司电力科学研究院 Insulating tube type busbar insulation diagnosis and localization method based on earth current measurement

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