CN104180854A - Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station - Google Patents
Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station Download PDFInfo
- Publication number
- CN104180854A CN104180854A CN201410450909.7A CN201410450909A CN104180854A CN 104180854 A CN104180854 A CN 104180854A CN 201410450909 A CN201410450909 A CN 201410450909A CN 104180854 A CN104180854 A CN 104180854A
- Authority
- CN
- China
- Prior art keywords
- module
- voltage
- cable
- transformer
- central processing
- 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.)
- Pending
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a safety monitoring device used for monitoring a high-voltage conveying cable on a hydropower station. The safety monitoring device comprises a CPU module, a data collecting module, a single-chip microcomputer, a display module, an alarm output module, an AC/DC conversion circuit module, a voltage stabilizing circuit module, a transformer, a temperature collector and a current collector. A standby power source is connected to the transformer, the inner portion of a metal sheath for collecting the temperature on the high-voltage cable is of a double-layer hollow structure, and an outer-side hollow structure is arranged in the metal sheath. The hollow structure of the metal sheath can reduce the damage degree of the metal sheath, materials are saved, energy consumption and cost are reduced, stable supply voltage is provided to the whole monitoring device through the transformer connected with the high-voltage cable and the voltage stabilizing circuit, an extra power source does not need to be provided, therefore, energy consumption is reduced and the energy cost is also reduced.
Description
Technical field
The present invention relates to a kind of cable monitoring device, specifically a kind of for monitoring the safety monitoring assembly of high-pressure delivery cable on power station.
Background technology
Along with the high speed development of national economy, quantity and installed capacity that China's total installed capacity of hydropower total volume has also obtained very large development, especially large hydropower station obtained unprecedented development especially in recent years, and outlet line capacity and the electric pressure in power station improve constantly.High-tension cable is as the visual plant of power station electric weight output, its security is also subject to very big attention, high voltage bus is in the time that the contact of running overload or high-voltage switch gear is bad, because contact resistance becomes large, produce fever phenomenon in the out-of-date meeting of load current flow, this fever phenomenon causes that insulation ag(e)ing even punctures, thereby causes short circuit, form major accident, cause heavy economic losses.In order to ensure the safe operation of high-tension cable, core conductor temperature, connector temperature, protective metal shell temperature and protective metal shell insulating monitoring to high-tension cable are most important.
In the electric power system that adopts power cable to transmit electricity, according to the AUTHORITATIVE DATA analysis of power industry, the fault of the switch cubicle 90% of all-inflation and all-insulation is the problem going out due to line cable junction, that field staff is owing to not installing in strict accordance with the working specification of cable mostly, cause installation place contact resistance to increase, make cable termination produce insulation ag(e)ing, destroy its insulating capacity, thereby cause the accident of singlephase earth fault or phase fault.Therefore detect and monitor the variation of electric current in the temperature of cable splice and high-tension cable, find in advance and get rid of hot stall hidden danger, the safe and reliable operation of electric system is had very important significance.
Existing power station high-tension cable monitoring device complex structure, makes monitoring and processing speed slow, can not find in time and process extremely, causes high-tension cable to occur certain damage, causes larger economic loss and personnel's accident when serious; And monitoring device is in when operation, all need the power supply that provides independent, cause the very big loss of the energy.Therefore just must improve existing high-tension cable monitoring device, make its measuring speed more accurate faster, and can also reduce monitoring cost.
Summary of the invention
The object of the present invention is to provide a kind of flow process simple, monitor timely and energy-conservation for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, to solve the problem proposing in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
A kind of for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, comprise CPU central processing module, data acquisition module, single-chip microcomputer, display module, alarm output module, AC/DC change-over circuit module, voltage stabilizing circuit module, transformer, Temperature sampler and current collector, described Temperature sampler and current collector are arranged on the protective metal shell of three-phase high-voltage cable adapter to be measured, gather respectively the temperature on protective metal shell electric current and three-phase high-voltage cable, and signal is passed to data acquisition module carry out data preparation; Described data acquisition module passes to single-chip microcomputer by the data of putting in order and processes; Corresponding current and voltage signals is converted into digital signal by described single-chip microcomputer; Described single-chip microcomputer by wireless network by the control of CPU central processing module and to CPU central processing module transmission of digital signals; CPU central processing module control alarm output module output alarm signal and with remote monitoring system communication, CPU central processing module shows the signal results of processing by display module; Described transformer is directly connected high pressure converted with high-tension cable be low pressure; Described voltage stabilizing circuit module is connected on transformer, and the low-voltage after transformer transformation is changed into stable supply voltage, and provides stable supply voltage for AC/DC change-over circuit module, data acquisition module and CPU central processing module; Described AC/DC change-over circuit module provides stable supply voltage for Temperature sampler and current collector.
As the further scheme of the present invention: on described collection high-voltage cable, the protective metal shell of temperature inside is double-layer hollow structure, and the hollow-core construction in outside is arranged in protective metal shell.
As the further scheme of the present invention: also connect standby power supply on described transformer.
Compared with prior art, the invention has the beneficial effects as follows: apparatus of the present invention structure and flow process are simple, the abnormal conditions of Monitoring High Voltage Cable fast, reduce operations staff's labour intensity, and the hollow-core construction of protective metal shell can store the heat in measuring process, maintain the temperature of protective metal shell and high-tension cable surface of contact in certain scope, reduce the damaged condition of protective metal shell, save material, reduce energy consumption and cost; In the present invention, directly by the transformer that is connected with high-tension cable and the processing of mu balanced circuit, for whole monitoring device provides stable power supply voltage signal, provide extra power supply without the CPU central processing unit for monitoring device and pulpit, therefore reduce the consumption of the energy, reduced the cost of the energy.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the present invention.
Fig. 2 is the collection position schematic diagram of protective metal shell in the present invention.
Fig. 3 is the structural representation of protective metal shell in the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1～3, in the embodiment of the present invention, a kind of for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, comprise CPU central processing module, data acquisition module, single-chip microcomputer, display module, alarm output module, AC/DC change-over circuit module, voltage stabilizing circuit module, transformer, Temperature sampler and current collector, the protective metal shell inside that gathers temperature on high-voltage cable is double-layer hollow structure, the hollow-core construction in outside is arranged in protective metal shell, in the hollow-core construction of protective metal shell, be filled with refrigerating fulid, in the process of measurement high-tension cable, heat in measuring process can be stored, maintain the temperature of protective metal shell and high-tension cable surface of contact in certain scope, reduce the damaged condition of protective metal shell, save material, reduce energy consumption and cost.
Temperature sampler and current collector are arranged on the protective metal shell of three-phase high-voltage cable adapter to be measured, gather respectively the temperature signal on protective metal shell current signal and three-phase high-voltage cable, and signal is passed to data acquisition module carry out data preparation; Data acquisition module passes to single-chip microcomputer by the data of putting in order and processes, and corresponding current and voltage signals is converted into digital signal by single-chip microcomputer.
Single-chip microcomputer by wireless network by the control of CPU central processing module and to CPU central processing module transmission of digital signals, CPU central processing module control alarm output module output alarm signal and with remote monitoring system communication, CPU central processing module shows the signal results of processing by display module, the personnel of being convenient to pulpit monitor timely; Transformer is directly connected with high-tension cable, is low pressure by stage variable pressure by high pressure converted; Voltage stabilizing circuit module is connected on transformer, and the low-voltage after transformer transformation is changed into stable supply voltage, and provides stable supply voltage for AC/DC change-over circuit module, data acquisition module and CPU central processing module; AC/DC change-over circuit module provides stable supply voltage for Temperature sampler and current collector.
On transformer, also connect standby power supply, in the time that whole circuit occurs compared with major break down, device just starts standby power supply automatically, for whole monitoring device provides voltage source, ensures the normal operation of monitoring device.
In the present invention, directly by the transformer that is connected with high-tension cable and the processing of mu balanced circuit, for whole monitoring device provides stable power supply voltage signal, provide extra power supply without the CPU central processing unit for monitoring device and pulpit, therefore reduce the consumption of the energy, reduced the cost of the energy.
Claims (3)
1. one kind for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, comprise CPU central processing module, data acquisition module, single-chip microcomputer, display module, alarm output module, AC/DC change-over circuit module, voltage stabilizing circuit module, transformer, Temperature sampler and current collector, it is characterized in that, described Temperature sampler and current collector are arranged on the protective metal shell of three-phase high-voltage cable adapter to be measured, gather respectively the temperature on protective metal shell electric current and three-phase high-voltage cable, and signal is passed to data acquisition module carry out data preparation, described data acquisition module passes to single-chip microcomputer by the data of putting in order and processes, corresponding current and voltage signals is converted into digital signal by described single-chip microcomputer, described single-chip microcomputer by wireless network by the control of CPU central processing module and to CPU central processing module transmission of digital signals, CPU central processing module control alarm output module output alarm signal and with remote monitoring system communication, CPU central processing module shows the signal results of processing by display module, described transformer is directly connected high pressure converted with high-tension cable be low pressure, described voltage stabilizing circuit module is connected on transformer, and the low-voltage after transformer transformation is changed into stable supply voltage, and provides stable supply voltage for AC/DC change-over circuit module, data acquisition module and CPU central processing module, described AC/DC change-over circuit module provides stable supply voltage for Temperature sampler and current collector.
2. according to claim 1 for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, it is characterized in that, on described collection high-voltage cable, the protective metal shell of temperature inside is double-layer hollow structure, and the hollow-core construction in outside is arranged in protective metal shell.
3. according to claim 1ly it is characterized in that for monitoring the safety monitoring assembly of high-pressure delivery cable on power station, on described transformer, also connect standby power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450909.7A CN104180854A (en) | 2014-09-05 | 2014-09-05 | Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410450909.7A CN104180854A (en) | 2014-09-05 | 2014-09-05 | Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104180854A true CN104180854A (en) | 2014-12-03 |
Family
ID=51962084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410450909.7A Pending CN104180854A (en) | 2014-09-05 | 2014-09-05 | Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104180854A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331867A (en) * | 1997-11-28 | 1999-06-02 | Asea Brown Boveri | Power cable termination |
| JP2002171656A (en) * | 2000-11-30 | 2002-06-14 | Hitachi Cable Ltd | Power cable insulated connection |
| CN2837993Y (en) * | 2005-11-08 | 2006-11-15 | 无锡市沪安电线电缆有限公司 | High voltage flame resistant cable |
| CN101464488A (en) * | 2009-01-16 | 2009-06-24 | 上海慧东电气设备有限公司 | On-line monitoring system for high voltage cable |
| CN102411119A (en) * | 2011-11-21 | 2012-04-11 | 合肥工业大学 | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station |
| CN102749150A (en) * | 2011-04-20 | 2012-10-24 | 常州帕斯菲克自动化技术有限公司 | Cable head temperature online monitoring device |
| CN204085567U (en) * | 2014-09-05 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | A kind of safety monitoring assembly of monitoring high-pressure delivery cable on power station |
-
2014
- 2014-09-05 CN CN201410450909.7A patent/CN104180854A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2331867A (en) * | 1997-11-28 | 1999-06-02 | Asea Brown Boveri | Power cable termination |
| JP2002171656A (en) * | 2000-11-30 | 2002-06-14 | Hitachi Cable Ltd | Power cable insulated connection |
| CN2837993Y (en) * | 2005-11-08 | 2006-11-15 | 无锡市沪安电线电缆有限公司 | High voltage flame resistant cable |
| CN101464488A (en) * | 2009-01-16 | 2009-06-24 | 上海慧东电气设备有限公司 | On-line monitoring system for high voltage cable |
| CN102749150A (en) * | 2011-04-20 | 2012-10-24 | 常州帕斯菲克自动化技术有限公司 | Cable head temperature online monitoring device |
| CN102411119A (en) * | 2011-11-21 | 2012-04-11 | 合肥工业大学 | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station |
| CN204085567U (en) * | 2014-09-05 | 2015-01-07 | 广东梅雁吉祥水电股份有限公司 | A kind of safety monitoring assembly of monitoring high-pressure delivery cable on power station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207352393U (en) | A kind of fault detector | |
| CN103675671B (en) | A high-voltage switchgear temperature rise test system | |
| CN104697653A (en) | Temperature pre-warning system for key equipment of ultrahigh-pressure power distributing station based on web | |
| CN203132720U (en) | A temperature rise online monitoring device of a high-voltage device cable connector | |
| CN104319895B (en) | A kind of Intelligent power distribution path monitoring terminal | |
| CN104515623A (en) | Watch strap type passive wireless online temperature measuring device and monitoring system thereof | |
| CN204666767U (en) | Transmission line malfunction on-line detecting system | |
| CN103808430A (en) | High-voltage device cable head temperature online monitoring device | |
| CN203232113U (en) | A comprehensive automatic substation temperature detection system | |
| CN206514883U (en) | A kind of Multifunctional suspension type insulator on-line monitoring system | |
| CN205484648U (en) | Distribution lines on -line monitoring device | |
| CN204085567U (en) | A kind of safety monitoring assembly of monitoring high-pressure delivery cable on power station | |
| CN201993434U (en) | System for quickly positioning distribution network faults based on wireless sensor network | |
| CN105242168A (en) | Split type leakage current acquisition system | |
| CN204612833U (en) | Based on the distributed low-voltage electrical tie point In-Line Temperature Measure System of ZigBee technology | |
| CN104180854A (en) | Safety monitoring device used for monitoring high-voltage conveying cable on hydropower station | |
| CN202041612U (en) | Automatic locating device for earth faults of electricity transmission lines | |
| CN104501976A (en) | Passive wireless temperature acquisition system | |
| CN202393866U (en) | Hydropower station 330kV high voltage cable temperature and insulating state intelligent monitoring device | |
| Xianbo et al. | Design of on-line temperature monitoring system for power cable joints based on supercapacitor | |
| CN105223446A (en) | Lightning arrester remote online monitoring device | |
| CN211603539U (en) | 10kV separated time line loss metering device that high pressure was directly got can | |
| CN103698043A (en) | Wireless temperature measurement system in transformer substation | |
| CN204359460U (en) | A kind of Optical Fiber composite overhead Ground Wire DC ice melting temperature strain monitoring device | |
| CN203385486U (en) | Online temperature monitoring device for grounding wires of sheath of high-voltage single-core cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |