CN103531340A - Intelligent voltage transformer with temperature monitoring function - Google Patents
Intelligent voltage transformer with temperature monitoring function Download PDFInfo
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- CN103531340A CN103531340A CN201310420790.4A CN201310420790A CN103531340A CN 103531340 A CN103531340 A CN 103531340A CN 201310420790 A CN201310420790 A CN 201310420790A CN 103531340 A CN103531340 A CN 103531340A
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- voltage transformer
- iron core
- intelligent
- temperature
- monitoring function
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Abstract
The invention provides an intelligent voltage transformer with the temperature monitoring function. A voltage transformer primary coil and a voltage transformer iron core are wrapped by a voltage transformer pouring body. The intelligent voltage transformer with the temperature monitoring function is characterized in that a temperature monitoring probe is additionally arranged at the core column position where the voltage transformer primary coil is coupled with the voltage transformer iron core, the temperature is led out by a temperature signal leading-out terminal, and therefore real-time monitoring is conducted on the heating of the iron core. According to the intelligent voltage transformer with the temperature monitoring function, detection is conducted on the heating situation of the voltage transformer iron core, the temperature situation of the voltage transformer during operation can be effectively detected, and therefore the purpose of the intelligent control of the intelligent voltage transformer is achieved.
Description
Technical field
The present invention relates to the voltage transformer that conduct metering that electric power system used, measurement, monitoring, control etc. are used, relate in particular to a kind of intelligent voltage instrument transformer with temp monitoring function, belong to electrical equipment technical field.
Background technology
At present, voltage transformer is when operation, because the uncertain factor in electrical network tends to cause the fault of voltage transformer as overvoltage, single-phase earthing, resonance, secondary load overload etc., simultaneously aspect the manufacturing, because the technological level of manufacturer is limited, often also there will be imperfect earth, insulation breakdown, interlayer electric discharge etc., these are all the key factors that has a strong impact on the normal operation of voltage transformer.Therefore cause operating voltage transformer failure rate always high, account for every year 10% left and right of electric elements failure rate, so solve the focus that the safe operation problem of voltage transformer becomes a lot of technology units and scientific research institution.
The patent No. is 201310034365.1 patent of invention " intelligent voltage instrument transformer ", a kind of intelligent voltage instrument transformer is disclosed, by signalization detecting unit, signal processing unit, performance element in instrument transformer, when detecting unit detects short-circuit signal, performance element is cutting-off of short-circuit source immediately, guarantees that instrument transformer is not damaged, when short trouble is got rid of, detecting unit confirms that performance element is release immediately not under short-circuit condition, recovers instrument transformer normal operation.Yet this intelligent voltage instrument transformer only can solve the problem that short trouble brings, and but cannot solve the problem of other faults.
In view of this, be necessary to provide a kind of intelligent voltage instrument transformer with temp monitoring function, to address the above problem.
Summary of the invention
The object of the invention is: the technical problem existing for solving known technology, a kind of intelligent voltage instrument transformer with temp monitoring function is provided, by setting up device for monitoring temperature at iron core place, can effectively detect the voltage transformer temperature regime in when operation, thereby realize the object of its Based Intelligent Control.
The technical solution adopted in the present invention is: a kind of intelligent voltage instrument transformer with temp monitoring function, and described voltage transformer primary winding and iron core of voltage transformer are wrapped up by voltage transformer pour mass; It is characterized in that, at the stem stem position of voltage transformer primary winding and iron core of voltage transformer coupling, reload temperature monitoring probe, then draws through temperature signal leading-out terminal, and to iron core, heating is monitored in real time thus.
The invention has the beneficial effects as follows: by the heating situation to iron core of voltage transformer, detect, according to the actual conditions of its heating, voltage transformer primary side mains switch is carried out to Based Intelligent Control, thereby reduce the feature of electrical equipment malfunction, avoided burning of part electric equipment, ensure the safe operation of electrical network, thereby reduced the generation of electric accident; And analyze by the temperature curve of voltage transformer, can help the rapid looking up the fault reason of user, for the safe operation of electric equipment provides safety guarantee, thereby reached the object of Based Intelligent Control.
Accompanying drawing explanation
Fig. 1 is the voltage transformer structural representation of prior art.
Fig. 2 is intelligent voltage instrument transformer structural representation of the present invention.
Embodiment
In order to understand better the present invention, below in conjunction with embodiment, further illustrate content of the present invention, but content of the present invention is not only confined to the following examples.Those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values are equally within the listed claims limited range of the application.
Symbol description in accompanying drawing: 1, voltage transformer primary winding; 2, iron core of voltage transformer; 3, voltage transformer pour mass; 4, secondary outlet terminal; 5, monitoring temperature probe; 6, temperature signal leading-out terminal.
Fig. 1 is the voltage transformer structural representation of prior art, and its voltage transformer primary winding 1 is wrapped up by voltage transformer pour mass 3 with iron core of voltage transformer 2; And the main material of voltage transformer pour mass is mixture of epoxy resins, but this mixture of epoxy resins is hot non-conductor, so heat transfer rate is slower.And according to requirement in the 6.3rd rated voltage standard value in GB1207-2006, in system with non effectively earth ed neutral, relatively it is under 1.9 times of rated voltage factors, allow the running time of 30S, therefore in 30S, heat is to be difficult to transmit out by pour mass, during this can there is overload in iron core under overvoltage, if iron core quality is better and manufacturing process control is proper, voltage transformer can pass through the overvoltage in short-term of 30S; When iron core quality or production technology defect slightly, will cause iron core heating serious, and this heating is difficult to spread out of, and then is just easy to produce the explosion phenomenon causing because of heat accumulation.At overvoltage resonance, secondary load overload etc., in particular cases also can there is this fault equally.
The present invention is in order to address this problem, according to voltage transformer, operating heating is gathered situation and is carried out thermal field analysis, invention has designed this structure of Fig. 2, it is characterized in that the stem stem position with iron core of voltage transformer 2 couplings at voltage transformer primary winding 1, reload temperature monitoring probe 5, then through temperature signal leading-out terminal 6, draw, therefore can monitor in real time iron core heating, thereby accomplish to excise fast voltage transformer upper end power supply, reach the Based Intelligent Control that reduces electrical equipment malfunction.By this invention, internal temperature state when user can detect voltage transformer operation at an easy rate, and can store and record the operating temperature of voltage transformer; Not only can find that iron core of voltage transformer temperature sharply changes or temperaturing lifting abnormality and electrical energy parameter variation are studied; and can transfer of data; from the long-range primary side power supply to voltage transformer, excise or overhaul, thereby secondary control loop and voltage transformer are protected.Secondly can be after breaking down according to voltage transformer temperature curve, the energy monitor data during to fault is analyzed, to help the rapid looking up the fault reason of user, for the safe operation of electric equipment provides safety guarantee, thereby reached the object of Based Intelligent Control.
These are only embodiments of the invention, be not limited to the present invention, therefore, within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (1)
1. with an intelligent voltage instrument transformer for temp monitoring function, described voltage transformer primary winding (1) is wrapped up by voltage transformer pour mass (3) with iron core of voltage transformer (2); It is characterized in that, the stem stem position at voltage transformer primary winding (1) with iron core of voltage transformer (2) coupling, reload temperature monitoring probe (5), then draws through temperature signal leading-out terminal (6), and to iron core, heating is monitored in real time thus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420790.4A CN103531340A (en) | 2013-09-16 | 2013-09-16 | Intelligent voltage transformer with temperature monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310420790.4A CN103531340A (en) | 2013-09-16 | 2013-09-16 | Intelligent voltage transformer with temperature monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103531340A true CN103531340A (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310420790.4A Pending CN103531340A (en) | 2013-09-16 | 2013-09-16 | Intelligent voltage transformer with temperature monitoring function |
Country Status (1)
| Country | Link |
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| CN (1) | CN103531340A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158721A (en) * | 2015-07-21 | 2015-12-16 | 珠海许继电气有限公司 | Voltage transformer temperature online monitoring device and method |
| CN105513782A (en) * | 2015-11-16 | 2016-04-20 | 任红霞 | Intelligent inflatable voltage transformer |
| CN111948480A (en) * | 2020-08-17 | 2020-11-17 | 国网四川省电力公司成都供电公司 | GIS equivalent model and PT temperature characteristic and discharge map research platform based on same |
-
2013
- 2013-09-16 CN CN201310420790.4A patent/CN103531340A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158721A (en) * | 2015-07-21 | 2015-12-16 | 珠海许继电气有限公司 | Voltage transformer temperature online monitoring device and method |
| CN105158721B (en) * | 2015-07-21 | 2018-01-02 | 珠海许继电气有限公司 | A kind of voltage transformer temperature on-line monitoring device and method |
| CN105513782A (en) * | 2015-11-16 | 2016-04-20 | 任红霞 | Intelligent inflatable voltage transformer |
| CN111948480A (en) * | 2020-08-17 | 2020-11-17 | 国网四川省电力公司成都供电公司 | GIS equivalent model and PT temperature characteristic and discharge map research platform based on same |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |