CN203965057U - A kind of high-voltage parallel capacitor temperature indicating device - Google Patents
A kind of high-voltage parallel capacitor temperature indicating device Download PDFInfo
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- CN203965057U CN203965057U CN201420361606.3U CN201420361606U CN203965057U CN 203965057 U CN203965057 U CN 203965057U CN 201420361606 U CN201420361606 U CN 201420361606U CN 203965057 U CN203965057 U CN 203965057U
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Abstract
A kind of high-voltage parallel capacitor temperature indicating device, comprise and be flat columned copper shell, the sealing of copper shell one end, one end opening, its inner hollow, place, centre in one end of its sealing offers a through hole, outside one side at the copper shell of this through hole is close to the copper base that is provided with a circle, and be socketed with a temperature scale dish on the shell edge of the openend of copper shell, copper base is connected with the temperature sensing assembly in being arranged on copper shell by the through hole of copper shell, this temperature sensing assembly temperature that conduction is come to copper base detects and indicates.The utility model cost is low, suitable a large amount of making is produced configuration and is used, installation, convenient fixing, can meet the explosion-proof needs of substation safety, nonflammable, and the utility model does not need the just field condition of high-voltage parallel capacitor temperature in real time of external power source, has saved the work of operation maintenance at ordinary times, greatly reduces human cost.
Description
Technical field
The utility model relates to a kind of temperature sensing, pick-up unit, relates in particular to a kind of temperature-detecting device that is applied to high-voltage parallel capacitor.
Background technology
At present, often used a kind of high-voltage parallel capacitor in the transformer station of electric system, this high-voltage parallel capacitor has used oil impregnated paper to carry out physical insulation, 90 ℃ the most～95 ℃ of its maximum working temperatures.Yet, in actual application, field worker is found the hottest spot temperature of high-voltage parallel capacitor interior media, be in operation and cannot monitor, therefore can only indirectly monitor from the temperature of shell the temperature intensification situation of inner hottest point, and at present general high-voltage parallel capacitor allows shell maximum temperature to be divided into two kinds: oil impregnated regulation is 60 ℃, and the regulation of chlorinated biphenyl dipping is 80 ℃.
Along with long-time use, can there is capacitor oil seepage phenomena in the high-voltage parallel capacitor under prior art, its inner pasta declines gradually, and oil mass reduces, and moisture and moisture enter simultaneously, causes its dielectric strength, insulation effect to decline.And when pasta drops to a certain degree, pasta can be exposed in the lead-in wire of capacitor internal and the upper end of electronic component, cause the electric discharge of electrode pair case shell or electronic component is punctured.The phenomenons such as operating ambient temperature is too high as also existed simultaneously, superpotential, all likely cause capacitor demolition accident when serious.Once and capacitor demolition accident often causes many, the damage of whole group capacitor in sequence simultaneously, even cause fire, whole capacitor chamber is burnt, had a strong impact on the operation of electricity net safety stable.
And in order to prevent capacitor leakage of oil, cause measure and method that follow-up issuable capacitor demolition accident is taked to have following two kinds under prior art:
1. strengthen artificial apparatus and make an inspection tour, see to have or not expand and oil seepage phenomena from capacitor appearance, thereby judge, whether there is oil seepage phenomena inside;
2. by apparatus measures capacitor temperature; prevent that temperature from raising; but capacitor group is all cabinet type installation and prevents now, each capacitor is in capacitor panel, and view window can be measured ripple by reflective infrared again; so can not be difficult to the temperature with each capacitor of apparatus measures; and each capacitor panel is opened after cabinet, check one by one, its human cost improves greatly, and the safety problem of bringing due to high voltage; the shutdown inspection of having to, its detection efficiency, site safety degree all can not be guaranteed.
In sum, the high-voltage parallel capacitor under prior art, due to the feature in its design and the defect brought of subsequent configuration, causes its detection efficiency low, and dangerous large problem, brings great hidden danger to the safe operation of equipment.
Utility model content
In order to solve the existing the problems referred to above of high-voltage parallel capacitor under prior art, the utility model provides a kind of novel high-voltage parallel capacitor temperature indicating device, this pick-up unit cost is low, installation, convenient fixing, can meet the explosion-proof needs of substation safety, nonflammable, and do not need external power source just can show in real time the field condition of high-voltage parallel capacitor temperature, concrete structure of the present utility model is as described below:
A high-voltage parallel capacitor temperature indicating device, comprises a copper shell, it is characterized in that:
Described copper shell is oblate column, one end sealing, one end opening, its inner hollow, place, centre in one end of its sealing offers a through hole, outside one side at the copper shell of this through hole is close to the copper base that is provided with a circle, and is socketed with a temperature scale dish on the shell edge of the openend of copper shell;
Described copper base is connected with the temperature sensing assembly in being arranged on copper shell by the through hole of copper shell, and this temperature sensing assembly temperature that conduction is come to copper base detects and indicates.
According to a kind of high-voltage parallel capacitor temperature indicating device of the present utility model, it is characterized in that the center superposition of the through hole that the center of described copper base and copper shell are offered.
According to a kind of high-voltage parallel capacitor temperature indicating device of the present utility model, it is characterized in that, described temperature sensing assembly comprises hairspring axle, hairspring dish and temperature pointer for temperature conduction, wherein with one end of hairspring axle, the through hole by copper shell is connected with copper base temperature conduction, junction is welded and fixed sealing, one side at hairspring Pan center is fixedly connected with the other end of hairspring axle with this temperature conduction, temperature pointer arranges the opposite side at hairspring Pan center, and this temperature pointer has been pointed to temperature scale dish.
Purpose of design is herein, and copper base plays a part temperature conduction, and temperature is transmitted to temperature conduction hairspring axle again by copper base, from temperature conduction, with hairspring axle, is passing to hairspring dish.After hairspring dish is heated, can change, cause the temperature pointer of one side setting to be offset, and temperature pointer just can obviously be found out from temperature scale dish after being offset, play the function of temperature detection indication.
According to a kind of high-voltage parallel capacitor temperature indicating device of the present utility model, it is characterized in that, described hairspring dish, its bilayer that is specially a use strip laminates sheet metal and coils into spiral web-like, hairspring Pan center is fixedly connected with hairspring axle, is then in the inner space that is fixed on copper shell of the spiral web-like that a circle circle expands.
Purpose of design is herein, hairspring dish is that the bilayer of strip laminates sheet metal and coils into spiral web-like, metal adopts the different metal bi of expansivity to be overrided to form, because being subject to temperature variation, hairspring dish do not cause each layer of expansion of metal or amount of contraction not etc., make the hairspring of spiral web-like coil or unclamp, because a side of hairspring dish is fixed and a side is provided with temperature pointer, therefore, when temperature variation, temperature pointer, along with hairspring has been coiled or unclamped and rotate, now reads temperature scale dish and can learn temperature variation.
According to a kind of high-voltage parallel capacitor temperature indicating device of the present utility model, it is characterized in that, one end of described copper shell aperture adopts circular transparent plexiglass plate to seal completely, and the inside of copper shell is hermetically-sealed construction.
Purpose of design is herein, and for the degree of accuracy of measuring, detection instrument inside is hermetically-sealed construction, prevents that humidity from causing that measurement is inaccurate.
A kind of high-voltage parallel capacitor of the present utility model is also extremely convenient with its installation of temperature indicating device, the flat bottom of the copper base that only copper housing exterior need be arranged is pasted thermal conductive silicon, then be adhesive in the place, top of single high-voltage parallel capacitor, should note temperature scale dish near the direction that is easy to observe.
Use a kind of high-voltage parallel capacitor of the present utility model to obtain following beneficial effect with temperature indicating device:
1. a kind of high-voltage parallel capacitor temperature indicating device of the present utility model, cost is low, and suitable a large amount of making are produced configuration and are used, and installation, convenient fixing;
2. a kind of high-voltage parallel capacitor of the present utility model can meet the explosion-proof needs of substation safety with temperature indicating device, nonflammable;
3. a kind of high-voltage parallel capacitor of the present utility model does not need the just field condition of high-voltage parallel capacitor temperature in real time of external power source with temperature indicating device, has saved the work of operation maintenance at ordinary times, greatly reduces human cost.
Accompanying drawing explanation
Fig. 1 is the concrete structure schematic diagram of temperature indicating device for a kind of high-voltage parallel capacitor of the present utility model;
Fig. 2 is the concrete mechanism vertical view of temperature indicating device for a kind of high-voltage parallel capacitor of the present utility model.
In figure: the copper shell of 1-, 2-copper base, 3-temperature scale dish, A-temperature sensing assembly, A1-temperature conduction hairspring axle, A2-hairspring dish, A3 temperature pointer.
Embodiment
Below in conjunction with drawings and Examples, a kind of high-voltage parallel capacitor of the present utility model is further described with temperature indicating device.
Embodiment
A kind of high-voltage parallel capacitor temperature indicating device, comprise a copper shell 1, copper shell is oblate column, one end sealing, one end opening, its inner hollow, offers a through hole at the place, centre of one end of its sealing, outside one side at the copper shell of this through hole is close to the copper base 2 that is provided with a circle, and is socketed with a temperature scale dish 3 on the shell edge of the openend of copper shell;
Copper base 2 is connected with the temperature sensing assembly A in being arranged on copper shell by the through hole of copper shell 1, and this temperature sensing assembly temperature that conduction is come to copper base detects and indicates.
The center superposition of the through hole that the center of copper base 2 and copper shell 1 are offered.
Temperature sensing assembly A comprises hairspring axle A1, hairspring dish A2 and temperature pointer A3 for temperature conduction, wherein one end of temperature conduction use hairspring axle is connected with copper base 2 by the through hole of copper shell 1, junction is welded and fixed sealing, one side at hairspring Pan center is fixedly connected with the other end of hairspring axle with this temperature conduction, temperature pointer arranges the opposite side at hairspring Pan center, and this temperature pointer has been pointed to temperature scale dish 3.
Copper base plays a part temperature conduction, and temperature is transmitted to temperature conduction hairspring axle again by copper base, from temperature conduction, with hairspring axle, is passing to hairspring dish.After hairspring dish is heated, can change, cause the temperature pointer of one side setting to be offset, and temperature pointer just can obviously be found out from temperature scale dish after being offset, play the function of temperature detection indication.
Its bilayer that is specially a use strip of hairspring dish A2 laminates sheet metal and coils into spiral web-like, and hairspring Pan center is fixedly connected with hairspring axle, is then in the inner space that is fixed on copper shell 1 of the spiral web-like that a circle circle expands.
Hairspring dish is that the bilayer of strip laminates sheet metal and coils into spiral web-like, the different metal bi of metal employing expansivity is overrided to form and (in the present embodiment, adopts gold and platinum to make, in order also to reduce costs, can adopt copper, aluminium, the metals such as tin), because being subject to temperature variation, hairspring dish do not cause each layer of expansion of metal or amount of contraction not etc., make the hairspring of spiral web-like coil or unclamp, because a side of hairspring dish is fixed and a side is provided with temperature pointer, therefore, when temperature variation, temperature pointer is along with hairspring has been coiled or unclamped and rotate, now read temperature scale dish and can learn temperature variation.
One end of copper shell 1 opening adopts circular transparent plexiglass plate to seal completely, and the inside of copper shell is hermetically-sealed construction.
For the degree of accuracy of measuring, detection instrument inside is hermetically-sealed construction, prevents that humidity from causing that measurement is inaccurate.
A kind of high-voltage parallel capacitor of the present utility model is also extremely convenient with its installation of temperature indicating device, the flat bottom of the copper base that only copper housing exterior need be arranged is pasted thermal conductive silicon, then be adhesive in the place, top of single high-voltage parallel capacitor, should note temperature scale dish near the direction that is easy to observe.
A kind of high-voltage parallel capacitor temperature indicating device of the present utility model, cost is low, suitable a large amount of making is produced configuration and is used, and installation, convenient fixing, can meet the explosion-proof needs of substation safety, nonflammable, and the utility model does not need the just field condition of high-voltage parallel capacitor temperature in real time of external power source, save the work of operation maintenance at ordinary times, greatly reduced human cost.The utility model is applicable to the temperature detection field of various high-voltage parallel capacitors.
Claims (5)
1. a high-voltage parallel capacitor temperature indicating device, comprises a copper shell (1), it is characterized in that:
Described copper shell (1) is oblate column, one end sealing, one end opening, its inner hollow, place, centre in one end of its sealing offers a through hole, outside one side at the copper shell of this through hole is close to the copper base (2) that is provided with a circle, and is socketed with a temperature scale dish (3) on the shell edge of the openend of copper shell;
Described copper base (2) is connected with the temperature sensing assembly (A) in being arranged on copper shell by the through hole of copper shell (1), and this temperature sensing assembly temperature that conduction is come to copper base detects and indicates.
2. a kind of high-voltage parallel capacitor temperature indicating device as claimed in claim 1, is characterized in that, the center superposition of the through hole that the center of described copper base (2) and copper shell (1) are offered.
3. a kind of high-voltage parallel capacitor temperature indicating device as claimed in claim 1, it is characterized in that, described temperature sensing assembly (A) comprises hairspring axle (A1) for temperature conduction, hairspring dish (A2) and temperature pointer (A3), wherein one end of temperature conduction use hairspring axle is connected with copper base (2) by the through hole of copper shell (1), junction is welded and fixed sealing, one side at hairspring Pan center is fixedly connected with the other end of hairspring axle with this temperature conduction, temperature pointer arranges the opposite side at hairspring Pan center, and this temperature pointer has been pointed to temperature scale dish (3).
4. a kind of high-voltage parallel capacitor temperature indicating device as claimed in claim 3, it is characterized in that, described hairspring dish (A2), its bilayer that is specially a use strip laminates sheet metal and coils into spiral web-like, hairspring Pan center is fixedly connected with hairspring axle, is then in the inner space that is fixed on copper shell (1) of the spiral web-like that a circle circle expands.
5. a kind of high-voltage parallel capacitor temperature indicating device as claimed in claim 1, is characterized in that, one end of described copper shell (1) opening adopts circular transparent plexiglass plate to seal completely, and the inside of copper shell is hermetically-sealed construction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420361606.3U CN203965057U (en) | 2014-07-01 | 2014-07-01 | A kind of high-voltage parallel capacitor temperature indicating device |
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| CN201420361606.3U CN203965057U (en) | 2014-07-01 | 2014-07-01 | A kind of high-voltage parallel capacitor temperature indicating device |
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| CN203965057U true CN203965057U (en) | 2014-11-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441608A (en) * | 2016-09-14 | 2017-02-22 | 国网上海市电力公司 | Temperature detection device for resistor and temperature detection method |
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2014
- 2014-07-01 CN CN201420361606.3U patent/CN203965057U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441608A (en) * | 2016-09-14 | 2017-02-22 | 国网上海市电力公司 | Temperature detection device for resistor and temperature detection method |
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