CN201910323U - Three-phase capacitor voltage-dividing electronic voltage transformer - Google Patents
Three-phase capacitor voltage-dividing electronic voltage transformer Download PDFInfo
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- CN201910323U CN201910323U CN2010206275274U CN201020627527U CN201910323U CN 201910323 U CN201910323 U CN 201910323U CN 2010206275274 U CN2010206275274 U CN 2010206275274U CN 201020627527 U CN201020627527 U CN 201020627527U CN 201910323 U CN201910323 U CN 201910323U
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Abstract
The utility model relates to a three-phase capacitor voltage-dividing electronic voltage transformer which is composed of the following components: a housing, three sets of electrode devices, a base, a bracket, an explosion-proof device, a connection cable, a basin-type insulator and a lead wire device. The three sets of electrode devices are provided on the base. The periphery of the three sets of electrode devices is provided with a housing which is connected with the base. The base-type insulator is provided on the housing. The connection cable is provided on the basin-type insulator and is respectively connected with a high-voltage electrode of each set of electrode device. As the three sets of electrode devices are respectively provided in the housing, a compact structure is obtained. As an upper port of the housing is designed to an arc-shaped structure, the field distribution is uniform and an external surface has high self-cleaning performance. The high-voltage electrode, the medium-voltage electrode and a grounding electrode are respectively made of aluminum alloy with low expansion coefficient. When a temperature changes, the volume change is small and the performance is stable. Each port on the high-voltage electrode, the medium-voltage electrode and the grounding electrode is designed to an arc shape thereby reducing point discharge. The connection cable is designed to a telescopic form thereby reducing device damage.
Description
Technical field
The utility model relates to a kind of voltage transformer that power industry is used, and a kind of specifically three phase capacitance is divided the die mould electronic type voltage transformer.
Background technology
Relevant by retrieval patent documentation does not retrieve the voltage transformer identical with the utility model structure at present as yet.Power industry generally needs the working voltage instrument transformer when the voltage in the system being measured or carry out relaying protection.Existing voltage transformer is generally electromagnetic potential transformer, and this type of instrument transformer is owing to its complex structure, and volume is bigger, and frequency band is narrower, simultaneously because it adopts electromagnetic induction need have iron core, so the magnetic saturation phenomenon can take place.Though existing electronic type voltage transformer has overcome the defective that traditional electromagnetic transformer adopts iron core, make its volume obviously reduce, in light weight, but also because its structural reason, its shielding and antijamming capability are relatively poor, particularly for more being difficult to satisfy the requirement of using under the state of high pressure three-phase, so be necessary existing three-phase electronic voltage mutual inductor is improved, to improve the result of use of equipment.
Summary of the invention
The purpose of this utility model is that a kind of improvement on existing electronic type voltage transformer basis will be provided, and it is good to have a shield effectiveness, and simple in structure, compact, and a kind of three phase capacitance of dependable performance is divided the die mould electronic type voltage transformer.
Technical characterictic of the present utility model is: considering that compact conformation, internal electric field distribute a kind of three phase capacitance that is designed on the rational basis by housing, three groups of electrode assemblies, base, support, explosion-protection equipment, stube cable, disc insulator, thread guide devices are formed to divide the die mould electronic type voltage transformer, on base, be provided with three groups of electrode assemblies, be provided with the housing that is connected with base in the periphery of three groups of electrode assemblies; On housing, be provided with disc insulator; Described stube cable is arranged on the disc insulator, and is connected with the high-field electrode of three groups of electrode assemblies respectively, is provided with explosion-protection equipment on base; Support is connected with base; Thread guide devices is connected with housing.
Described housing is the metal cylinder that material is made for adopting the low-expansion coefficient aluminium alloy, and the upper port place of housing is the arc shape structure.
The electrode assembly of described three groups is made up of high-field electrode, the middle piezoelectricity utmost point, grounding electrode, supports insulative, insulation support sleeve, and supports insulative is connected with base; On supports insulative, be provided with high-field electrode; Grounding electrode is arranged on the base; The middle piezoelectricity utmost point fixes by insulation support sleeve and grounding electrode.
The arc cylindrical shell of high-field electrode in the described electrode assembly for adopting low-expansion aluminum alloy materials to make, the end of high-field electrode is the arc shape structure.
The arc cylindrical shell that middle piezoelectricity in the described electrode assembly very adopts low-expansion aluminum alloy materials to make, Qi Kou end are warpage shape structure.
Grounding electrode in the described electrode assembly for adopt that low-expansion aluminum alloy materials makes cylindrical shell, its upper port is the arc shape structure of curling.
The insulation connection supporting arrangement that insulation support sleeve in the described electrode assembly is made for adopting insulating material.
Described stube cable is the telescopic cable, and its leader cable is the metallic conductor of helical structure.
Described thread guide devices is the lead wire device of a closed shield.
During use, electric current is incorporated in the disc insulator by conducting rod, and links to each other with stube cable respectively, be connected with high-field electrode respectively again, make the middle piezoelectricity utmost point produce electric field by electromagnetic induction, and signal is exported, thereby it is carried out Data Detection by thread guide devices.The form that the leader cable of stube cable adopts the metallic conductor of helicoidal structure to be designed to scalable shape, its objective is that preventing that instrument transformer from shaking, making when tilting between stube cable and conducting rod, the high-field electrode in transportation or construction produces pulling force, cause the junction damage and design.The port part of high-field electrode, the middle piezoelectricity utmost point, grounding electrode is designed to the form of arc shape, its objective is in order to reduce point discharge, and internal electric field evenly is provided with; It is that material is made that high-field electrode, the middle piezoelectricity utmost point, grounding electrode, housing adopt low-expansion aluminium alloy, its objective is that minimizing brings change in volume excessive because of variations in temperature, makes data unstable and be provided with.
The utility model has the advantages that: owing to three groups of electrode assemblies are separately positioned in the housing, thereby make compact integral structure, and Electric Field Distribution is even; Because the upper port place of housing is designed to the version of arc shape, thereby internal electric field is evenly distributed, and makes the outer surface of instrument transformer have good self-cleaning property; Because it is that material is made that high-field electrode, the middle piezoelectricity utmost point, the grounding electrode of electrode assembly adopt low-expansion aluminium alloy, thereby change in volume is little when variations in temperature, makes stable performance, the secondary output accuracy height of instrument transformer; Owing to be provided with grounding electrode, thereby make the complete machine shield effectiveness good; Because each port part of high-field electrode, the middle piezoelectricity utmost point, grounding electrode is designed to the form of arc shape, thereby has reduced point discharge, makes internal electric field even; Because stube cable is designed to the form of scalable shape, thereby has reduced components from being damaged; Because the inner sulfur hexafluoride gas that adopts carries out insulation protection, thereby good insulation preformance; Because compact conformation, rationally simple, dependable performance is so there is very big practical and popularizing value.
Description of drawings
Below with reference to accompanying drawing the utility model is further described:
Accompanying drawing 1 is the structural representation that a kind of three phase capacitance of the utility model is divided the die mould electronic type voltage transformer;
Accompanying drawing 2 is vertical views of accompanying drawing 1;
Accompanying drawing 3 is left views of accompanying drawing 1;
Accompanying drawing 4 is structural representations that a kind of three phase capacitance is divided the high-field electrode of die mould electronic type voltage transformer;
Accompanying drawing 6 is structural representations that a kind of three phase capacitance is divided the grounding electrode of die mould electronic type voltage transformer.
Embodiment
With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, a kind of three phase capacitance of the present utility model divides the die mould electronic type voltage transformer to be made up of housing 1, three groups of electrode assemblies 2, base 3, support 4, explosion-protection equipment 5, stube cable 6, disc insulator 7, thread guide devices 8, on base 3, be provided with three groups of electrode assemblies 2, be provided with the housing 1 that is connected with base 3 in the periphery of three groups of electrode assemblies 2, described housing 1 is the metal cylinder that material is made for adopting the low-expansion coefficient aluminium alloy, and the upper port place 11 of housing 1 is the arc shape structure; The electrode assembly 2 of described three groups is made up of high-field electrode 21, the middle piezoelectricity utmost point 22, grounding electrode 23, supports insulative 24, insulation support sleeve 25, and supports insulative 24 is connected with base 3; On supports insulative 24, be provided with high-field electrode 21, the arc cylindrical shell of described high-field electrode 21 for adopting low-expansion aluminum alloy materials to make, the end 211 of high-field electrode 21 is the arc shape structure; Grounding electrode 23 is arranged on the base 3, described grounding electrode 23 for adopt that low-expansion aluminum alloy materials makes cylindrical shell, its upper port 231 is the curling shape structure of arc; The middle piezoelectricity utmost point 22 fixes with grounding electrode 23 by insulation support sleeve 25, the arc cylindrical shell of the piezoelectricity utmost point 22 for adopting low-expansion aluminum alloy materials to make in described, Qi Kou end 221 is a warpage shape structure, the insulation connection supporting arrangement that described insulation support sleeve 25 is made for adopting insulating material; On housing 1, be provided with disc insulator 7; Described stube cable 6 is arranged on the disc insulator 7, and is connected with the high-field electrode 21 of three groups of electrode assemblies 2 respectively, and described stube cable 6 is the telescopic cable, and its leader cable 61 is the metallic conductor of helical structure.On base 3, be provided with explosion-protection equipment 5; Support 4 is connected with base 3; Thread guide devices 8 is connected with housing 1, and described thread guide devices 8 is the lead wire device of a closed shield.
Claims (9)
1. a three phase capacitance is divided the die mould electronic type voltage transformer, form by housing (1), three groups of electrode assemblies (2), base (3), support (4), explosion-protection equipment (5), stube cable (6), disc insulator (7), thread guide devices (8), it is characterized in that: on base (3), be provided with three groups of electrode assemblies (2), be provided with the housing (1) that is connected with base (3) in the periphery of three groups of electrode assemblies (2); On housing (1), be provided with disc insulator (7); Described stube cable (6) is arranged on the disc insulator (7), and is connected with the high-field electrode (21) of three groups of electrode assemblies (2) respectively, is provided with explosion-protection equipment (5) on base (3); Support (4) is connected with base (3); Thread guide devices (8) is connected with housing (1).
2. a kind of three phase capacitance according to claim 1 is divided the die mould electronic type voltage transformer, it is characterized in that: described housing (1) is the metal cylinder that material is made for adopting the low-expansion coefficient aluminium alloy, and the upper port place (11) of housing (1) is the arc shape structure.
3. a kind of three phase capacitance according to claim 1 is divided the die mould electronic type voltage transformer, it is characterized in that: the electrode assembly of described three groups (2) is made up of high-field electrode (21), the middle piezoelectricity utmost point (22), grounding electrode (23), supports insulative (24), insulation support sleeve (25), and supports insulative (24) is connected with base (3); On supports insulative (24), be provided with high-field electrode (21); Grounding electrode (23) is arranged on the base (3); The middle piezoelectricity utmost point (22) fixes by insulation support sleeve (25) and grounding electrode (23).
4. divide the die mould electronic type voltage transformer according to claim 1 or 3 described a kind of three phase capacitances, it is characterized in that: the arc cylindrical shell of the high-field electrode (21) in the described electrode assembly (2) for adopting low-expansion aluminum alloy materials to make, the end (211) of high-field electrode (21) is the arc shape structure.
5. divide the die mould electronic type voltage transformer according to claim 1 or 3 described a kind of three phase capacitances, it is characterized in that: the arc cylindrical shell of the middle piezoelectricity utmost point (22) in the described electrode assembly (2) for adopting low-expansion aluminum alloy materials to make, Qi Kou end (221) are warpage shape structure.
6. divide the die mould electronic type voltage transformer according to claim 1 or 3 described a kind of three phase capacitances, it is characterized in that: the grounding electrode (23) in the described electrode assembly (2) for adopt that low-expansion aluminum alloy materials makes cylindrical shell, its upper port (231) is the curling shape structure of arc.
7. divide the die mould electronic type voltage transformer according to claim 1 or 3 described a kind of three phase capacitances, it is characterized in that: the insulation connection supporting arrangement that the insulation support sleeve (25) in the described electrode assembly (2) is made for adopting insulating material.
8. a kind of three phase capacitance according to claim 1 is divided the die mould electronic type voltage transformer, it is characterized in that: described stube cable (6) is the telescopic cable, and its leader cable (61) is the metallic conductor of helical structure.
9. a kind of three phase capacitance according to claim 1 is divided the die mould electronic type voltage transformer, it is characterized in that: described thread guide devices (8) is the lead wire device of a closed shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206275274U CN201910323U (en) | 2010-11-27 | 2010-11-27 | Three-phase capacitor voltage-dividing electronic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206275274U CN201910323U (en) | 2010-11-27 | 2010-11-27 | Three-phase capacitor voltage-dividing electronic voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910323U true CN201910323U (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206275274U Expired - Fee Related CN201910323U (en) | 2010-11-27 | 2010-11-27 | Three-phase capacitor voltage-dividing electronic voltage transformer |
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| Country | Link |
|---|---|
| CN (1) | CN201910323U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479606A (en) * | 2010-11-27 | 2012-05-30 | 江苏思源赫兹互感器有限公司 | Dividing type electronic voltage transformer of three-phase capacitor |
| CN103093943A (en) * | 2011-11-01 | 2013-05-08 | 江苏思源赫兹互感器有限公司 | Transformer bushing |
| CN110320391A (en) * | 2019-07-11 | 2019-10-11 | 国家电网有限公司 | Arrester DC break down voltage test automatic contractive shielding line and preparation method thereof |
-
2010
- 2010-11-27 CN CN2010206275274U patent/CN201910323U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102479606A (en) * | 2010-11-27 | 2012-05-30 | 江苏思源赫兹互感器有限公司 | Dividing type electronic voltage transformer of three-phase capacitor |
| CN103093943A (en) * | 2011-11-01 | 2013-05-08 | 江苏思源赫兹互感器有限公司 | Transformer bushing |
| CN110320391A (en) * | 2019-07-11 | 2019-10-11 | 国家电网有限公司 | Arrester DC break down voltage test automatic contractive shielding line and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20161127 |