CN104361986A - Electromagnetic type potential transformer - Google Patents
Electromagnetic type potential transformer Download PDFInfo
- Publication number
- CN104361986A CN104361986A CN201410626073.1A CN201410626073A CN104361986A CN 104361986 A CN104361986 A CN 104361986A CN 201410626073 A CN201410626073 A CN 201410626073A CN 104361986 A CN104361986 A CN 104361986A
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- Prior art keywords
- contact seat
- potential transformer
- coil
- base
- middle conductor
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Abstract
The invention discloses an electromagnetic type potential transformer. The invention provides the electromagnetic type potential transformer which is economical and efficient, stable in transmission, safe and reliable, convenient to operate and long in service life, and can be used for effectively separating the potential transformer from a GIS product when the GIS product is subjected to a power frequency withstand voltage test. The electromagnetic type potential transformer comprises a base, a shell which is connected onto the base in a sealed mode, and a coil, an insulating transmission device and a slide contact seat device which are arranged in the shell; the coil is connected onto the base in insulating mode; the slide contact seat device comprises a slide contact seat, a middle conductor, and a transmission gear arranged on the slide contact seat; the slide contact seat is fixed at the top of the shell in an insulating manner; the middle conductor is glidingly arranged on the slide contact seat and is electrically connected with the slide contact seat; the sliding direction of the middle conductor is arranged along the radial direction of the coil and is vertical to the base; a sliding route of the middle conductor is not less than the minimum distance from the slide contact seat to the coil; the transmission gear is engaged with a rack, which is arranged along the axial direction, on the middle conductor; the insulating transmission device is used for driving the transmission gear to rotate.
Description
Technical field
The present invention relates to High-Voltage Electrical Appliances field, be specially a kind of electromagnetic potential transformer.
Background technology
Current Domestic electricity needs is increasing, the demand of corresponding power transmission and transforming equipment is also increasing, electric power system is to GIS (high voltage distribution installation, namely the switchyard can seen) degree of recognition constantly promote, along with the continuous increase of GIS market consumption, the market demand of electromagnetic potential transformer is also increasing.When GIS product carries out power frequency withstand test in erecting bed, if do not have isolating switch to cut-off before electromagnetic potential transformer, easily there is magnetic saturation unshakable in one's determination, cause voltage transformer product burning phenomenon.
For above problem, usual solution is when GIS product carries out power frequency withstand test in erecting bed, is first removed from GIS product by voltage transformer product, is installed by voltage transformer after end to be tested again, so not only uneconomical but also expend time in.
Summary of the invention
For problems of the prior art, the invention provides a kind of economical and efficient, safe and reliable, simple operation, effectively can realize the electromagnetic potential transformer of voltage transformer and GIS product being isolated when GIS product carries out power frequency withstand test.
The present invention is achieved through the following technical solutions:
A kind of electromagnetic potential transformer comprises base, is sealedly connected on the body on base, and is arranged on coil, insulated transmission device and the slip touch base device in the body; Coil insulation is connected on base; Slip touch base device comprises sliding contact seat and middle conductor, and is arranged on the travelling gear on sliding contact seat; The insulation of sliding contact seat is fixed on body top; Middle conductor is slidably arranged on sliding contact seat, and is electrically connected with sliding contact seat, and the glide direction of middle conductor to be arranged and perpendicular to base, the sliding stroke of middle conductor is not less than the minimum range between sliding contact seat and coil along the radial direction of coil; Travelling gear engages with the tooth bar that middle conductor is arranged vertically; Insulated transmission device rotates for driving travelling gear.
Preferably, insulated transmission device comprises flange and power transmission shaft; One end of power transmission shaft is fixedly connected with travelling gear, and the other end is stretched out the body and is arranged on the body by flange seal rotation.
Preferably, insulated transmission device comprises flange and power transmission shaft; One end of power transmission shaft is connected with a joggle with travelling gear by the coaxial worm screw arranged, and the other end is stretched out the body and is arranged on the body by flange seal rotation.
Further, the protection box hinged with the body that have of the external part outer setting of flange and power transmission shaft.
Preferably, sliding contact seat is connected to body top by the disc insulator insulation be arranged in series.
Further, radome is provided with between sliding contact seat and disc insulator.
Preferably, the SF of 0.3MPa-0.5MPa is filled in the sealed cavity that base and the body that is tightly connected with it are formed
6gas.
Preferably, coil to be insulated with base by insulating support and is connected.
Further, on coil, the contact site of corresponding middle conductor is provided with the bonding conductor of protrusion.
Compared with prior art, the present invention has following useful technique effect:
The present invention adopt the operating mechanism that is made up of sliding contact seat, middle conductor and travelling gear manually actuating insulated transmission apparatus, with nutating gear rotate, the middle conductor be electrically connected with sliding contact seat is moved up and down, to reach GIS product when carrying out power frequency withstand test by object that voltage transformer and GIS product are isolated, this operation is fairly simple, economical and efficient, effectively prevent and occur that iron core magnetic causes the generation of voltage transformer product burning phenomenon after saturated; Meanwhile, slip touch base device, insulated transmission device and coil are all arranged in the body on base, and structural integrity is strong, and security reliability is high; Glide direction is set by sliding on sliding contact seat along the radial direction of coil and perpendicular to the middle conductor of base, and the sliding stroke of middle conductor is not less than the minimum range between sliding contact seat and coil, and travelling gear is set, travelling gear is engaged with the tooth bar that middle conductor is arranged vertically, effectively can improve transmission efficiency, ensure that isolation is efficiently carried out; And can not metal object be produced at work, the feature such as there is stable drive, reliable operation, efficiency is high, the life-span is long.
Further, the insulated transmission device that the power transmission shaft be fixedly connected with travelling gear by flange and one end by setting is formed, effectively can ensure the motion of travelling gear, economical and efficient, time saving and energy saving.
Further, by arranging the insulated transmission device be made up of flange and the power transmission shaft be fixedly connected with travelling gear by worm screw, effectively can ensure the motion of travelling gear, and realize self-locking in contact with while disconnecting, stablizing of Guarantee Status, avoid the malfunction that external factor produces, rational in infrastructure, safe and reliable.
Further, the protection box simultaneously by arranging can be protected travelling gear and flange, avoids sustaining damage, improves useful life.
Further, adopt the disc insulator that is arranged in series that sliding contact seat is connected to body top, be used for the connection of sealed electrical electromagnetic type voltage transformer and electric power system high-pressure section, ensure that security reliability, insulation property strengthen.
Further, by adopting, radome being set between sliding contact seat and disc insulator, effectively can improving Potential distribution, ensure insulation effect, effectively improve the useful life of electromagnetic potential transformer.
Further, the SF of 0.3MPa-0.5MPa is adopted
6gas is filled the sealed cavity that base and the body that is tightly connected with it are formed, and again ensures the insulation effect in sealed cavity, improves security performance.
Further, by arranging insulating support, coil being connected with base insulation, improving resistance to overturning, avoiding unnecessary damage; Coil arranges the bonding conductor of protrusion, can ensure coil and middle conductor reliable be connected and stablize disconnect, improve the stability that it uses.
Accompanying drawing explanation
Fig. 1 is isolation fracture structure front view of the present invention.
Fig. 2 is isolation fracture structure side view of the present invention.
Fig. 3 is that the present invention slides touch base apparatus structure schematic diagram.
Fig. 4 is insulated transmission shaft device structural representation of the present invention.
In figure: 1 is base; 2 is coil; 3 is the body; 4 is insulated transmission device; 41 is protection box; 42 is flange; 43 is power transmission shaft; 5 is slip touch base device; 51 is travelling gear; 52 is slip touch base; 53 is middle conductor; 6 is radome; 7 is disc insulator.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
A kind of electromagnetic potential transformer of the present invention, as shown in Figure 1, comprises base 1, is sealedly connected on the body 3 on base 1, and be arranged on coil 2, insulated transmission device 4 and the slip touch base device 5 in the body 3; Coil 2 insulation is connected on base 1; As shown in Figure 3, slip touch base device 5 comprises sliding contact seat 52 and middle conductor 53, and is arranged on the travelling gear 51 on sliding contact seat 52; Sliding contact seat 52 insulation is fixed on the body 3 top; Middle conductor 53 is slidably arranged on sliding contact seat 52, and be electrically connected with sliding contact seat 52, the glide direction of middle conductor 53 to be arranged and perpendicular to base 1, the sliding stroke of middle conductor 53 is not less than the minimum range between sliding contact seat 52 and coil 2 along the radial direction of coil 2; Travelling gear 51 engages with the tooth bar that middle conductor 53 is arranged vertically; Described insulated transmission device 4 rotates for driving travelling gear 51.
In this preferred embodiment, as shown in Figure 2 and Figure 4, insulated transmission device 4 comprises flange 42 and power transmission shaft 43; One end of power transmission shaft 43 is fixedly connected with travelling gear 51, and the other end is stretched out the body 3 and is arranged on the body 3 by flange 42 sealed rotational.Or one end of power transmission shaft 43 is connected with a joggle by the coaxial worm screw that arranges and travelling gear 51, and the other end is stretched out the body 3 and is arranged on the body 3 by flange 42 sealed rotational.The present invention in the past a kind of structure is that example is described.At the protection box 41 hinged with the body 3 that the external part outer setting of flange 42 and power transmission shaft 43 has.
Wherein, as shown in Figure 1, sliding contact seat 52 is connected to the body 3 top by disc insulator 7 insulation be arranged in series; Radome 6 is provided with between sliding contact seat 52 and disc insulator 7.The SF6 gas of 0.3MPa-0.5MPa is filled in the sealed cavity that base 1 and the body 3 be tightly connected with it are formed.Coil 2 to be insulated with base 1 by insulating support and is connected.In this preferred embodiment, on coil 2, the contact site of corresponding middle conductor 53 is provided with the bonding conductor of protrusion.
Concrete, the present invention includes base 1, as depicted in figs. 1 and 2, it is sealedly connected with the body 3, in the sealed cavity that base 1 and the body 3 be tightly connected with it are formed, fill the SF of 0.3MPa-0.5MPa
6gas; Be connected with coil 2 by insulating support insulation in the body 3, inside is also provided with insulated transmission device 4 and slip touch base device 5; As shown in Figure 4, insulated transmission device 4 comprises one end and to be fixedly connected with travelling gear 51 and the other end stretches out the body 3 seals the power transmission shaft 43 arranged, be arranged on flange on power transmission shaft 43 external part 42 and protection box 41, flange 42 and the external part of power transmission shaft 43 are arranged in the protection box 41 that is connected with the body 3; As shown in the figure, slip touch base device 5 comprises insulation and is fixed on the sliding contact seat 52 at the body 3 top, is arranged on the travelling gear 51 on sliding contact seat 52 and is slidably arranged on sliding contact seat 52 and the middle conductor 53 be connected electrically; Sliding contact seat 52 is connected to the body 3 top by disc insulator 7 insulation be arranged in series, and is provided with radome 6 between the two; The glide direction of middle conductor 53 to be arranged and perpendicular to base 1 along the radial direction of coil 2, and its sliding stroke is not less than the minimum range between sliding contact seat 52 and coil 2.
When using the present invention to carry out GIS product erecting bed power frequency withstand test, manually or electric operating power transmission shaft 43, power transmission shaft 43 is made to be with nutating gear 51 to rotate, thus middle conductor 53 is moved up and down, because middle conductor 53 is electrically connected with sliding contact seat 52, and its sliding stroke is not less than the minimum range between sliding contact seat 52 and coil 2, thus conveniently can reach GIS product when carrying out power frequency withstand test by object that voltage transformer and GIS product are isolated.
Claims (9)
1. an electromagnetic potential transformer, it is characterized in that, comprise base (1), be sealedly connected on the body (3) on base (1), and be arranged on coil (2), insulated transmission device (4) and the slip touch base device (5) in the body (3); Coil (2) insulation is connected on base (1); Described slip touch base device (5) comprises sliding contact seat (52) and middle conductor (53), and is arranged on the travelling gear (51) on sliding contact seat (52); Sliding contact seat (52) insulation is fixed on the body (3) top; Middle conductor (53) is slidably arranged on sliding contact seat (52), and be electrically connected with sliding contact seat (52), the glide direction of middle conductor (53) to be arranged and perpendicular to base (1), the sliding stroke of middle conductor (53) is not less than the minimum range between sliding contact seat (52) and coil (2) along the radial direction of coil (2); Travelling gear (51) engages with the tooth bar that middle conductor (53) is arranged vertically; Described insulated transmission device (4) rotates for driving travelling gear (51).
2. a kind of electromagnetic potential transformer according to claim 1, is characterized in that, insulated transmission device (4) comprises flange (42) and power transmission shaft (43); One end of power transmission shaft (43) is fixedly connected with travelling gear (51), and the other end is stretched out the body (3) and is arranged on the body (3) by flange (42) sealed rotational.
3. a kind of electromagnetic potential transformer according to claim 1, is characterized in that, insulated transmission device (4) comprises flange (42) and power transmission shaft (43); One end of power transmission shaft (43) is connected with a joggle by the coaxial worm screw that arranges and travelling gear (51), and the other end is stretched out the body (3) and is arranged on the body (3) by flange (42) sealed rotational.
4. a kind of electromagnetic potential transformer according to Claims 2 or 3, is characterized in that, the protection box (41) hinged with the body (3) that the external part outer setting of flange (42) and power transmission shaft (43) has.
5. a kind of electromagnetic potential transformer according to claim 1, is characterized in that, sliding contact seat (52) is connected to the body (3) top by disc insulator (7) insulation be arranged in series.
6. a kind of electromagnetic potential transformer according to claim 5, is characterized in that, is provided with radome (6) between sliding contact seat (52) and disc insulator (7).
7. a kind of electromagnetic potential transformer according to claim 1, is characterized in that, fills the SF6 gas of 0.3MPa-0.5MPa in the sealed cavity that base (1) and the body (3) be tightly connected with it are formed.
8. a kind of electromagnetic potential transformer according to claim 1, is characterized in that, coil (2) to be insulated with base (1) by insulating support and is connected.
9. a kind of electromagnetic potential transformer according to claim 1 or 8, is characterized in that, the contact site of the upper corresponding middle conductor (53) of coil (2) is provided with the bonding conductor of protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626073.1A CN104361986A (en) | 2014-11-07 | 2014-11-07 | Electromagnetic type potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626073.1A CN104361986A (en) | 2014-11-07 | 2014-11-07 | Electromagnetic type potential transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104361986A true CN104361986A (en) | 2015-02-18 |
Family
ID=52529241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410626073.1A Pending CN104361986A (en) | 2014-11-07 | 2014-11-07 | Electromagnetic type potential transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104361986A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717897A (en) * | 2018-08-04 | 2018-10-30 | 安徽华能集团电器有限公司 | A kind of Self-protecting mutual inductor |
| CN113053647A (en) * | 2019-12-27 | 2021-06-29 | 西安西电高压开关有限责任公司 | Three-phase voltage transformer isolation switching-on and switching-off device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344539A (en) * | 2008-08-22 | 2009-01-14 | 国网武汉高压研究院 | 1000kV electromagnetic accurate voltage mutual inductor for magnitude tracing |
| CN101527431A (en) * | 2009-04-13 | 2009-09-09 | 中国西电电气股份有限公司 | Supervoltage/extra-high voltage GIS isolating device |
| JP2010087045A (en) * | 2008-09-29 | 2010-04-15 | Nissin Electric Co Ltd | Transformer for gas insulated meter |
| CN203026335U (en) * | 2013-01-16 | 2013-06-26 | 广东四会互感器厂有限公司 | Single-phase voltage transformer with switch |
| CN203178413U (en) * | 2013-01-17 | 2013-09-04 | 国家电网公司 | High-voltage switchgear test apparatus with voltage transformer |
| CN203552920U (en) * | 2013-10-12 | 2014-04-16 | 江苏思源赫兹互感器有限公司 | Voltage transformer with compact structure |
-
2014
- 2014-11-07 CN CN201410626073.1A patent/CN104361986A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101344539A (en) * | 2008-08-22 | 2009-01-14 | 国网武汉高压研究院 | 1000kV electromagnetic accurate voltage mutual inductor for magnitude tracing |
| JP2010087045A (en) * | 2008-09-29 | 2010-04-15 | Nissin Electric Co Ltd | Transformer for gas insulated meter |
| CN101527431A (en) * | 2009-04-13 | 2009-09-09 | 中国西电电气股份有限公司 | Supervoltage/extra-high voltage GIS isolating device |
| CN203026335U (en) * | 2013-01-16 | 2013-06-26 | 广东四会互感器厂有限公司 | Single-phase voltage transformer with switch |
| CN203178413U (en) * | 2013-01-17 | 2013-09-04 | 国家电网公司 | High-voltage switchgear test apparatus with voltage transformer |
| CN203552920U (en) * | 2013-10-12 | 2014-04-16 | 江苏思源赫兹互感器有限公司 | Voltage transformer with compact structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717897A (en) * | 2018-08-04 | 2018-10-30 | 安徽华能集团电器有限公司 | A kind of Self-protecting mutual inductor |
| CN108717897B (en) * | 2018-08-04 | 2023-11-17 | 安徽华能集团电器有限公司 | Self-protection type mutual inductor |
| CN113053647A (en) * | 2019-12-27 | 2021-06-29 | 西安西电高压开关有限责任公司 | Three-phase voltage transformer isolation switching-on and switching-off device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |