CN103472429A - Multifunctional multi-transformation ratio comparison device - Google Patents
Multifunctional multi-transformation ratio comparison device Download PDFInfo
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- CN103472429A CN103472429A CN2013103815264A CN201310381526A CN103472429A CN 103472429 A CN103472429 A CN 103472429A CN 2013103815264 A CN2013103815264 A CN 2013103815264A CN 201310381526 A CN201310381526 A CN 201310381526A CN 103472429 A CN103472429 A CN 103472429A
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- winding
- comparison device
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- functional
- case lid
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Abstract
The invention relates to a multifunctional multi-transformation ratio comparison device. The device comprises a case and a box cover, and is characterized in that the box cover is provided with a box cover locking head, the case is provided with a box cover locking buckle corresponding to the box cover locking head, the box cover locking buckle is used for buckling the box cover and the case, two handles are respectively arranged at side surfaces of the case and are used for lifting the case, a plurality of secondary binding posts are arranged at the top of the case, a primary binding post is also arranged at the top of the case, and the case is internally provided with an R-shaped iron core. The device is formed by winding the R-shaped iron core with high performance and has good linearity, the designed 20%-120% of ratio error and angular difference of a voltage transformer have good linearity and do not change suddenly. The selection of material of the iron core is miniaturization and lightweight-oriented, the structure of the device aims to be the smallest, the design of the coil of being compatible with four levels of voltages of 220kV, 110kV, 35kV and 10kV is taken into account, and the accuracy of the four coils are guaranteed.
Description
Technical field
The present invention relates to a kind of multi-functional polytropic ratio comparison device, belong to mutual inductor metering detection, calibration technology field.
Background technology
Voltage transformer (VT) is the important component part of electric energy metrical, and its accuracy has played vital role for the trade settlement that sends electricity and power supply department, therefore must be detected it.
The accuracy that is related to metering as the standard potential transformer of check voltage transformer (VT), so its accuracy requirement is high, the linear requirement, zero load and load error are little, and it is high that degree of stability is wanted.
The standard potential transformer electric pressure is corresponding with electric system primary equipment electric pressure, be divided into 6kV, 10kV, 35kV, 110kV, 220kV, 500kV, 750kV, 1000kV etc., the accuracy of standard potential transformer is high, and 0.05 grade, 0.02 grade, 0.01 grade, 0.005 grade and 0.002 grade etc. are generally arranged, 220kV and 110kV, 35kV, 10kV is present common electric pressure, and the probability of mutual inductor that simultaneously needs to measure these four grades is very big, we generally can use respectively 220kV, 110kV, the standard potential transformer of 35kV and 10kV is detected, the equipment of measuring like this is many, during test, more the process of exchange device is frequent, workload is large, the voltage transformer (VT) that also has the standard potential transformer of some 220kV grades to take into account to measure the 110kV grade and the standard potential transformer of some 35kV grades can be taken into account the voltage transformer (VT) of measuring the 10kV grade, but take into account also not having at present of four grades simultaneously.
Summary of the invention
In order to improve the efficiency of voltage transformer (VT) verification, solve no-load voltage ratio that current equipment exists not, the problems such as accuracy is not high, volume is not little.The metering verification that the present invention is voltage transformer (VT), provide a kind of device of multi-functional polytropic ratio to carry out the comparison of data.This device not only integrates a plurality of no-load voltage ratios of 220kV, 110kV, 35kV and many electric pressures of 10kV, and carry out the verification of ratio and angular difference at 10%U0,20% U0,50% U0 and 120% U0 of each electric pressure respectively, and guaranteed the consistent of each electric pressure 10 ~ 120%U0 ratio and angular difference data linearity, not there will be the sudden change of data, can guarantee the validity of comparing, substitute current on-the-spot mutual-inductor calibration device and carry out the comparison of data.
Main technical content of the present invention is as follows:
A kind of multi-functional polytropic ratio comparison device, comprise cabinet, case lid; The case lid tapered end is set on described case lid, the case lid snap close that described cabinet setting is corresponding with the case lid tapered end, snap close for case lid and cabinet, described cabinet side all arranges a handle, for mentioning cabinet, the top of described cabinet arranges some secondary connection posts, and the top of described cabinet also arranges a primary connection post; Described cabinet inside arranges a R shaped iron core.
Above-mentioned secondary connection post one has 6; Described 6 binding posts are public 0V terminal, 10kV/100V measurement terminal, 35kV/100V the measurement terminal, (110kV/ of ground terminal, secondary from right to left from bottom to up successively
)/(100V/
) measurement terminal, (220kV/
)/(100V/
) measurement terminal.
Above-mentioned R shaped iron core comprises the line bag that winding being around on the R shaped iron core and Secondary Winding form, and described Secondary Winding is the Secondary Winding with a plurality of taps; The number of turn that the number of turn of a described winding is a common winding of 220kV, 110kV, 35kV, 10kV standard potential transformer; Described Secondary Winding, according to the number of turn of a winding, is determined the Secondary Winding number of turn of 110kV, 35kV, 10kV standard potential transformer.
An above-mentioned winding is coiled into from inside to outside the multistage trapezoidal of successively reduction.
Above-mentioned Secondary Winding is around in the surface of a described winding, forms the trapezoidal top layer of afterbody.
Above-mentioned line bag has a plurality of no-load voltage ratios, and described no-load voltage ratio is: (220kV/
)/(100V/
), (110kV/
)/(100V/
), 35kV/100V, 10kV/100V, and its class of accuracy is 0.02 grade.
An above-mentioned winding and Secondary Winding arranged outside radome.
By technique scheme, the present invention at least has following advantages:
Comparison device of the present invention can carry out comparing with the voltage transformer (VT) of 220kV, 110kV, 35kV, tetra-grades of 10kV, has reduced the standard device of voltage transformer (VT) verification, does not need frequently more exchange device during test simultaneously.What the present invention adopted is the R shaped iron core of high-magnetodensity, low-loss material, and magnetic circuit is good, and degree of stability is high, and the design of line bag is not only considered insulation but also considered the distributing homogeneity of electric field, and the mode leakage field of line bag design is little, integrated (220kV/
)/(100V/
), (110kV/
)/(100V/
), 35kV/100V, these four main no-load voltage ratios of 10kV/100V, and the class of accuracy of four has all reached 0.02 grade.
The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
The schematic diagram that Fig. 2 is R shaped iron core in the present invention.
Embodiment
Reach for further setting forth the present invention technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, its embodiment, structure, feature and effect thereof that foundation the present invention is proposed, be described in detail as follows.
As shown in Figure 1, a kind of multi-functional polytropic ratio comparison device, comprise cabinet 1, case lid 2; Case lid tapered end 5 is set on case lid 2, cabinet 1 arranges the case lid snap close 3 corresponding with case lid tapered end 5, snap close for case lid 2 with cabinet 1, cabinet 1 side all arranges a handle 4, for mentioning cabinet 1, the top of cabinet 1 arranges some secondary connection posts 6, and the top of cabinet also arranges a primary connection post 7; Cabinet 1 inside arranges a R shaped iron core 8(because R shaped iron core 8 is positioned at cabinet 1, in Fig. 1, does not mark).Secondary connection post 6 one has 6, and 6 binding posts are public 0V terminal, 10kV/100V measurement terminal, 35kV/100V the measurement terminal, (110kV/ of ground terminal, secondary from right to left from bottom to up successively
)/(100V/
) measurement terminal, (220kV/
)/(100V/
) measurement terminal.
As shown in Figure 2, R shaped iron core 8 comprises the line bag that winding 9 being around on R shaped iron core 8 and Secondary Winding 10 form, and Secondary Winding 10 is the Secondary Winding with a plurality of taps; Determine the number of turn of a winding 9 and the number of turn of Secondary Winding 10 according to the 220kV standard potential transformer, the number of turn that the number of turn of a winding 9 is a common winding 9 of 220kV, 110kV, 35kV, 10kV standard potential transformer; Secondary Winding 10, according to the number of turn of a winding 9, is determined the number of turn of the Secondary Winding 10 of 110kV, 35kV, 10kV standard potential transformer.The number of turn of 110kV standard potential transformer Secondary Winding is two times of 220kV standard potential transformer Secondary Winding 10 numbers of turn.
As preferred version, one time winding 9 is coiled into from inside to outside the multistage trapezoidal of successively reduction.
As preferred version, Secondary Winding 10 is around in the surface of a winding 9, forms the trapezoidal top layer of afterbody.
As preferred version, the line bag has a plurality of no-load voltage ratios, and described no-load voltage ratio is: (220kV/
)/(100V/
), (110kV/
)/(100V/
), 35kV/100V, 10kV/100V, and its class of accuracy is 0.02 grade.The design of whole line bag is not only considered insulation but also is considered the distributing homogeneity of electric field, and the mode leakage field of line bag design is little, has guaranteed fully 220kV/
, 110kV/
, these four electric pressures of 35kV/100V, 10kV/100V error characteristics can meet accuracy grade.The number of turn of Secondary Winding is chosen and is optimized especially the best proportioning of having chosen each voltage, has fully guaranteed the accuracy of each electric pressure.
As preferred version, winding 9 and Secondary Winding 10 arranged outside radomes 11.
The present invention selects the coiling of high-performance R shaped iron core, its good linearity, and the ratio of the voltage transformer (VT) 20%～120% of design and angular difference good linearity, not there will be sudden change.Start from the selection of iron core, just consider to miniaturization, lightweight, structure, stand especially and ask minimum, just taken into full account the voltage of compatible 220kV and 110kV, 35kV, tetra-grades of 10kV from the design of line bag, and guaranteed the accuracy of four line bags.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet not in order to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. a multi-functional polytropic ratio comparison device, comprise cabinet, case lid; It is characterized in that: the case lid tapered end is set on described case lid, the case lid snap close that described cabinet setting is corresponding with the case lid tapered end, snap close for case lid and cabinet, described cabinet side all arranges a handle, for mentioning cabinet, the top of described cabinet arranges some secondary connection posts, and the top of described cabinet also arranges a primary connection post; Described cabinet inside arranges a R shaped iron core.
2. a kind of multi-functional polytropic ratio comparison device according to claim 1, it is characterized in that: described secondary connection post one has 6; Described 6 binding posts are public 0V terminal, 10kV/100V measurement terminal, 35kV/100V the measurement terminal, (110kV/ of ground terminal, secondary from right to left from bottom to up successively
)/(100V/
) measurement terminal, (220kV/
)/(100V/
) measurement terminal.
3. a kind of multi-functional polytropic ratio comparison device according to claim 1 is characterized in that: described R shaped iron core comprises the line bag that winding being around on the R shaped iron core and Secondary Winding form, and described Secondary Winding is the Secondary Winding with a plurality of taps; The number of turn that the number of turn of a described winding is a common winding of 220kV, 110kV, 35kV, 10kV standard potential transformer; Described Secondary Winding, according to the number of turn of a winding, is determined the number of turn of the Secondary Winding of 110kV, 35kV, 10kV standard potential transformer.
4. multi-functional polytropic ratio comparison device according to claim 3 is characterized in that: a described winding is coiled into from inside to outside the multistage trapezoidal of successively reduction.
5. multi-functional polytropic ratio comparison device according to claim 3, it is characterized in that: described Secondary Winding is around in the surface of a described winding, forms the trapezoidal top layer of afterbody.
6. multi-functional polytropic ratio comparison device according to claim 3, it is characterized in that: described line bag has a plurality of no-load voltage ratios, and described no-load voltage ratio is: (220kV/
)/(100V/
), (110kV/
)/(100V/
), 35kV/100V, 10kV/100V, and its class of accuracy is 0.02 grade.
7. multi-functional polytropic ratio comparison device according to claim 3, is characterized in that: a described winding and Secondary Winding arranged outside radome.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103815264A CN103472429A (en) | 2013-08-28 | 2013-08-28 | Multifunctional multi-transformation ratio comparison device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103815264A CN103472429A (en) | 2013-08-28 | 2013-08-28 | Multifunctional multi-transformation ratio comparison device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103472429A true CN103472429A (en) | 2013-12-25 |
Family
ID=49797349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103815264A Pending CN103472429A (en) | 2013-08-28 | 2013-08-28 | Multifunctional multi-transformation ratio comparison device |
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| Country | Link |
|---|---|
| CN (1) | CN103472429A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297712A (en) * | 2014-10-31 | 2015-01-21 | 国家电网公司 | Gage and source integrated device for anti-interference digital high-voltage gage calibration |
| CN104916421A (en) * | 2015-05-18 | 2015-09-16 | 国网安徽省电力公司芜湖供电公司 | High precision multi-transformation ratio voltage transformer comparison device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347304A1 (en) * | 1988-06-17 | 1989-12-20 | Jean Paul Avocat | Electric measuring transformer |
| FR2682217A1 (en) * | 1991-10-07 | 1993-04-09 | Grolleau Ets | Multi-ratio unplugable current transformer |
| CN102368433A (en) * | 2011-03-08 | 2012-03-07 | 江苏科兴电器有限公司 | Multi-range standard voltage transformator |
| CN203455470U (en) * | 2013-08-28 | 2014-02-26 | 国家电网公司 | Multifunctional device for comparing multiple transformation ratios |
-
2013
- 2013-08-28 CN CN2013103815264A patent/CN103472429A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0347304A1 (en) * | 1988-06-17 | 1989-12-20 | Jean Paul Avocat | Electric measuring transformer |
| FR2682217A1 (en) * | 1991-10-07 | 1993-04-09 | Grolleau Ets | Multi-ratio unplugable current transformer |
| CN102368433A (en) * | 2011-03-08 | 2012-03-07 | 江苏科兴电器有限公司 | Multi-range standard voltage transformator |
| CN203455470U (en) * | 2013-08-28 | 2014-02-26 | 国家电网公司 | Multifunctional device for comparing multiple transformation ratios |
Non-Patent Citations (2)
| Title |
|---|
| 无: "HJ48型精密电压互感器", 《机电新产品导报》 * |
| 无: "HL90型精密电流互感器", 《机电新产品导报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297712A (en) * | 2014-10-31 | 2015-01-21 | 国家电网公司 | Gage and source integrated device for anti-interference digital high-voltage gage calibration |
| CN104297712B (en) * | 2014-10-31 | 2017-10-24 | 国家电网公司 | A kind of anti-interference digital high voltage table calibration resource integrated device of table |
| CN104916421A (en) * | 2015-05-18 | 2015-09-16 | 国网安徽省电力公司芜湖供电公司 | High precision multi-transformation ratio voltage transformer comparison device |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Di Xuefeng Inventor after: Yin Feng Inventor after: Bao Yushu Inventor after: Qin Jiaxi Inventor after: Sun Jun Inventor after: Meng Jia Inventor after: Xu Minrui Inventor after: Li Xue Inventor after: Zhang Jian Inventor after: Zhang Xingpei Inventor before: Di Xuefeng Inventor before: Yin Feng Inventor before: Bao Yushu Inventor before: Qin Jiaxi Inventor before: Sun Jun Inventor before: Meng Jia Inventor before: Xu Minrui Inventor before: Li Xue Inventor before: Zhang Jian Inventor before: Zhang Xingpei |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131225 |