CN208953591U - A kind of high voltage standard capacitor and high voltage electric equipment dielectric loss measuring set - Google Patents
A kind of high voltage standard capacitor and high voltage electric equipment dielectric loss measuring set Download PDFInfo
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- CN208953591U CN208953591U CN201821402658.5U CN201821402658U CN208953591U CN 208953591 U CN208953591 U CN 208953591U CN 201821402658 U CN201821402658 U CN 201821402658U CN 208953591 U CN208953591 U CN 208953591U
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- dielectric loss
- high voltage
- grading ring
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- capacitor
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Abstract
The utility model discloses it is a kind of can high-tension shielding high voltage standard capacitor, including cylindrical sealed insulation cylinder, the sealed insulation cylinder is internally provided with first capacitor electrode, the second capacitance electrode and bucking electrode；And the first capacitor electrode connection terminal of sealed insulation cylinder one end is stretched out, stretch out the second capacitance electrode connecting terminal and bucking electrode connecting terminal of the sealed insulation cylinder other end；The both ends of the sealed insulation cylinder are respectively arranged with the first grading ring and the second grading ring, the upright pedestal and handstand pedestal of first grading ring and the second grading ring respectively as high voltage standard capacitor.The utility model can high-tension shielding high voltage standard capacitor be used for high voltage electric equipment dielectric loss measurement when, not only eliminate the influence of bucking current, measurement accuracy is improved, while avoiding the influence due to insulated leg to standard capacitor own vol, carries application convenient for scene.
Description
Technical field
The utility model relates to high voltage electric equipment dielectric loss measurement technical fields more particularly to one kind can high-tension shielding
High voltage standard capacitor and high voltage electric equipment dielectric loss measuring set.
Background technique
When Electric Equipment Dielectric Loss measures, the alternating voltage of test product, electric current are applied to by dielectric loss measurement unit measurement
Amplitude and phase calculated, obtain the dielectric loss and capacitor of test product.The voltage measurement of test product is mainly passed through measurement with
The electric current of test product parallel connection standard capacitance converts.Current measurement to test product is broadly divided into two kinds according to the earthing mode of test product
Mode: one is the test products for having insulation over the ground, carry out current measurement in its low-pressure end, are referred to as the wiring measurement that is positive；One is right
The test product of ground naked carries out current measurement in its high-voltage end, and referred to as reverse wiring measures.
When reverse wiring measures, also there are two types of methods.One is fibre optic current sensor measurement methods, i.e., by dielectric loss measurement list
Member is placed on low-pressure side, and standard capacitance electric current is derived from standard capacitance measurement end, and the shielding end of standard capacitance is grounded the (screen of standard capacitance
It is close to cover current potential between end and measurement end, is between the two weak isolating), fibre optic current sensor will be measured in test product high-pressure side
Test product electric current, dielectric loss measurement unit is transmitted to by optical fiber.In measurement process, due to the intrinsic electrical-optical-of fibre optic current sensor
Electric transformed error produces the error in measurement result.Another measurement method is high-voltage radio measurement method, i.e., surveys dielectric loss
Amount unit is placed on test product high-pressure side, and test product electric current is directly measured by dielectric loss measurement unit in test product high-pressure side, dielectric loss measurement
The measured dielectric loss being calculated and capacitance are wirelessly sent to testing crew by unit, avoid fibre-optic current biography
The transformed error of sensor.But under this measurement method, dielectric loss measurement unit just can not be directly from the standard for being in low-pressure end
Capacitance measurement end obtains standard capacitance electric current.Since the high voltage side current of standard capacitance contains the screening electrode electricity of standard capacitance
Stream, if influence of the screening electrode interference signal to measurement result can not be eliminated from standard capacitance high-pressure side obtaining current.
In order to solve this problem, the method mainly used at present is the insulation of setting with standard capacitance same dielectric grade
Standard capacitance low-pressure side is placed on insulated leg by support, when measurement, standard capacitance high-pressure side ground connection, the shielding of standard capacitance
End and measurement end introduce dielectric loss measurement unit respectively, to eliminate the influence of bucking current.Due to insulated leg under this mode
Presence, the volume of standard capacitance is multiplied, unfavorable to carry on site and application.
Utility model content
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide it is a kind of can high-tension shielding high pressure
Standard capacitor can eliminate the influence of bucking current in high voltage electric equipment dielectric loss measurement, can also solve existing
Big, the inconvenient to carry problem of some insulated leg volumes.
In order to achieve the above object, the utility model is achieved using following technical scheme.
Technical solution one:
It is a kind of can high-tension shielding high voltage standard capacitor, including cylindrical sealed insulation cylinder, the sealed insulation cylinder
Be internally provided with first capacitor electrode, the second capacitance electrode and bucking electrode；And stretch out sealed insulation cylinder one end
First capacitor electrode connection terminal stretches out the second capacitance electrode connecting terminal and bucking electrode of the sealed insulation cylinder other end
Connecting terminal；The both ends of the sealed insulation cylinder are respectively arranged with the first grading ring and the second grading ring, first grading ring
With the second grading ring respectively as the upright pedestal and handstand pedestal of high voltage standard capacitor.
The characteristics of the utility model and further improvement lies in that:
Preferably, the material of first grading ring and the second grading ring is respectively stainless steel.
Preferably, the shape of first grading ring and the second grading ring is identical.
Preferably, first grading ring and the second grading ring are respectively solid grading ring.
Technical solution two:
A kind of high voltage electric equipment dielectric loss measuring set, including pressurized equipment, dielectric loss measurement unit, can high-tension shielding
High voltage standard capacitor and have the test product of insulation over the ground；The high-voltage end of the first capacitor electrode connection terminal and test product is simultaneously
It connects, and is connect with the high-voltage end of pressurized equipment；The standard capacitance terminal of the measuring electrode connecting terminal and dielectric loss measurement unit
Connection；The bucking electrode connecting terminal ground connection；The ground terminal ground of dielectric loss measurement unit, the test product end of dielectric loss measurement unit
Son is connect with the low-pressure end of test product.
Technical solution three:
A kind of high voltage electric equipment dielectric loss measuring set, including pressurized equipment, dielectric loss measurement unit, can high-tension shielding
High voltage standard capacitor and the test product of naked over the ground, the first capacitor electrode connection terminal ground connection；Second capacitor
Electrode connection terminal is connect with the standard capacitance terminal of dielectric loss measurement unit；The bucking electrode connecting terminal and dielectric loss measurement list
The ground terminal connection of member, the ground terminal of dielectric loss measurement unit and the high-voltage end of pressurized equipment connect；Dielectric loss measurement unit
The connection of the high-voltage end of test product terminal and test product.
Compared with prior art, the utility model has the following beneficial effects:
The first grading ring and the second grading ring of the high voltage standard capacitor of the utility model can not only play pressure,
It can also play a supportive role；When carrying out dielectric loss measurement to high voltage electric equipment, bucking current when not only eliminating measurement
Influence, improve the accuracy of measurement, while also avoiding the influence due to insulated leg to standard capacitor own vol,
Application is carried convenient for scene.
Detailed description of the invention
The utility model is described in further details in the following with reference to the drawings and specific embodiments.
Fig. 1 be the utility model can high-tension shielding high voltage standard capacitor a kind of embodiment structural schematic diagram；
Fig. 2 be the utility model can high-tension shielding high voltage standard capacitor for high voltage electric equipment dielectric loss survey
Measure the connection schematic diagram of positive wiring measurement；
Fig. 3 be the utility model can high-tension shielding high voltage standard capacitor for high voltage electric equipment dielectric loss survey
Measure the connection schematic diagram of reverse wiring measurement.
In figure: 1 sealed insulation cylinder；2 first capacitor electrodes；201 first capacitor electrode connection terminals；3 second capacitors electricity
Pole；301 second capacitance electrode connecting terminals；4 bucking electrodes；401 bucking electrode connecting terminals；5 first grading rings；6 second
Pressure ring；7 test products；8 pressurized equipments；9 dielectric loss measurement units；1. the ground terminal of dielectric loss measurement unit；2. dielectric loss measurement unit
Test product terminal；3. the standard capacitance terminal of dielectric loss measurement unit.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with embodiment, but those skilled in the art
Member will be understood that the following example is merely to illustrate the utility model, and be not construed as limitation the scope of the utility model.
With reference to Fig. 1, the utility model provide it is a kind of can high-tension shielding high voltage standard capacitor, including cylindrical sealing
Insulating cylinder 1, the sealed insulation cylinder 1 are internally provided with first capacitor electrode 2, the second capacitance electrode 3 and bucking electrode 4；With
And the first capacitor electrode connection terminal 201 of described 1 one end of sealed insulation cylinder is stretched out, stretch out 1 other end of sealed insulation cylinder
The second capacitance electrode connecting terminal 301 and bucking electrode connecting terminal 401；The both ends of the sealed insulation cylinder 1 are respectively set
There are the first grading ring 5 and the second grading ring 6, first grading ring 5 and the second grading ring 6 are respectively as high voltage standard capacitor
Upright pedestal and handstand pedestal.First grading ring 5 and the second grading ring 6 respectively with first capacitor electrode 2, the second capacitance electrode
3 is corresponding, not only acts as the effect pressed, moreover it is possible to play the role of the entire high-voltage capacitor of support.
Wherein, the material of the first grading ring 5 and the second grading ring 6 is respectively stainless steel, is also possible to aluminium or other materials,
Guarantee that there is enough mechanical strengths can support entire high voltage standard capacitor for the first grading ring 5 and the second grading ring 6, thus
Substitute the function of the insulated leg of conventional high-pressure standard capacitor.In order to guarantee that the first grading ring 5 and the second grading ring 6 can prop up
Entire high voltage standard capacitor is supportted, the first grading ring 5 and the second grading ring 6 can also be designed as solid construction, to improve it
Mechanical strength.
In addition, the first grading ring 5 is identical with the shape of the second grading ring 6, so as to reduce entire high voltage standard capacitor
The volume of device, is convenient for carrying, and scene is suitble to use.
Specifically, the utility model additionally provides a kind of high voltage electric equipment dielectric loss measuring set with reference to Fig. 2, packet
Include pressurized equipment 8, dielectric loss measurement unit 9, it is above-mentioned can high-tension shielding high voltage standard capacitor and have the test product 7 of insulation over the ground,
In high-voltage radio measurement and fibre optic current sensor measurement method in use, using the positive mode of connection, specifically: by dielectric loss measurement
Unit is placed on the side of the second capacitance electrode of high voltage standard capacitor, first capacitor electrode connection terminal 201 and test product 7
High-voltage end simultaneously connects, and connect with the high-voltage end of pressurized equipment 8；Second capacitance electrode connecting terminal 301 and dielectric loss measurement unit
3. standard capacitance terminal connects；Bucking electrode connecting terminal 401 is grounded；1. the ground terminal of dielectric loss measurement unit is grounded, dielectric loss
2. the test product terminal of measuring unit is connect with the low-pressure end of test product 7.At this point, the second grading ring 6 is as high voltage standard capacitor
Upright pedestal, plays a supportive role, instead of the insulated leg of conventional high-pressure standard capacitor.
With reference to Fig. 3, the utility model additionally provides a kind of high voltage electric equipment dielectric loss measuring set, including pressurization is set
Standby 8, dielectric loss measurement unit 9, it is above-mentioned can high-tension shielding high voltage standard capacitor and the test product 7 of naked over the ground, high pressure without
When line measures, using reverse wiring mode, specifically: by the utility model can the high voltage standard capacitor of high-tension shielding be inverted,
And dielectric loss measurement unit is placed on to the side of the second capacitance electrode of high voltage standard capacitor, by first capacitor electrode terminal
Son 201 is grounded；3. second capacitance electrode connecting terminal 301 is connect with the standard capacitance terminal of dielectric loss measurement unit；Bucking electrode
1. connecting terminal 401 is connect with the ground terminal of dielectric loss measurement unit, the ground terminal of dielectric loss measurement unit 1. with pressurized equipment 8
High-voltage end connection；2. the test product terminal of dielectric loss measurement unit is connect with the high-voltage end of test product 7.At this point, 5 conduct of the first grading ring
The handstand pedestal of high voltage standard capacitor, plays a supportive role.
The utility model can high-tension shielding high voltage standard capacitor carry out high voltage electric equipment dielectric loss measurement
When, it is to obtain standard capacitance electric current, bucking current when not only eliminating measurement from the second capacitance electrode end of standard capacitor
Influence, while avoiding the influence due to insulated leg to standard capacitor own vol, carry application convenient for scene.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (6)
1. one kind can high-tension shielding high voltage standard capacitor, which is characterized in that including cylindrical sealed insulation cylinder (1), institute
That states sealed insulation cylinder (1) is internally provided with first capacitor electrode (2), the second capacitance electrode (3) and bucking electrode (4)；And
It is another to stretch out the sealed insulation cylinder (1) for the first capacitor electrode connection terminal (201) for stretching out described sealed insulation cylinder (1) one end
The second capacitance electrode connecting terminal (301) and bucking electrode connecting terminal (401) of one end；The two of the sealed insulation cylinder (1)
End is respectively arranged with the first grading ring (5) and the second grading ring (6), and first grading ring (5) and the second grading ring (6) are respectively
Upright pedestal and handstand pedestal as high voltage standard capacitor.
2. it is according to claim 1 can high-tension shielding high voltage standard capacitor, which is characterized in that first grading ring
(5) and the material of the second grading ring (6) is respectively stainless steel.
3. it is according to claim 1 can high-tension shielding high voltage standard capacitor, which is characterized in that first grading ring
(5) identical with the shape of the second grading ring (6).
4. it is according to claim 3 can high-tension shielding high voltage standard capacitor, which is characterized in that first grading ring
(5) and the second grading ring (6) is respectively solid grading ring.
5. a kind of high voltage electric equipment dielectric loss measuring set, which is characterized in that including pressurized equipment (8), dielectric loss measurement list
First (9), it is described in claim 1 can high-tension shielding high voltage standard capacitor and have the test product (7) of insulation over the ground, described first
The high-voltage end of capacitance electrode connecting terminal (201) and test product (7) simultaneously connects, and connect with the high-voltage end of pressurized equipment (8)；Described
Two capacitance electrode connecting terminals (301) are connect with the standard capacitance terminal of dielectric loss measurement unit (9)；The bucking electrode terminals
Sub (401) ground connection；The ground terminal ground of dielectric loss measurement unit (9), test product terminal and test product (7) of dielectric loss measurement unit (9)
Low-pressure end connection.
6. a kind of high voltage electric equipment dielectric loss measuring set, which is characterized in that including pressurized equipment (8), dielectric loss measurement list
First (9), it is described in claim 1 can high-tension shielding high voltage standard capacitor and the test product (7) of naked over the ground, described first
Capacitance electrode connecting terminal (201) ground connection；The mark of the second capacitance electrode connecting terminal (301) and dielectric loss measurement unit (9)
The connection of pseudo-capacitance terminal；The bucking electrode connecting terminal (401) connect with the ground terminal of dielectric loss measurement unit (9), dielectric loss
The ground terminal of measuring unit (9) is connect with the high-voltage end of pressurized equipment (8)；The test product terminal of dielectric loss measurement unit (9) and examination
The high-voltage end of product (7) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402658.5U CN208953591U (en) | 2018-08-29 | 2018-08-29 | A kind of high voltage standard capacitor and high voltage electric equipment dielectric loss measuring set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821402658.5U CN208953591U (en) | 2018-08-29 | 2018-08-29 | A kind of high voltage standard capacitor and high voltage electric equipment dielectric loss measuring set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953591U true CN208953591U (en) | 2019-06-07 |
Family
ID=66736196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821402658.5U Expired - Fee Related CN208953591U (en) | 2018-08-29 | 2018-08-29 | A kind of high voltage standard capacitor and high voltage electric equipment dielectric loss measuring set |
Country Status (1)
| Country | Link |
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| CN (1) | CN208953591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666506A (en) * | 2020-12-10 | 2021-04-16 | 中国电子技术标准化研究院 | On-chip capacitor standard sample for integrated circuit calibration |
-
2018
- 2018-08-29 CN CN201821402658.5U patent/CN208953591U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112666506A (en) * | 2020-12-10 | 2021-04-16 | 中国电子技术标准化研究院 | On-chip capacitor standard sample for integrated circuit calibration |
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|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190607 Termination date: 20210829 |