CN105116192A - High-voltage coaxial type voltage divider low-voltage arm - Google Patents
High-voltage coaxial type voltage divider low-voltage arm Download PDFInfo
- Publication number
- CN105116192A CN105116192A CN201510618735.5A CN201510618735A CN105116192A CN 105116192 A CN105116192 A CN 105116192A CN 201510618735 A CN201510618735 A CN 201510618735A CN 105116192 A CN105116192 A CN 105116192A
- Authority
- CN
- China
- Prior art keywords
- resistance
- voltage
- voltage divider
- solid
- bonding conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a high-voltage coaxial type voltage divider low-voltage arm including a metal casing, a solid resistor, an insulation glass plate, a T-shaped connection conductor, and a cable seat, the end face positions of two symmetrical end faces of the solid resistor are respectively provided with resistance end caps, the connection conductor is arranged in the solid resistor along the axis, one end of the connection conductor is connected with a cable seat core, and the resistance end caps are connected with a cable seat casing. The other end in the solid resistor is provided with a step with a sink hole, a metal spring is arranged in the step, and the connection conductor is inserted into the spring to be connected with the resistance end cap at the other end. The technical problems of a voltage divider low-voltage arm in the prior art is thoroughly solved, the voltage divider low-voltage arm is standardized and is suitable for any voltage divider high-voltage arm matched with the voltage divider low-voltage arm in connection size, and even through the voltage divider low-voltage arm is replaced, same bandwidth and distribution parameters can be guaranteed. The structure is simple, and the installation and detachment are convenient.
Description
Technical field
The present invention relates to the voltage divider low-voltage arm be applied under high pressure Quick impulse voltage, be coaxially connected with voltage divider high-voltage arm the standardized test parts coordinating and form testing high voltage pulse voltage, especially the high pressure Quick impulse voltage of 300kV, more than 100MHz.
Background technology
The voltage divider low-voltage arm of usual testing high voltage Quick impulse voltage is made up of link (being connected with high-voltage arm resistance), O-ring seal (oil sealing), resistance pad and dozens of resistor coupled in parallel, middle leads, metal shell and cable block.When high-voltage pulse is by the feed-in of high-voltage arm resistance, through low-voltage arm earth terminal (metal shell), form loop.And the low-voltage arm on loop produces the Quick impulse voltage of kilovolt, and at the enterprising line item of oscillograph.But there is the technical matters of the following aspects in such constituted mode:
1) anti-interference problem: owing to often having a road or tens road effluve unit (hundreds of kilovolt) discharge over the ground under hyperbaric environment, can form the interference of stronger space, i.e. high frequency spurious electromagnetic waves.And make system in time uncontrollable or time series occur staggered phenomenon causing system works abnormal.
2) welding and power problem: resistance pad welds dozens of resistance form powerful resistance unit owing to being typically employed in, meet power requirement.But resistance quantity is large, the restriction of physical dimension, watt level and resistance welded position, rosin joint and solder skip may be there is when welding, under the long-term impact of the high pressure Quick impulse voltage of upper kilovolt, the phenomenon that resistance damages can be engendered, cause voltage amplitude to be forbidden or waveform distortion.
3) distributed parameter problem: weld on resistance pad dozens of resistance welded complete after resistance unit, discrete resistors just just forms fixed sturcture with metal shell, and form distribution parameter be also just fixed up.But can not ensure during dozens of resistance welded that resistance lead length, density degree, height are all not identical and add resistance profile individual difference, and the inductive impact that the middle leads of welding is brought, cause the resistance unit after each welding also not identical with the distribution parameter that metal shell is formed, thus cause the difference of measured waveform in frequency response, draw the result of distortion.
4) standardization issue: the result when difference due to distribution parameter causes voltage divider low-voltage arm to be measured same high pressure Quick impulse voltage is variant, and does not have interchangeability.
Summary of the invention
In order to overcome four technical barriers existing for common voltage divider low-voltage arm, the invention provides high voltage standardization coaxial-type voltage divider low-voltage arm, this voltage divider low-voltage arm not only solves problem on welding and power, also solves not identical, the anti-interference and standardized problem of voltage divider low-voltage arm of distribution parameter well.
The object of the invention is the defect and the deficiency that how to solve and overcome separate combination type voltage divider low-voltage arm, meet high-voltage pulse test problem under hundreds of kilovolt.
For achieving the above object, the present invention's following technical scheme:
A kind of high voltage coaxial-type voltage divider low-voltage arm, comprises metal shell, solid resistance, insulating glass plane, T-shaped bonding conductor and cable block,
Endface position on two end faces of described fixed resistance symmetry arranges resistance end cap respectively, in solid resistance, axial line is provided with bonding conductor, one end of bonding conductor is connected with cable block core, this resistance end cap stube cable seat core housing, the other end in solid resistance is provided with the step of a band counterbore, is provided with metal spring in step, and described bonding conductor inserts in spring, be connected with other end resistance end cap
The center of described insulating glass plane is provided with through hole, and the vertical end of T-shaped bonding conductor is through through hole and vertical end surfaces is provided with screw thread, by nut, T-shaped bonding conductor and insulating glass plane is connected to one,
Described T-shaped bonding conductor Heng Duan center is provided with threaded hole, and the resistance end cap of threaded hole and solid resistance band counterbore step one end connects as one,
Described metal shell is enclosed within solid resistance, and one end of metal shell contacts with insulating glass plane, forms seal cavity between metal shell and fixed resistance, insulating glass plane,
Described metal shell, solid resistance are coaxial configuration, the structure and metal shell is formed in one.
In technique scheme, described solid resistance adopts alumina porcelain to do matrix and makes, and described solid resistance power is not less than 1500W, and frequency response is not less than 100MHz, and resistance is not more than 0.12 Ω.
In technique scheme, between the resistance end cap of described solid resistance and resistance base body, adopt gilding isostatic pressed Hard link.
In technique scheme, surface of contact resistance infinite approach zero between described resistance end cap and resistance base body
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: when thoroughly solving the technical matters existing for voltage divider low-voltage arm, realize the standardization of voltage divider low-voltage arm, go for any voltage divider high-voltage arm being attached thereto size coupling, even if change voltage divider low-voltage arm also ensure the identical of its bandwidth sum distribution parameter, and structure is simple, easy installation and removal.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is structural representation of the present invention;
Wherein: 1 is metal shell, 2 is T-shaped bonding conductors, and 3 is cable blocks, and 4 is solid resistances, and 5 is springs, and 6 is bonding conductors, and 7 is nuts, and 8 is insulating glass planes.
Embodiment
As shown in Figure 1, the coaxial-type shielded metal shell that the present invention adopts design brand-new, adopts one-time-shaped mould to form integrative-structure, stops the impact of spatial electromagnetic ripple, solve the matching problem of wave impedance in its transmission with coaxial manner with less gap.
In the present invention, development and making are adapted at the solid resistance of high voltage (300kV), high-power (being greater than 1500W), high frequency sound (being greater than 100MHz), low resistance (0.12 Ω), adopt alumina porcelain to do matrix isostatic compaction high temperature plated film and coating film thickness equal control technique, improve and there is higher Joule heat self-absorption ability, higher unit length voltage endurance capability and impact resistance.Consider that solid resistance is connected with miscellaneous part, take be at resistance end cap with resistance base body be connected employing gilding isostatic pressed Hard link at two: one, make its surface of contact resistance close to zero, avoid causing local pyrexia change in resistance due to contact resistance and damaging resistance.Two is combine to design solid resistance end cap with external component connected mode.Finally will independently, powerful solid resistance, be arranged in coaxial-type metal shell, solve rosin joint, solder skip, power and the heat radiation of Joule heat and shock proof problem under high-voltage pulse effect; The design of resistance connected mode to solve between resistance and cable block distribution parameter to the impact of its Signal transmissions.Design a column type band counterbore step in resistance end cap internal end surface, inserted by one band little spring metallic conductor in its counterbore and form connection, within the metallic conductor other end, engagement thread is connected to the heart yearn end of cable block, forms the connection of resistance and cable block.This is designed with three advantages: one is solve the inductive impact that the lead-in wire in resistance endosome brings; Two is because solid resistance physical dimension is fixed, and also fix with the installation site of coaxial-type metal shell, the distribution parameter formed after installation is also just fixed up relatively, so the distribution parameter also solved between solid resistance outside and metal shell (high pressure ground) affects simultaneously, three is because the impact of distribution parameter is less, thus improve the high frequency characteristics of voltage divider low-voltage arm, ensure that the authenticity that high pressure fast pulse is measured.
Owing to thoroughly solving distribution parameter, Joule heat self-absorption ability, higher unit length voltage endurance capability and the series of problems such as impact resistance, shielding existing for voltage divider low-voltage arm.Just make to constitute high voltage standardization coaxial-type voltage divider low-voltage arm by coaxial-type shielded metal case, solid resistance, link etc.
Be embodied as: the first step, first by the through hole of the vertical end of T-shaped bonding conductor through insulating glass plane center, utilize nut by T-shaped bonding conductor and insulating glass plane being fixed as one tightly by the screw thread of the vertical end surfaces of T-shaped bonding conductor, need to ensure the good seal between T-shaped bonding conductor and insulating glass plane in fixation procedure.
Second step, cable block and solid resistance are arranged on the metal shell of coaxial-type, bonding conductor is connected with the heart yearn of cable block simultaneously, ensure in the spring that bonding conductor inserts in solid resistance simultaneously, bonding conductor is connected well with spring, cable block, solid resistance and bonding conductor are integrally formed.
3rd step, is screwed in the resistance end cap of solid resistance lower end in the threaded hole on T-shaped bonding conductor by threaded portion, makes insulating glass plane and metal shell close contact, guarantee that the space in metal shell is complete seal cavity, complete installation.
In the present invention, the lower end of the bonding conductor in solid resistance have employed spring and connects, in order that be squeezed in whole low-voltage arm and cushioned by the acting force of spring installing and using solid resistance in process, solid resistance is avoided to burst in extrusion process or damage.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (4)
1. a high voltage coaxial-type voltage divider low-voltage arm, is characterized in that comprising metal shell, solid resistance, insulating glass plane, T-shaped bonding conductor and cable block,
Endface position on two end faces of described fixed resistance symmetry arranges resistance end cap respectively, in solid resistance, axial line is provided with bonding conductor, one end of bonding conductor is connected with cable block core, this resistance end cap stube cable seat core housing, the other end in solid resistance is provided with the step of a band counterbore, is provided with metal spring in step, and described bonding conductor inserts in spring, be connected with other end resistance end cap
The center of described insulating glass plane is provided with through hole, and the vertical end of T-shaped bonding conductor is through through hole and vertical end surfaces is provided with screw thread, by nut, T-shaped bonding conductor and insulating glass plane is connected to one,
Described T-shaped bonding conductor Heng Duan center is provided with threaded hole, and the resistance end cap of threaded hole and solid resistance band counterbore step one end connects as one,
Described metal shell is enclosed within solid resistance, and one end of metal shell contacts with insulating glass plane, forms seal cavity between metal shell and fixed resistance, insulating glass plane,
Described metal shell, fixed resistance are coaxial configuration, the structure and metal shell is formed in one.
2. a kind of high voltage coaxial-type voltage divider low-voltage arm according to claim 1, it is characterized in that described solid resistance adopts alumina porcelain to do matrix and makes, described solid resistance power is not less than 1500W, and frequency response is not less than 100MHz, and resistance is not more than 0.12 Ω.
3. a kind of high voltage coaxial-type voltage divider low-voltage arm according to claim 1, is characterized in that adopting gilding isostatic pressed Hard link between the resistance end cap of described solid resistance and resistance base body.
4. a kind of high voltage coaxial-type voltage divider low-voltage arm according to claim 3, is characterized in that surface of contact resistance infinite approach zero between described resistance end cap and resistance base body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618735.5A CN105116192A (en) | 2015-09-25 | 2015-09-25 | High-voltage coaxial type voltage divider low-voltage arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510618735.5A CN105116192A (en) | 2015-09-25 | 2015-09-25 | High-voltage coaxial type voltage divider low-voltage arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105116192A true CN105116192A (en) | 2015-12-02 |
Family
ID=54664228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510618735.5A Pending CN105116192A (en) | 2015-09-25 | 2015-09-25 | High-voltage coaxial type voltage divider low-voltage arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105116192A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771461A (en) * | 2016-11-25 | 2017-05-31 | 国网冀北电力有限公司张家口供电公司 | For the divider of high-voltage electric-energy meter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236436A (en) * | 1997-05-09 | 1999-11-24 | 费尔腾和古伊勒奥梅股份公司 | Voltage detector for measurement and protection purpose for use in medium-voltage switch gear |
| CN103187159A (en) * | 2011-12-29 | 2013-07-03 | 大连第一互感器有限责任公司 | Gas-sealing and resistance-dividing voltage sensor |
| CN103762048A (en) * | 2013-12-25 | 2014-04-30 | 陕西华星电阻器有限公司 | Low voltage arm shield integrated resistor for high voltage pulse voltage divider |
| CN204065203U (en) * | 2014-09-05 | 2014-12-31 | 国家电网公司 | A kind of low-voltage arm of impacting with high pressure resitstance voltage divider |
| CN104820121A (en) * | 2015-05-22 | 2015-08-05 | 陈芳 | Electronic voltage transformer |
| CN205067568U (en) * | 2015-09-25 | 2016-03-02 | 中国工程物理研究院流体物理研究所 | High voltage coaxial -type divider hangs down pressure arm |
-
2015
- 2015-09-25 CN CN201510618735.5A patent/CN105116192A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236436A (en) * | 1997-05-09 | 1999-11-24 | 费尔腾和古伊勒奥梅股份公司 | Voltage detector for measurement and protection purpose for use in medium-voltage switch gear |
| CN103187159A (en) * | 2011-12-29 | 2013-07-03 | 大连第一互感器有限责任公司 | Gas-sealing and resistance-dividing voltage sensor |
| CN103762048A (en) * | 2013-12-25 | 2014-04-30 | 陕西华星电阻器有限公司 | Low voltage arm shield integrated resistor for high voltage pulse voltage divider |
| CN204065203U (en) * | 2014-09-05 | 2014-12-31 | 国家电网公司 | A kind of low-voltage arm of impacting with high pressure resitstance voltage divider |
| CN104820121A (en) * | 2015-05-22 | 2015-08-05 | 陈芳 | Electronic voltage transformer |
| CN205067568U (en) * | 2015-09-25 | 2016-03-02 | 中国工程物理研究院流体物理研究所 | High voltage coaxial -type divider hangs down pressure arm |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771461A (en) * | 2016-11-25 | 2017-05-31 | 国网冀北电力有限公司张家口供电公司 | For the divider of high-voltage electric-energy meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103926426A (en) | Broadband continuous-conductor coaxial fixture for material shielding effectiveness testing | |
| CN101847836B (en) | High-voltage device | |
| CN205067568U (en) | High voltage coaxial -type divider hangs down pressure arm | |
| CN102914708B (en) | Metal oxide test product is response characteristics testing device under steep pulse | |
| CN105116192A (en) | High-voltage coaxial type voltage divider low-voltage arm | |
| CN106324457B (en) | Withstand voltage testing device for insulating part | |
| CN102388514B (en) | Bushing for connecting gas insulated switchgear with air insulated switchgear | |
| CN105629142B (en) | For the built-in uhf sensor assembling structure of GIS partial discharge on-line monitoring | |
| CN103354316B (en) | Tuner isolation input socket | |
| CN207426345U (en) | Push-in type radio frequency (RF) coaxial connector | |
| CN105891555B (en) | A kind of more piece gradual change coaxial-type element high pressure fast pulse response test fixture | |
| CN103134956A (en) | Fixture used for testing soft roll battery electrical performance | |
| JP2021082582A (en) | High frequency terminal for high frequency connector and improvement method of signal integrity quality of male high frequency connector or high frequency plug-in connector | |
| CN110031789B (en) | Full-range calibration device and calibration method for high-voltage nanosecond pulse voltage divider scale factor | |
| CN207896297U (en) | A kind of elastomeric connector of soldering-free type test microstrip circuit | |
| CN106442634A (en) | Coaxial testing device-based field sensitive type electromagnetic pulse protection material testing method | |
| CN218768913U (en) | Inner cone insulator for routine test of C-GIS voltage transformer | |
| CN104953470A (en) | Gas spark gap switch for nanosecond pulse generator | |
| CN101916927B (en) | Metal sealing terminal plate | |
| CN202737221U (en) | Electrical connector with 14 cores | |
| CN103247854B (en) | Integrated electromagnetic pulse protection vehicle-mounted antenna | |
| CN204313786U (en) | Deformation of transformer winding test Special connecting device | |
| CN110031731B (en) | System and method for testing direct current breakdown of extruded insulated cable | |
| CN209282121U (en) | A kind of seepage-proof oil SF6Gas density relay | |
| CN206223729U (en) | Field sensitive type Spark gap material testing system based on coaxial test device |
Legal Events
| 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 |
Application publication date: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |