CN103456469A - Secondary connection terminal for high-voltage current (voltage) transformer - Google Patents
Secondary connection terminal for high-voltage current (voltage) transformer Download PDFInfo
- Publication number
- CN103456469A CN103456469A CN2013100079201A CN201310007920A CN103456469A CN 103456469 A CN103456469 A CN 103456469A CN 2013100079201 A CN2013100079201 A CN 2013100079201A CN 201310007920 A CN201310007920 A CN 201310007920A CN 103456469 A CN103456469 A CN 103456469A
- Authority
- CN
- China
- Prior art keywords
- voltage
- groove
- conducting rod
- connection terminal
- epoxy resin
- 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
Images
Abstract
The invention relates to a secondary connection terminal for a high-voltage current (voltage) transformer. The secondary connection terminal comprises an epoxy resin insulation board, a conducting rod insert with threads at the ends is embedded in the insulating board, at least two annular grooves are formed in the outer surface of the middle of the conducting rod insert with the threads at the ends, the bottom of each annular groove is arc-shaped, and a top end of each groove is a rounded corner. Since the rounded corners are formed at the top ends of the grooves, corner angles of the grooves are avoided, cracking due to stress concentration in the curing process after epoxy resin pouring is eliminated, and product quality is guaranteed.
Description
Technical field
The present invention relates to the secondary wiring terminals that a kind of instrument transformer is used, the secondary wiring terminals that especially high-tension current (voltage) instrument transformer is used.
Background technology
The secondary wiring terminals that high-tension current (voltage) instrument transformer is used is the mode that adopts poured with epoxy resin, brass conductive bar inserts and the epoxy resin insulation material of some are bonded together, in order to guarantee that conducting rod inserts and epoxy resin insulation material have enough adhesive strengths, avoid the conducting rod inserts to rotate in epoxy resin, be provided with two annular grooves on brass conductive bar inserts, to increase the bond area of inserts and epoxy resin.Find that in existing production process there is cracking phenomena at the bonding coating position of brass conductive inserts and epoxy resin material, thereby make Huang affect the reliability of conductive contact.By analyzing, the bottom surface that is annular groove is flat square, and the top of connected in star is due to wedge angle, because of in the cure shrinkage process of epoxy resin material because the principle of cure shrinkage can cause the groove edges and corners to exist stress to concentrate, after part solidifies, through after a while, property at parts of edges and corners stress discharges gradually, causes the epoxy resin cured product cracking phenomena occurring at this position, causes part to scrap.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of simple in structure, secondary wiring terminals that the reliable high-tension current of steady quality (voltage) instrument transformer is used.
Technical scheme of the present invention is such realization: the secondary wiring terminals that a kind of high-tension current (voltage) instrument transformer is used, comprise the epoxy resins insulation plate, be embedded with the screwed conducting rod inserts in end in insulation board, it is characterized in that: on the outer surface in the middle of the screwed conducting rod inserts in described end, have two annular grooves at least, the bottom of described annular groove is circular arc, and the groove top is fillet.
Described annular groove has four, and the arc radius of bottom portion of groove is 1.5mm.
The radius of described groove top fillet is 0.3-1 mm.
Described groove nose-circle angular radius is 0.5 mm.
The accompanying drawing explanation
Fig. 1 is the secondary wiring terminals structural representation that the prior art high-voltage mutual inductor is used.
Fig. 2 is the secondary wiring terminals structural representation that high-voltage mutual inductor of the present invention is used.
Embodiment
As shown in Figure 2, the secondary wiring terminals 1 that a kind of high-tension current (voltage) instrument transformer is used, comprise epoxy resins insulation plate 4, be embedded with end and be threaded 2 conducting rod inserts 3 in insulation board 4, four annular grooves 5 are arranged on conducting rod inserts 3, due to the increase of groove 5 quantity, increased the bond area of inserts and epoxy resin, thereby increased the adhesive strength of conducting rod inserts 3 with epoxy resins insulation plate 4; The bottom of described annular groove 5 is that circular arc, arc radius are 1.5 mm, and groove top 6 is 0.5 mm for fillet, radius of corner.Because the groove top has adopted fillet, avoided the appearance of groove corner angle, to have eliminated in the solidification process after the poured with epoxy resin, stress is concentrated and the phenomenon of cracking, has guaranteed product quality.
It should be noted that, above-described execution mode is to the explanation of technical solution of the present invention and unrestricted, other modification that is equal to replacement or makes according to prior art of person of an ordinary skill in the technical field is as long as no the thinking that exceeds technical solution of the present invention and scope, within all should being included in right of the presently claimed invention and scope.
Claims (4)
1. the secondary wiring terminals (1) that a high-tension current (voltage) instrument transformer is used, comprise epoxy resins insulation plate (4), be embedded with conducting rod inserts (3) that end is threaded (2) in insulation board (4), it is characterized in that: be threaded in described end on the outer surface in the middle of the conducting rod inserts (3) of (2) and have two annular grooves (5) at least, the bottom of described annular groove (5) is circular arc, and groove (5) top (6) is fillet.
2. the secondary wiring terminals (1) that high-tension current according to claim 1 (voltage) instrument transformer is used is characterized in that: described annular groove (5) has four, and the arc radius of groove (5) bottom is 1.5mm.
3. the secondary wiring terminals (1) that high-tension current according to claim 1 and 2 (voltage) instrument transformer is used is characterized in that: the radius of described groove (5) top (6) fillet is 0.3-1 mm.
4. the secondary wiring terminals (1) that high-tension current according to claim 3 (voltage) instrument transformer is used is characterized in that: described groove (5) top (6) radius of corner is 0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100079201A CN103456469A (en) | 2013-01-09 | 2013-01-09 | Secondary connection terminal for high-voltage current (voltage) transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100079201A CN103456469A (en) | 2013-01-09 | 2013-01-09 | Secondary connection terminal for high-voltage current (voltage) transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103456469A true CN103456469A (en) | 2013-12-18 |
Family
ID=49738736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100079201A Pending CN103456469A (en) | 2013-01-09 | 2013-01-09 | Secondary connection terminal for high-voltage current (voltage) transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103456469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201570A (en) * | 2014-09-05 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel American block insert |
| CN111842850A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Bimetal embedded insert for ductile iron dovetail groove |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670625A (en) * | 1984-07-24 | 1987-06-02 | Wood Henry S | Electrical insulating bushing with a weather-resistant sheath |
| CN201181615Y (en) * | 2008-01-25 | 2009-01-14 | 高调苹 | Insert |
| CN101859616A (en) * | 2009-04-09 | 2010-10-13 | 何愈 | Method for improving mechanical strength of insulation resin products |
| CN201690157U (en) * | 2010-04-23 | 2010-12-29 | 厦门大一互科技有限公司 | Wiring board of GIS switch cabinet |
| CN201773681U (en) * | 2010-09-17 | 2011-03-23 | 大连北方互感器集团有限公司 | Epoxy resin poured once conducting bar |
| CN203134526U (en) * | 2013-01-09 | 2013-08-14 | 平顶山市普汇电气有限责任公司 | Secondary wiring terminal for high-voltage current transformer |
-
2013
- 2013-01-09 CN CN2013100079201A patent/CN103456469A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670625A (en) * | 1984-07-24 | 1987-06-02 | Wood Henry S | Electrical insulating bushing with a weather-resistant sheath |
| CN201181615Y (en) * | 2008-01-25 | 2009-01-14 | 高调苹 | Insert |
| CN101859616A (en) * | 2009-04-09 | 2010-10-13 | 何愈 | Method for improving mechanical strength of insulation resin products |
| CN201690157U (en) * | 2010-04-23 | 2010-12-29 | 厦门大一互科技有限公司 | Wiring board of GIS switch cabinet |
| CN201773681U (en) * | 2010-09-17 | 2011-03-23 | 大连北方互感器集团有限公司 | Epoxy resin poured once conducting bar |
| CN203134526U (en) * | 2013-01-09 | 2013-08-14 | 平顶山市普汇电气有限责任公司 | Secondary wiring terminal for high-voltage current transformer |
Non-Patent Citations (1)
| Title |
|---|
| 张建宏等: "环氧树脂浇注件中内部应力产生的形状因素和防止措施", 《绝缘材料通讯》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201570A (en) * | 2014-09-05 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel American block insert |
| CN111842850A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Bimetal embedded insert for ductile iron dovetail groove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103456469A (en) | Secondary connection terminal for high-voltage current (voltage) transformer | |
| CN203134526U (en) | Secondary wiring terminal for high-voltage current transformer | |
| CN107546018B (en) | Three-phase combined type voltage transformer internal body with primary melting core | |
| CN201051417Y (en) | Low inductance stacking voltage bus bar | |
| CN203690088U (en) | Wiring terminal used for high-voltage transformer | |
| CN203787710U (en) | Laminated bus bar with flexible connection structure | |
| CN202662530U (en) | Insulated bearer for breaker | |
| CN204885482U (en) | Split type binding post in ammeter | |
| CN203135375U (en) | Cable terminal for 220kV high voltage switch equipment | |
| CN206225085U (en) | The ultra-high-voltage post composite insulator that gold utensil is connected with plug | |
| CN103680899A (en) | Connection terminal for voltage transformer | |
| CN207572305U (en) | A kind of inserts joint type insulated tension pole | |
| CN105185485A (en) | Novel composite insulator | |
| CN106847429A (en) | A kind of broadcast, the insulator of TV and communication equipment | |
| CN207217261U (en) | Current transformer | |
| CN207074594U (en) | A kind of aluminum hull electric power extension set | |
| CN205508429U (en) | High voltage spheric electrode | |
| CN206893372U (en) | A kind of broadcast, the insulator of TV and communication equipment | |
| CN205159555U (en) | Conducting rod for bus connector | |
| CN208970261U (en) | A kind of toroidal core inductance | |
| CN202282243U (en) | Current mutual inductor | |
| CN204088031U (en) | High-tension switch cabinet power transformer | |
| CN103457227A (en) | Cable terminal for 220 kV high voltage switch equipment | |
| CN208908410U (en) | The insulation connection structure of linear motor cylinder jacket | |
| CN203366976U (en) | Dry type voltage transformer for electric locomotive |
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: 20131218 |
|
| RJ01 | Rejection of invention patent application after publication |