CN2164101Y - All-condition type current transformer - Google Patents
All-condition type current transformer Download PDFInfo
- Publication number
- CN2164101Y CN2164101Y CN 93219018 CN93219018U CN2164101Y CN 2164101 Y CN2164101 Y CN 2164101Y CN 93219018 CN93219018 CN 93219018 CN 93219018 U CN93219018 U CN 93219018U CN 2164101 Y CN2164101 Y CN 2164101Y
- Authority
- CN
- China
- Prior art keywords
- ring flange
- shell
- current transformer
- distance
- utility
- 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.)
- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to a be used as current transformer of high tension switchgear accessory. The utility model discloses directly regard as the mounting hole in with the nut embedding ring flange, avoided the installation back nut to expose, simultaneously, increased the distance of ring flange bottom surface and shell bottom to there is the skirt area at inner chamber top and shell top respectively, thereby increased the creepage distance, made its use under being fit for the full operating mode condition.
Description
The utility model relates to a kind of current transformer as the high-tension switch cabinet accessory.
Existing current transformer is made of shell, terminal block, contact and coil.Its outer casing underpart outside has one for the ring flange that installs and fixes usefulness, and installing hole is arranged on the ring flange; The outer casing underpart the inside is an inner chamber.This current transformer is because the installing hole on its shell ring flange is a through hole that supplies screw to pass, and screw and nut expose after installing, and creepage distance is shortened; In addition, the distance of ring flange bottom surface and shell bottom is less, has only about 24mm, makes creepage distance little, does not reach the requirement of using under full operating mode (humidity, condensation, the filth of the II level) condition.
The purpose of this utility model is that the shell that has current transformer is improved, and provides a kind of current transformer that is suitable for use under the full working condition, to overcome the existing shortcoming of above-mentioned prior art.
Measure of the present utility model is: 1. embed in the ring flange as installing hole with nut, and make its top insulation (sealing during casting); 2. the distance of ring flange bottom surface and shell bottom increases to 40～70mm.
Can also set up an opotism at interior top of chamber or cover top portion, with further increase creepage distance.
Below in conjunction with accompanying drawing the utility model is specified:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of terminal block part of Fig. 1 is to view.
Fig. 3 is the upward view of the utility model (Fig. 1).
Referring to figs. 1 through Fig. 3, the utility model is made of shell (1), terminal plate (2), contact (5) and coil. Coil is positioned at the shell upper the inside. Terminal plate (2) is positioned at cover top portion. The shell profile can be formed by the insulating resin casting for closely cylindrical. There is ring flange (3) the outer casing underpart outside, and installing hole is arranged on the ring flange (10), this installing hole embeds ring flange by nut and forms, its top insulation, normally during cast envelope together with the installing hole top seal. The distance c of ring flange (3) bottom surface and shell bottom (8) is 40～70mm. The outer casing underpart the inside is an inner chamber (4), and contact (5) is positioned at this inner cavity top; Inner chamber (4) top can add a circle opotism (7), increases creep age distance to advance one one. Shell waist one side has projection (6), and installation screw (9) is arranged on it, and the secondary line binding post can be positioned on this projection.
A kind of typical embodiment of the present utility model is as follows:
The distance c of the bottom surface of ring flange (3) and shell bottom (8) is 54mm, and a circle opotism (7) and (11) is arranged respectively at inner chamber (4) top and shell (1) top.All the other structures as previously described.
Current transformer of the present utility model is owing to directly embed nut in the shell ring flange as installing hole, and insulated in the installing hole top, rear nut and screw are installed not to be exposed, simultaneously, strengthened the distance of ring flange bottom surface and shell bottom, thereby increased creepage distance, made it be suitable for using under full operating mode (humidity, condensation, the filth of the II level) condition.When interior top of chamber and cover top portion are added with opotism, creepage distance further increases.The utility model product after testing, the portion index of closing meets under the full working condition requirement of using.Being suitable for the 10kv switch cubicle uses under full working condition.
Claims (4)
1, a kind of full operating mode type current transformer is made of shell (1), contact plate (2), contact (5) and coil; Coil is positioned at the shell upper the inside, and terminal block (2) is positioned at cover top portion; It is an inner chamber (4) that there are ring flange (3), the inside in the outer casing underpart outside, and contact (5) is positioned at this top of chamber; Installing hole (10) is arranged on the ring flange (3); Shell waist one side has a projection (6), and installing hole (9) is arranged on it; It is characterized in that ring flange installing hole (10) embeds ring flange by nut and forms, its top insulation; The distance c of ring flange (3) bottom surface and shell bottom (8) is 40～70mm.
2,, it is characterized in that an opotism (7) is arranged at inner chamber (4) top according to the described current transformer of claim 1.
3,, it is characterized in that a circle opotism (11) is arranged at shell (1) top according to claim 1 or 2 described current transformers.
4,, it is characterized in that the distance c of ring flange (3) bottom surface and shell bottom (8) is 54mm according to the described current transformer of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219018 CN2164101Y (en) | 1993-07-13 | 1993-07-13 | All-condition type current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219018 CN2164101Y (en) | 1993-07-13 | 1993-07-13 | All-condition type current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2164101Y true CN2164101Y (en) | 1994-05-04 |
Family
ID=33798528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219018 Expired - Fee Related CN2164101Y (en) | 1993-07-13 | 1993-07-13 | All-condition type current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2164101Y (en) |
-
1993
- 1993-07-13 CN CN 93219018 patent/CN2164101Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2164101Y (en) | All-condition type current transformer | |
| MY122281A (en) | Improved electrical bushings with resin casting | |
| CN2166506Y (en) | All-condition type current transformer | |
| CN2166543Y (en) | Full-working-condition contact box | |
| CN2169904Y (en) | Full-working-condition plateau type current transformer | |
| EP1202417A3 (en) | Gas-insulated switchgear | |
| DE50112163D1 (en) | Terminal cover for the terminals of a multiphase electrical switchgear | |
| CN219717248U (en) | Be used for partial discharge hyperfrequency to detect little loop antenna | |
| JP2001227442A (en) | Ignition coil with plug joint | |
| CN215007896U (en) | Primary connection structure of high-voltage side of mutual inductor | |
| CN2540018Y (en) | V-connection assembled voltage transformer with fuse | |
| CN2184998Y (en) | Full-working-condition contact box | |
| CN110797176A (en) | Mutual inductor with good waterproof performance | |
| CN219393096U (en) | Multifunctional current transformer shell for GIS | |
| CN212934323U (en) | Current transformer shell structure arranged in switch cabinet | |
| CN2501228Y (en) | Function combined current transformer set | |
| CN220401530U (en) | Motor with composite sealing structure | |
| CN221508034U (en) | Antifouling and corrosion-proof pole-mounted switch suitable for multi-disaster environment | |
| CN2393207Y (en) | Conductive rod for box-type transformer | |
| CN216871707U (en) | Support structure for mounting current transformer and molded case circuit breaker | |
| CN211828425U (en) | Current transformer and junction box thereof | |
| CN201340971Y (en) | Contact box applicable to 24KV high voltage switch cabinet | |
| CN215417960U (en) | Button device for automatic control box type transformer substation | |
| CN213183888U (en) | Oil-immersed transformer oil tank | |
| CN216956160U (en) | Electronic voltage sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |