CN2264405Y - Outdoor low voltage current mutual inductor - Google Patents
Outdoor low voltage current mutual inductor Download PDFInfo
- Publication number
- CN2264405Y CN2264405Y CN 95226768 CN95226768U CN2264405Y CN 2264405 Y CN2264405 Y CN 2264405Y CN 95226768 CN95226768 CN 95226768 CN 95226768 U CN95226768 U CN 95226768U CN 2264405 Y CN2264405 Y CN 2264405Y
- Authority
- CN
- China
- Prior art keywords
- mutual inductor
- current mutual
- voltage current
- low voltage
- outdoor low
- 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
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model relates to an outdoor low voltage current mutual inductor which can be used for measuring and protecting current in an outdoor electric distribution network. Compared with the existing indoor current mutual inductor, the outdoor low voltage current mutual inductor has the characteristics of rain prevention, sun prevention, aging prevention anddifficult damage. The outdoor low voltage current mutual inductor is characterized in that a casing is made of non magnetism conducting metal materials (such as aluminium alloy) and is favorable to preventing rain, sun and aging; the outdoor low voltage current mutual inductor is suitable for being used outdoors; a coil is arranged in the metallic casing and is poured by epoxy resin or other kinds of solidifiable insulated filling agent for fixing the coil and preventing the coil from being wetted. A wire connecting terminal is arranged at the concave point of the lower part of the casing or is sheathed with an insulated tube to be led out for preventing the wire connecting termina from being drench ed by rain and an outer short circuit.
Description
The utility model belongs to the low-voltage electrical apparatus field, is specifically related to a kind of outdoor type low-voltage current mutual inductor.
At present, the low-voltage current mutual inductor on the market, home and abroad is the indoor type current transformer.Generally constitute by iron core, coil, insulation crust and lead terminal.If this indoor type current transformer is directly with out of doors, its insulation crust through wind, Exposure to Sunlight, drenching with rain is easy to wear out, damage.The terminal that exposes is easy to influence its characteristic in the rain or because of other factor short circuits.
The purpose of this invention is to provide a kind of out of doors can safe operation be not afraid of wind, drench with rain, Exposure to Sunlight, non-damageable outdoor low voltage current transformer.
The structure of this product as shown in Figure 1.Form by (1-1), coil (1-2) unshakable in one's determination, leading-out terminal or lead-in wire (1-3), shell (1-4), insulation charges (1-5), fixing hole (1-6) etc.
Iron core and coil are determined according to current transformation ratio, load capacity and the precision of current transformer.
Lead-in wire is with placing the leading-out terminal of shell recess to draw or draw with age inhibiting insulated tube.
It is principal character of the present utility model that shell selects for use the metal material of non-magnetic conduction to make.The precision that it neither influences current transformer can seal again, and has rainproof, sun-proof, age inhibiting characteristics, also has stronger mechanical strength, is applicable to the open air.
The insulation charges are poured in the shell, play the effect of fixed coil, the insulating effect between shell and the coil and prevent the effect that coil makes moist.
Fig. 1 illustrates the example of outdoor type low-voltage current mutual inductor.Main method for production is as follows:
Earlier unshakable in one's determination and shell are packed in the aluminum alloy casing of die casting, and are welded in lead-in wire on the terminal or put insulating sleeve and draw, and then in shell casting epoxy resin.For example, a 600/5A, is used for the outdoor type current transformer of 400V electrical network, its external diameter Φ 100, internal diameter Φ 45, the about 0.5kg of weight by 1.0 grades.Lead passes endoporus when installing out of doors, and shell is fixed through fixing hole and support.
The outdoor type low-voltage current mutual inductor of said structure, make shell owing to adopt non-magnetic conductive metal material, sealing, rainproof, anti-sunlight function both can have been played, can not influence the characteristic of current transformer again, and simple in structure, lightly, not fragile, be convenient to install, be widely used in the outdoor low voltage power distribution network.
Claims (3)
1. one kind is used for outdoor low-voltage current mutual inductor, form by (1-1), coil (1-2) unshakable in one's determination, lead-in wire (1-3), shell (1-4), insulation charges (1-5) and fixing hole (1-6) etc., it is characterized in that outside iron core, shell and insulation charges, having installed the metal material shell additional.
2. outdoor type low-voltage current mutual inductor according to claim 1 it is characterized in that the metal material shell is to be made by non-magnetic metal material, and it can firmly connect with lead or support.
3. according to claim 1,2 described outdoor type current transformers, it is characterized in that its lead-in wire outsourcing insulated tube draws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226768 CN2264405Y (en) | 1995-11-29 | 1995-11-29 | Outdoor low voltage current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95226768 CN2264405Y (en) | 1995-11-29 | 1995-11-29 | Outdoor low voltage current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2264405Y true CN2264405Y (en) | 1997-10-08 |
Family
ID=33872833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95226768 Expired - Fee Related CN2264405Y (en) | 1995-11-29 | 1995-11-29 | Outdoor low voltage current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2264405Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352107C (en) * | 2002-02-23 | 2007-11-28 | 恩德莱斯和豪瑟尔两合公司 | Electrotechnical device |
| CN102074334A (en) * | 2010-12-06 | 2011-05-25 | 保定天威集团有限公司 | Current transformer iron core |
-
1995
- 1995-11-29 CN CN 95226768 patent/CN2264405Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100352107C (en) * | 2002-02-23 | 2007-11-28 | 恩德莱斯和豪瑟尔两合公司 | Electrotechnical device |
| CN102074334A (en) * | 2010-12-06 | 2011-05-25 | 保定天威集团有限公司 | Current transformer iron core |
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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 |