CN202282239U - Indoor current transformer - Google Patents

Indoor current transformer Download PDF

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Publication number
CN202282239U
CN202282239U CN2011203078762U CN201120307876U CN202282239U CN 202282239 U CN202282239 U CN 202282239U CN 2011203078762 U CN2011203078762 U CN 2011203078762U CN 201120307876 U CN201120307876 U CN 201120307876U CN 202282239 U CN202282239 U CN 202282239U
Authority
CN
China
Prior art keywords
secondary coil
casing
coil
current transformer
windings
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
Application number
CN2011203078762U
Other languages
Chinese (zh)
Inventor
滕元强
马玉洁
宁传仁
张传城
施晨沛
李文东
李鸿楠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd
Original Assignee
DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd filed Critical DALIAN HUAXIA TAIKE ELECTRICAL GROUP Co Ltd
Priority to CN2011203078762U priority Critical patent/CN202282239U/en
Application granted granted Critical
Publication of CN202282239U publication Critical patent/CN202282239U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an indoor current transformer which comprises a primary coil, a second coil and a casing, wherein two windings of the secondary coil are wound on an iron core; after the primary coil penetrates through the iron core, two ends of the primary coil are respectively connected with two primary winding boards positioned on the upper end face of the casing; the primary coil and two windings of the secondary coil are distributed according to the set position and are cast into an integral structure by using epoxy resin; an epoxy resin casting body is a casing; four secondary coil wiring terminals are arranged at the lower part on the outer wall of the casing; the two wings of the secondary coil and four leads are respectively connected with four corresponding secondary winding terminals; and the casing is fixedly arranged on a base plate through bolts. The indoor current transformer disclosed by the utility model has the advantages of long surface creepage distance, high secondary output capacity, favorable dynamic and thermal stable performances and the like.

Description

A kind of indoor current transformer
Technical field
The utility model relates to a kind of current transformer, specifically relates to a kind of big capacity current transformer of indoor application.
Background technology
A windings in series of current transformer is in power circuit, and the secondary winding external circuit of current transformer is connected to measuring instrument, instrument or relaying protection or automatic control equipment.At present commercially available current transformer exists that the surface creepage distance is less, the secondary output current capacity is less, and is moving, thermally-stabilised parameter is lower, can not satisfy some specific environments and use.
The utility model content
The purpose of the utility model provides a kind of good insulation preformance, the surface creepage distance is big, the secondary output current is big, the indoor application current transformer that move, thermal stability is good.
The technical scheme that adopts is:
A kind of indoor current transformer comprises primary winding, secondary coil and housing.
Two windings of secondary coil are wrapped on the secondary iron core; The two ends lead-in wire of primary winding is connected with two primary connection plates respectively; Four lead-in wires of two windings of secondary coil respectively be installed in the housing pedestal on the corresponding connection of four secondary coil binding posts.
Two windings of primary winding, secondary coil are through poured with epoxy resin structure in aggregates.This epoxy resin poured body is the current transformer housing, and through being bolted on the base plate.
The utility model is owing to isolate good insulation preformance, the pour mass good looking appearance of design with epoxy resin with the cast of first and second coil.Advantages such as in addition, it is big that the utility model also has the surface creepage distance, and the secondary output capacity is big and moving, that thermal stability is good.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is that cutaway view is looked on the left side of Fig. 1.
Fig. 3 is the schematic appearance of the utility model.
Embodiment
A kind of indoor current transformer comprises primary winding 2, secondary coil and housing 7, it is characterized in that:
Two windings 3,9 of secondary coil are wrapped in the iron core 4; After primary winding 2 passes iron core 4, its two ends respectively be positioned at housing 7 upper surfaces on two primary connection plates 1 be connected; Two windings 3,9 of primary winding 2, secondary coil are pressed desired location and are laid good back with poured with epoxy resin structure in aggregates, and wherein epoxy resin poured body is a housing 7, and four secondary coil binding posts 6 are arranged at these housing 7 bottoms.Four lead-in wires 5 of two windings 3,9 of secondary coil connect with corresponding four secondary coil binding posts 6 respectively, epoxy resin poured body, and promptly housing 7 is through being bolted on the base plate 8.

Claims (1)

1. an indoor application current transformer comprises primary winding (2), secondary coil and housing (7), it is characterized in that:
Two windings (3,9) of secondary coil are wrapped on the iron core (4); After primary winding (2) passes iron core (4), its two ends respectively be positioned at housing (7) upper surface on two primary connection plates (1) be connected; Two windings (3,9) of primary winding (2), secondary coil are pressed desired location and are laid good back with poured with epoxy resin structure in aggregates; Wherein epoxy resin poured body is housing (7); Four secondary coil binding posts (6) are arranged at housing (7) outer wall bottom, four lead-in wires (5) of two windings (3,9) of secondary coil; Connect with corresponding four secondary coil binding posts (6) respectively, housing (7) is through being bolted on the base plate (8).
CN2011203078762U 2011-08-23 2011-08-23 Indoor current transformer Expired - Fee Related CN202282239U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203078762U CN202282239U (en) 2011-08-23 2011-08-23 Indoor current transformer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203078762U CN202282239U (en) 2011-08-23 2011-08-23 Indoor current transformer

Publications (1)

Publication Number Publication Date
CN202282239U true CN202282239U (en) 2012-06-20

Family

ID=46228396

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203078762U Expired - Fee Related CN202282239U (en) 2011-08-23 2011-08-23 Indoor current transformer

Country Status (1)

Country Link
CN (1) CN202282239U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109119238A (en) * 2018-07-03 2019-01-01 大连第二互感器集团有限公司 A kind of current transformer and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109119238A (en) * 2018-07-03 2019-01-01 大连第二互感器集团有限公司 A kind of current transformer and preparation method thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120620

Termination date: 20170823

CF01 Termination of patent right due to non-payment of annual fee