CN209641511U - A kind of current transformer preventing suspended voltage - Google Patents

A kind of current transformer preventing suspended voltage Download PDF

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Publication number
CN209641511U
CN209641511U CN201920650174.0U CN201920650174U CN209641511U CN 209641511 U CN209641511 U CN 209641511U CN 201920650174 U CN201920650174 U CN 201920650174U CN 209641511 U CN209641511 U CN 209641511U
Authority
CN
China
Prior art keywords
wire clamp
current transformer
contact tube
iron core
shell
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
CN201920650174.0U
Other languages
Chinese (zh)
Inventor
李侠
刘志
杨延顺
周蒙
马春明
李鹏
王为
蔺喜迎
陈景昆
郑银侠
李智明
黄婕
王建伟
刘瑞清
张磊
康凤霞
魏六甲
孙嘉宁
张静
王月
杨心怡
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.)
Xianyang Electric Co Of Guo Wang Shaanxi Prov Power Co
Original Assignee
Xianyang Electric Co Of Guo Wang Shaanxi Prov Power Co
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 Xianyang Electric Co Of Guo Wang Shaanxi Prov Power Co filed Critical Xianyang Electric Co Of Guo Wang Shaanxi Prov Power Co
Priority to CN201920650174.0U priority Critical patent/CN209641511U/en
Application granted granted Critical
Publication of CN209641511U publication Critical patent/CN209641511U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

It is easy to use the purpose of this utility model is to provide a kind of structure is simple, there is the current transformer for preventing suspended voltage, including shell, iron core, secondary winding, contact tube;The iron core is set to the enclosure interior, the secondary winding is set around the iron core, the contact tube is arranged in the iron core, the both ends of the contact tube are through to the hull outside, the both ends of the contact tube axially offer blind hole, conducting rod is detachably installed in the blind hole, the first wire clamp is respectively arranged on two conducting rods, second wire clamp, the two sides of the contact tube are respectively arranged with the second wire clamp, third wire clamp, copper whip is connected between first wire clamp and the second wire clamp, copper whip is connected between the third wire clamp and the 4th wire clamp, the bottom of the shell is provided with porcelain insulator, flange is provided between the shell and the porcelain insulator, the bottom of the porcelain insulator is provided with pedestal.

Description

A kind of current transformer preventing suspended voltage
Technical field
The utility model relates to field of electrical equipment, specifically a kind of current transformer for preventing suspended voltage.
Background technique
Current Mutual Inductance is the instrument that primary side high current is converted into secondary side low current according to electromagnetic induction principle to measure Device.Current transformer includes conduction rod, contact tube, wire clamp, secondary insulating part and electrical component, insulated porcelain sleeve, SF gas, valve Door and signal density relay, the effect of current transformer and main member component part are in electric network composition and substation In equipment connection, the effect of current transformer is the main communication gear for protecting electrical equipment safe operation, it can be by certainly The apportionment ratio of body element completes the protective effect in equipment circuit, and can ensure the reliability of electrical equipment safe operation.
Current transformer mostly uses series-parallel mode to access in circuit, when current transformer is accessed by the way of in parallel When, suspended voltage can be generated between conduction rod and contact tube, suspended voltage will lead to contact tube damage, to influence entire circuit The operation of system.
Utility model content
It is easy to use the purpose of this utility model is to provide a kind of structure is simple, have and prevents suspended voltage Current transformer, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions:
A kind of current transformer preventing suspended voltage, including shell, iron core, secondary winding, contact tube, the iron Core is set to the enclosure interior, and the secondary winding is set around the iron core, and the contact tube is arranged in the iron core, described The both ends of contact tube are through to the hull outside, and the both ends of the contact tube axially offer blind hole, can in the blind hole Disassembly is equipped with conducting rod, and the first wire clamp, the second wire clamp, the two sides of the contact tube are respectively arranged on two conducting rods It is respectively arranged with the second wire clamp, third wire clamp, copper whip, the third wire clamp are connected between first wire clamp and the second wire clamp Copper whip is connected between the 4th wire clamp.
As a further solution of the present invention: the bottom of the shell is provided with porcelain insulator, the shell and institute It states and is provided with flange between porcelain insulator, the bottom of the porcelain insulator is provided with pedestal, and secondary connect is embedded on the pedestal Line terminals, the both ends of the secondary winding pass through the porcelain insulator and connect with the secondary wiring terminals.
The inside of the porcelain insulator axially opens up cavity, the cavity as a further solution of the present invention, It is inside provided with shielding case, the both ends of the secondary winding are arranged in the shielding case.
Isolated insulation is provided between the iron core and the contact tube as a further solution of the present invention, Layer.
The both ends of the shell are provided with end cap as a further solution of the present invention, open up on the end cap There is the through-hole for passing through for the contact tube.
Conductive plate is connected between second wire clamp and the 4th wire clamp as a further solution of the present invention,.
It as a further solution of the present invention, further include the shield for blocking the blind hole.
Compared with prior art, the utility model has the beneficial effects that
This utility structure is simple, easy to use, when current transformer series connection in circuit when, by copper whip by First Line Folder, the connection of the second wire clamp, and third wire clamp and the 4th wire clamp are connected, to realize the connection of a turning part, it is ensured that therefore The same current potential of two end terminals when hindering electric current.To solve the suspended voltage that the insulated part caused due to line fault generates.
When current transformer parallel connection in circuit when, by conducting rod, conductive plate remove, shield is plugged in blind hole, To avoiding generating suspended voltage between adjacent wire clamp, shield can play good dust-proof, rain-proof, anti-toy is nested Purpose, ensure that electric system operates normally, while the appearance of equipment being made to keep clean and tidy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for preventing the current transformer of suspended voltage;
Fig. 2 is the shield scheme of installation for preventing the current transformer of suspended voltage;
Fig. 3 is the scheme of installation of conducting rod in the current transformer for prevent suspended voltage;
Fig. 4 is the structural schematic diagram of end cap in the current transformer for prevent suspended voltage;
In figure: shell 1, flange 2, porcelain insulator 3, pedestal 4, secondary wiring terminals 5, contact tube 6, conducting rod 7, First Line Press from both sides the 8, second wire clamp 9, third wire clamp 10, the 4th wire clamp 11, conductive plate 12, blind hole 13, end cap 14, iron core 15, secondary winding 16, Isolated insulation layer 17, shield 18, shielding case 19, copper whip 20.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~4, in the utility model embodiment, a kind of current transformer preventing suspended voltage, including Shell 1, iron core 15, secondary winding 16, contact tube 6, the iron core 16 are set to inside the shell 1, the secondary winding 16 It is set around the iron core 16, the contact tube 6 is arranged in the iron core 16, and the both ends of the contact tube 6 are through to the shell 1 Outside, the both ends of the contact tube 6 axially offer blind hole 13, are detachably equipped with conducting rod 7 in the blind hole 13, and two The first wire clamp 8, the second wire clamp 11 are respectively arranged on the conducting rod 7, the two sides of the contact tube 6 are respectively arranged with the second line 9, third wire clamp 10 are pressed from both sides, copper whip 20, the third wire clamp 10 and the 4th are connected between first wire clamp 8 and the second wire clamp 9 Copper whip 20 is connected between wire clamp 11, the bottom of the shell 1 is provided with porcelain insulator 3, the shell 1 and the porcelain insulator Flange 2 is provided between 3, the bottom of the porcelain insulator 3 is provided with pedestal 4, is embedded with secondary wiring terminals on the pedestal 4 5, the both ends of the secondary winding 16 pass through the porcelain insulator 3 and connects with the secondary wiring terminals 5, the iron core 15 and Isolated insulation layer 17 is provided between the contact tube 6.
In order to improve the insulating properties of secondary winding, the inside of the porcelain insulator 3 axially opens up cavity, sets in the cavity It is equipped with shielding case 19, the both ends of the secondary winding 16 are arranged in the shielding case 19.
For the ease of the maintenance of current transformer, the both ends of the shell 1 are provided with end cap 14, open up on the end cap 14 There is the through-hole for passing through for the contact tube 6.
In order to ensure the same current potential of two end terminals when fault current, connected between second wire clamp 9 and the 4th wire clamp 11 There is conductive plate 12.
It is dust-proof in realization blind hole after being removed for conducting rod, it further include the shield 18 for blocking the blind hole 13.
The working principle of the utility model is:
When current transformer is connected in circuit, the bus of circuit is connected with the first wire clamp 8, third wire clamp 10 respectively It connects, first wire clamp 8, the second wire clamp 9 is connected, and third wire clamp 10 and the 4th wire clamp 11 connected by copper whip 20, thus real The connection of an existing turning part, it is ensured that the same current potential of two end terminals when fault current.To solve since line fault is drawn The suspended voltage that the insulated part of hair generates.
When current transformer parallel connection in circuit when, conducting rod 7, conductive plate 12 are removed, the device removed is properly protected Pipe, the bus of circuit is connect with the second wire clamp 9, third wire clamp 10 respectively, and shield 18 is plugged in blind hole 13, thus It avoids generating suspended voltage between adjacent wire clamp, shield 18 can play good dust-proof, rain-proof, anti-toy is nested Purpose ensures that electric system operates normally, while the appearance of equipment being made to keep clean and tidy.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (7)

1. a kind of current transformer for preventing suspended voltage, including shell (1), iron core (15), secondary winding (16), conduction It manages (6), the iron core (15) is set to the shell (1) inside, and the secondary winding (16) is set around the iron core (15), institute It states contact tube (6) to be arranged in the iron core (15), the both ends of the contact tube (6) are through to the shell (1) outside, feature Be: the both ends of the contact tube (6) axially offer blind hole (13), are detachably equipped with conducting rod in the blind hole (13) (7), the first wire clamp (8), the second wire clamp (9), the two sides of the contact tube (6) are respectively arranged on two conducting rods (7) It is respectively arranged with the second wire clamp (9), third wire clamp (10), is connected with copper whip between first wire clamp (8) and the second wire clamp (9) (20), copper whip (20) are connected between the third wire clamp (10) and the 4th wire clamp (11).
2. the current transformer according to claim 1 for preventing suspended voltage, it is characterised in that: the shell (1) Bottom be provided with porcelain insulator (3), be provided between the shell (1) and the porcelain insulator (3) flange (2), it is described absolutely The bottom of edge porcelain vase (3) is provided with pedestal (4), is embedded with secondary wiring terminals (5), the secondary winding on the pedestal (4) (16) both ends pass through the porcelain insulator (3) and connect with the secondary wiring terminals (5).
3. the current transformer according to claim 2 for preventing suspended voltage, it is characterised in that: the porcelain insulator (3) inside axially opens up cavity, is provided in the cavity shielding case (19), and the both ends of the secondary winding (16) are arranged in The shielding case (19).
4. the current transformer according to claim 1 for preventing suspended voltage, it is characterised in that: the iron core (15) Isolated insulation layer (17) are provided between the contact tube (6).
5. the current transformer according to claim 1 for preventing suspended voltage, it is characterised in that: the shell (1) Both ends be provided with end cap (14), the through-hole for passing through for the contact tube (6) is offered on the end cap (14).
6. the current transformer according to claim 1 for preventing suspended voltage, it is characterised in that: second wire clamp (9) conductive plate (12) are connected between the 4th wire clamp (11).
7. the current transformer according to claim 1 for preventing suspended voltage, it is characterised in that: further include for sealing Block up the shield (18) of the blind hole (13).
CN201920650174.0U 2019-05-08 2019-05-08 A kind of current transformer preventing suspended voltage Expired - Fee Related CN209641511U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920650174.0U CN209641511U (en) 2019-05-08 2019-05-08 A kind of current transformer preventing suspended voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920650174.0U CN209641511U (en) 2019-05-08 2019-05-08 A kind of current transformer preventing suspended voltage

Publications (1)

Publication Number Publication Date
CN209641511U true CN209641511U (en) 2019-11-15

Family

ID=68498269

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920650174.0U Expired - Fee Related CN209641511U (en) 2019-05-08 2019-05-08 A kind of current transformer preventing suspended voltage

Country Status (1)

Country Link
CN (1) CN209641511U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112630696A (en) * 2020-12-07 2021-04-09 广西电网有限责任公司电力科学研究院 Capacitive screen coupling simulation testing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112630696A (en) * 2020-12-07 2021-04-09 广西电网有限责任公司电力科学研究院 Capacitive screen coupling simulation testing device
CN112630696B (en) * 2020-12-07 2022-09-09 广西电网有限责任公司电力科学研究院 Capacitive screen coupling simulation testing device

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191115

Termination date: 20200508