CN-224217342-U - Current transformer

Abstract

The utility model discloses a current transformer which comprises a transformer shell embedded with a coil and a secondary wiring seat, wherein the secondary wiring seat comprises a mounting piece, a conducting strip embedded in the mounting piece, an O-shaped wire buckle and a locking screw, a short joint is arranged on the conducting strip in the sea, and a conducting strip extends out of the side and penetrates through the mounting piece to extend into the transformer body.

Inventors

• ZHAO JIAHAO
• SHA LUO
• CHEN MIAO
• XU KUNLE
• XIE ZHIHUA
• XU GUANGZHI
• Zhao guangdong
• HE PANPAN
• XU WENTAO
• WEI JING
• SONG HAOQIANG
• ZHANG ZHE
• WANG JIJIN
• ZHAO ANG
• YI SHENG
• LI XIAOHUI
• LIU KAIXIN
• LING SHANSHAN
• XU HAORAN

Assignees

• 河南许继仪表有限公司

Dates

Publication Date

20260508

Application Date

20250509

Claims (5)

1. 1. A current transformer comprises a transformer shell (1) with a coil embedded therein and a secondary wiring seat (2), and is characterized in that the secondary wiring seat (2) comprises a mounting piece (11), a conducting strip (12), an O-shaped wire buckle (13) and a locking screw (14) which are embedded in the mounting piece (11), a short joint (15) is arranged on the conducting strip (12) in the sea, and the conducting strip (12) extends out of a connecting sheet to the side and penetrates through the mounting piece (11) to extend into a transformer body.
2. 2. A current transformer according to claim 1, wherein the mounting member (11) is provided with an arc-shaped clamping groove (10), and the conductive sheet (12) is embedded and fixed in the arc-shaped clamping groove (10).
3. 3. A current transformer according to claim 1, wherein the O-shaped buckle (13) is provided with a threaded hole corresponding to a locking screw (14), and the end part of the locking screw (14) is abutted against the upper end surface of a conducting strip (12) penetrating through the O-shaped buckle (13).
4. 4. A current transformer according to claim 1, wherein the mounting member (11) has a lifting groove (16) therein which is larger than the O-shaped button (13).
5. 5. The current transformer according to claim 1, wherein the transformer housing (1) comprises two side shells arranged in a mirror image mode, coil grooves are formed in the side shells, supporting portions (18) and buckling structures (17) used for buckling the two side shells relatively are arranged on the outer side faces of the side shells, locking screws (19) are in threaded fit with the supporting portions (18), and the locking screws (19) are arranged opposite to cable through holes of the transformer housing (1).

Description

Current transformer Technical Field The utility model relates to the technical field of electricity, in particular to a current transformer. Background The current transformer is a current conversion device, has the dual functions of current conversion and isolation, converts large current of a high-voltage circuit or a low-voltage circuit into low-voltage small current, and provides the low-voltage small current for the instrument and the relay protection device to realize the functions of measurement, metering, protection and the like. The prior art discloses a current transformer, and it includes the current transformer body, has secondary binding post seat structure on the current transformer body, but current secondary binding post seat and mutual inductor casing directly constitute, and the conducting strip directly stretches out outside the mutual inductor casing, and secondary binding post exposes in the external world to the mode wiring of general adoption wire winding locking is also comparatively troublesome. Disclosure of utility model The utility model aims to provide a simple current transformer which has a simple assembly structure, is convenient to assemble and maintain, and meets the use requirement of the current transformer. The technical scheme includes that the current transformer comprises a transformer shell with a coil embedded therein and a secondary wiring seat, wherein the secondary wiring seat comprises a mounting piece, a conducting plate embedded in the mounting piece, an O-shaped wire buckle and a locking screw, a short connector is arranged on the conducting plate in the sea, and a lateral extending tab of the conducting plate penetrates through the mounting piece and extends into the transformer body. As a further arrangement of the scheme, an arc-shaped clamping groove is formed in the mounting piece, and the conducting strip is embedded and fixed in the arc-shaped clamping groove. As a further arrangement of the scheme, the O-shaped wire buckle is provided with a threaded hole corresponding to the locking screw, and the end part of the locking screw is abutted against the upper end surface of the conducting strip penetrating through the O-shaped wire buckle. As a further arrangement of the scheme, the mounting piece is internally provided with a lifting groove which is larger than the O-shaped line buckle in size. As the further setting of above-mentioned scheme, the mutual-inductor casing includes that the mirror image sets up two side shells, be equipped with the coil groove in the side shells, be equipped with supporting part and be used for two the lateral surface of side shells the buckle structure of the relative lock of side shells, supporting part screw thread fit has locking screw, the locking screw is just to the cable via hole setting of mutual-inductor casing. The current transformer has the beneficial effects that the current transformer is used for measuring high-voltage cables, the main body structure is simple and practical, the secondary wiring structure is reasonable in design, the cable groove has various shapes for measuring more comprehensively, and the current transformer is suitable for measuring and using various cable currents and other various data. Drawings Fig. 1 is a schematic diagram of a current transformer according to the present utility model. Fig. 2 is a schematic diagram of internal parts of the transformer according to the present embodiment. Reference numeral 1, a transformer shell; 10, an arc clamping groove, 11, a mounting piece, 12, a conducting strip, 13, an O-shaped wire buckle, 14, a locking screw, 15, a short joint, 16, a lifting groove, 17, a clamping structure, 18, a supporting part, 19, a locking screw rod, 2 and a secondary wire holder. Detailed Description In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, the embodiments of the present utility model and the features in the embodiments may be combined with each other without collision. The current transformer shown in fig. 1-2 comprises a transformer shell 1 embedded with coils and a secondary wiring seat 2, wherein the transformer shell 1 in the embodiment shown in fig. 1 forms an annular structure, a measuring coil is embedded in the transformer shell 1, the secondary wiring seat 2 is arranged on the transformer shell 1 and comprises a mounting piece 11, a conducting strip 12 embedded in the mounting piece 11, an O-shaped wire buckle 13 and a locking screw 14, the conducting strip 12 is provided with a short joint 15 in the sea, the short joints 15 of the conducting strips 12 on two sides can be stretched into from the upper end through conducting materials when needed, the quick connection and installation are realized, the conducting strip 12 i