Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-voltage zero-sequence current transformer convenient to mount

A zero-sequence current and transformer technology, which is applied in the direction of inductors, transformers, transformer/inductance components, etc., can solve the problems of application and promotion restrictions, and achieve the effects of ensuring stability, reliability, firmness, strength, and ease of installation

Inactive Publication Date: 2016-08-17
申清章
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing zero-sequence current transformers are installed by means of flange installation or bonding. The installation location generally needs to be reserved, so its application and promotion are more restricted.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-voltage zero-sequence current transformer convenient to mount
  • High-voltage zero-sequence current transformer convenient to mount
  • High-voltage zero-sequence current transformer convenient to mount

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0022] This embodiment is an easy-to-install high-voltage zero-sequence current transformer, see Figure 1 to Figure 9 As shown, it includes a base pipe 1, a core pipe 2, a set of pressing jaw assembly 3, a flat nut 4 and a current transformer 9;

[0023] The inner peripheral wall of the base pipe is provided with three crimping bosses 11 along the axial direction of the base pipe, and the inner wall of each crimping boss is provided with an arc-shaped groove 111; the inner peripheral wall of the base pipe is also provided with four positioning slides along the axial direction of the substrate Groove 12; the outer peripheral wall of the core tube is provided with four supporting convex plates 21 protruding radially along the base tube, and the outer end of each supporting convex plate is located in a corresponding positioning chute, so that the core tube is supported and positioned on the base tube. In the lumen of the tube; the core tube and the base tube are concentrically a...

Embodiment 2）

[0034] This embodiment is basically the same as Embodiment 1, the difference is: see Figure 10 to Figure 12As shown, the current transformer 9 in this embodiment includes an annular induction body 91 and an intelligent control module 92; the overall shape of the intelligent control module is also annular; the annular induction body 91 and the intelligent control module 92 are set side by side on the outer peripheral wall of the base pipe superior.

[0035] The base pipe 1 is provided with a mounting screw hole 15 radially penetrating through the wall of the base pipe; a temperature sensing device 8 is fixed in the mounting screw hole.

[0036] The temperature sensing device 8 includes a metal housing 81 made of metal material with a containing groove 811, a temperature sensor 82 arranged in the containing groove, and a spring 83 for crimping the temperature sensor on the bottom wall of the containing groove , The screw pipe plug 84 that is used for limit spring.

[0037] On...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a high-voltage zero-sequence current transformer convenient to mount. The high-voltage zero-sequence current transformer convenient to mount comprises a base tube, a core tube, a press claw assembly, a flat nut and a current transformer, wherein the base tube is sleeved with the current transformer; three crimping bosses are arranged on the inner peripheral wall of the base tube, and three radial limit slide openings are formed in the core tube; the press claw assembly comprises three press claws, and each press claw comprises a press plate part and a drive thread part; each press plate part and the corresponding crimping boss are clamped to form a cable clamping hole, and three cable clamping holes are formed by the press claw assembly and the three crimping bosses jointly; the flat nut is rotationally arranged in a cavity of the core tube and comprises flat thread parts meshed with the drive thread parts of the press claws; a mounting screw hole where a temperature sensing device is arranged is formed in the base tube. The high-voltage zero-sequence current transformer convenient to mount has an excellent anti-loosening effect.

Description

technical field [0001] The invention belongs to the technical field of electric power, and in particular relates to a high-voltage zero-sequence current transformer which is easy to install. Background technique [0002] The basic principle of zero-sequence current protection is based on Kirchhoff's current law: the algebraic sum of the complex current flowing into any node in the circuit is equal to zero. When the line and electrical equipment are normal, the vector sum of the currents of each phase is equal to zero. Therefore, the secondary side winding of the zero-sequence current transformer has no signal output, and the actuator does not operate. When an electric shock or leakage fault occurs, the vector sum of the currents of each phase is not zero, and the fault current causes magnetic flux in the iron core of the zero-sequence current transformer, and the current generated by the zero-sequence current transformer is the zero-sequence current. When the protection mec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01F27/06H01F38/30H01F27/40H02G7/04F16L3/10G01K7/22
CPCH01F27/06F16L3/10G01K7/22H01F27/402H01F38/30H01F2027/406H02G7/04
Inventor 申清章
Owner 申清章
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com