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

Portable current transformer polarity tester

A technology of current transformer and tester, which is applied in the direction of electric winding testing, instrumentation, and measuring electricity. cutting, stable performance, and large capacity

Inactive Publication Date: 2016-08-10
XINING POWER SUPPLY CO OF STATE GRID QINGHAI ELECTRIC POWER CO +2
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are still many problems in this test method, such as the phenomenon of poor contact when clicking the primary winding of the current transformer with a dry battery during the test, the phenomenon that the mA meter of the secondary winding is easily damaged, and the problem of inconvenient handling on site, etc.

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
  • Portable current transformer polarity tester
  • Portable current transformer polarity tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Embodiment 1, a portable current transformer polarity tester, is characterized in that: the tester (1) is provided with a power socket (2), and the power socket (2) is connected to the bottom edge of the tester (1). The storage battery (3) is connected through wires, the storage battery (3) is connected with the DC constant voltage source (4), and the positive electrode of the DC constant voltage source (4) is positively connected with the switch (10), the indicator light (11) and the voltage output terminal through the wire. The positive pole of the ammeter (5) is connected to the positive pole socket A (7) of the current test terminal. The negative pole of (5) is connected to the negative pole socket A (6) of the current test terminal.

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 provides a portable current transformer polarity tester, and relates to the field of electric power construction equipment detection. The portable current transformer polarity tester is structurally characterized in that the tester (1) is provided with a power source socket (2), the power source socket (2) is connected with a storage battery (3), which is arranged at a bottom edge of the tester (1), through a wire, the storage battery (3) is connected with a DC constant voltage source (4), an anode of the DC constant voltage source (4) is sequentially connected with a switch (10), an indicator lamp (11) and an anode socket B (9) of a voltage output end through a wire, a cathode of the DC constant voltage source (4) is connected with a cathode socket B (8) of the voltage output end through a wire, an anode of an ammeter (5) is connected with an anode socket A (7) of a current test end, and a cathode of the ammeter (5) is connected with a cathode socket A (6) of the current test end.

Description

1. Technical field [0001] The invention relates to the field of detection of electric power construction equipment, in particular to a portable current transformer polarity tester. 2. Background technology [0002] At present, the current transformer polarity detection technology has become mature, but the existing detection technology has certain disadvantages in the use method and the size of the instrument. For example, the detection method is cumbersome, and it cannot be applied to the polarity test of the installed current transformer, etc., and the existing testers in the market are large in size, which is very inconvenient to use on site. In addition, statistics show that many testers need an external 220V power supply, and it is very cumbersome to connect the power supply at the construction site. After investigation, it was found that the municipal companies under the Qinghai Provincial Electric Power Company used dry batteries as the voltage source when testing th...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/06
CPCG01R31/72
Inventor 朱宁王志鹏范广勤周炜马宇驰严文付江刘志刚毛艺张锋李垚焦亚琴王鹏
Owner XINING POWER SUPPLY CO OF STATE GRID QINGHAI ELECTRIC POWER CO
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