Unlock instant, AI-driven research and patent intelligence for your innovation.

Residual voltage detection circuit

A detection circuit and residual voltage technology, applied in the direction of measuring electrical variables, measuring devices, measuring current/voltage, etc., can solve the problem that the residual voltage detection circuit cannot continue to work, and achieve the effect of preventing long-term live working status

Active Publication Date: 2019-05-03
JIANGSU WISCOM TECHNOLOGY CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing residual voltage detection circuit can only be effectively detected when the power distribution terminal is charged. Although the circuit is simple, when the power distribution terminal is powered off, the residual voltage detection circuit cannot continue to work.

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
  • Residual voltage detection circuit
  • Residual voltage detection circuit
  • Residual voltage detection circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] A residual voltage detection circuit proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims.

[0031] see figure 1 , a residual voltage detection circuit, connected to the power distribution terminal, including an energy storage unit and a magnetic latching relay RELAY1; the magnetic latching relay RELAY1 includes a closing coil and a residual voltage signal output module, and the residual voltage signal output module responds to the closing coil Close the signal, close the switch in the residual voltage signal output module, and output the residual voltage detection signal. The energy storage unit is connected to the power distribution terminal. When the residual voltage detection circuit is working, the energy storage unit stores the power provided by the power distribut...

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 residual voltage detection circuit connected with a distribution terminal. The residual voltage detection circuit includes an energy storage unit and a magnetic latching relay, when the distribution terminal is out of power, electric energy is provided by the energy storage unit for suction of a closing coil, in response to a closing signal of the closing coil, a residualsignal output module closes a switch of the residual signal output module and outputs a residual voltage detection signal. The residual voltage detection circuit is advantaged in that a residual voltage signal can be detected without a live-line terminal.

Description

technical field [0001] The invention belongs to the field of residual voltage detection of distribution lines, in particular to a residual voltage detection circuit. Background technique [0002] When a permanent fault point occurs in the distribution line, the distribution terminal responds immediately to control the tripping of the circuit breaker or the pole-mounted switch, and after a certain period of time, the line recloses and starts. The characteristic shown is that there will be several cycles of fault voltage cycles, and then disappear, which is called residual voltage. After the power distribution terminal is opened, it should monitor whether there is a residual voltage signal in the line in real time. If it occurs, it should be blocked immediately to maintain the open state. [0003] The existing residual voltage detection circuit can only be effectively detected when the power distribution terminal is charged. Although the circuit is simple, when the power dist...

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): G01R19/00
Inventor 王其斌黄亮亮温彦军凌万水
Owner JIANGSU WISCOM TECHNOLOGY CO LTD