Supercharge Your Innovation With Domain-Expert AI Agents!

A Redundant AC Power Automatic Switching Method

A technology of automatic switching and AC power supply, which is applied in the direction of emergency power supply arrangements, electrical components, circuit devices, etc., and can solve problems such as insufficient consideration of power supply redundancy, failure to perform redundant switching, endangering driving safety or production safety, etc. Reliable performance, low cost, simple implementation scheme

Active Publication Date: 2016-08-17
HENAN SPLENDOR SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in practice, due to insufficient consideration of the power supply redundancy method, when the UPS power supply fails, the due redundancy switchover often occurs.
Cause computer interlocking or microcomputer monitoring system to cause accidents that endanger driving safety or production safety, resulting in serious consequences

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
  • A Redundant AC Power Automatic Switching Method
  • A Redundant AC Power Automatic Switching Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] See figure 1 In the redundant AC power automatic switching method of this embodiment, an online UPS power supply is connected to the mains power supply line to achieve redundant power supply. When the mains power fails, the AC contactor KC is used to realize the state of using the online UPS power supply to supply power Switching, the phase line and the neutral line of the mains are respectively connected to the drive coil of the AC contactor KC and the input end of a set of normally open contacts, and the output end of the set of normally open contacts of the AC contactor KC is the device Power supply output terminal; the phase and neutral lines of the output terminal of the online UPS power supply are correspondingly connected to the input terminals of a group of normally closed contacts corresponding to the AC contactor, and the normally closed contacts of the same group of AC contactors, The output terminal of the normally open contact is correspondingly connected.

[...

Embodiment 2

[0020] See figure 1 , The redundant AC power automatic switching method of this embodiment adopts two online UPS power supplies to provide AC 220V working power to the system. UPSA and UPSB automatically switch and output a redundant shared power supply through the AC contactor KC to ensure uninterrupted working power supply to the power supply equipment.

[0021] Connect two online UPS power supplies UPSA and UPSB to the mains power supply line to achieve redundant power supply. The input ends of the two online UPS power supplies UPSA and UPSB are connected to the mains power through air switches k1 and k2 respectively. The online UPS power supply The phase line and the neutral line of the output end of UPSA or UPSB are respectively connected to the drive coil of the AC contactor KC and the input end of a set of normally closed contacts. The output end of the set of normally closed contacts of the AC contactor KC supplies power to the equipment The output terminal; the phase lin...

Embodiment 3

[0024] See figure 2 In the redundant AC power automatic switching method of this embodiment, two online UPS power supplies are connected to the mains power supply line to achieve redundant power supply, and a redundant shared power supply is automatically switched through the AC contactor to ensure that the power supply equipment is provided Uninterruptible working power supply, using two online UPS power supplies UPSA and UPSB, the input ends of which are connected to the mains through an air switch, and the phase line and neutral line of the output end of the online UPS power supply UPSA are respectively connected to the drive of the AC contactor KC1 The two ends of the coil, the two ends of the drive coil of the AC contactor KC3, and the input end of a set of normally open contacts of the AC contactor KC3, the set of normally open contact output ends of the AC contactor KC3 is the power supply output of the equipment The phase line and the neutral line of the output end of ...

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 an automatic switching method of redundant AC power. In a mains supply line, online UPS power supply is connected to realize redundant power supply. During failures of the mains or online UPS power supply, status switching by the online UPS power supply or mains supply is realized through an AC contactor. A phase line and a zero line of the mains or the online UPS power supply are respectively connected with a drive coil of the AC contactor and an input end of a normally open contact of the AC contactor. An output end of the normally open contact of the AC contactor is an output end for powering equipment. A phase line and a zero line of an output end of the other way of the online UPS power supply are correspondingly connected with an input end of a corresponding normally-closed contact of the AC contactor. Output ends of the normally-closed contact and the normally open contact of the AC contactor are correspondingly connected. By redundant power supply of the two-way UPS power supply and mains, switching combination of the three-way power supplies is realized through the AC contactor. Thus, it can be ensured that system power-loosing accidents will not happen even if both two-way UPS power supplies break down.

Description

Technical field [0001] The invention relates to a method for realizing automatic switching of redundant power supplies. Background technique [0002] In the field of railway system and industrial production automation control, in the computer interlocking or microcomputer monitoring system, UPS power is often used to prevent the external AC power supply from powering down and causing the equipment of the entire system to lose power, causing the system to operate paralyzed, thus endangering railway traffic Or the connection of the automated production line runs stably. Therefore, for computer interlocking or microcomputer monitoring systems, redundant power supply equipment is often used to ensure system power supply. [0003] However, in practice, due to insufficient consideration of power supply redundancy methods, when the UPS power supply fails, the redundant switching does not occur from time to time. Causing the computer interlocking or the computer monitoring system to caus...

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 Patents(China)
IPC IPC(8): H02J9/06
Inventor 徐大贵谭鹏超
Owner HENAN SPLENDOR SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com