A main circuit for high-power electrical fire experiment

An electrical fire and high-power technology, applied in the direction of adjusting electrical variables, control/regulation systems, instruments, etc., can solve the problems of not building an integrated large-scale electrical fire experiment system with accurate measurement and control, safe and convenient control operation, and lack of accuracy. To achieve the effect of safe and convenient control operation, convenient operation and precise measurement and control

Inactive Publication Date: 2018-05-08
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the above four types of devices and cabinets mainly focus on the initial realization of the control of environmental parameters, while the control of parameters that affect the characteristics of the melting mark such as electrical parameters and contact methods lacks precision, and has not been built into high-power and diverse working conditions. , precise measurement and control, safe and convenient integrated large-scale electrical fire experiment system

Method used

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  • A main circuit for high-power electrical fire experiment
  • A main circuit for high-power electrical fire experiment
  • A main circuit for high-power electrical fire experiment

Examples

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with specific examples.

[0038] see Figure 1 to Figure 5 As shown, the main circuit used in the high-power electrical fire experiment provided by this embodiment includes:

[0039] The incoming line confluence circuit is used to realize the incoming line confluence, overcurrent protection, phase loss protection, and use the travel switch to realize the function of power failure protection when the main power distribution screen door is opened;

[0040] The power switch circuit is used to realize the selection and switching of three-phase AC, three-input single-out programmable (or frequency conversion), three-input single-out DC power supply, and to realize the isolation and anti-interference between various power output terminals, power branch process Functions such as overcurrent protection, making the power supply enter the experimental preparation state, connecting one phase from the three-phase...

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PUM

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Abstract

The invention discloses a main circuit for a large-power electric fire experiment. The main circuit is formed through the connection in turns between an incoming bus circuit, a power switching circuit, a load switching circuit and an outgoing distribution circuit, wherein the incoming bus circuit is composed of two incoming branches and one outgoing branch, so as to realize an incoming bus function, and protect overcurrent, default phase and the like; the power switching circuit can realize the selection and switch among a three-phase alternating current power supply and a three-input single-output programmable (or frequency) power supply, and a three-input single-output DC power supply; the load switching circuit realizes the functions of loading, unloading and connection of series and parallel for an experimental load; the outgoing distribution circuit realizes the outgoing distribution of a sample preparation device and the function of providing overcurrent protection. The main circuit has the advantages of large power, various working conditions, accurate measurement and control, safe and convenient control operation, and can be applied to a large-scale electric fire experiment system.

Description

technical field [0001] The invention relates to the technical field of electrical fire experiment systems, in particular to a main circuit for high-power electrical fire experiments. Background technique [0002] Fire has the highest frequency of occurrence among various disasters, is very destructive, and causes the greatest social impact. According to the 2015 China Fire Protection Yearbook, there were 395,000 reported fires nationwide in 2014, with 1,815 deaths and a direct economic loss of 4.7 billion yuan. Electrical fires accounted for 30%, which is the main category of major fires. From 2009 to 2015, the number of physical evidence appraisal cases entrusted by a physical evidence appraisal institute in Guangdong Province increased from 63 to 225. The situation is becoming more and more complicated, and the support of relevant physical evidence identification technology is needed. [0003] Electrical short circuit fire is mainly caused by various factors, and the con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
CPCG05F1/561
Inventor 梁栋杨文兵莫善军王莉沈浩
Owner SUN YAT SEN UNIV
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