Results 1 to 10 of about 37,050 (169)

Short circuit transient power analysis of hybrid intrinsically safe circuit

open access: yesGong-kuang zidonghua, 2023
Currently, research on the intrinsically safe features of intrinsically safe circuits mostly relies on the IEC spark experimental device as the experimental platform.
NIE Honglin   +6 more
doaj   +2 more sources

Influence factors analysis of discharge characteristics of compound intrinsically-safe circuit

open access: yesGong-kuang zidonghua, 2020
Existing researches on discharge characteristics of compound intrinsically-safe circuits may be lack of mathematical analysis, or consider influence factors incompletely.
SHI Yaping
doaj   +2 more sources

Review of discharge theory and numerical research on intrinsically safe low voltage DC circuits

open access: yesGong-kuang zidonghua, 2022
The discharge characteristics of intrinsically safe resistive, inductive and capacitive circuits are analyzed. It is pointed out that inductive and capacitive circuits have larger discharge energy and more complex discharge waveforms.
ZHU Lin   +3 more
doaj   +2 more sources

A testing device for intrinsically safe multi-circuit protection power supply

open access: yesGong-kuang zidonghua, 2018
In order to solve problems of inconvenient operation, complicated process and low accuracy of existing test methods of intrinsically safe power supply, a testing device for intrinsically safe multi- circuit protection power supply was designed.
REN Gaojian   +3 more
doaj   +2 more sources

Design and Performance Analysis of an Intrinsically Safe Ultrasonic Ranging Sensor

open access: yesSensors, 2016
In flammable or explosive environments, an ultrasonic sensor for distance measurement poses an important engineering safety challenge, because the driving circuit uses an intermediate frequency transformer as an impedance transformation element, in which
Hongjuan Zhang   +4 more
doaj   +3 more sources

A novel chopping current protection circuit for intrinsically safe power supply

open access: yesGong-kuang zidonghua, 2016
For problems that traditional chopping current protection circuit had small cut-off current value and poor anti load impact ability, and needed additional recovery circuit or manual circuit after over-current fault, a novel chopping current protection ...
FANG Xupeng   +4 more
doaj   +2 more sources

Design Requirements of Lithium Battery in Intrinsically Safe Circuit

open access: yesGong-kuang zidonghua, 2010
The paper introduced safety performance requirements of lithium battery and design requirements of battery and battery pack in intrinsically safe circuit at home and abroad,analyzed common problems in designing battery of intrinsically safe circuit and ...
WANG Qi, WANG Chu
doaj   +1 more source

Design and Implementation of an Intrinsically Safe Liquid-Level Sensor Using Coaxial Cable

open access: yesSensors, 2015
Real-time detection of liquid level in complex environments has always been a knotty issue. In this paper, an intrinsically safe liquid-level sensor system for flammable and explosive environments is designed and implemented. The poly vinyl chloride (PVC)
Baoquan Jin   +4 more
doaj   +3 more sources

Design of high-power intrinsically safe power supply based on fault current change rate

open access: yesGong-kuang zidonghua, 2021
In order to solve the problems of low output power, poor protection effect, and slow dynamic response speed of existing intrinsically safe power supply, a high-power intrinsically safe power supply based on fault current change rate is designed.
KANG Qian   +3 more
doaj   +1 more source

Mine intrinsic safety power supply based on adjustable capacity and protection time

open access: yesMeikuang Anquan, 2021
In view of the contradiction between the capacity and impact resistance of mine intrinsically safe power supply, an intrinsically safe power supply with adjustable capacity and protection time, self-recovery and slow start function is designed.
ZOU Dedong, LIU Peng
doaj   +1 more source

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