Safety Prevention of Power Supply and Distribution System in Open Pit Coal Mine

The plan for power supply and distribution system in the Chemical Industry Park is complex. The evaluation method must be easy and truly show the site conditions in order to maintain the proper function of the system. Thus the fuzzy comprehensive evaluation method was chosen and applied in this paper. As for the weight calculation, Analytic hierarchy process (AHP) was used to compute the subjective weight; on the purpose of avoiding strong effect of subjective factors, the standard deviation for each index was calculated, and then the subjective weight was integrated to build the subjective and objective comprehensive weight model. Lastly fuzzy comprehensive evaluation method was applied into the model for assessing the power supply and distribution system in the Chemical Industry Park.

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Application in Aerospace Experiment Field for Intelligent Power Supply and Distribution Monitoring System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.516-517.1322 ◽

2012 ◽

Vol 516-517 ◽

pp. 1322-1325

Author(s):

Qiang Su ◽

Peng Xu ◽

Wei Xiong

Keyword(s):

Monitoring System ◽

Power Supply ◽

Distribution System ◽

Electrical Energy ◽

Configuration Software ◽

Force Balance ◽

Distributed Network ◽

Electric Force ◽

Supply And Distribution ◽

Monitoring Software

According to applying feature of power supply and distribution system in aerospace experiment field, the intelligent monitoring system is designed by adopting hierarchical distributed network structure which includes field layer, network layer, management layer, and command center layer. The monitoring software based on configuration software realized such functions as unify electric force management, optimize electric force balance, economize electrical energy loss, extend lifetime of equipments, improve qualities of environment protection, promote efficiency and managing level. Applying result indicates: the system satisfies the requirement of aero experimenting task.

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The Analysis of an Accident in Coal Mine which Caused by Short-Circuit of 6kv High-Pressure Explosion-Proof Switch

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.143-144.27 ◽

2011 ◽

Vol 143-144 ◽

pp. 27-31

Author(s):

M.H. Hu ◽

Y.L. Lv ◽

Na Wang

Keyword(s):

High Pressure ◽

Coal Mine ◽

Power Supply ◽

Short Circuit ◽

Lessons Learned ◽

Large Area ◽

High Voltage Power Supply ◽

Supply And Distribution ◽

Production Safety ◽

Pressure Water

To describe 6kv high-pressure explosion-proof switches, the main device of ensuring the safe operation of in coal mine power supply system, are widely used in coal mine, which can complete the mission of underground high-voltage power supply and distribution and the controlling of high-pressure water pump motor. The short-circuit of high-pressure explosion-proof switch is not a common fault, but the event usually cause a large area power outage, especially at high gas underground mine, which is a serious threat to production safety. In this paper, the analysis of switch short-circuit accident triggered by the isolating switch shows the reason of the accident, and we can summarize the relevant experiences and lessons learned.

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