Winding machine additional overload state indication as supporting solution for mine shaft hoist operators
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2019, Vol 537, Issue 1
Abstract
Dangerous events that take place in the mining plant always give us a chance to rethink whether the design of a faulty device could have been improved enough to prevent such a situation. The same scenario takes place with mining shaft hoist. Without a doubt, a starting point for discussions about additional mining shaft hoist security measures is the last dangerous situation that took place in a Silesian mine in 2017. This article is an analysis of the probable causes and conclusions that can be drawn from that incident.
Authors and Affiliations
Tomasz Siostrzonek, Jakub Wójcik, Piotr Trójca
Diagnostics and monitoring of microprocessor-controlled excitation power supply unit for synchronous motors
This article presents a excitation power supply unit for synchronous motors with a microprocessor control system. The theoretical basics of reactive power regulation with a synchronous motor and influence of load on the...
Analysis of switching on selected electrical high voltage circuits
Physical phenomena occurring in high-current contact systems of electric switches, when switching on unloaded transformers and capacitor banks, are much more dangerous than the phenomena occurring in the contact switch s...
Coreless coil AC transducer
Today’s circuits of systems for monitoring electrical values as well as circuits of power system automation consume less and less power. This is an inspiration to search for state-of-the-art solutions of AC transducers [...
Project and test results of new solution for powered roof support for low seams
The subject of thin seam exploitation is a complex problem; in reality, it involves several problems such as technical, ergonomic, and economic barriers. They refer mainly to combined longwalls – where a human presence i...
Systems and tracks of self-powered suspended monorails for transportation of people in horizontal workings and workings with inclination up to 45°
The article presents the number of transport systems and the length of the routes on which people are transported in Polish mines. A legal status in Poland and China and the guidance of the Regional Office of Arnsberg in...