Currently, the majority of high-performance complexes of coal mines includes conversion devices in the control systems of electric drives of technological machines and installations. The operation of the Converter devices is associated with a significant generation of higher harmonics in the power supply network, which negatively affect the ...
Multifunctional safety systems for coalmines - operational experience in indoor positioning subsystem and personnel alerting subsystem. In the article are considered practical aspects of the indoor positioning and emergency alert systems for personnel as a parts of multifunctional safety systems in coalmines. It is shown, that currently existing systems in …