MDA JAN-FEB 2019 JAN-FEB 2019 | Page 59

GHM edia B usiness Book in Series 1.2.4-Energy Transmission Distance Obviously an electrical control system can transmit the energy, between the power generator and the power consumer, to a distance that is much longer than a hydraulic system can. As shown in Fig. 1.21, electrical systems use wire cables instead of pipes, tubes, and hoses that are used in hydraulic systems. Fig. 1.21 - Electrical versus Hydraulic Power Lines 1.2.5-Readiness of Operation Because the electrical power can commonly be introduced on spot, installing and commissioning an electrically driven machine is much easier than a hydraulically driven machine. As shown in Fig. 1.22, quick connect cables install in a small fraction of the time it takes to plumb a hydraulic system. A hydraulic system requires a lot of preparation, e.g. a reservoir, plumbing, cooling water, filter, etc. Fig. 1.22 - Commissioning an Electrical Machine versus Hydraulic Driven Machine The book can be purchased online from www.compudraulic.com 59 | january-february 2019 | Global MDA Journal Global MDA Journal