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1.СБА-500和3Иφ-650型钻机的ВИТР电力传动装置全苏勘探技术研究所(ВИТР)设计的直流可调电力传动装置,配有功率达100千瓦的可控硅整流器,并于1972年先后在СБА-500和3Иφ-650型钻机上进行了试
1. ВИТР Electric Drives of the СБА-500 and 3Иφ-650 Drilling Rig All-In-Situ Exploration Institute of Technology (ВИТР) designed a DC adjustable electric actuator with a silicon controlled rectifier up to 100 kW in 1972 Has СБА-500 and 3Иφ-650 drilling rig on a trial