From: Research on Energy Efficiency Characteristics of Mining Shovel Hoisting and Slewing System Driven by Hydraulic-Electric Hybrid System
p (MPa)
Pmax (kW)
η3(%)
E (kJ)
η4(%)
25
45
57.35
157
59.4
26
34
59.47
100
61.8
27
23.4
61.51
47.3
63.9
28
12.6
63.56
47.4