机曲轴同轴安装，就可以利用柴油机的旋转带动发电机的转子，利用‘电磁感应’原理，发电机就会输出感应电动势，经闭合的负载回路就能产生电流。这里只描述发电机组***基本的工作原理。要想得到可使用的、稳定的电力输出，还需要一系列的柴油机和发电机控制、保护器件和回路。机组主要技术参数、发电机技术参数（供参考）机组型号额定功率额定电流机油容量燃油消耗KVA/KWALg/KwhSQ-22.5/23.62-5180-220SQ-33.75/35.42-5180-220SQ-56.25/59.02-5180-220SQ-810/814.42-5180-220SQ-1012.5/1018.14-10180-220SQ-1215/1221.64-10180-220SQ-1518.75/1527.04-10180-220SQ-2025/2036.05-12200-210SQ-2430/2443.27-12200-210SQ-3037.5/3054.08-12200-210SQ-4050/4072.010-15200-210SQ-5062.5/5090.010-15200-210SQ-7593.75/7513512-20190-210SQ-80100/8014413-25190-210SQ-90112.5/9016213-35190-210SQ-100125/10018013-30190-210SQ-120150/12021615-30190-210SQ-150187.5/15027015-30195-215SQ-180225/18032415-30195-215SQ-200250/20036018-35195-215SQ-250312.5/25045018-35190-210SQ-28035028050430-55190-210SQ-300375/30054030-55190-210SQ-350437.5/35063030-55190-210SQ-400500/40072040-65190-210SQ-450562.5/45081045-65190-210SQ-500625/50090055-75190-210SQ-550687.5/55099055-75190-205SQ-600750/600108070-85195-205SQ-700875/700126075-90190-200SQ-8001000/800144075-100190-200SQ-9001125/900162080-130190-200SQ-10001250/10001800100-150190-200SQ-12001500/12002160120-180190-200SQ-15001875/15002700150-190190-200SQ-16002000/16002880180-200190-200SQ-20002500/20003600180-220190-200按品牌分：帕金斯、奔驰、***、沃尔沃、斗山、进口康明斯、重康、上柴、潍柴、济柴、玉柴、无动等特殊类型：静音型、移动型、小功率（5-15KW）、***发电机、高压发电机组广泛用于矿山、铁路、野外工地、道路交通维护等)