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美国通用电器公司为了提高标准系列电力传动内燃机车的质量和性能,制定了三年设计和制造规划,已经以新系列机车的产生而告结束。在新系列机车上进行了75项主要和详细的改进。另外通用电器公司改变了原来对通用性机车传统的“U”形命名法;在新系列机车上,B还是轴式为B,即两个二轴转向架,而C表示轴式为C,即两个三轴转向架;前两个数字表示功率等级,后面一个单独的数字表示制造年份。例如U23B就改为B23-7,表示1977年制造的2300马力机车。
In order to improve the quality and performance of the standard series of electric drive diesel locomotives, General Electric Company has formulated a three-year design and manufacturing plan and has concluded with the production of a new series of locomotives. 75 major and detailed improvements were made on the new series of locomotives. In addition, General Electric changed its original “U” shape nomenclature for general purpose locomotives. On the new series of locomotives, B is also a shaft type B, ie, two biaxial bogies, while C represents a shaft type C, ie Two three-axis bogies; the first two digits indicate the power level, followed by a separate number for the year of manufacture. For example, U23B was changed to B23-7, said the 2300 hp locomotive made in 1977.