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§4—1 主电路§4—1—1 概述在第三章中详细介绍了SS_1型电力机车基本特性,如起动特性(V～I_o)牵引力特性(F～I_O),牵引特性(F～V),电阻制动特性(B～V)等。上述特性集中反映在机车牵引列车的起动与调速及电阻制动减速与调速两大功能上。要使电力机车具备上述基本特性及完成牵引与电阻制动功能,就必须给电力机车装备若干基本的功能器件,如
§4-1 Main Circuit §4-1-1 Overview In Chapter 3, the basic characteristics of SS_1 electric locomotive are introduced in detail, such as the traction characteristic (F ~ I_O) of the starting characteristic (V ~ I_o), the traction characteristic ), Resistance braking characteristics (B ~ V) and so on. The above characteristics are mainly reflected in the locomotive traction train starting and speed control and resistance braking deceleration and speed control two functions. For electric locomotives to possess the above basic characteristics and accomplish the traction and resistance braking functions, it is necessary to equip electric locomotives with a number of basic functional devices such as