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例1电枢输出接线柱与电流表之间连线接触不良,充电电流过小一台红岩牌柴油载重汽车,使用中发现蓄电池经常亏电。发动机在高、中速时为2A左右的充电电流,将调节器的火线接线柱与磁场接线柱短接,也没有多大改善。测量发电机输出端接线柱电压,结果输出电压正常。测量发电机电枢接线柱与电流表间连线的电阻发现,该回路的导线电阻达300Ω,换掉该回路导线后,症状完全消失。由此说明,发电机发电量小,是由于该充电回路的电阻压降所致。由于原充电线路的导线长时间使用过程中氧化、
Example 1 armature output connection between ammeter and ammeter poor connection, the charging current is too small A Hongyan diesel truck, the use of batteries found in the regular loss of electricity. Engine at high and medium speed for about 2A charge current, the regulator’s hot wire terminal and the magnetic field terminal shorted, but also not much improvement. Measure the terminal voltage at the generator output, resulting in a normal output voltage. Measuring the resistance between the generator armature terminal and the ammeter connection found that the circuit resistance of the wire up to 300Ω, replace the loop lead, the symptoms disappear completely. This shows that the generator power generation is small, due to the resistance of the charging circuit voltage drop due. Due to the oxidation of the wires of the original charging line for a long time,