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泰山—12型拖拉机工作时发动机转速变化较大,从而使得所配永磁交流发电机输出电压不稳,车灯时亮时暗。一位机手将闲置的直流发电机配上调节器,代替原发电机使用。开始,使用效果好于原发电机,但使用不到两个月,就出现发动机中低转速时车灯还勉强工作,高转速时灯光反而变暗,甚至熄灭的故障,换上新调节器后,使用不久又出现同样的毛病。仔细检查调节器,发现调节器触点烧蚀。这是因为拖拉机白天工作时不需要车灯照明,可发电机仍然发电。由于线路中没有负载,所以发电机维持较高的输出电压,使调节器频繁地开启、
Taishan -12 tractor work when the engine speed changes, making the permanent magnet AC generator with the output voltage instability, the lights when the dark light. A machine hand will idle DC generator coupled with the regulator, instead of the original generator. Start, the use of better than the original effect of the generator, but less than two months, appeared at low engine speed when the lights still barely work, the lights turn dark at high speed, or even extinguished the fault, put the new regulator , Soon after using the same problems appear. Check the regulator carefully and notice that the regulator contacts ablated. This is because the tractor does not require headlights for daytime work and the generator can still generate electricity. Since there is no load in the line, the generator maintains a high output voltage, allowing the regulator to turn on frequently,