大多数商业使用多个抽头的变压器开关稳压器在不加控制的时间继电器水龙头，从而产生电压尖峰！
Most commercial voltage regulators using multiple-tapped transformers switch taps with relays at uncontrolled times, thereby creating voltage spikes!
抽头式电源，用转换开关改变初级线圈匝数来调节焊接电压，因此性能十分可靠，维修亦简便。
Plug-type power, user the transfer switch to change the initial step coils adjust The welding voltage. Thus the performance is reliable and maintenance id very simple.
本实用新型是由普通锅体、套管、电热丝、温控开关、抽头、瓷板等组成。
The utility model is composed of a common cooker body, a sleeve pipe, a heating wire, a temperature-controlling switch, a tap, a porcelain plate, etc.
当电机作四极运转时，先按二极运转启动，然后切换开关使主绕组抽头A2与A4连接电机既作四极运转，此时副绕组开路。
When the motor runs in four-pole mode, it is started at two-pole mode and taps A2 and A4 are then connected together. In the meantime secondary winding is open.
当电机作四极运转时，先按二极运转启动，然后切换开关使主绕组抽头A2与A4连接电机既作四极运转，此时副绕组开路。
When the motor runs in four-pole mode, it is started at two-pole mode and taps A2 and A4 are then connected together. In the meantime secondary winding is open.
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