主电路以反并联的晶闸管作为控制开关，控制焊接用的电阻点焊变压器通电与否。
In the main circuit, the inverse parallel couple SCRs (silicon-controlled rectifier) are used as a electric switch, switching the transformer of resistance spot welding.
对一起370MVA主变压器分接开关损坏的原因进行了分析，介绍了处理经过，提出了反事故技术措施。
The Tapping switch damaged of a main transformer which power is 370MVA was analyzed, the handling process the measure of preventing accident were provided.
对于开关补偿电源的主电路部分，特别是变压器设计、PWM控制芯片选择、以及工作原理进行了详细的阐述。
As for the main part of switching power, in particular, more detail in the transformer design, PWM controller selection, and working theory.
电源主回路主要由飞轮脉冲发电机、整流变压器、晶闸管变流设备、硅整流器、开关网络等组成。
The main circuit of power supply is made up of pulsed generators with flywheel, rectifier transformers, thyristor converters, diode rectifiers and switches.
利用有源钳位电路实现主变压器铁心对称复位，功率开关在宽输入电压和宽负载电流范围内零电压开关。
By using an active clamp circuit, the power transformer core is symmetrically reset. Zero voltage switching conditions are achieved over a broad input voltage and output current range.
在变电站综合自动化工程设计中，对于主变压器分接开关位置的显示，常规方案是需加装档位变送器。
In engineering design of integrated automation of substation, the display of tap changing switch position for main transformer is to add position transducer in the conventional scheme.
在变电站综合自动化工程设计中，对于主变压器分接开关位置的显示，常规方案是需加装档位变送器。
In engineering design of integrated automation of substation, the display of tap changing switch position for main transformer is to add position transducer in the conventional scheme.
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