The unit can be started with the breaker or switch opened using the generator step-up transformer as a source of off-site power.
机组可在断路器或负荷开关打开时，采用发电机升压变压器作为一种非本电厂电源来起动。
Deep switch mode power supply design knowledge, e. g. transformer design, topology selection.
较深的开关电源的设计知识，如变压器设计，拓扑选择。
The heater is composed of a housing, a heating filament arranged in the housing, and a switch, a transformer and a power plug sequentially connected with the heating filament.
加热器由外壳，设于外壳内的加热丝，以及与加热丝依次连接的开关、变压器、电源插头构成。
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