构成：一个主机，两个仿生喇叭，一个12v交流变压器，一根蓄电池连接线。
Configuration: One main frame, Two loudspeakers, One DC12V power adapter, One accumulator line.
HVDC系统以大地回路方式单极运行时，其大地回路直流会给交流变压器带来一些问题，例如，变压器噪音明显增大，过热现象，甚至引起变压器损坏。
When a HVDC system operates in ground-return mode, some problems such as noise rising significantly, overheating etc. occur in AC transformers, or even some transformers would be damaged.
交流电流探头是利用电流变压器的原理来测试电流的﹐它的中心部分可以打开和卡紧在有电流流过的导线上。
Ac current probe act as a current transformer which the core can be opened and clamped on a current carrying conductor.
交流电流表pa 1：指示整流变压器一次电流。
AC current meter PA1: indicating primary current of rectifier transformer.
改进型不配整流变压器，将三相交流电源直接由桥式整流获得直流电压。
The modified types will not be equipped with commutation transformer and the three-phase alternating current power supply directly acquires DC voltage through bridge type rectifier.
取样信号板上T3为取样变压器，将整流变压器一次电压(0 ~ 380v)变为0 ~10v交流电压。
T3 on sampling signal panel is sampling transformer, which can convert primary voltage (0 ~ 380v) of primary transformer into 0 ~ 10v AC voltage.
取样信号板上T3为取样变压器，将整流变压器一次电压(0 ~ 380v)变为0 ~10v交流电压。
T3 on sampling signal panel is sampling transformer, which can convert primary voltage (0 ~ 380v) of primary transformer into 0 ~ 10v AC voltage.
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