This paper introduces the measure principle of voltage convertor in big direct current survey setting, the question existed in survey and how to improve it.
介绍了大直流计量装置中的电压变换器检测原理，测量中存在的问题以及改进措施。
The circuit isolated by optical fibre for transmitting drive signals and avoiding over current is proposed to solve drive and protection problems for transistors in high-voltage multi-level convertor.
为解决开关器件在多电平高压功率变换器的驱动和保护问题，提出了一种光纤隔离的驱动保护电路。
The circuit isolated by optical fibre for transmitting drive signals and avoiding over current is proposed to solve drive and protection problems for transistors in high-voltage multi-level convertor.
为解决开关器件在多电平高压功率变换器的驱动和保护问题，提出了一种光纤隔离的驱动保护电路。
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