本实用新型亦可作为正或负单极性半可调直流电源装置使用。
The utility model can be used as a positive or negative unipolarity half-tunable DC power supply apparatus.
起初给扑翼机接上一个直流电源之后，他们发现这个装置的有效载荷为1.5 g，这大概可以勉强提起飞行所需的电池。
Having initially connected the ornithopter using a DC power source, they realized that the device could lift 1.5 grams of payload, which was roughly the mass of the batteries required for flight.
该装置在总馈电开关处的漏电保护装置使用附加直流电源原理，在分支馈电开关处的漏电保护装置使用零序功率方向式保护原理。
This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.
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