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DETECTION CIRCUIT AND DETECTION METHOD FOR DETECTING INSULATION RESISTANCE OF PHOTOVOLTAIC INVERTER, AND PHOTOVOLTAIC INVERTER
DETECTION CIRCUIT AND DETECTION METHOD FOR DETECTING INSULATION RESISTANCE OF PHOTOVOLTAIC INVERTER, AND PHOTOVOLTAIC INVERTER
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机译:光伏逆变器绝缘电阻的检测电路和检测方法,以及光伏逆变器
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摘要
A detection circuit includes: a first switch, a second switch, a first detection resistor and a second detection resistor, wherein the first switch and the first detection resistor are coupled in series to form a first branch, a first end of the first branch is electrically connected with a positive bus of the photovoltaic inverter and a second end of the first branch is electrically connected with a ground; and the second switch and the second detection resistor are coupled in series to form a second branch, a first end of the second branch is electrically connected with a negative bus of the photovoltaic inverter and a second end of the second branch is electrically connected with the ground.
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