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KAC AC Energy Recycling Analog Grid Power Supply
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KAC series AC energy recycling (four-quadrant) analog gridpower supply is a device launched by Hefei Kewell Power System Co., Ltd. to simulate power grid disturbance during testing of photovoltaic inverters, energy storage inverters, charging pile or on-board charger, wind power converters and photovoltaic power stations. It can be used for over voltage, under voltage, over frequency, under frequency, low voltage ride through (zerovoltage ride through), anti-islanding and others experiments.

It uses advanced PWM rectification technology and direct digital frequency synthesis (DDS)technology, has high output frequency stability, good continuity, can provide continuous, pure, stable sinusoidal voltage. The device adopts touch screen to display and control, easy to operate, and can also be connected to the communication module, using PC for remote control. Internal sampling circuitcan quickly detect overcurrent, overload, overvoltage and short circuit, then automatically cut off output and alarm. Inverter unit of the power adopts IGBTmodules to improve the power density and stability.
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