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Why is the low-voltage side voltage of wind power transformer 690V?

By.Johns 2024-09-23 08:52:02 Share on facebook Share on Google Share on Instagram Share on Pinterest Share on Twitter Share on Tumblr Share on WhatsApp Share on Telegram Share on Reddit Visit our Instagram

Introduction Why is the low-voltage side voltage of wind power transformer 690V? Because the power of wind turbines is generally 1.5~3MW. If 380V is used, the current is too large and impractical. If high voltage is used,

Why is the low-voltage side voltage of wind power transformer 690V?

Because the power of wind turbines is generally 1.5~3MW, if 380V is used, the current is too large and impractical. If high voltage is used, high-voltage inverters are too expensive, complex and require high requirements, so the highest voltage level that low-voltage inverters can withstand is 690V. Voltage, (the maximum withstand voltage of the power IGBT inside the low-voltage inverter is generally 1700V, and the 690V rectifier is about 1100V, just leaving some margin)

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