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instrument voltage transformer
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instrument voltage transformer
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扩大量限装置
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instrument voltage transformer
仪用电压互感器
将电力系统中的高电压按一定比例变成低电压传送给测量仪表、保护装置或控制器件的扩大量线装置。可将电力系统中的多种电压等级变成统一电压标准值,使其配合统一标准的继电器、电压表等使用。
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