IEVref:321-02-34ID:
Language:enStatus: Standard
Term: knee point voltage
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Definition: the r.m.s. value of the sinusoidal voltage at rated frequency applied to the secondary terminals of the transformer, all other windings being open circuited, which when increased by 10% causes the r.m.s. value of the exciting current to increase by 50%


Publication date:1986
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