what iz residual flux? explain differential current?if power frequency of Power Transformer increased above 50Hertz then increases

Remanence or remanent magnetization or residual magnetism is the magnetization left behind in a ferromagnetic material (such as iron) after an external magnetic field is removed. It is also the measure of that magnetization. Colloquially, when a magnet is "magnetized" it has remanence.A differential relay is defined as the relay that operates when the phase difference of two or more identical electrical quantities exceeds a predetermined amount. ... For example, consider the comparison of the current entering a protected line and the current leaving Depends on type of transformer and core used. For power frequency transformer, possibly you may change between 50 and 60 Hz without much problem, if you have adequate thermal tolerance for cored losses. Otherwise you will derate the transformer accordingly If we think of ferrite cores or iron powder cores, they have wide range of materials with different frequency response. Core losses as also permeability may vary. If these can be taken care of, you can change the frequency without problems. In fact, you may even use the core characteristics to advantage to get some preferred variations in performance at different frequencies. For example, you may select a particular core to get required EMI performance from an electronic circuit. .

1 Answer
Top Voted Recent Answer
1-1 of  1
1 Answer
Top Voted Recent Answer
forum   Other Related Discussions
Electrical Engineering

Didn't get the answer.
Contact people of Talent-Electrical Engineering directly by clicking here