Page 366 - Mechanic Diesel - TT
P. 366
MECHANIC DIESEL - CITS
In the context of magnetism, residual voltage and current refer to the remaining magnetic flux or current in a
magnetic circuit or device after the removal of the excitation source.
Residual Voltage: In magnetic circuits or devices such as transformers or inductors, residual voltage refers to the
voltage that remains across the terminals or windings after the excitation (applied voltage or current) has been
removed. This residual voltage is often caused by residual magnetism in the core material.
Residual Current: Similarly, residual current refers to the current that continues to flow through the circuit or
device after the excitation has been removed. This residual current is typically due to residual magnetization in
the core material or leakage currents in the insulation.
Understanding and managing residual voltage and current are crucial in designing and operating magnetic circuits
and devices effectively. It’s essential to consider residual magnetism when designing transformers, motors, or any
other magnetic devices to ensure proper operation and prevent issues such as magnetic saturation or undesired
residual effects.
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CITS : Automotive - Mechanic Diesel - Lesson 126 - 128
