6 Questions
What is the primary function of the induction cup and induction cylinder units?
To indicate the direction of power flow and magnitude
What type of units are the induction cup and cylinder units often used with?
Time-overcurrent units
What is the purpose of the reference voltage or current in the induction units?
To establish the phase relations for operation
What is the purpose of the permanent magnet in the polar unit?
To polarize the two halves of the magnetic structure
What happens when the gaps are balanced in the polar unit?
The armature is not polarized and the contacts float in the center
What is the purpose of the adjustable magnetic shunts in the polar unit?
To adjust the magnetic flux paths
Understand the working principles of induction cup and cylinder units, used to determine the direction of power flow and magnitude. Learn about their characteristics and operating conditions. This quiz is based on Chapter 3 and Figure 3.7.
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