How to Calculate Knee Point Voltage of Current Transformer?
What is the knee point voltage of CT? The knee point is defined as the voltage at which a 10% increase in applied voltage increases the magnetizing current by 50%.
Machines
An electrical machine converts mechanical energy into electrical energy or vice versa. The transformer is also an electrical machine which transform the voltage without changing the frequency. We will discuss about the;
- DC Motor
- DC generator
- Induction Motor
- Transformer
- Electrical drives
- Alternator or synchronous generator
What is the Use Of Knee Point Voltage?
In this article we will discuss the use of knee point voltage of current transformer in the protection circuit. The knee point voltage of CT
Why CT Secondary Shall Never Be Kept Open?
Open-circuited CT can cause serious safety concerns like fire, electrocution, and protection failure. Therefore, you must ensure that CT secondary should always be close-circuited. Let
VVVF Drive- Why V/f Ratio is Kept Constant in VFD?
VVVF( Variable voltage variable frequency) control is used to control the speed of the induction motor. The VVVF drive controls the voltage and frequency simultaneously