No Load Losses of Transformer – Formula & Core Loss
Transformers, even when not supplying any load, consume power—this is known as no-load loss or core loss. These losses occur as soon as the transformer
Impact of Harmonics on Power Quality – Causes, Effects, and Solutions
In the early days of industrialization, electrical systems mostly used linear loads—devices like three-phase induction motors, resistive heaters, and incandescent lamps. These systems drew a
Starting Torque Of DC Motor
What is Starting Torque of a DC Motor? The starting torque of a DC motor is the maximum torque that a motor can deliver to
What is True RMS Measurement? | RMS vs True RMS, Formula & Meaning
In modern electrical systems, especially with non-linear loads, accurate measurement of AC signals is critical. This is where True RMS measurement outperforms traditional methods. Unlike
Breaking Capacity of Circuit Breaker
Definition: Breaking capacity or interrupting capacity of the circuit breaker is a crucial parameter for selecting the breaker for the electrical network. The short circuit
Accuracy Class Of Current Transformer
The accuracy class of a CT refers to the permissible error limits of the CT over a specified range of conditions. It ensures that the
Magnetization Curve of CT
The magnetization curve of the current transformer shows the relationship between the secondary excitation current and secondary excitation voltage. The equivalent circuit diagram of the
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%.
What is Knee Point Voltage of a Current Transformer (CT)?
In this article we will discuss importance and use of knee point voltage of current transformer in the protection circuit. The knee point voltage of
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 closed-circuited. Let us