Winding temperature is the temperature of the transformer windings, which are the coils of copper or aluminum wire that carry the electric current. Oil temperature is the temperature of the transformer oil, which is...
Transformer oil testing is important because transformer oil is a critical component of transformers and other electrical equipment. It serves two main purposes: Insulation: Transformer oil insulates the high-voltage windings of a transformer, preventing...
Question 1: What is an SCR? Answer: An SCR, or silicon-controlled rectifier, is a four-layer semiconductor device that can be used as a switch. It has three terminals: anode, cathode, and gate. When the...
Resistor circuit Q&A – Part A Q: What is a resistor? A: A resistor is an electronic component that limits the flow of electric current in a circuit. It is designed to have a...
Brushed DC motor A brushed DC motor is a type of electric motor that uses a commutator and brushes to convert electrical energy into mechanical energy. It consists of a rotor, which is the...
AC (alternating current) and DC (direct current) motors have different applications based on their respective characteristics. Here are some of the main differences in their applications: Speed control: DC motors are better suited for...
A DOL starter is a type of motor starter that is used to start and stop a three-phase induction motor. The term “DOL” stands for “Direct On-Line” and refers to the fact that the...
ACSR (Aluminum Conductor Steel Reinforced) conductors are a type of overhead power transmission conductor that consists of a central steel core surrounded by one or more layers of aluminum wire. The steel core provides...
In AC (alternating current) circuits, harmonics are additional frequency components of the voltage or current waveform that are integer multiples of the fundamental frequency. For example, if the fundamental frequency of a circuit is...
The hysteresis loop is a graph that shows the relationship between the magnetic field strength (H) and the magnetization (M) of a ferromagnetic material. The shape and size of the hysteresis loop are affected...
