Rotor Earth Fault in a Generator:
Types of Rotor Earth Fault in a Generator: Rotor Earth Fault occurs in a rotor of a Generator in either two ways they are Single Rotor Earth fault Double Rotor Earth… Read more »
Category: Electrical Machines
Conducting Materials and Their Applications:
Conducting Materials: Materials used for conducting electricity are known as Conducting materials. These materials play a vital role in Electrical Engineering. It is interesting to know the applications of these… Read more »
Torque Angle versus Load or Power Angle:
These three terms Torque angle, Power angle and Load angle are associated with Synchronous machines that are synchronous generator and synchronous motor. They named as Synchronous machines as they revolve… Read more »
Vector Groups of Transformer:
PHASOR/VECTOR GROUPS: Phasor or Vector groups are used to denote different connection methods for poly phase transformers. This knowledge is required for connecting the poly phase transformers in parallel. To… Read more »
Polarity Test of Three Phase Induction Motor:
Conducting Polarity test of new three phase Induction motor is necessary before running into operation. If the wrong polarity motor is supplied with three phase supply, the magnetic field distribution… Read more »
Positive and Negative Tap Changers on Transformer:
Transformer Name Plate detail contains the information about Positive and Negative tap changers. It is important for an operator to have the knowledge regarding how these tap changers work. Working… Read more »
Transformer Oil:
Transformer Oil is used for insulation and cooling of transformer. It is a highly refined mineral oil that is stable at high temperatures and has excellent electrical insulating properties. Inside… Read more »
Classes of Insulating Materials
Insulating materials divided into several classes based on the temperature withstanding limits. Insulating materials used in machines like Transformers, Generators and Motors based on their thermal heat withstanding capacity. As… Read more »
Static Excitation of an Alternator
Function of Excitation System: Static Excitation of an Alternator is one of the Excitation method.The basic function of any excitation system is to provide DC power to a field winding…. Read more »
Brushless Excitation of an Alternator
Excitation systems have a powerful impact on generator dynamic performance and availability, it ensures quality of generator voltage and reactive power, i.e. quality of delivered energy to consumers. Brushless excitation… Read more »