What is the main reason for providing metallic sheath in underground cables? The metallic sheath is provided around the insulation…
Normal loads on ac supply system are inductive in nature (eg: motors, power transformers, voltage regulators, induction furnace, choke coils,…
What for series and shunt compensation provided in EHV transmission lines? Series capacitance is provided in EHV lines to artificially…
Crowbar circuit is used to protect circuit or equipment under fault condition Over Current Causes: Over current flow through thyristors…
Firing Circuits: Gate triggering is the most commonly used turn-on method employed to switch on the thyristors. Triggering circuits is…
Hysteresis Loss: When a magnetic material is subjected to a cycle of magnetization (magnetized first in one direction and later…
In a 3-phase system the alternators or generators may be star connected or delta connected. Likewise 3-phase loads may be star connected…
Where does Negative phase sequence relay is employed? Negative sequence relay is employed for the protection of generators and motors…
Synchronous Generator Protection Interview Questions Answers What are the common types of generator faults? The common types of faults occurring…
Induction Motor Protection Interview Questions Answers What are the type of faults that are likely to occur in operation of…