Category: SYMMETRICAL FAULT

Location of Reactors in Power System

Location of Reactors in Power System: Short circuit current limiting Location of Reactors in Power System may be con­nected in series with each generator in series with each feeder and in bus-bars. No definite statement can be given as to which one of the above locations is preferable; each installation has its own particular demands […]

Short Circuit kVA

Short Circuit kVA: Although the potential at the point of fault is zero, it is a normal practice to express the short-circuit current in terms of Short Circuit kVA based on the normal system voltage at the point of fault. The product of normal system voltage and short-circuit current at the point of fault expressed […]

Percentage Reactance in Power System

Percentage Reactance in Power System: The Percentage Reactance in Power System of generators, transformers, reactors etc. is usually expressed in percentage reactance to permit rapid short circuit calculations. The percentage reactance of a circuit is defined as under : It is the percentage of the total phase-voltage dropped in the circuit when full-load current is […]

Symmetrical Faults on 3 Phase System

Symmetrical Faults on 3 Phase System: Most of the Symmetrical Faults on 3 Phase System on the power system lead to a short-circuit condition. When such a condition occurs, a heavy current (called short circuit current) flows through the equipment, causing considerable damage to the equipment and interruption of service to the consumers. There is […]