How to Calculate Short Circuit Current
To calculate short circuit current first we analyze the circuit and check the components like it is a generator, transformer or circuit with different impedances. If the given element is generator, we calculate the short circuit current by dividing the generator rated current with the impedance present in the short circuit path. If the given element is transformer, then we calculate the short circuit current by dividing the KVA rating of the source by secondary side voltage of the transformer. If the impedances are given then, we use the general formula for calculating the short circuit current i.e., by dividing pre-fault voltage with total impedance.
Short Circuit Current Calculations
To calculate the short circuit current in a power system we use the basic formula Isc = V / Z where Isc represents short circuit current, V represents pre-fault voltage and Z represents total impedance. In this article we will explore about the short circuit current, steps to calculate short circuit current, and formulas to calculate short circuit current. We will also solve some examples related to the calculation of short circuit current. Let’s start learning on the topic “How to Calculate Short Circuit Current.”
Table of Content
- Short Circuit Current
- Basic Formula
- Types of Faults
- Fault Analysis Methods
- How to Calculate
- Solved Examples
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