Chapter 5.2 Fault Calculation.pdf - Chapter 3.2 \u2013 Fault Calculation Chapter 3.2 Fault Calculation What is a short circuit A short circuit is a

Chapter 5.2 Fault Calculation.pdf - Chapter 3.2 u2013...

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Chapter 3.2 – Fault Calculation Chapter 3.2 Fault Calculation
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What is a short circuit? Chapter 3.2 Fault Calculation
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Common types of fault circle5 Bolted Faults All three phases “bolted” together to create zero impedance connection. circle5 Arc Faults Usually caused by insulation breakdown, creating an arc between two phases or phase to ground. Chapter 3.2 Fault Calculation
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Chapter 3.2 Fault Calculation
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Why? circle5 Electric systems occasionally experience short circuits. circle5 This results in abnormally high currents. circle5 Overcurrent protective devices should isolate faults at a given location safely, with minimal damage. circle5 The parts of system shall be able to withstand the resulting mechanical and thermal stresses. circle5 The magnitudes of fault currents are usually estimated by calculations. circle5 The equipment is selected using the calculation results. Chapter 3.2 Fault Calculation
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Chapter 3.2 Fault Calculation
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Chapter 3.2 Fault Calculation
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Faults in an Electrical power SystemIn an electrical circuit, faults may occur at any point in the circuits or in any of the equipment in that circuit. The faults that can occur are of the following types: Chapter 3.2 Fault Calculation
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Chapter 3.2 Fault Calculation
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