Question

The positive, negative and zero sequence reactances of a 20 MVA, 13.2 kV synchronous generator are 0.3 pu, 0.2 pu and 0.1 pu respectively. The generator is solidly grounded and is not loaded. Neglect all resistance. Determine the fault current if a double line to ground fault occurs at the generator terminals b and c.

Name: the positive negative and zero sequence reactances of a 20 mva 132 kv synchronous generator are 03 pu 02 pu and 01 pu respectively the generator is solidly grounded and is not loaded neglect all resis
Uploaded: 2021-11-10T12:02:51-08:00
Duration: 3 min 8 s
Channel: Prem Bijarniya
Description: the positive negative and zero sequence reactances of a 20 mva 132 kv synchronous generator are 03 pu 02 pu and 01 pu respectively the generator is solidly grounded and is not loaded neglect all resis

          The positive, negative and zero sequence reactances of a 20
MVA, 13.2 kV synchronous generator are 0.3 pu, 0.2 pu and
0.1 pu respectively. The generator is solidly grounded and
is not loaded. Neglect all resistance. Determine the fault
current if a double line to ground fault occurs at the
generator terminals b and c.

Added by Dennis B.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Prem Bijarniya

11/10/2021

Step 1

The per unit reactance is calculated by dividing the reactance by the base reactance. In this case, the base reactance is the positive sequence reactance, which is 0.3 pu. Positive sequence reactance = 0.3 pu Negative sequence reactance = 0.2 pu Zero sequence Show more…

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The positive, negative and zero sequence reactances of a 20 MVA, 13.2 kV synchronous generator are 0.3 pu, 0.2 pu and 0.1 pu respectively. The generator is solidly grounded and is not loaded. Neglect all resistance. Determine the fault current if a double line to ground fault occurs at the generator terminals b and c.