UPSC Exam  >  UPSC Questions  >  The impedance of a motor 100 MVA are 0.15 for... Start Learning for Free
The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault?
Most Upvoted Answer
The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 ...
3-phase to ground fault:
The per unit fault for a 3-phase to ground fault can be calculated using the positive sequence impedance of the motor, transformer, and subsequent impedance. The fault current will flow through the positive sequence impedance path.

Single line to ground fault:
For a single line to ground fault, the fault current flows through the positive and zero sequence paths. The impedance of the transformer and subsequent impedance for both sequences should be considered in the calculation of the per unit fault.

Double line fault:
In a double line fault, the fault current will flow through the negative sequence impedance path. The impedance of the transformer and subsequent impedance for the negative sequence should be considered in the calculation.

Double line to ground fault:
For a double line to ground fault, the fault current will flow through the zero sequence impedance path. The impedance of the transformer and subsequent impedance for the zero sequence should be considered in the calculation of the per unit fault.
Explore Courses for UPSC exam

Top Courses for UPSC

The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault?
Question Description
The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault?.
Solutions for The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? defined & explained in the simplest way possible. Besides giving the explanation of The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault?, a detailed solution for The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? has been provided alongside types of The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? theory, EduRev gives you an ample number of questions to practice The impedance of a motor 100 MVA are 0.15 for positive sequence, 0.17 for negative sequence and 0.05 for zero sequence,in series with a transformer of 120 MVA delta connection and 13.8 kV on both side of the transformer,a fault occurs,before another transformer with the impedance of 20v for positive sequence,20v for negative sequence and 60 for for zero sequence,the transformer is a delta connection in series to the motor of 100 MVA with impedance of 13.8 for positive sequence,0.2 for negative sequence and 0.1 for zero sequence is a star connection.. what is the per unit fault for , 1. 3 phase to ground fault 2. single like to ground fault,3.double line fault ,4. double line to ground fault? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev