Name different types of fault and which instrument is used
to measures earth,short,open cicuit fault?

Answer Posted / gulshan goyal

MAINLY THERE ARE TWO TYPES OF FAULTS SHORT CIRCUIT AND OPEN
CIRCUIT FAULTS.IN SHORT CIRCUIT FAULTS WE STUDY ABOUT
SYMMETRICAL AND UNSYMMETRICAL FAULTS.THE THREE PHASE FAULT
WHICH IS RARE MOST SEVERE FAULT IS SYMMETRICAL FAULT.AND
LL.LG ,LLG ARE UNSYMMETRICAL FAULTS.By performing short
circuit MVA analysis for positive, negative and zero
sequences, symmetrical three phase
and unsymmetrical phase-to-ground, phase-to-phase and
double phase-to-ground fault currents can be resolved.

Is This Answer Correct ?    8 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

1915


How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1532


i completed my DEEE. and i want to electrical c license. how to get it..?

1693


Where voltage are high and current to be interrupted is low the breaker preferred is:

1777


I completed iti in2004 I was worked in A grade contractor can I get c licence

1254






Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?

1512


if 3400kw slipring motor rotor shorting done and motor started on mv drive ,what will be the rotor shoring current

1235


What happens if i apply 500V to 440V rotary Switch ?

1393


What are the different sign conventions used in electric circuits?

673


In convertor can we use rectifier thyristor in place of invertor thyristor with explain.

1380


how many safety really of DG sets.

1721


What is Anemometer used to measure?

675


2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?

1592


how could we know the size of cable by physical view?

1215


According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

3691