definition of fault level in powersystems?

Answer Posted / k.prakashchandra

The product of normal system voltage and short circuit
current at the point of fault is fault level and is equal to
3 Vph(normal) x Isc for symmetrical fault in 3 phase
system.It is expressed in KVA or MVA

Is This Answer Correct ?    15 Yes 3 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

how the works electronic energy meter?

1765


why genarator genarating voltage 11 KV?

1436


Why we are use dol starter up to 10 hp

1037


importance of reactive power management

1692


What are the functions of different probes used in cro?

779






STATE USE OF ARC RUNNERS & SPLITTERS ?

1569


Why do we need interlocking in a HT metering or Ring main unit switchgear?

1658


When we connect the large capacitor bank in series ?

716


I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

1310


How does "OUT OF STEP" relay ,for Synchronous motor protection, work?

3978


What is meant by turbo alternators?

763


How to calculate Air conditioning capacity for a telecom BTS shelter?

3130


why do we put a transformer on soak before loading it

765


number of I/O devices in siemense plc

1751


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

1901