Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / kapil dev sharma
current fault level is calculated by the following formula.
Isc= (FLC/%Z)X 100
Isc= Short circuit current
FLC= Full load current
%Z= % Impedence
| Is This Answer Correct ? | 6 Yes | 3 No |
Post New Answer View All Answers
boiler is running in rankine cycle and deisel generator is....?
1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.
what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.
how will we calculate the copper wire load..
what is the difference between electrical choke and electronic choke?
can you plz send l&t aptitude questions if available its urgent plz plz plz
how to test and calculat the head and discharge in borewell compressor
DESCRIBEPNEUMATIC SYSTM OF ASH HANDLING PLANT
how to calculte capacitor range for single phase induction motors??pls tel
How Can You Relate Power Engineering With Electrical Engineering?
hello friends..... any one have papers or any study materials?sail ,hpcl...?
two way ckt diagram can be drawn by how many ways? give diagram
Define rise time.
How is operate breaker failure scheme in substation
what is the advantages og idmt relay over magnetic relay??
