Answer Posted / ramendra shukla
To chech the insulation level or dielectric strenth and for
checking the continuty between to conducting material
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is inductance?
i wasted one year for the job after completed my btech what can i say about 1year time in interview
ult of expression 'document.FrmQF.myem
How to decide whether A / B / C / D curve type MCB should be used?
during installation time of transformer and alternator which points we have to observed?
How to check the cable fault / hv test of transformer cable.
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.
If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these
Describe Non I.S. Earth System and why is it used?
What is marx circuit?
impliment (AB)`+C to transistor representation
what is tri state logic gate
WHY BREAKER ARE USED IN SUBSTATIONS?
What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?
WHICH SIZE A.B.CABLE IS USED FOR 11KV.
