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if only one generator is running in droop mode parrallel with grid and suddenly grid breaker off what will happen? It will trip o/u freq or stay as it is? (urgent)
10 15294when a three phase motor in running condition consumes 2A in each phase,and if one of the phase gets fails what will be the consumption in other two phases
4 6805What will happen if supply to three phase motor is given wiyhout inerting rotor in it?How much current it will draw?
5 7959According to general circuit diagram of 1-Phase t/f , why the primary is not get short circuited ,even though the supply terminals both are directly connected through primary winding?
4 5713how do you calculate IKW(consumption per TR) in HVAC?
Aircon, CBRE, Cipla, Clivet, Cushman Wakefield, JLL, Sodexo, Voltas, Wipro,
27 150791i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection
1839Post New Electrical Engineering Questions
why we use circuit breakers for switching instead of normal switching device?
how dia of wire and angles are calculated for overhead shielding wire to protect substation equipment from lightening strokes???
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.
Why Ac Systems Are Preferred Over Dc Systems?
hello! sir i did three year of diploma in electrical (2007- 2010) and now i m a student of electrical engineering. sir can i apply for germany visa for study and part tome work over there?
what is mean by PIR in circuitbreaker and give me detail of that?
how is find out kwh step by step
what is meant by LCR meter? where its useful ?
What conditions are required for transformer to operate at low frequencies ?
if 2 coil of 1000W connect in series and 200 v is applied across it . then what is the total power of coil when coil have only resistive load .
how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.
salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers
What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps
What are root loci?
Define non-touching loop.
