Can transformer develop three phase power from a single
phase source?
- 12 Answers
- 16797 Views
- ONGC, I also Faced
- E-Mail Answers
Answer Posted / minto
yes because me make 3 phase transformer by the help of 3
sngle phase transformer.
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What are the function of different components of servo motor?
EXPLAIN METOD OF IMAGE OF TRANSMISSION LINE/ WHAT ARE ITS PRACTICAL APPLICATION?
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
What is the effect of pd controller on system performance?
Yazaki india pvt ltd interview questions qurey related
How to protect a Dosing pumps/any sensitive equipment (single phase) from surge protection inside a food factory.
sir plz send some previous year questions of jspl.
why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?
How you give clearance to a spare feeder.
how you configure motorvision relay (L&T make)from DCS
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 current setting for different relay protection for transformer .
Convert a star connected network into a delta connected network.
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
plz explain the auot-reclosing circuit in electrical engineeing
