what its mean 'inverter based technology' ? if we talk about refrigerators, splits ACs etc how it helps to produce & keep more coolness and chilled atmosphere ?

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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 0for 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.

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How much of the total hydro power potential has been exploited so far in india?

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WHY LINK NOT A FUSE IN AC CIRCUIT

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how r charge carriers produced

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how did the differential relay work to protect the power transformer

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i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

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Load 380kva eb 415v,load amps 350.Same load dg 415v,load amps 420 what reason ?

1 Answers   AVT Natural Products,

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How will you define capacitance?

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dear friends, we are use 130 hp load run with 0.98 power factor ( 38KVAR capacitor connected ). if we need improve the the power factor to 1 (unity). how much kvar capacitor to be add. have any formula? please share with me.

3 Answers   Reliance,

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what is mean by current

17 Answers   Wipro,

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what will happen if field winding of Synchronous generators given ac supply

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