For the circuit calculate the total current, the current in each inductor branch, and the impedance, phase angle, and reactive power. Also, draw the current phasor diagram. 163252 www Vs 30 Vrms f = 200 Hz www 3264 lll 6.127x10" lll 1.225x10-³ -3

The IT servers for a medium-sized company need to be protected fromgrid failures (e.g. blackout) and thus is powered through anuninterruptable power supply (UPS) unit. The UPS consists of a 3-phase diode rectifier powering the dc bus, which then splits between a3-phase inverter unit and a battery energy storage system (BESS). UPSparameters are given in Table B2 and a general schematic is shown inFigure B2.a) Assuming that the inverter and BESS pull a combined constant current,IDC, from the dc bus, draw the approximate waveforms over one full accycle for: (i) the three ac line voltages, (ii) the three ac currents, and(iii) the total dc bus voltage.

A 15µF capacitor and a 470 ohm resistor are connected in series with a function generator. The supply voltage is 50V RMS 40Hz. Find the reactive power for this circuit.

1) Two identical voltage waveforms of difference phase angles are shown in Figure B. Write down the expression of waveforms A and B clearly. HUS Voltage (V) 8 0 K/N B 7: ST ot