Question

Pre-lab: (10 points) For the circuit in Figure 1, if the voltage supply Vs is 70 volt (rms) at 50 Hz, the resistance is 200 ohm and the inductance 405 mH. - Calculate the active power, reactive power, apparent power and power factor. - If a capacitor is connected in parallel to the RL load, calculate the capacitor values to improve the power factor to be • 0.91 • 0.96

          Pre-lab: (10 points)
For the circuit in Figure 1, if the voltage supply Vs is 70 volt (rms) at 50 Hz, the
resistance is 200 ohm and the inductance 405 mH.
- Calculate the active power, reactive power, apparent power and
power factor.
- If a capacitor is connected in parallel to the RL load, calculate the
capacitor values to improve the power factor to be
• 0.91
• 0.96

Pre-lab: (10 points)
For the circuit in Figure 1, if the voltage supply Vs is 70 volt (rms) at 50 Hz, the
resistance is 200 ohm and the inductance 405 mH.
- Calculate the active power, reactive power, apparent power and
power factor.
- If a capacitor is connected in parallel to the RL load, calculate the
capacitor values to improve the power factor to be
• 0.91
• 0.96

Added by David S.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Krystal K

Step 1

Active power (P) = Vs^2 / R P = (70^2) / 200 P = 24.5 W Reactive power (Q) = Vs^2 / XL XL = 2πfL XL = 2π(50)(0.405) XL = 127.23 ohms Q = (70^2) / 127.23 Q = 38.5 VAR Apparent power (S) = √(P^2 + Q^2) S = √(24.5^2 + 38.5^2) S = 46.1 VA Power factor (PF) = P / Show more…

Show all steps

Thanks for your feedback!

Pre-lab: (10 points) For the circuit in Figure 1, if the voltage supply Vs is 70 volts (rms) at 50 Hz, the resistance is 200 ohms and the inductance is 405 mH. Calculate the active power, reactive power, apparent power, and power factor. If a capacitor is connected in parallel to the RL load, calculate the capacitor values to improve the power factor to be 0.91 and 0.96. 200 Voltage leads current by in phase. 405 mH Figure 1.