if a 480 v supply delivers 50 A with a power factor of 0.8 find the real power, reactive power, apparent power draw the power triangle
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if a 480 v supply delivers 50 A with a power factor of 0.8 find the...
A single-phase electrical load draws 1000KVA at 0.8 power factor lagging. a) Find the real and reactive power absorbed by the load. b) Draw the power triangle. c) Determine the KVAR of a capacitor to be connected across the load to raise the power factor to 0.95.
Q3. from a 240 V, 50 Hz supply as shown in the Figure 3. 24020 Vrms Inductive load with 0.6 lagging Load current 50 A Ohle Capacitor to be connected for power factor improvement Figure 3: a) Assuming that the capacitor shown in the figure is disconnected, calculate the load real (PL), reactive(Q1), and apparent power(SL) (5 marks) b) Draw the load power triangle and indicate real (P.) reactive (Q.), apparent (SL) power, and power factor angle (@.) (5 marks)...
2) A 480 V, 60 Hz, 400 hp 0.8 PF-lagging eight-pole A-connected synchronous motor has a synchronous reactance of 0.6 and negligible armature resistance. Ignore the mechanical and core losses. The magnitude of the internal machine voltage is 480 V when the field current is 4 A. Assume magnetic linearity. Initially, the motor operates at the rated conditions. a) Find the speed of this motor. b) Find the armature and field currents. c) What is the developed torque? What is...
A 277 V (rms) supply delivers 50 A to a single phase generator. The motor windings cause the current to lag behind the voltage by ?/6 rad. Calculate the power factor, active power, and reactive power.
An Inductive load 1 phase pulling power 6 kW on power factor 0.85 lagging and voltage 230 V. Find : a) Reactive power and Apparent power consumed by the load b) Load impedance c) Draw the triangle power of the load
A transformer has a rated power output P of 400 kW at a power factor of 0.8. Calculate the rated apparent power output S and the corresponding reactive power Q
A transformer has a rated power output P of 400 kW at a power factor of 0.8. Calculate the rated apparent power output S and the corresponding reactive power Q
1. A 480 V (rms) source supplies power to two loads connected in parallel. The first load draws 80 kW and 30 kVAR. The second load draws 100 kVA at a power factor of 0.6 lagging. a) Draw the power triangle for the first load and determine its power factor; b) Determine the current (both magnitude and phase, using the source voltage as the phase reference) drawn by the first load; c) Draw the power triangle for the second load...
e. What of curent and potential transformers in power system protection. g off a 400 V, s0 Hz supply is developing 10 kW with an efficiency of A single-phase motor operatin 94 percent and a power factor (p.f) 0.7 lagging L. the input apparent power iä the active and reactive components of the current; ii the reactive power (in kilovars) iv. Draw the power triangle . Using Phasor dingram, the capacitance required in parallel with the motor of to raise...
Problem 3:A 480 V, 50 kW, 60 Hz, 3-φ synchronous motor has a synchronous reactance of Xs = 4.56 Ω and an armature-to-field mutual inductance, Laf = 150 mH. The motor is operating at rated speed and terminal voltage and at an output power of 35kW. Neglecting losses in the motor, calculate the magnitude and phase angle of the line-to-neutral generated voltage Eaf and field current I if the motor is operating at (a) 0.9 power factor lagging (b) unity...
V(t) = 1920s (5t +96) v i(t) = 19 Cos(5t +96) I Find * Apparent Power * Real Power * Reactive Power * Power factor