Question

Example: The load with lagging 0.8 PF absorbs 60 watts of a 100 V, 60 Hz...

Example: The load with lagging 0.8 PF absorbs 60 watts of a 100 V, 60 Hz power line. Required to correct power factor to 0.9 lag. Find: 3- The original and last line current b) The value of the element to be added to achieve the required pf correction ...
power factor

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Three loads are connected in parallel across a 1500 Vrms - 60 hz. Load 1 absorbs...
Three loads are connected in parallel across a 1500 Vrms - 60 hz. Load 1 absorbs 23 kW and 14 kVAr capacitive. Load 2 absorbs 70 kVA with power factor 0.7 lagging. Load 3 absorbs 22kW with power factor = 1. Find: a) Complex impedance, seen from power source b) Power Factor of the setup and module of Rms current supplied by the source c) Complex impedance of Load 2 d) Value of capacitor to be connected to the combination...
1. A single phase circuit has a load of 500kVa at a power factor of 0.707...
1. A single phase circuit has a load of 500kVa at a power factor of 0.707 lagging. Calculate the kVA of the capacitors needed to improve the power factor to unity 3. When connected to a 120-v(rms), 60Hz power line, a load absorbes 4 kw at a lagging power factor of 0.8. Find the capacitance necessary to raise the pf to 0.9 4. A three phase motor draws 20kva at 0.707 power factor lagging from a 208V source. Determine the...
Two industrial loads each require 250∠0 V (rms) at 60Hz. Load 1 absorbs 8kW at 0.8...
Two industrial loads each require 250∠0 V (rms) at 60Hz. Load 1 absorbs 8kW at 0.8 leading; load 2 absorbs 20kVa at 0.6 lagging l. The line that transmits the power from the source to the load has an impedance of (0.05 + j0.5) Ohm a. Sketch the circuit b. find complex power for the line and the load c. Power (complex) supply by the source (proof the sums of all power equal to zero)
A 525 V to 110 V, 50 Hz, single phase transformer has a no-load current on...
A 525 V to 110 V, 50 Hz, single phase transformer has a no-load current on the HV side, of 0,5 A at a power factor of 0.36 lagging. Answer the following questions regarding this transformer: 3.1 If a load current of 24 A flows on the LV side, at a power factor of 0.8 lagging, find the value of the primary current and the power factor.   State the assumption and sketch the phasor diagram representing this situation.    (10) 3.2...
A 400-k VA, 2300 230, 60-hz transformer supplies a 0.8 lagging power-factor load whose KVA Is...
A 400-k VA, 2300 230, 60-hz transformer supplies a 0.8 lagging power-factor load whose KVA Is adjustable from no load to 120 percent rated KVA. The percent resistance, percent reactance, and percent core loss are 56, 3.16, and 0.42 respectively. For 2 KVA increments of load, tabulate and plot the efficiency of the transformer from no load to 120 percent rated load. Please state the formulas clearly
A 10kW load with 0.65 pf lagging is supplied by an AC source rated 400V. A.)...
A 10kW load with 0.65 pf lagging is supplied by an AC source rated 400V. A.) draw the power triangle of the load B.)If a capacitor is connected across the load to correct its power fctor to 0.95 lagging, what will be the required size of the capacitor bank in kVAR? C.) Draw the new power triangle of the system. D.) what will be the new system current
Electrical Circuit A) A factory (with frequency 60 HZ) has the following electrical loads: Induction motors   ...
Electrical Circuit A) A factory (with frequency 60 HZ) has the following electrical loads: Induction motors    of 16 kW at a lagging power factor of 0.8. Induction motors    of 20 kW at a lagging power factor of 0.7. Load of 12 KVA at a lagging factor of 0.9. Load of 10 KVAR at a leading factor of 0.8 a-what is the overall power factor of the factory. b- Assume that the voltage at the input to the factory is 440...
Two AC loads connected in parallel draw power from a 60 Hz, 120-Vrms source. Load 1...
Two AC loads connected in parallel draw power from a 60 Hz, 120-Vrms source. Load 1 draws 350 W at a lagging power factor of 0.7. Load 2 draws 500 VA at a leading power factor of 0.5. a. (5) Calculate the effective (rms magnitude) current drawn by load 1. b. (10) Calculate the impedance of Load 1. c. (5) Calculate the total complex power drawn by both loads combined. d. (5) Determine the PF of the combined load. Specify...
A motor draws 12A rms from 210 V rms, a 60 hz ac source at 0.85...
A motor draws 12A rms from 210 V rms, a 60 hz ac source at 0.85 pf lagging. If a capacitor is connected to make the power factor unity, the approximate capacitance of the capacitor will be:
A 10-kVA, 250 / 100-V, 50-Hz single-phase transformer gave the following open and short circuit test...
A 10-kVA, 250 / 100-V, 50-Hz single-phase transformer gave the following open and short circuit test results: Open circuit test: 250 V, 2.6 A, power factor: 0.3 on HV side. Short circuit test: 18 V, 80 A, input power: 240 W on HV side. Calculate the following: 4.1 The equivalent circuit parameters of the transformer. (6) 4.2 The efficiency at full load unity power factor. (NB the test current is not at full load) (6) 4.3 The load at which...