A three-phase induction motor delivers 500 hp at an efficiency of 0.91, the operating power factor...
A small factory has different types of loads which are grouped together as follows A) induction motors : 1200 hp, 0.8 lag PF B) Heating loads: 100kW at unity PF A 3 phase synchronous motor is installed at the factory to improve the factory's overall power factor. Calculate how much reactively power per phase the synchronous motor must supply to the system to maintain an overall power factor of 0.9 lagging. 1 hp = 0.746 kW together as follows: a....
P3- A source supplies power to the following three load connected in parallel: (1) a light load drawing 20 kW, (2) an induction motor drawing 10 KVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading (1 hp = 0.746 kW), Determine the real, reactive, and apparent power delivered by the source. Also, draw the source power triangle.
P3- A source supplies power to the following three load connected in parallel: (1) a light load drawing 20 kW. (2) an induction motor drawing 10 kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading (1 hp = 0.746 kW). Determine the real, reactive, and apparent power delivered by the source. Also, draw the source power triangle.
1. (10 points total) A source supplies power to the following three loads connected in parallel: (1) a lighting load drawing 10 kW, (2) an induction motor drawing 10 kVA at 0.90 power factor lagging, and (3) a synchronous motor operating at 10 hp, 85% efficiency and 0.95 power factor leading (1 hp 0.746 kW). (a) Determine the real, reactive, and apparent power delivered by the source. (8 points)
THESE ARE QUESTION FROM THE TOPIC POWER FACTOR IMPROVEMENT FROM THE SUBJECT POWER SYSTEM FUNDAMENTALS PLEASE DO THE QUESTIONS STEP BY STEP AND IN NEAT HAND WRITTING THE ANSWERS ARE GIVEN WITH THE QUESTIONS 1) . A 3-phase, 400 V synchronous motor having a power consumption of 50 kW is connected in parallel with an induction motor which takes 200 kW at a power factor of 0·8 lagging. (i) Calculate the current drawn from the mains when the power...
3 phase, 37.3 Kw, 440 V, 50 Hz induction motor operates at full load with efficiency 89% and power factor 0.85 lagging. Calculate: A) The total KVA rating of capacitor required to rise full load power factor to 0.95 lagging. B) What is capacitance per phase if capacitor: 1) Delta connected. 2) Star connected.
A three-phase, unity power factor synchronous motor rated at 3200 hp (2400 kW), 327 rpm, 4000 V, and 60 Hz drives a compressor used in a pumping station on the Trans- Canada pipeline. Brushless excitation is provided by a 22.5 kW, 250 V alternator/ rectifier, which is mounted on the shaft between the bearing pedestal and the main rotor. Calculate the approximate fullload current of the 3000 hp motor if it has arn efficiency of 95%. a. b. What is...
a 3 phase 440v induction motor has produced an output power of 75 hp and full load efficiency of 91% and power factor of 83%. A calculate nominal line current B if stator resistance per phase is .1omh what are copper losses at stator ? C if losses are 1.2 kw what is power delivered to rotor d determine i2r losses in rotor . E what is slip f synchronous speed is 1800 rpm what is the speed of motor
Question 5 A 5.2 hp (1hp=746W) motor with a 0.65 lagging power factor and an efficiency of 90% is connected to a 230V, 50Hz supply. 5.1 Establish the power triangle for the load. (5) 5.2 Determine the power-factor capacitor that must be placed in parallel with the load to raise the power factor to unity. (5) 5.3 Determine the change in supply current from the uncompensated to the compensated system. (5) 17 5.4 Find the network equivalent to the above.
QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system supplies a 20 kVA, three-phase induction motor load at a power factor of 0 8 lagging, and a star-connected set of impedances, each having a resistance of 10 Ω and an inductive reactance of 8 Ω Calculate the capacitance of delta-connected capacitors required to improve the overalil power factor to 0 95 lagging [14] TOTAL 1001 QUESTION 6 (MULTI-PHASE SYSTEMS) A 400 v, 50 Hz, three-phase distribution system...