Engineering, 03.04.2020 20:22, KaseyT

A two pole, 850 kVA, 2400 Vrms, 60 Hz, three-phase synchronous machine acting as a generator has a syn-chronous reactance of 7.5 a and you can assume the armature resistance to be negligible. It operates at the rated open circuit voltage with a field current of 175 A. Analytically find: (a) 10pts. The magnitude of the field-to-armature mutual inductance. (b) 10pts. The internal voltage value for a load of 750 kW at unity power factor. (c) 10pts. Using a MATLAB script m-file (not a Simscape simulation) create a plot for the constant load power in (b) while varying the field current to archive a maximum and minimum values of 850 kVA leading/lagging. Find the value of the field current that produces the minimum terminal current value. Rel. Date: 3/22/20 Michigan Technological University 2 of 3

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 15:10, brooklyn674

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Answers: 3

continue

Engineering, 04.07.2019 18:10, hadellolo8839

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Answers: 3

continue

Engineering, 04.07.2019 18:10, niicoleassssssf

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

Answers: 2

continue

Engineering, 04.07.2019 18:10, abdirahmansoloman

Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?

Answers: 1

continue

Do you know the correct answer?

A two pole, 850 kVA, 2400 Vrms, 60 Hz, three-phase synchronous machine acting as a generator has a s...