5. a) A 900V DC series motor is rated at 388 HP, 3000 RPM. It has an armature resistance of 0.5 and a field resistance o

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899603
Joined: Mon Aug 02, 2021 8:13 am

5. a) A 900V DC series motor is rated at 388 HP, 3000 RPM. It has an armature resistance of 0.5 and a field resistance o

Post by answerhappygod »

5 A A 900v Dc Series Motor Is Rated At 388 Hp 3000 Rpm It Has An Armature Resistance Of 0 5 And A Field Resistance O 1
5 A A 900v Dc Series Motor Is Rated At 388 Hp 3000 Rpm It Has An Armature Resistance Of 0 5 And A Field Resistance O 1 (121.51 KiB) Viewed 15 times
5. a) A 900V DC series motor is rated at 388 HP, 3000 RPM. It has an armature resistance of 0.5 and a field resistance of 0.02 22. The machine draws 450 A from the supply when delivering the rated load. The magnetic saturation is to be ignored. Determine:- (i) The rated developed torque [4 marks] [3 marks] (ii) The rated efficiency (iii) The rotational losses at rated speed [2 marks] (iii) The speed when the load is changed, causing the line current to drop to 100A. [5 marks]
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”