A 100MVA, 50HZ turbo generator operates at no load at 3000 rpm. A load of 25MW is suddenly applied to machane and steam value to the turbine commences to open aficr 0.6 scc due to governor timc lag. - Assuming inertia constant H=5 kWsec/kVA of the generator rating. Frequency (in-Hz) to which steam flow commences to meet the new load? (49.2542)

A 100MVA, 50HZ turbo generator operates at no load at 3000 rpm. A load of 25MW is suddenly applied to machane and steam value to the turbine commences to open aficr 0.6 scc due to governor timc lag. - Assuming inertia constant H=5 kWsec/kVA of the generator rating. Frequency (in-Hz) to which steam flow commences to meet the new load? (49.2542)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A (160+Reg. No.) kN force is applied as shown at the end of a hot-rolled steel beam. Neglecting the effect of fillets and of stress concentrations, perform calculations in MS excel or MATLAB for the principal stresses in the beam to satisfy a design specification that they be equal to or less than 150 MPa. If the principal stresses are more than the given value, what would you change in the beam so that satisfy the required stresses. 210 mm 13 mm a 1035 mm 110 mm 160kN +Reg No. 0.4m (b) (a) Figure: Hot-rolled cantilever steel beam a) 3D view of the beam b) Cross-section of the beam
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For the direct shear example shown below, if F = 33 kN, AAB = ACD = 2146 mm2, the average shear stress in the internal vertical surface AB (or CD), = ______ MPa. Calculate your answer to 1 decimal place.
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QUESTION 1 PART A AND B
The principal stresses represent the maximum and minimum normal stress at the point. True False
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