e top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed of e governor in that position. [Ans. 15 r.p.m.] loaded governor of the Porter type has equal arms and links each 250 mm long. The mass of each Il is 2 kg and the central mass is 12 kg When the ball radius is 150 mm the valve is fully onen and

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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3.
In a Porter governor, the mass of the central load is 18 kg and the mass of each ball is 2 kg. The top
arms are 250 mm while the bottom arms are each 300 mm long. The friction of the sleeve is 14 N. If
the top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed of
the governor in that position.
[Ans. 15 r.p.m.]
A loaded governor of the Porter type has equal arms and links each 250 mm long. The mass of each
ball is 2 kg and the central mass is 12 kg. When the ball radius is 150 mm, the valve is fully open and
when the radius is 185 mm, the valve is closed. Find the maximum speed and the range of speed. If the
maximum speed is to be increased 20% by an addition of mass to the central load, find what additional
mass is required.
JAns. 193 r.p.m. ; 16 r.p.m.; 6.14 kg)
Transcribed Image Text:3. In a Porter governor, the mass of the central load is 18 kg and the mass of each ball is 2 kg. The top arms are 250 mm while the bottom arms are each 300 mm long. The friction of the sleeve is 14 N. If the top arms make 45° with the axis of rotation in the equilibrium position, find the range of speed of the governor in that position. [Ans. 15 r.p.m.] A loaded governor of the Porter type has equal arms and links each 250 mm long. The mass of each ball is 2 kg and the central mass is 12 kg. When the ball radius is 150 mm, the valve is fully open and when the radius is 185 mm, the valve is closed. Find the maximum speed and the range of speed. If the maximum speed is to be increased 20% by an addition of mass to the central load, find what additional mass is required. JAns. 193 r.p.m. ; 16 r.p.m.; 6.14 kg)
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