200 V d.c shunt motertakes 4A at no - Load when runing ab 7F00 V-p.m. The Field Yesistance is 10002.The resistance of the armature at stand still gives adrep of G Volt a crass almature terminals when toA were pass ed through it Calculate (i) ihe sperd, on load (if) the armature Čii) efficiency torque

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200V d.c shunt moter takes 4A at
no- Load when runing ab 700 r.p.m. The Field
Yesistance is 10002.The resistance of the armature
at stand still
gives adrop of 6 Volt a cross armature
terminals when 1o A were pass ed through it
Calculate (i) the spesd
on load
(11) the armature
čif) efficiency.
The pormal imput of motor is 8 kwa
torque
Q2:
A 4-pole ,250V series motor has a wave
Connected anmature with 1254 Cenductors. The
Flux per pole is 22 m wb wwhen the motorris
taking 50A. Iron and fricion losses amount to
1kw. Amature resistance is o-202 and series
freld resistance is oo202 Calculate :-
(i) the speed
C) the shaft torque
(ii) the efficiencyl
Transcribed Image Text:200V d.c shunt moter takes 4A at no- Load when runing ab 700 r.p.m. The Field Yesistance is 10002.The resistance of the armature at stand still gives adrop of 6 Volt a cross armature terminals when 1o A were pass ed through it Calculate (i) the spesd on load (11) the armature čif) efficiency. The pormal imput of motor is 8 kwa torque Q2: A 4-pole ,250V series motor has a wave Connected anmature with 1254 Cenductors. The Flux per pole is 22 m wb wwhen the motorris taking 50A. Iron and fricion losses amount to 1kw. Amature resistance is o-202 and series freld resistance is oo202 Calculate :- (i) the speed C) the shaft torque (ii) the efficiencyl
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