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detski
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How to compute for the torque developed in the shaft of the motor??
A DC series motor takes 40 A at 220 V and runs at 800 rpm. If the armature nd field resistnces are 0.2 ohm and 0.1 ohm respectively and the iron and friction losses are 0.5 KW. find the torque developed in the shaft of the motor. What will be the output of the motor?
What i did was:
EC= 220-40(.2+.1)
EC= 208
Power of the armature= (0.2)(40)^2=320
power of the field= (.1)(40)^2=160
Poutput= 8.8K-320-160-.5K
Poutput= 7820
7820=(2*pi*800*Torque)/60
Tout=93.34 Nm
My problem>> I don't know what's next..
Is the Friction & Iron Losses same as the SPL of it?
Homework Statement
A DC series motor takes 40 A at 220 V and runs at 800 rpm. If the armature nd field resistnces are 0.2 ohm and 0.1 ohm respectively and the iron and friction losses are 0.5 KW. find the torque developed in the shaft of the motor. What will be the output of the motor?
Homework Equations
The Attempt at a Solution
What i did was:
EC= 220-40(.2+.1)
EC= 208
Power of the armature= (0.2)(40)^2=320
power of the field= (.1)(40)^2=160
Poutput= 8.8K-320-160-.5K
Poutput= 7820
7820=(2*pi*800*Torque)/60
Tout=93.34 Nm
My problem>> I don't know what's next..
Is the Friction & Iron Losses same as the SPL of it?