Why does applying a rated load slow down a motor?
Since applying a rated load would slow down the motor to its rated speed, the difference between rated speed and synchronous speed is the existence of the rated load.
Why do idle RPMs go up and down?
The higher idle allows the engine to run while the air fuel mixture and timing are less than optimal. On the car with the idle that was going up and down, the ECU was likely trying to calibrate the inputs and output to get the idle where it needs to be.
What causes a motor to speed up or slow down?
The motor either speeds up or slows down according to the load torque. It is ideal to size a motor properly so you can operate closer to maximum efficiency (rated torque and rated speed). Look at the speed-torque curve below for an AC induction motor.
How do you adjust the idle speed on an outboard motor?
Look up the idle speed specifications for your outboard in your service manual. It will recommend a maximum idle speed for a warm engine. Use a screwdriver to turn the idle speed stop screw clockwise to increase the rpm, and counterclockwise to decrease it. Click to see full answer.
The higher idle allows the engine to run while the air fuel mixture and timing are less than optimal. On the car with the idle that was going up and down, the ECU was likely trying to calibrate the inputs and output to get the idle where it needs to be.
Is it normal for a bike to increase its idle speed?
It is normal for curb idle to increase several hundred RPMs as full operating temperature is achieved. Caution: a “good” idle speed when half warmed up will be too high when fully warmed up, so you must accept the inevitable requirement for some “throttle nursing” until the bike is fully warm.
Since applying a rated load would slow down the motor to its rated speed, the difference between rated speed and synchronous speed is the existence of the rated load.
The motor either speeds up or slows down according to the load torque. It is ideal to size a motor properly so you can operate closer to maximum efficiency (rated torque and rated speed). Look at the speed-torque curve below for an AC induction motor.