4.3a Identifying/Uses Motors and Generators

What is this?

• armature

• field coil

• ammeter

• winding

What is this?

• field coil

• motor

• armature

• spring

What is this?

• separately excited series wound generator

• separately excited shunt wound generator

• series wound motor

• shunt wound motor

What is this?

• series wound generator

• shunt wound generator

• series wound motor

• shunt wound motor

What is this?

• series wound generator

• shunt wound generator

• series wound motor

• shunt wound motor

What is this?

• series wound generator

• shunt wound generator

• series wound motor

• shunt wound motor

What is this?

• series wound generator

• shunt wound generator

• series wound motor

• shunt wound motor

What is a separately excited DC series generator used for and why?

• In laboratories as has a low internal resistance

• In laboratories as has high internal resistance

• Regenerative braking in trains as provides a constant current

• Regenerative braking in trains as provides a constant voltage

What is a DC series generator used for and why?

• In laboratories as has a low internal resistance

• In trains as provides high torque on start up.

• Regenerative braking in trains as provides a constant current

• Regenerative braking in trains as provides a constant voltage

What is a DC series motor used for and why?

• In fans as there is no harsh starting conditions and constant speed required.

• In trains as provides high torque on start up then variable speed.

• Regenerative braking in trains as provides a constant current

• Regenerative braking in trains as provides a constant voltage