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generators and motors notes.notebook March 31, 2017 Electric Motors and Generators Electric Generators Use electromagnetic induction to change mechanical energy into electrical energy. The electric current changes direction each time the coil makes a half turn. This is called alternating current. Examples of Generators Nuclear Power Plant uses thermal energy from nuclear reactions to make steam, which powers a turbine. Power Plants burn coal or oil to make steam to drive the turbine. Wind wind power makes a magnet spin inside a coil of wire. Hydroelectric falling water turns the turbine.

Examples of Generators Power Plants burn coal or oil to ... · generators and motors notes.notebook March 31, 2017 Electric Motors and Generators Electric Generators •Use electromagnetic

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Page 1: Examples of Generators Power Plants burn coal or oil to ... · generators and motors notes.notebook March 31, 2017 Electric Motors and Generators Electric Generators •Use electromagnetic

generators and motors notes.notebook March 31, 2017

Electric Motors and Generators

Electric Generators• Use electromagnetic induction to change 

mechanical energy into electrical energy.

• The electric current changes direction each time the coil makes a half turn.  This is called alternating current.

Examples of Generators• Nuclear Power Plant ­­ uses thermal 

energy from nuclear reactions to make steam, which powers a turbine.

• Power Plants ­­ burn coal or oil to make steam to drive the turbine.

• Wind ­­ wind power makes a magnet spin inside a coil of wire.

• Hydroelectric ­­ falling water turns the turbine.

Page 2: Examples of Generators Power Plants burn coal or oil to ... · generators and motors notes.notebook March 31, 2017 Electric Motors and Generators Electric Generators •Use electromagnetic

generators and motors notes.notebook March 31, 2017

Transformer ­­ a device that increases or decreases the voltage of alternating current (AC).

Electric Motor• A device that changes electrical energy into 

mechanical energy.

• All have an armature, a coil or loop of wire that rotates.

Page 3: Examples of Generators Power Plants burn coal or oil to ... · generators and motors notes.notebook March 31, 2017 Electric Motors and Generators Electric Generators •Use electromagnetic

generators and motors notes.notebook March 31, 2017

Examples of Electric Motors• Fan

• What else can you think of?