Transformers - CEU
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1
Heat generated by losses must be removed to prevent deterioration of the transformer's insulation system, and the actual magnetic properties of the core.
2
A transformer operates when a source of AC voltage is connected to the _____ winding and a load device is connected to the secondary winding.  Drag and drop the correct choice into the empty box.
3
A transformer designed to be cooled by air is a _____ transformer.
4
Most of the energy provided to the primary winding of a transformer is transferred to the secondary winding. But, some energy is lost in the form of _____.
5
Electromagnetic inductions are the lines of magnetic force surrounding a magnet or electromagnet.
6
Power transformers are used to supply voltages to the various circuits in electrical equipment.
7
The production of an electric current across a conductor moving through a magnetic field. It underlies the operation of generators, transformers, induction motors, electric motors, synchronous motors, and solenoids.
8
A pole-type _____ transformer is used to supply relatively small amounts of power to residences.  It is used at the end of the electrical utility's delivery system. 
9
For measuring values of current or voltage, it is desirable to use standard low-range measuring instruments together with specially-constructed _____ transformers.
10
A transformer does not generate electric power it simply transforms it from one voltage to another.
 
   



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