Which transformer is used to trap the harmonics on the primary windings?

Which transformer is used to trap the harmonics on the primary windings?

a) k-type transformer
b) core type transformer
c) potential transformer
d) shell type transformer
e) Autotransformer




Answer: A

Double-wound transformers can be connected as?

Double-wound transformers can be connected as?

a) current transformer
b) core type transformer
c) potential transformer
d) shell type transformer
e) Autotransformer





Answer: E

Iron loses in a transformer are caused by?

Iron loses in a transformer are caused by?

a. Eddy currents
b. Magnetic hysteresis
c. Harmonic distortion
d. All of the above
e. A and B




Answer: E

All of the primary and secondary is wound on the centre leg. This transformer is called?

All of the primary and secondary is wound on the centre leg. This transformer is called?

a) current transformer
b) core type transformer
c) potential transformer
d) shell type transformer
e) resistance indicator





Answer: D