Advantages and disadvantages of DC tachogenerator

There are some advantages of DC tachogenerator which are given below.

• The DC tachogenerator has linear charactristic.
• In DC tachogenerator, temperature compensation is easily achived.
• It does not have zero speed error.
• It is capable to generate high voltage in small size.

There are some disadvantages of DC tachogenerator which are given below.

• In DC tachogenerator more torque is required.
• It has small ripples appear at output.
• The wear and tear brushes at high speed.
• Aging of permanent magnet.

DC tachogenerator