Write the advantages and disadvantages of hopkinson’s test.
Answers
Answered by
1
Disadvantages
It requires two identical machines.
The results are not accurate when compared to brake test this is because of during total stray losses equally among two machines whose excitations are different.
In hopkinson test the armature emf's of two machines must be different to make the power generation possible. of Hopkinson's test:
advantages of Hopkinson's test:
It is accurate when compared to swinburne test since the stray losses are calculated at each load current.
The actual performance of the machines regarding commutation and temperature rise can be conveniently studied because the machines can be tested under full-load conditions for long duration.
Hopkinson test is very economical due to the power regeneration
Similar questions