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What is the utility of plotting the occ curve of a dc generator?
Wiki User
∙ 13y ago
Generally, the plotting of open circuit characteristics curve of a dc shunt generator is used to determine the rate of change of no-load terminal voltage(same as induced emf (Eo)) with variation in field-current( I sub. f).We find from the plot that:-
a)Initially field current is zero.However due to residual magnetism at the field poles, a small amount of emf is induced.It would drive a small amount of field current according to the expression- I sub.f=Eo /R +Rsh.
b)After this ,a voltage build-up process,l be observed due to strengthening of field flux & consequently,the emf.
c)Finally, the magnetic poles tend to saturate.Hence, no significant flux-increment is observed w.r.t field current.Thus emf remains const. for higher values of field current.
Wiki User
∙ 13y ago
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Why does OCC curve become flat after certain field current?
The OCC (Open Circuit Characteristic) curve becomes flat after a certain field current because the magnetic saturation of the field winding is reached. At this point, increasing the field current does not result in a proportional increase in the generator's terminal voltage. The core material of the generator becomes saturated and can't further increase the magnetic flux.
Why does OCC curve become flat after certain field current Explain?
To avoid more accident
Define the term critical field resistance?
critical resistance is the maximum resistance beyond which the generator failed to exite. it can b found form the occ of the generator.
When was OCC Transport created?
OCC Transport was created in 1971.
Why did vinnie leave occ?
He started VForce motorcycles with Cody (from OCC).
What are the four purposes of the OCC?
What are the four purposes of the OCC, according to its own mission statement?
How much does rick from occ make?
He makes $13,000 per episode he is in plus his salary from OCC.
How much does Vinny DiMartino from OCC make per episode?
Vinny DiMartino of OCC makes about $50,000 per episode.
How much is occ worth?
10,000,000
What is the market cap for Optical Cable Corporation OCC?
As of July 2014, the market cap for Optical Cable Corporation (OCC) is $29,608,972.53.
What member of the occ died?
All of them i hope
Does paul jr from occ have children?
Not yet
