Answer to Question #116257 in Electrical Engineering for parick osei

Question #116257
A cast steel frame is to be used as the core of an inductor.



An 800 turn coil is wound on the centre limb of the frame which has two similar outer limbs in parallel with each other.

The frame has the following parameters:

Outer limb: c.s.a. of 2000 mm2 and length of 700mm.

Centre limb: c.s.a of 4000 mm2 and length of 250 mm.



Determine the coil current to set up a flux of 1mwb if a saw-tooth (an air-gap) of 1mm is cut in the centre limb.



The relative permeability of steel is 1000.
1
Expert's answer
2020-05-19T09:13:49-0400


Gap length: 

Outer limb (core) length: 

Outer limb (core) area: 

Gap area: 

Central limb length:

Calculate the magnetic reluctance:


The magnetic circuit can be calculated like an electric circuit, but with flux instead of current and with magnetomotive force instead of voltage (see the equivalent circuit above):


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS