inductive reactance and magnetic circuit

  • Thread starter Camilo Andres Gil Cardona
  • Start date
C

Camilo Andres Gil Cardona

Guest
Hi everybody! i need to know something... does the inductive reactance
depend of the shape of the core?! i mean, if the magnetic circuit is
opened ( "I"configuration), if the magnetic circuit is fully closed
("U + I"config), or if is coreless... in which proportion it vary!?
affects this variation the magnetism strenght of the coil?! how?!
 
"Camilo Andres Gil Cardona" <camilogil@100cia.zzn.com> wrote in message
news:c54ff370.0308101019.12cedfaf@posting.google.com...
Hi everybody! i need to know something... does the inductive reactance
depend of the shape of the core?! i mean, if the magnetic circuit is
opened ( "I"configuration), if the magnetic circuit is fully closed
("U + I"config), or if is coreless... in which proportion it vary!?
affects this variation the magnetism strenght of the coil?! how?!
Click to expand...
Generally, closed-core designs have less magnetic reluctance and more
inductive reactance. At higher frequencies, other factors come into play.
 
"Charles Schuler" <charlesschuler@comcast.net> wrote in message news:<uImcnWpBNv0kOquiU-KYvw@comcast.com>...
"Camilo Andres Gil Cardona" <camilogil@100cia.zzn.com> wrote in message
news:c54ff370.0308101019.12cedfaf@posting.google.com...
Hi everybody! i need to know something... does the inductive reactance
depend of the shape of the core?! i mean, if the magnetic circuit is
opened ( "I"configuration), if the magnetic circuit is fully closed
("U + I"config), or if is coreless... in which proportion it vary!?
affects this variation the magnetism strenght of the coil?! how?!

Generally, closed-core designs have less magnetic reluctance and more
inductive reactance. At higher frequencies, other factors come into play.
Click to expand...

Oh ok! but when core is opened does the XL (inductive
reactance)change? how ?reduce or increase?!
 
Oh ok! but when core is opened does the XL (inductive
reactance)change? how ?reduce or increase?
Click to expand...
Opening the core will cause the inductive reactance to decrease.
 
"Charles Schuler" <charlesschuler@comcast.net> wrote in message news:<eM6dnZPe3vFJF6qiXTWJgA@comcast.com>...
Oh ok! but when core is opened does the XL (inductive
reactance)change? how ?reduce or increase?

Opening the core will cause the inductive reactance to decrease.
Click to expand...
mmm... so the minor reactance isn't zero ohms, this is equal to DC
resistance of the coil, o not?! (I'm almost sure of that, but almost
sure)
 
camilogil@100cia.zzn.com (Camilo Andres Gil Cardona) wrote in message news:<c54ff370.0308120854.13e7ed5e@posting.google.com>...
"Charles Schuler" <charlesschuler@comcast.net> wrote in message news:<eM6dnZPe3vFJF6qiXTWJgA@comcast.com>...
Oh ok! but when core is opened does the XL (inductive
reactance)change? how ?reduce or increase?

Opening the core will cause the inductive reactance to decrease.

mmm... so the minor reactance isn't zero ohms, this is equal to DC
resistance of the coil, o not?! (I'm almost sure of that, but almost
sure)
Click to expand...
Huh? You may want to rephrase and repost this questions, since as
presently written I (and likely others) can't make much sense out of
it. For example, what exactly do you mean by "minor reactance", and
how did DC resistance enter the discussion?

Harry C.
 
hhc314@yahoo.com (Harry Conover) wrote in message news:<7ce4e226.0308121418.19545c03@posting.google.com>...
camilogil@100cia.zzn.com (Camilo Andres Gil Cardona) wrote in message news:<c54ff370.0308120854.13e7ed5e@posting.google.com>...
"Charles Schuler" <charlesschuler@comcast.net> wrote in message news:<eM6dnZPe3vFJF6qiXTWJgA@comcast.com>...
Oh ok! but when core is opened does the XL (inductive
reactance)change? how ?reduce or increase?

Opening the core will cause the inductive reactance to decrease.

mmm... so the minor reactance isn't zero ohms, this is equal to DC
resistance of the coil, o not?! (I'm almost sure of that, but almost
sure)

Huh? You may want to rephrase and repost this questions, since as
presently written I (and likely others) can't make much sense out of
it. For example, what exactly do you mean by "minor reactance", and
how did DC resistance enter the discussion
Click to expand...



no, i just wanted to say with "minor resistance" the most low ohms
measurement of the coil, and "DC resistance" entered in the discusion
because i thought that a coil basically is a long piece of wire, and
while more long it is, more resistance it has, a resistance in direct
current level (the ohm measurement, checked with the ohmmetter in a
coil) ... well i hope you understand my idea, so if don't, tell me
again i'll try to explain it again!
Harry C.
Click to expand...
 
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