Detuned Reactor Factor!
Posted 23 May 2010 - 03:51 PM
I'm a new member, and i have read some topic and comment about the detuned reactor. So I have a little knownlege about this one. I know that the reactor factor (5%, 7%,...) relate with the frequency resonance. ( I see that fr/f1=1/sqrt(%p)).
When I see in the catalogues of some company, I see that they choose the frequency fr are 2.7 (13.7%), 3.8 (6.9%), 4.3 (5.4%) . . .
So, I want to know why people choose these frequency? why not choose the other?
Thank and best regards!
Posted 23 May 2010 - 07:47 PM
Detuning reactors are chosen to provide a series resonat frequency the is well away from harmonics and to provide an inductive reactance to the harmonic voltages present in the supply.
Typically 5% and 7% reactors are used where the inductive reactance is equal to 5% or 7% of the capacitive reactance. Note, this is related to the capacitive reactance, not the frequency.
I think that you are geting confused by two diferent ways of rating the reactors rather than wildly different values.
Mark Empson | administrator
Skype Contact = markempson | phone +64 274 363 067
LMPForum | Power Factor | L M Photonics Ltd | Empson family | Advanced Motor Control Ltd | Pressure Transducers | Smart Relay | GSM Control | Mark Empson Website | Soft Starters
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users