|
Audio Asylum Thread Printer Get a view of an entire thread on one page |
For Sale Ads |
71.189.127.11
I have been using several Hammond 193L chokes in my system. As recommended I have wired the two leads from the choke to AC plus and AC neutral very close to the component using an AC cable "splitter." I believe this allows the choke to filter in parallel the high frequencies from the AC.
I am curious as to what would happen if the choke was wired with one lead going to the AC plus and the other going to AC ground. Would this actually shunt the high frequency noise to earth?
One reason I ask is that I have an Equitech balanced transformer at the head of the system and I thought it might be interesting to filter only one leg (60V) of the AC.
Follow Ups:
What you have done is extremely dangerous. I recommend that you not install anything in the AC line that has not been UL approved for use at line voltages. What you have done is install a 57 ohm resistor between hot and neutral that has some minimal inductance (5H). There is over ONE AMP of current running through this choke rated for 300 mA! That is THREE TIMES THE CURRENT FOR WHICH THE DEVICE IS RATED!
My advice: ensure that your fire insurance is fully paid.
How does a 300mA @ 800VDC spec'd rating compare to a 1A @ 120VAC load ?- Current is increased by 3.3X.
- Voltage is decreased by 6.6X.
- Load is changed from DC to AC (DC is normally spec'd less than AC).
- 300mA @ 800VDC is 242 watts
- 1A @ 120VAC is 120 watts (half the load ?)Would this put the 1A @ 120VAC current well within the safety margin of the Hammond 192L Choke rated in VDC?
TIA
Edits: 04/08/18
Exactly. On top of everything else mentioned, a choke has rising impedance at high frequencies. It is doing nothing being in parallel with the AC line to filter HF noise. It needs to be in series. What you need is an X or Y rated capacitor across the line.
In answer to part two. The Equi-Tech has a GFCI protector. If there is as little as 5ma of current flowing to ground, the GFCI will trip.
Dan Santoni
+1 on Type X across the line.
"The needs of the many outweigh the needs of the few or the one"
Vulcan Proverb
Post a Followup:
FAQ |
Post a Message! |
Forgot Password? |
|
||||||||||||||
|
This post is made possible by the generous support of people like you and our sponsors: