Power at 50Hz vs 60HZ??
Power at 50Hz vs 60HZ??
(OP)
We are going to be building some electrical resistance heaters for a project in England (50Hz). All prior woirk has been here in the US at 60Hz.
Besides the obvious adjustment for the different operating voltage, do I need to make any adjustment in my calculations to determine the heater power output and/or operating amperage to account for the lower 50Hz frequency? Will my amperage or heater power output change at the lower frequency?
Thanks.
Besides the obvious adjustment for the different operating voltage, do I need to make any adjustment in my calculations to determine the heater power output and/or operating amperage to account for the lower 50Hz frequency? Will my amperage or heater power output change at the lower frequency?
Thanks.






RE: Power at 50Hz vs 60HZ??
If however you have a fan motor in the heater you should take care to ensure that the motor is suitable for the 50hz supply. The fan will turn more slowly on a 50Hz supply than on 60hz and you will also have to account for this as well as the voltage/frequency change.
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One day my ship will come in.
But with my luck, I'll be at the airport!
RE: Power at 50Hz vs 60HZ??
Heat(Watts) = Irms.Vrms=Idc.Vdc.
As ScottyUK mentioned above, the frequency do not have any impact on the resistance heater capacity.
RE: Power at 50Hz vs 60HZ??
acre = care
Dc = DC
whather = whether
I wish we had a spell-checker!
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One day my ship will come in.
But with my luck, I'll be at the airport!
RE: Power at 50Hz vs 60HZ??
RE: Power at 50Hz vs 60HZ??
RE: Power at 50Hz vs 60HZ??
RE: Power at 50Hz vs 60HZ??
Another concern is going to be your controller for the heating elements. If it is SCR based, make sure it can be adjusted to the different frequency to that the SCR firing is not off. If it is just a contactor, make sure you have a 50Hz rated coil. Most 60Hz coils will work on 50Hz without much trouble, but some designs may be weaker and become problematic.
ScottyUK, no you are NOT forgiven yet. You must do pennance first. Repeat 5 Kirchoff's Laws, 3 Lenz's Laws and recite the Ohm's Wheel in Latin.
davidbeeh,
Great idea, except it would mean having to use IE, YUCK!
RE: Power at 50Hz vs 60HZ??
Thanks. I will give it try.
jraef,
Pennance = penance?
See you at confession!!
----------------------------------
One day my ship will come in.
But with my luck, I'll be at the airport!
RE: Power at 50Hz vs 60HZ??
RE: Power at 50Hz vs 60HZ??
Oh, and a few minor stretches of the truth...
RE: Power at 50Hz vs 60HZ??
Gunnar Englund
www.gke.org
RE: Power at 50Hz vs 60HZ??
Shame on you for not using the ubiquitous Google!!
http://www
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One day my ship will come in.
But with my luck, I'll be at the airport!
RE: Power at 50Hz vs 60HZ??
RE: Power at 50Hz vs 60HZ??
Good Luck
johnwm
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RE: Power at 50Hz vs 60HZ??
http://toolbar.google.com/?promo=mor-tb-en
RE: Power at 50Hz vs 60HZ??
"skogsgurra" still wondering what penance is? It's what you pay or do, an act of contrition, confession, acceptances of punishment, absolution. Therefor to get back into the grace of god. It could amount to a few words of prayer or a whole lot more in some circles.
Here lets leave it to a few words. ok! and You've said them many a time, I'll be your witness. Thou shall be forgiven.
Am I feeling benevolent or what!!
Regards
pennpoint