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1 Week Ago
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A Million Facts & Figures
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Join Date: Jan 2005
Location: Famous Potatoes
Posts: 10,512 Sportster/Buell Model: XL883 Sportster/Buell Year: 2007 Sportster/Buell Model #2: Buell Cyclone Sportster/Buell Year #2: 1999
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Technically, that's a mixture of Ohm's law and Watt's law.
Also, that "VA" in the Watts quadrant is really misleading. I know he means volts times amps, but the term "VA" has a different meaning than watts when it comes to AC circuits and reactive loads, because the current and voltage aren't in phase.
Last edited by aswracing; 1 Week Ago at 16:37..
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1 Week Ago
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Senior Master Custom Bike Builder
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Join Date: Apr 2012
Posts: 14,142 Sportster/Buell Model: 1200S Sportster/Buell Year: 2002 Sportster/Buell Model #2: XLH883 Sportster/Buell Year #2: 2003 Other Motorcycle Model: Moto Guzzi V7-850 SE Other Motorcycle Year: 2023
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Volts Amps Reactance (VARS) is a measurement of current lagging behind voltage with an inductive load. In the summer, with high inductive load from air conditioning, capacitors are added to power lines to offset the inductive load, referred to as power factor correction. For M/C load application, volts x amps is VERY close to wattage.
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Jul 2008
Posts: 11,434 Sportster/Buell Model: 1200s Sportster/Buell Year: 2001 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1974
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you are also missing the point
the HD regulator is a series unit, it is NOT like a PWM regulator that controls its own destiny.
the protection circuit is what shunts any current to ground. IF the pmg is with in the zener control range , there is NO gate current so NO current flows to ground.
if the stator becomes saturated the is NO counter emf so resistance drops and current rises, hence over current protection is needed.
even on wind turbines there are safe guards to prevent this, mostly to control speed as that is easiest then over current next. if you control speed, you control output, hence probably one of my problems as i often take her to the limits.
anywho, not material, just wanting to know what the life expectancy was, from what i am seeing here, i am in the normal range.
since i am a tinker, i will experiment before i drop cash for a new one.
she'll have to wait as i have a steel guitar on the bench in want of some powder coat before the undercarriage begins. i do appreciate your input, and i do respect your opinions.
it should be a simple operation unlike the buffer i was forced to rewind.
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1 Week Ago
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Land Speed Record
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Join Date: Jan 2019
Location: UK
Posts: 711 Sportster/Buell Model: XL1200T Sportster/Buell Year: 2017
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Quote:
Originally Posted by sportsterdoc
In the summer, with high inductive load from air conditioning, capacitors are added to power lines to offset the inductive load, referred to as power factor correction. For M/C load application, volts x amps is VERY close to wattage.
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Power factor correction has been going on in industrial units running electric motor driven machines since probably forever.
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1 Week Ago
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XL FORUM TEAM MEMBER
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Join Date: Jul 2008
Posts: 11,434 Sportster/Buell Model: 1200s Sportster/Buell Year: 2001 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1974
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hummmmm, power factor correction
maybe i need to put a piece of wood inside the throttle housing
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6 Days Ago
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Dazed & Confused
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Join Date: Feb 2019
Location: Never Never Land
Posts: 3,661 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2017 Other Motorcycle Model: BMW R9T Other Motorcycle Year: 2015
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Quote:
Originally Posted by Tomcatt
'17 1200C
Mine failed at 31,000 miles. It shorted to ground.
Replaced it with an aftermarket stator. Would have gone Cycle Electric 3 phase but they don't have charging system pieces for the newer Sportsters.
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Just an addition to my previous post.
My staor leads showed proper continuity. They also showed continuity (dead short) to ground.
After removal from the bike the leads still showed proper continuity plus (dead short) continuity to the stator.
I was running Redline GL-5 gear oils in the primary /trans. NO evidence it had compromised the copper wires.
If Cycle Electric starts offering a regulator or 3 phase system I'll be upgrading.
__________________
2017 XL1200C in SE Wisconsin, USA
Last edited by Tomcatt; 6 Days Ago at 01:56..
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3 Days Ago
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XL FORUM TEAM MEMBER
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Join Date: Jul 2008
Posts: 11,434 Sportster/Buell Model: 1200s Sportster/Buell Year: 2001 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1974
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well you are in luck, they do make 3ph regulators
just because it is BT does not mean the XL cannot use them, just remember to factor in the correct amp capability.
there are also many companies that offer the stator also.
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