EcoRenovator - View Single Post - Save electricity with a 2 speed pool pump

ICanHas · 08-09-14, 06:10 PM

Under 10% THD on the LINE so that high power, high harmonic devices that cause power quality issues and distribution inefficiencies do not get spec'd out.

You're comparing electric car propulsion which must literally operate from zero to operating speed over a widely varying loads. Use of VSD is very well accepted in traction CONTROL or accelerating something that is very very very heavy, like refinery machinery.

Why can't synchronous motor be made to work as 2 pole/4 pole configuration?

08-09-14, 06:10 PM	#31
ICanHas Banned Join Date: Aug 2014 Location: US Posts: 150 Thanks: 7 Thanked 5 Times in 5 Posts	Under 10% THD on the LINE so that high power, high harmonic devices that cause power quality issues and distribution inefficiencies do not get spec'd out. You're comparing electric car propulsion which must literally operate from zero to operating speed over a widely varying loads. Use of VSD is very well accepted in traction CONTROL or accelerating something that is very very very heavy, like refinery machinery. Why can't synchronous motor be made to work as 2 pole/4 pole configuration? Last edited by ICanHas; 08-09-14 at 06:17 PM..