SiePortal

The integrated platform for your product selection, buying and support workflow - bringing together Industry Mall and Online Support.

Products & Services
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Support Support
{{(apiData.Support | filter:{'rank':1}:true)[0].title}} Support
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
MySiePortal MySiePortal
{{(apiData.MySiePortal | filter:{'rank':1}:true)[0].title}} MySiePortal
- Menu temporary not available
- Menue temporary not available
- {{item.title}}
Cart ({{apiData.CartCount}})

Navigation

stardelta

9/16/2014 11:29 AM	Rate (0)
Suchenden Posts: 9 Rating: (1)	in stardelta connection of motor, star connection giving high torque at low speed and delta giving low torque at low speed, how this torque variation happening? PP
Suchenden Posts: 9 Rating: (1)
Suggestion To thank Quote Answer

9/16/2014 11:34 AM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Suchenden , star connection giving high torque at low speed and delta giving low torque at low speed, PP Where did you find this information?
PISCEAN 2010 Posts: 8092 Rating: (884)
Suggestion To thank Quote Answer

9/16/2014 12:26 PM	Rate (0)
Suchenden Posts: 9 Rating: (1)	http://www.edn.com/design/sensors/4406682/Brushless-DC-Motors---Part-I--Construction-and-Operating-Principles read stator part... PP
Suchenden Posts: 9 Rating: (1)
Suggestion To thank Quote Answer

9/16/2014 12:33 PM	Rate (0)
PISCEAN 2010 Posts: 8092 Rating: (884)	Suchenden http://www.edn.com/design/sensors/4406682/Brushless-DC-Motors---Part-I--Construction-and-Operating-Principles read stator part... PP The description in the attached page is winding connection of stator windings. It also states the reason of low torque at low RPM in delta configuration. It states as follows. "The major difference between the two patterns is that the Y pattern gives high torque at low RPM and the ∆ pattern gives low torque at low RPM. This is because in the ∆ configuration, half of the voltage is applied across the winding that is not driven, thus increasing losses and, in turn, efficiency and torque." HTH.
PISCEAN 2010 Posts: 8092 Rating: (884)
Suggestion To thank Quote Answer

9/16/2014 1:16 PM	Rate (0)
Suchenden Posts: 9 Rating: (1)	thank you, so,for the normal ac motor is defferent? please give me a breif.,on star delta mode operation. PP
Suchenden Posts: 9 Rating: (1)
Suggestion To thank Quote Answer

Share this page:

Share this page on...