Design DOL / Star-Delta Starter
May 2, 2013 20 Comments
- Calculate Lock Rotor Current.
- Calculate Motor Starting Current.
- Calculate Motor Full Load Current.
- Calculate Non-time Delay/Time Delay fuse Size.
- Calculate Circuit Breaker Size.
- Calculate Overload Relay setting.
- Calculate Type of Contactor.
- Calculate Size of Main Contactor.
- Calculate Size of Star Contactor.
- Calculate Size of Delta Contactor.
- Standard Arrangement of Main and Auxiliary Contactor
JIGNESH PARMAR
sir, i have read that a single phase motor will be only upto 2 HP….also DOL starters are use for 3 phase motors upto 5 HP…then why did u design a DOL starter for a single phase 3 HP motor??
Selection of all Parameter shown in Sheet are just Demo only..You can select it according to your requirements..
By the way Who told you that DOL is used up to 5HP only !!!!..any 1Phase motor are available up to 2HP only !!!!
Thanks for your great work, man..
what is the formula for Volatge regulation of 11KV distribution line .suppose we have 3MVA 33/11KV s/s and we have to give power supply to the 200KVA ,11/0.4 s/s for industrial load(Proposal ) and it is covered 0.2KM .so what is the volage regulation for that proposal point ?
New Post on this Topic will be released on tomorrow.
Thanks for your great work, sir
very helpfull
thanks for your information and very useful in electrical student
Thank you very much Sir for all these information in one stoke!!!! i m grateful to you.
Hi Sir,
Is the calculation on the blog or theres a download link? I cant seem to see the download link.
Obviously Download link is there…Just press “Free Downloading”
Hi,
I am willing to learn electrical. Basically i am instrumentation engineer. i am not able to find a right way to learn about electrical. Please guide me where should i start from.
Thanks & Regards,
S.Karthikeyan
u r realy great sir……….
very nice
Hi sir
thank you very much sir for all quastion & answer information in one stock……
i am GREATFULL to YOU.
sir ur calculation for dol & star delta download as deleted by user it showing.
pls tell me how to get this……..
what is the suitable relay for 15 hp star delta motor
please provide estimation and BOQ excel sheets and softwares
I have an air compressor that has a Wye Start Delta Run start up. While doig some current tests we noticed 40 Amps more leaving the contactore than coming in on the mains. I would like to send you an attachment to better explain what we are showing but when you add what is going out on the two conactors it is more than what is coming in on the main conductors (one set of three). Can I send you my drawing?
thank you very much for great work