what is different the DOL Starter and Star Delta STARTER
Answer Posted / rohan k trivedi
DOL MEANS DIRECT ON LINE STARETER WE CAN USE DOL UP TO 110
KW MOTORS SPECIALLY WHERE THE STARTING TOURQUE IS LOW AND
STARTING KICK IS ALSO SMALL. WHILE STAR DELTA IS DESIGN TO
REDUSE THE HIGH STARTING KICK. GENERALLY FANS BLOWER AND
COMPERSSOR MOTORS HAVE HIGH STARTING CURRENT DURING THE
STARTING SO IT IS GOOD TO USE STAR DELTA INSTEAD OF DOL.
ANOTHER DIFFERENCE IS THAT DOL HAS ONLY ONE CONTACTOR WHILE
STARDELTA HAS THREE CONTACTOR.
| Is This Answer Correct ? | 48 Yes | 40 No |
Post New Answer View All Answers
2- What are the percentages between excitation currents in phase (R, S and T) in ∆ and Ỵ connections in excitation Current test in transformers?
Please explain me abt PQ diagaram in the power sector.
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT
explain all the classes with example
What is primary and backup protection?
What is difference between isolator and circuit breaker?
What is the function of auadag in a cro?
why and where we use early make & late break contacts in protection?
What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?
why lightning arrestor are made in two stack of insulator but why not cvt
What are the advantages of hydropower?
What is given by the definition in BIL IMP/PF = 950/395 kV. This was found in a name plate of a power transformer.
What is Auto Mains Failure Panel & Auto Synchronizing Panel
What will be result if we connect LT votage to the terminal of HT motor?