Answer / manish

Direct On Line( DOL) starter takeS Full load current
Ist=Ifl But STAR/DELTA starter which during starting of
motor , connected terminals with STAR which limits Ist
=Ifl/1.732*Ifl. Thus starting current can keep with in
limit.

Answer / erharisheee51

DOL TAKES FULL LOAD CURRENT WHERE AS STAR DELTA STARTER LIMITS THE STARTING CURRENT BY FIRST STARTS AT STAR THEN CONVERT IN TO DELTA , WHER EIN STAR IT LIMITS BY I/1.732, IN THE PLACE OF STAR DELTS STARTER WE SHOULD NOT USE DOL- DIRECT ON LINE STARTER , WHICH IMMEDIETLY STARTS AT FULL SPEED.

Answer / sivananda samantara

dol strater used in small amount of load sector,stardelta
strater used in big amount of load.stardelta used for
control first pick load then convert to normal by timer
setting.

What is the difference b/w earthing & grounding?

6 Answers  

---

why capacitor is placed in fan

4 Answers  

---

What is difference between earth leakage relay and restricted earth fault relay ?

22 Answers  

---

What happened to installed high capacity conductor for smaller current rating?

1 Answers  

---

1.why are not using acb 33kv ht side? is there any problem 2.what is difference between acb,vcb,sf6 breackers? 3.what is the function of invertor and convertor in ups?

0 Answers   L&T,

---

Why Magnetic Core Balance test is performed only on Star side of Transformer and not on Delta Side of Transformer (Vector Group Dyn11)?

1 Answers  

---

what is the difference between RTD & TERMO COUPLE?

1 Answers  

---

what ispositive, negative, zero sequence impedence?

0 Answers  

---

why neutral and body earthing of transformers kept separated? what is distance between two is required as per is?

6 Answers  

---

why ac supply neutral should earth not in dc (-)

2 Answers  

---

what is meant by GOD in transmission system ?

6 Answers   Reliance,

---

how to get 48 V DC I have ... 1. 12 volt power supply board 2. DC power supply ( max. 30 v) 3. 9 volt batteries ( 2 - not chargeble)

2 Answers  

---