Answer / nagesh.patwari

Due to stationary flux produced in core No emf induced when applied a DC supply sugnal.

how you connect the induction motor first in star and then delta in star-delta starter

1 Answers  

---

What may be happen if neutral and earth is shorted in a substation

3 Answers   Bureau Veritas,

---

what is dol starter

1 Answers  

---

1.What is wind span ,wight span and normal span, and what is the difference for 132kv transmission .

1 Answers   PKR,

---

What is the vector group of a transformer,how can it be found out?

0 Answers   Jindal,

---

When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

---

what is the deference between watt and KVA

3 Answers   IAF,

---

WHY IS HV WINDING OF A TRANSFRMER SECTIONALIZED???

3 Answers  

---

what is transformar load balancing ?

2 Answers   L&T,

---

what r the sizes of CB's? how to select CB's?

1 Answers  

---

how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

0 Answers  

---

why steady state stability limit is greater than transient stability limit ? How it can be explained ?

0 Answers  

---