Answer Posted / gunasekaran

this is important for parallel operation vector group should
be same another one is vector group is changed polarity of
the transformer also change it YNyn0 become YNyn6 if it is
changed

solar inverters was not connected to the nuteral link .this nutwral possible to any other systems

1328

---

sourse is 66 KV / 350 MVA, transfarmer is 1000 KVA 6.6 / 0.415 kv, iF fault is 28.75 MVA on 0.415 KV Bus then calculat the Transfarmer Impidance

1636

---

my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1449

---

difference between high and low impedance BUS BAR relay??

1054

---

what is invertor supply and raw powersupply

1514

---

---

List the advantages of star-delta starter with induction motor?

596

---

Explain different types of d.c motors? Give their applications

636

---

what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

1533

---

what is maxemo work permit procedure

1665

---

what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

1506

---

What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?

855

---

1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?

2273

---

What is the fault or needs to be done when frequency in ac drives is not changing?

1197

---

What is the breaking capacity of transformer and how can we calculate the breaking capacity of tranformer

1237

---

what is differnce btwen lll and lllg faults

1499

---