Is there thumb rule to calculate how many Insulators to be used for Transmission line of different volatges

3 Answers   CS,

---

what is means of ALF,kPV(min),lexc(max)at Vk,Rct@75 degree centrigate ohm in current transformer name plate?

2 Answers  

---

Here iam a question with SYNCHRONIZATION PANNEL related issue, as i want to design a SYNC.pannel board iam giving the 2 nos of 1MVA Generators to sync pannel , then what wil be the out put of the sync pannel, whether it wil be one cable coems from the sync panel or two cables.. as iam using two transformers to meet my load demand, so pls clear me whether two cables comes from sync panel to connect to transformers or only one cable

3 Answers  

---

Maximum efficiency occurs in electrical machines is at i)Full load,ii)50% of full load,iii)Near full load,iv)None of these

1 Answers   IFFCO,

---

What is the simplest formula to calculate the rotor diameter of a synchronous generator?

0 Answers   PEI,

---

If the generator will trip, what you will do as an electrical technician in charge.

1 Answers  

---

what is the use of neutral displacement relay

1 Answers   OCL,

---

why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

---

Why we transmit the power at the voltage in the multiple of 11 or 1.1 like 11kv, 22kv, 66kv, 132kv...... some one told me that it is due to fomr factor 1.1 of sine wave. its fine but while transforming we can choose any voltage, so why only multiple of 1.1 there also.......? plz tell me.

7 Answers  

---

Can we step up a 230V supply to 400V using a single phase transformer??

2 Answers  

---

in the case of 6.6kv motor starter combination contain fuses on it VCB. but in 11KV motor starter combination Fuses are not using in it's VCB why?

0 Answers  

---

What are the loading factors to be considered for transformer sizing/selection?

3 Answers  

---