Answer / swati

Transformer is a static device which transfer the electrical energy(power)from one circuit to another without change in frequency.It has 2 windings which has magnetically coupled but electrically isolated.

Answer / venkat.v

Transformer is static device which converts voltage levels
(step up/ step down) without change in freqency. Its works
on farady laws of electro magntic princple

what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?

0 Answers  

---

Different types of relay fault which phase sequence??

0 Answers  

---

We know that primary transmission is done to reduce current so that i^2*r loss could be minimised but according to ohm's law v is directly proportional to i,which indirectly means higher potential difference means larger current?so how the current is minimised in high power transmission line??

2 Answers  

---

How they LT panel busbar size choose

0 Answers  

---

in thermal power plant the steam produced is made to cool after falling on the turbine blades. my question is why this is done while the same is needed to heat up again. "jab pani ko wapis garam hi karna hai to thanda kyu karte hai"

11 Answers   Bhel,

---

how to find insulation resistance of a motor(415v) by theoretical formula??

2 Answers  

---

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

0 Answers  

---

How the Transformer oil testing is done & Why oil dielectric goes LOW & what is solution for that ??

3 Answers   NTPC,

---

please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com

0 Answers  

---

how to find Harmonics and types as per the equipemnts

0 Answers  

---

Why neutral has to switch on-off with phase in TN IT TT systems i.e neutral should be taken as fourth pole

1 Answers  

---

what are the names and size of various conductors used in transmission lines

1 Answers   NTPC, Power Grid,

---