Answer / veeru

it is working on the self induction principle but where as
normal t\f works on the principle of mutual induction.it has
only one winding

Answer / raji g

AN AUTO TRANSFORMER IS A SINGLE CORE TRANSFORMER COPPER
WINDINGS ARE WOUNDED ON THEM
WE CAN USE THIS TRANSFORMER WHERE WE WANT REDUCE THE THE
SUPPLY VOLTAGE AND ALSO INCREASE THE VOLTAGE.


eg. LABORATORIES

Answer / kotike chaitanya bharghav

In auto transformer
we can reduce the amount
of copper but in the case of
normal 2 winding t/r
require more copper for
winding
and also there is lot of
losses in normal transformer

3phase lt motor winding how to checking with megger

1 Answers  

---

what will be the breaking capacity of MCCB of 1000kVA (6% Impedence) transformer? Voltage being 415V, Power Factor 0.8.

2 Answers   BPC,

---

I am apply the AAI. So i want electrical sample question paper in technical with answer my id is vijayjobsmart@gmail.com

0 Answers   AAI Airports Authority Of India,

---

i want to ask that as everybody knows that in star connection on star point is called neutral. my question is that why on that poin called neutral. what is the reason behind it. what is the logic behind it. i heared somewhere that on this point all phases current become zero thats why. if this answer is right then prove why on that point is current become zero. if this answer is not right then tell me the right answer. post ur answer here or on my mail address. m.ikram786@yahoo.com m.ikram555@gmail.com. thanks.

1 Answers  

---

What is DPR relay, And what for??

2 Answers   Engro,

---

---

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

0 Answers  

---

What is dynamo function in DG sets and draw block diagram?

0 Answers   KPR Agrochem,

---

why transformer calling in VA rating

6 Answers  

---

what is IDMT relay.

4 Answers   Birla,

---

What are the common sources of energy?

0 Answers  

---

2. The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?

1 Answers  

---

capacitor applied voltage is 1100VDC & capacitance value is 82uF how to calculate current of capacitor.

2 Answers  

---