Answer / tendulkar

adding information to this question....
transformer is used for three purposes
1.to step and atep down the volatge.
2.for impedance matching
3.for isolation.
transformer used for isolating purpose is called isolation
transformer,it is used when there is a requirement to break
a continues big circuit,it should be noted that the voltage
at primary and secondary ends of this transformer is same

Answer / bhadrappa

for impedance matching and isolation.

it is used when there is a requirement to isolate the power ckt with control circuit and to transfer the pulse.
example: thyristor working in 415 volts firing circuit under 5volts.

Answer / nagesh.patwari

Isolation transformers block transmission of the DC component in signals from one circuit to the other, but allow AC components in signals to pass. Transformers that have a ratio of 1 to 1 between the primary and secondary windings are often used to protect secondary circuits and individuals from electrical shocks between energized conductors and earth ground. Suitably designed isolation transformers block interference caused by ground loops.

What type of input will the OLTC indicator will accept or what type of output the OLTC will produce to monitor it's position at remote location.

1 Answers   amps,

---

difference between buscoupler & bussection?

1 Answers  

---

Which do you think is the most significant cause of energy loss in a factory?

0 Answers  

---

1 HP = how many kw

9 Answers  

---

what is the function of anti-pumping in circuit breaker?

20 Answers   Aditya Birla, INEL, NCC,

---

why we used ZNO in Lightning arrester.

0 Answers  

---

when motor taking high amp what happen.

4 Answers  

---

how to get electrical supervisour certificate in gujarat

0 Answers  

---

why we do not switched on capicitor panel with DG Supply

3 Answers   DLF,

---

I am final year b.tech student..i applied for gate but i am not interested any of my engineering subjects. i am interested in management wise.. is my option correct after b.tech..

1 Answers  

---

which motor is suitable for traction? why?

15 Answers   BCH, KPCL,

---

which type your UPS on line,off line give the reason?

2 Answers   Roto Power,

---