Answer / tim lafferty

Isolation transformer means that the device has a galvanic
separation between the primary and secondary. Galvanic
isolation means there is “insulation” that does not allow
current flow or no electrons to transfer between two sides
of the circuit. Isolation transformers can be kV or micro
Volt size. They may be 1:1 or 1000:1 or 1:10,000. The
term isolation transformer does not indicate anything about
the transformer except that the secondary is not electrical
connected to the primary. Meaning the primary and
secondary grounds are completely independent of each
other. The connection between the two sides the magnetic
flux not an electrical connection.

Answer / iamdon

As name suggest Isolation transformer does not alter
power,voltage or current level.It only electrically isolate
two parts of circuits.It has turn ratio of 1:1
It is use in amplifier circuit.

We are getting supply at33kvand it stepdown to 11kv.So Our requirement is 11kv voltage.why we draw 33kv from the grid instead of 11kv?

2 Answers   Birla,

---

How i can decide that HVDC line is best for transmission.

0 Answers  

---

please explain power factor in simple words.....

3 Answers  

---

what is the working of ups.

7 Answers  

---

what is dedicated earthing

2 Answers   Apollo Power, Student,

---

what is the speed of the darkness?

3 Answers   Wipro,

---

what is the condition for YnD11

0 Answers   Bhel,

---

1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.

0 Answers  

---

how we can calculate 2 phase welding transformer rating or total power?

0 Answers  

---

In india the power supply is always in multiple of 11, eg.220 V, 440 V... what is the reason?

11 Answers   BSES, Electrical, L&T, PSIT,

---

Why IGBT is very popular nowadays?

3 Answers   TVS,

---

What is the problem, if a circuit breaker is not closing.

4 Answers   KSEB, L&T, Siemens,

---