Answer / amit sharma

distance relay operates on the zone impedance. If impedance
seen by the relay in the zone is less than the rated imp.
then relay trips and the zone is isolated.

Answer / d ramesh

Distances relay senses the faulty zone if impedance seen by
the relay is below the set value then it operates and
isolates the faulty zone.

z=v/i below the set, then operates
zone1= 80% of protected line
Zon2=100%protected line + 50%shortest line
Zon3= 100%protected line + 100% longest line.

Answer / sukhvinder

relay works is ratio of voltage over current.line is
divided into zones zone 1,2,3. zone1 is 80 per of line and
set for immediately trip for line

Answer / limbian

Distance Protection Relay senses the faulty Zone by
recieving signal from Voltage Transformer

Answer / j.kesavan

it is sense sending end receving end voltage relay trip
depending upon voltage.

What do you mean by distribution transformers?

0 Answers  

---

suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?

2 Answers   ABB,

---

what is meant by AYFY Cable?

9 Answers   XLPE,

---

In a 11000/440 V transformer, when any one phase of 11 KV supply fails (ie., single phasing), what happens to the secondary voltage and why?

3 Answers   Secure Meters, TCS, Torrent Power,

---

BSNL TTA EXAM QUESTION

0 Answers   BSNL,

---

---

What it is the diff btw Package & PEC AC's????

2 Answers   Emerson,

---

why we create vaccume in transformer tank before oil filteration?

3 Answers   CG CoreEL,

---

What will happen if 33 kv is given to a 11/0.415 kv Distribution transformer?

2 Answers   SECL,

---

What meant by lagging and leading? When if they are occurred what preventive methods should be taken?

14 Answers   ABB, L&T,

---

how can we connect the capacitor bank to improve the power factor?

5 Answers  

---

what is doid

0 Answers  

---

what is the chemical reaction of solt and charcoal in earthing?

1 Answers   Shyam Group,

---