Answer / balu

There are two CT output current. 5A or 1A. These are
standard outputs.There many measuring and protective
instruments will be connected to this secondary. So these
instruments designed for the output of this current. Based
on the customer primary current, the multiple factor can be
programmed to measure primary current. So, it reduces
customization .

Answer / ashish gupta

It consider to be standard. But if we see the ratio error and phase angle error formula we observe that turns ratio ns comes out to be in denominator.So higher the turns ratio lower is the error. So higher turns ratio is obtained when secondry current is 1 amp

Answer / mukhesh

bec from t/f see relese the cts primary curent and
transfoemer ratio will give the exact 5a if any fault o
tr line the ratio willt if open will burnt ou be other
than 5 a ansd seec should not open at any time

What is meant by Load Encroachment in OHL Feeder Protection?

0 Answers  

---

Pure inductive ckt takes power from AC when 1. Applied voltage and Current increases 2. applied voltage and current decreses 3. voltage decreases and current decreases please justify

2 Answers  

---

What are the different types of VVVF Drive ?

2 Answers  

---

how to calculate a cable size while load is given in amp or kw and length is also define.?

1 Answers  

---

What happen if two protection core (3p) of VT in LAVT are 11kv/root3, 110v/root3 and one protection core (3p) is 11kv/root3, 110v/3

1 Answers  

---

why the transformer neutral earthing is to be done by copper flat only,if we use GI flat what is the disadvantage.

2 Answers  

---

What is duty cycle for HT motors? How many start permitted if mentioned as 01 for hot and 02 for cold per duty cycle?

1 Answers   GVK,

---

hai friends i have BSNL JTO exam on next month so if any body have model question paper or give preparation tips to my mail id kumar4486@yahoo.co.in this will helpfull for my future .plz & thank u by kumar

0 Answers  

---

What type of wiring series or parallel is used for conventional and addressable type FAS & why?

0 Answers  

---

defination of generator

7 Answers  

---

what is the differance of acb and mcb and mccb

12 Answers   MacAir, MDS,

---

1.what is the basic difference between surge arrestor and lightning arrestor and where we use it. 1.what is the difference between metal oxide without gapped lightning arrestor and with gapped lightning arrestor

2 Answers  

---