Answer / mahesh-lanco

The Main Functuion of the Insturments Transformers(Current
Transformer &VOLtage Transformers) is to Standartise the
secondary to less value. As the Relays and Circuit breakers
are designed at Very Low Values(DC).If the fault curent or
voltage is very high there is no meters manufactured for
the measurment of such high volatgaes/currents the
Secondaries of CT &PT are standartized to 5Amp and 100V
respectively

Answer / abhik raj

it is standard that CT sec should be 1 or 5 amp based on
partys demand.becz relay/meter are designed for the
same.otherwise it is difficult for both manufacturer/user.

What is the function of the circuit breaker failure relay?

0 Answers  

---

WHAT IS THE DIFFERENCE BETWEEN SHOP DRAWINGS/ DESIGN DRAWINGS AND AS BUILT DRAWINGS??

2 Answers   ACC, Al-Jaber, Dubai Group, ECEC,

---

as ac supply is given 2 the transformer why it doesnot depends upon powerfactor????

2 Answers  

---

What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?

0 Answers  

---

What is 2P*0.5 sqmm screened copper cable and what is the use of it..?

1 Answers  

---

what is meant by poly phase induction motor ? how its operating by single phase or three phase?

0 Answers  

---

What is an automatic controller?

0 Answers  

---

NOW A DAYS THE POWER SUPPLY IS VERY LOW.SO THE FLURESCENT TUBE LIGHTS ARE VERY DIM.IS THERE IS ANY WAY TO INCREASE ITS BRIGHTNESS?FOR EXAMPLE ANY CONVERTER,CONDENSER?

1 Answers   Bhel,

---

What is the meaning of HT Trivector Meter ?

0 Answers   NIIT, Sodexo,

---

whatis knee point ?

5 Answers   L&T, Siemens,

---

what happens if sf6ckt breaker gas pressure is high or low about the actual rating of gas pressure(5kg/cm2)

2 Answers  

---

Why nutral wir used thinner than phase wire

3 Answers  

---