Answer / kannu

current and voltage transformers both are based principle
of as transformers.it used for step down the voltage and
current to measure the electrical energy .
There is a ratio to identity the CT and PT.

pt ratio :100/1 etc.....
ct ratio :100/5 etc....

A single line diagram(SLD) and a purchase order of a 11/66kV switchyard of a power plant was given. In the SLD, only one lightning arrestor(LA) was shown, but the purchase order had need of 3 LAs. Is this correct, if yes, why?

2 Answers  

---

what's the exact magnitude of current, flows through Neutral?

0 Answers  

---

i have one source transformer with the capacity of 50KVA, connected with two loads 10kw and second one is 15kw.. how can i calculate first load in KVA and second one in KVA .. because Kva rating, power factor rating of of transformer is different from the load… there must be some way to calculate load KVA rating and power factor….

1 Answers  

---

what do you mean by star point.its importance in ct & pt

2 Answers  

---

What is industrial automation ??????

5 Answers  

---

what is the use of starter in tube light?and what it contains

12 Answers   L&T, RRB,

---

What is the fullform of NS fuse

2 Answers   Google, JAL International,

---

what is deffrent alternatid and gernater

2 Answers  

---

why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

0 Answers   HCL,

---

why in a swquence network representation, the negetive sequence generated voltage is taken as zero?

0 Answers  

---

what is the function of 1 phase preventer?

3 Answers   ABB, Electrical,

---

for compensate 315mh inductance ,how many capaciance required?

0 Answers   Mitsubishi,

---