why we r using 4-20ma instead of 0-20ma in instrumentation

2 Answers   EID Parry,

---

What is the difference between body earthing and neutral earthing?

2 Answers  

---

how to know the diffrential relay setting of 06mva step- down (delta-star)transformer?

0 Answers   IPCL,

---

Why the capcitor to be discharged after put in to operation & why not inductor though the both elements stores energy?

3 Answers  

---

difference b/w current and voltage relay?

1 Answers  

---

---

What are the procedures followed for underground cable laying.....???

2 Answers   KSEB,

---

WHAT IS THE DIFFERENCE B/W THREE POINT STARTER AND FOUR POINT STARTER

1 Answers  

---

how can i find cable size from current rating?

0 Answers   Sintex,

---

DIFFERENCE B/W NEUTRAL AND EARTH?

2 Answers   Genesis, IBC,

---

what is the eight bit unit?

0 Answers  

---

Block diagram of Power line communication?

0 Answers   CIL, VIP,

---

how to stop oil leakage in power transformer.

1 Answers   APGenco,

---