On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

3 Answers   Ambe Consultancy, Siemens,

---

HOW isolation transformer works.

2 Answers  

---

Why r used of cable 50sq.mm and above size cable in 3.5 core. And below size in 4 core ? any technical reason please explain it

2 Answers  

---

what is the difference between ELCB and RCCB

5 Answers   Concorde, Hyundai,

---

What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?

2 Answers  

---

---

How to decide and select the different earthing wire size for the different types of earthing

0 Answers   Suzlon,

---

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 Answers  

---

what is the reactive power what is the use of it in system

0 Answers   L&T,

---

why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

0 Answers   Siemens,

---

Why not connect relay Y phase for over current and earth fault

1 Answers   HB,

---

While DG is on Load? we can start the capacitor bank?

3 Answers   Inorbit,

---

why all selected supply voltages are multiple of 11.i.e440,11 kv,33 kv,66 kv,110 kv etc

6 Answers   Suzlon, TCS,

---