Answer / renjith nk

for elcb the margine value is 2% of system voltage.
for rccb the margine value of current is 10mA.

Answer / george

depending up on load current

What is power factor?How to improve power factor

2 Answers   Tech Mahindra,

---

I need to compare the energy consumption of an industrial machine before and after improving. Shall I compare the apparent power or the active power? I know usually factories use compensated capacitors (or other similar components) to compensate the reactive power, so if I use the apparent power, it's not the real power consumed.

2 Answers  

---

If we increase frequency in transmission line in lieu of voltage what will happen?

1 Answers  

---

What are n circles?

0 Answers  

---

Why the suply frequency in INDIA is 50HZ

2 Answers   HCL,

---

What is the resistance to be connected for supplying the load of 20mV,1kohm from 20mV supply using rectifier.

1 Answers   Anna University,

---

show the single line diagram of star delta starter with single phase preventer

0 Answers  

---

What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.

0 Answers  

---

what is the preventive maintence for ht panels and busbars and vcb abd acb's.

0 Answers   Future Group,

---

What is the difference between a Distribution Transformer and a Power Transformer.

4 Answers  

---

what is earthing transformer? draw the winding dia.of earthing transformer.

0 Answers  

---

difference between local breaker backup relay or backup protection relay ?

1 Answers  

---