Answer / k.prakashchandra

It is used to block unwanted DC supply.In case of Dg set
used for charging batteries, it blocks the reverse supply
to DC gen if the set fails.It protects dc appliances from
connecting wrong polarities to the supply.In battery
chargers it enables measurement of charging voltage and
battery voltage seperately.etc

A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

0 Answers   Caterpillar,

---

What is critical disruptive voltage?

0 Answers  

---

what is voltage gradient?

8 Answers   Bhel,

---

how can we find a burden of potential transformer? what does it effects? how can we calculate rated load of it?

4 Answers   Areva, KPTCL,

---

How to calculate fault level of 11 KV system

0 Answers  

---

purpose of flux relay for turbo generator in power plant

1 Answers  

---

armature winding of dc machine produce alternating emf then it convert in to dc by using commutator.But only we consider armature resistance why don't we consider inductive reactane effect?

0 Answers   APTransco,

---

what is the formula for converting KW into KWH ?

3 Answers   Blue Star, Essar,

---

why root three is used and how its comes in three phase power system?

1 Answers   IEEE,

---

Pl.brief me any electrical major fault you have rectified.

0 Answers  

---

What is the basic difference between 90% stator earth fault and 100% stator earth fault, and its phenmenona?

4 Answers   Reliance,

---

Why transformer is not rotating?

20 Answers   BARC, Nerolac,

---