Answer / k.prakashchandra

No effect on ammeter.In EM type Watt meter and energy meter
the readings reversed.In ETVM import and export interchange.

Answer / vels

one phase is reversed then the Energy meter will not give correct reading
but 3 phases are reversed then the current direction shown are wrong and the reading of MW ,MVAR are showing import instead of export

Answer / sureshkumar

incase protcetion CT not protective the equipment, so direction is must.

Answer / kj

It only has an effect where the direction of current flow
is important. For example monitoring import and export of
power.

which motor gives constant speed?

7 Answers  

---

A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

0 Answers  

---

Can Dy11 and Dy1 vector group transformers be paralleled?

1 Answers  

---

How earthing/grounding done in aeroplanes and ships.

0 Answers  

---

How we can make sure cable size of LT cable without any parameter.

2 Answers   Paradip Port, Siemens,

---

Mention the difference between Analogue and Digital circuit?

0 Answers  

---

which fault current is maximum: 3 phase short circuit, LG, LL or LLG?? why?? in one of the problems that i have solved, 3 phase short circuit current on an unloaded generator came out to be less than the LG fault current. can anybody please explain why.

2 Answers   Bhel,

---

why ten delta testing is carried out on power transformer

0 Answers  

---

what is the significance of tan&delta and how it performed in power transformer

0 Answers  

---

How much load can take a 16 mm aluminum cable 3 phase

0 Answers   L&T, Sanga Energy,

---

What do you mean by power transformer?

0 Answers  

---

what is thermal setting and magnetical setting?

1 Answers  

---