Answer / karan kumar goyal

Transformers: It is an electrical equipment used for
stepping up/down the voltage level for transmission as well
as distribution.

Power Factor: The cosine of angle between voltage and
current is known as power factor. If the current lags
behind the voltage then it is called lagging P.F. If the
current leads the voltage then it is called leading P.F.

Machines: Equipments used for electromechinal conversion
are known as machines.

Answer / geetha

Transformer: is a static device it changes voltage (step
down/step up) with out changing any frequency ....

Answer / siva

three phase and single phase .

In a 3 phase 4-wire system. For a 3.5 core cable if all loads are single phase and balanced, what will be neutral current? will it be sum of all phase currents? Or it will be zero? And if loads are unbalanced what will be neutral current?

0 Answers  

---

In my 3 phase 4 wire electrical system N to earth voltage is 0.08 is it ok What is standard for it ?

1 Answers   Kay Bee,

---

what a function diesel generetaor turbo charger & turbo charger is more heated explain reason ?

0 Answers  

---

WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

0 Answers   L&T,

---

1.why motor rating in kw instead of KVA? 2.why alternators rating in KVA instead of KW?. 3.why transformer rating in KVA instead of KW?.

6 Answers  

---

what happenes if the core of the transformer saturates?

4 Answers  

---

what will happen at the time of CT saturation?and what will be the Relay's function at the time of CT saturation?

2 Answers  

---

why generaters need four earthings

5 Answers   Sasken,

---

which one is dangerous AC Power r DC Power for Electrical Shock ?

10 Answers  

---

Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode

0 Answers  

---

What happen if ac supply is fed to rotor of the alternator?

1 Answers  

---

what is a difference berween line voltage and phase voltage?

2 Answers  

---