Answer Posted / karanth.sp

The PF of the connected load to a particular transformer is
to be asssuemed or known exactly.If the transformer is
already loaded you can kow the running PF by PF meter
connected.IF the PF is say 0.7 & you want to improve to
unity.You must add a capacitor of Total load in KW multiply
by a factor of 1.02.That is the value of Capacitor in KVAR.
Formula is PF (cos0)=0.7 Tan01=0.963
improve PF(Cos0)=1 Tan02=0
KVAR Required= P(Tan01-Tan02)=P(0.963).
This shall be devided in to number of stages as required.

what is servo motor and how to work it.

1898

---

Define the three phase formula fuse.

1843

---

state basic meaning of 'INDUSTIAL AUTOMATION'?

1914

---

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

2405

---

please send me the L&T Emb. sys. placement papers and entire details of pattren

2314

---

explain the function of brush less dc motor?

2066

---

Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?

2239

---

if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

1982

---

Define unilateral circuit?

1222

---

what is the difference between earth leakage and earth fault?

2304

---

What is resonant frequency?

1256

---

what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering

2050

---

i want to apper for apgenco or aptransco or related can any one sugest me where can i get previous papers of thouse exams

3285

---

What is EHT tariff or Power factor Tariff ????

2327

---

What is Phase margin?

1090

---