Answer / hcnaidu

Output Power/Input Power*100

Answer / bhavana

%eff=(output power)/(input power)
=(output power)/(output power + total losses)
=(output power)/(output power + iron loss + cu loss)

Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers   IAG Automation, REL,

---

WHY THE TRANSFORMER VALUE MEASURES IN KVA INSTEAD OF KW.

4 Answers  

---

any one can explain the stages of a knee point which is taken during ct magnetising curve.

0 Answers   Tata Steel Limited,

---

what is the current limit of lighting arrester ?

1 Answers   ABB,

---

who is make controlling in the reactive power that genarted in AS genrator(the exitaion currnt or exitation voltge)

2 Answers  

---

---

if our load is 65000 watts howcan we find out all char like cable size. mcccb etc

3 Answers  

---

What should be the dielectric strenght value of transformer oil of 11/0.433KV distribution transformer and 33/11KV tranmission transformer ?

2 Answers  

---

why we are using DC violtage for testing of cables....which is used in HV AC applicatons...

1 Answers  

---

what are the advantages of having high voltage in transmission lines?

5 Answers  

---

What is SFU why it is used

1 Answers  

---

ABOUT AC GENARETORS AND MAINTANANCE AND TYPES OF GENARETORS

1 Answers  

---

is the secondary voltage of current transformer greater than primary voltage,,,,,,,,] give the example with ct burden,current ratio,and primary and secondary side voltage?

2 Answers  

---