Answer / pnverma19

diffrential protection use for protecting of transformer
internal fault

Answer / thaker harit

transformer differential protection is that when the earth fault current is higher so that h.v side and l.v side transformation ratio must be maintain but that time the ratio could not be maintain that time transformer will be tripped in differential.

Answer / m.w.

Differential protection compares de primary currents with secondary currents (which must keep the same ratio) in order to detect a "differential" current between them caused for an inner fault.

What is stepper motor. What is its uses?

0 Answers  

---

State the formula for overall efficiency of thermal power station

0 Answers  

---

IT IS SAID THAT THE OLTC OPERATION SHOULD NOT BE PERFORMED WHEN THE TRANSFORMER IS GENERATION TRANSFOREMR/STEP UP MODE. WHY IS IT SO?

1 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

---

differtiate between energy consevation and energy efficiency..

1 Answers   L&T,

---

Hot Water System (HWS). Will a 30ma elcb have more nuisance tripping than 100ma elcb

1 Answers   CIMC,

---

Which factor decide the colour of the light emitted from a Led?

3 Answers  

---

Why we are putting off the APFC(automatic power factor control) panel while the generator is running?

4 Answers   National Steel,

---

speed of an electric wave

3 Answers  

---

what is recommended breakdown voltage of transformer oil?

5 Answers  

---

generally the electrical equipments not to be operated at leading power factor, why?

2 Answers  

---

Is earthing done for AC or DC or both?

6 Answers  

---

What is referred to the electron in the outer orbit?

0 Answers  

---