can the measured percentage error during calibration of single phase energy meter be negative?

0 Answers  

---

What is the effect of atmospheric pressure & Temp; on efficiency of motor? Why NGR(Neutral Grounding Resistor) is used in 132/11 KV Transformer & how? What is the use of Auto T/F in Grid Station?

0 Answers   K-Electric Limited,

---

In case of generator when we consume more power produces by it why load on generator increase and starts sound more. and how it is adjusted..

0 Answers  

---

advantages and disadvantages of inverse definite minimum time RELAY

0 Answers  

---

Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

0 Answers   Kazi Farms, SKI Carbon Black,

---

Write the programming software name for LG, SIEMENS,Messung,AB

0 Answers  

---

current transformer cannot measure voltage or not ? then y we use P.T ?

1 Answers   Bhel,

---

for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

0 Answers  

---

what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.

0 Answers   Mepax, NEPCO,

---

How we can convert H.P into KW or Vice versa

11 Answers   Suzlon,

---

what is the operating principle of contactor(power).along with disection?

3 Answers   NASA, Tech Mahindra,

---

What is the physical significant of power factor?

0 Answers   Cooper,

---