Answer / kc ng

Normally for transformer oil temperature >80deg = alarm.
if oil temperature >90deg = tripping of VCB.

why the electrical plug point pin(earth) size in max

1 Answers   Autoneum Nittoku, Bajaj,

---

how to improve IR value in HT motors?

3 Answers   ABB, AMW, Macleods,

---

Capacitor panel CT is normally fixed on Y phase of the main panel.why???

3 Answers  

---

what is the differences between single phase ind. motor and three phase ind.motor?

3 Answers  

---

If we have two nodes A and B and Vab is the potential difference between these nodes then which node is called reference node a.node A b.node B c. Ground node

1 Answers  

---

what do you mean by PF correction. A motor is rated at 15 kw,415 volts, 0.7 pf and eff of 0.92. The powerfactor is improved to 0.98 by adding capacitors at the bus. calculate the current drawn by motor under full load condition before and after pf correction

5 Answers  

---

can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

0 Answers  

---

What is the standard height of installation of Socket & switch from Finish Floor Level as per the IEC/IS Rules?

1 Answers  

---

electrical

0 Answers   BSES, Minda,

---

If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

0 Answers   Posco,

---

how capacitance is neglected in short transmission lines ?

1 Answers   BMC, Qucab,

---

what is servo motor and how it works?

0 Answers   Godrej,

---