Answer / thampuran

Actually RPM = 120f/p

Answer / niraj shukla

power is directly prposnel to current and current depends
on frequency

what is percentage impedance of transformer? explain its significance

2 Answers   ABC, Bosch,

---

what are the applications of transistors with low dc gain, high dc gain and medium dc gain( beta)?

0 Answers  

---

What is “pu” in ee?

0 Answers  

---

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases voltage A does not alter B decreases C increases D none of above

1 Answers  

---

what is reactive power is it good or bad for a system

5 Answers  

---

what is two wattmeter test

2 Answers   Jindal,

---

As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

---

What is the real use of reactive power in a electrical system other than loss (inductive &capacitive).I want to know its real physical significance.

0 Answers  

---

what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

0 Answers  

---

why there is a temperature rise at different metal to metal contact at cable lug??suppose cable is aluminium and the lug is copper,than why the temperature rise takes place??

2 Answers   JK Cement,

---

hello everybody. what does an abnormal stator winding impedance or dc resistance show? thanx

0 Answers   Ansaldo,

---

what is the CT of protection and CT of metering ? what is class 5P10 & 5P20 and class PS ?

16 Answers   JEE Main, ONGC, VRA,

---