Answer / vels

for calculating the active power ,reactive power ,current etc in Energy meter. since the energy meter is having separate CT and PT ratio and field is having different CT and PT ratio
hence MF is required
formula
actual CT*PT ratio/meter CT*PT ratio

Answer / shakirullah khan

The multiplying factor = 0.13 (from the capacitor estimation table above) .... where the low voltage load is supplied from several distribution substations,.

what will happen if i will done heart shape hole in transformer core?

1 Answers   Bhel, ONGC,

---

starting torque is increased and current is decreased by using external resistance in a slip ring induction motor. How??

3 Answers  

---

what are the protection for DG set and why?

2 Answers  

---

what happen if we supply ac to the field of a alternator?

5 Answers  

---

if we convert ampers into kwh or mwh ,which one formula use by us,pls tell me?

3 Answers  

---

1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

---

Why we use a H.T. Fuse from a thick wire, on other side we use high rating of cables? & Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?

1 Answers  

---

Dear all, I'm manikandan I have done by DIPLOMA EEE from 2011 , I have 5 years of experience from Power plant instrumentation field , which one field is give long life & which one field is best ,I confused a lot and also I'm studying AMIE, can I choose which department from Section B examination? pls tell me

0 Answers  

---

what is earthing transformer? draw the winding dia.of earthing transformer.

0 Answers  

---

How can I model an open-delta ground transformer for a network supplied by 4 unit GTG and power transformer in ETAP?

0 Answers  

---

what is working parincipal of a ht transformer

0 Answers   Pidilite,

---

15hp,380v,31amp,3-ph submersible motor run at 250v what is The temperature rise of submersible motor

1 Answers  

---