Answer Posted / gunasekaran

first we have calculate the efficiency.
then we calculate the core loss.
loss is Isqr*R
we know load current and loss then we can calculate the wdg
resistance of the motor this is app.method not correct.
for transformer also same like that.
we can get the loss and efficiency of the motor from
manufacturer.

one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..

2132

---

Do closed loops systems require manual input?

1204

---

how does commutator convert a.c to d.c?

2199

---

Can i replace Earth leakage relay to the faulty Earth Faulty Relay

1515

---

in a silicon diode we can measure .7v in a voltmeter.but why we can't use this voltage for using?

1913

---

WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

2120

---

why is using sensor?what is differece between photoelectric and proxmitty?

2001

---

in power generator normaly voltagr betwween esth to neutral is 0 but my work place generator show the volatge is 60v any body know why? thanks

1897

---

define as synchronous generator

2142

---

State and define norton’s theorem?

1245

---

What is load boxes ?

2153

---

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1864

---

What are the different power system losses and how can it be eliminated?

2051

---

. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2151

---

why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

1370

---