Answer / swati ahuja

Iron losses are the fixed losses in an electric motor.These
are also known as "fixed losses".These are:
1> Eddy current losses
2> Hysteresis loss

To overcome eddy current loss the core is built is in
laminations while to overcome hysteresis loss, the core is
made of stainless steel laminations,i.e.,hysteresis loss is
a property of the material of the core.

Copper losses are the variable losses equal to sq. of
current X R.

Answer / abhishek

iron losses are mainley du to voltage and copper losses is
du to current.

Answer / rajneesh upadhyay

in transformer there is no moving part so there is only
iron loss
copper loss
stray loss
iron loss :can be categorise in two part
hysteresis loss & eddy current loss
hys lossis due magnetizing and demagnetizing effect of core
due to ac current . because core is not completely
demagnetize in one half cycle of current some current is
used for demagnetize is this loss ocurr
eddy current loss is due to loop of magnetic line in iron
portion of transformer which should not in core this can
minimzed using thin lamination of core and si content of
core
cu loss is due to resistance of cu portion in windind
IF DONT AGREE PLZ SUGGEST RAJNEESH.GCA.MMMEC@GMAIL.COM

Answer / bala.a

No load losses and load losses

how can maintaince the acb contactor moveing and fixing kit

0 Answers   Gulf Cement,

---

what is the problem occer in motor

5 Answers   IOCL,

---

What was your role in the silicon evaluation/product ramp? What tools did you use?

0 Answers   Intel,

---

what is the difference between ac motor and dc generator

0 Answers   ETA,

---

how many typetesting of transformers?

8 Answers   ONGC,

---

(1) From the following option, which option is correct for largest size transformer.? a)1KVA,25Hz , b)1KVA,50HZ , c)1KVA,60Hz , d)1KVA,100Hz

5 Answers   Torrent Power,

---

sir, iam ramya.... from the discipline of E.E.E appearing for jindal exam .sir, could you please send me the modal papers of recent jindal steel exam.

1 Answers  

---

what are the sections in a high voltage system(eg:incomer,buscoupler,isolator

1 Answers   IGL, L&T,

---

Up to how much limit of HP of electric motor the Star- Delta Starter can be used ?

1 Answers  

---

is power factor correction related with vector group of transformer i.e:Dyn11?

1 Answers  

---

i karmveer bharti persuing b.tech . plz send me syllabus and name of reference books. for preparation of section eng.

0 Answers  

---

Draw a SLD of DG distribution up to main LT panel?

0 Answers   HSL, TATA,

---