Answer Posted / deepak24

Iron Loss:- proportional to Frequency
Copper Loss:- Proportional to square of the frequency

If a transformer of rating 50 Hz connected to 500 HZ frequency then Iron Losses and Copper losses in the transformer increased and efficiency decrease. it is to be noted that losses are dissipated as heat so transformer may get effected.

can i able to get bhel previous exam question paper?

2140

---

How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.

1994

---

Hi,I am working in abroad for more than 3 years in a company operating with 11kv and 6.4 MW power. I need c licence in India,can I? some other says only i can get if i work for 2 years in india only! anybody kindly clarify by doubt.Thanks

1901

---

how much winding resistance of 0.75kw to 12.5kw 3ph sqwiralcage induction motor?

3074

---

why we change the direction of winding in rotor ?how we make the north and south pole?

2092

---

why cable i burning without tripping. how can protect led street lights

1661

---

What is the minimum underground tank size capacity considered for firefighting purpose?

2005

---

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

2319

---

What current position are you holding in your current company?

2130

---

harmonics filter

2002

---

Load transfer in 11kv double busbar switchgear - operation.

2010

---

what does mean of RCT and STR in diffrential CT?

4287

---

what is value of Jin transformer

2142

---

hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible

1886

---

What is stepper motor?

1355

---