what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so

3 Answers  

---

whenever any squirrel or a crow falls on the transformer input line then there is a big explosion and 440 volts of power is being discharged through the neutral line due to which appliances in off mode are also burned.we have earthing for the transformer as well as the bus bar chamber.why is it happening?

1 Answers  

---

What are the applications of autotransformers?

0 Answers  

---

What is the diffrence in between Class PS & Class 5P10 for CTs

7 Answers  

---

How do you change an AC motor to DC? why there is only 50 Hz frequency in india & not other?

4 Answers   BSF, TATA,

---

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

0 Answers   Reliance, Southco Utility,

---

what is humming noise and wha is the reason to develop humming noise in a mv pannel ?

2 Answers   HPL,

---

How to calculate total harmonic distortion level(THD) in VFD? and how can we reduce harmonics?

0 Answers   Apollo,

---

what is meant by neutral compensation factor and where it is used

0 Answers  

---

I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

0 Answers  

---

Approach of a cooling tower is the difference between temperatures of what factors?

0 Answers   Blue Star,

---

how to calculate kvar in Akiva

0 Answers  

---