If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

0 Answers  

---

What is IDMT? What is the principle

3 Answers  

---

I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com

0 Answers  

---

what is the meaning of osr in transformer.

0 Answers  

---

What is the use of doing meggering for a cable

2 Answers  

---

Whether the over frequency protection is turbine or alternator and why?

1 Answers   Marg,

---

why we usually call 415 volts instead of 440 volts

3 Answers   S Tech,

---

Isolation transformer primary to sec turns ratio?

2 Answers  

---

why zero sequence impedance measurement is not applicable for single phase GT

0 Answers  

---

why is that a 4*4mm cable,is always powdered internally

3 Answers   Construction, L&T,

---

A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

---

hi this toufik here. i am doing my b.e.degree.now i am in final year and supposed to do a project in this year so i thinking to control the buchholz relay using software base means checking the status of transformer oil using microcontroler, plc or scada. so can i do so...??? alz suggest me...

2 Answers  

---