Why Cables are always circular and not square or rectangular?

3 Answers  

---

my UPS is 600VA with 0.6 p.f and i use it for my computer which has 450W power supply unit, a monitor of 633nW and speakers. Can any one explain this.. because the output of UPS should be 360W (<450W)

2 Answers  

---

What is the difference between security constraint unit commitment and security constraint optimal power flow?

0 Answers   College School Exams Tests,

---

what is the different between bus section and bus coupler

2 Answers  

---

Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?

2 Answers  

---

---

In any plant or substation main incommer voltage RY - 415 V,YB - 400 V, BR - 387 V(in commer feed from transformer 11 Kv /0.415 KV) why found voltage differance in each phase? plant have not self power plant it is depend on outsource grid

2 Answers  

---

why earth hole size is biggest in plug point?

13 Answers   RRB,

---

WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

0 Answers  

---

tan delta test of current transformer.

3 Answers   NTPC,

---

advantages and disadvantages of inverse definite minimum time RELAY

0 Answers  

---

what is AB switch???

6 Answers   NTPC, Simplex,

---

Star Delta Diagram with full description

0 Answers   SKS Microfinance, Syscom,

---