Answer / guest

In order to be able to calculate the cable size of a power
cable one should know
1)how much load it has to carry.
2)how far or the distance
3)what is the voltage
4)what type of conductor to be used.
5)have the cable manufacturers catalogue
deciding on the type of conductor example aluminum or
copper, armoured ,surface mounted or under ground and
knowing the expected load the voltage drop is calculated and
the most suitable cable size is selected which falls within
the local regulations.
Same goes for the other cables also taking into
consideration all other factors.

why C.T protection required for H.T.lines?

4 Answers  

---

why we can not use dc in our country( INDIA)

5 Answers  

---

WHY HVDC?

3 Answers  

---

plz explain TSM and PSM.with example suppose ct ratio is 4000/5 and tsm is .15 and plug is at 3.75 if fault current is 8000A.so how i find relay oprating time.

2 Answers   College School Exams Tests, ME,

---

why measure the gravity in battery?

2 Answers  

---

why voltage drop will occurs in 3 phase line?

12 Answers   ABB, Servo,

---

For two systems transmitting the same amount of real power, the system with the lower power factor will have higher circulating currents due to energy that returns to the source from energy storage in the load.???

0 Answers   Bhel,

---

There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

0 Answers  

---

what is the d/f b/w iverter & converter.

5 Answers   Indeco,

---

Capacitor panel CT is normally fixed on Y phase of the main panel.why???

3 Answers  

---

how is working d.c amps meter?how to connect the dc ammeter inthe circuite?

2 Answers  

---

what is the differnce between ac and dc?

5 Answers  

---