what is the main difference between power devices and signal devices

0 Answers   Wipro,

---

i want the formula of total eletical knowledgement

1 Answers  

---

we have 15 ampere variyac but we want 30 ampere variyac what we do

0 Answers   Delta Roto Tech,

---

when voltage increases then current also increases then what is the need of over voltage relay and over current relay? can we measure over voltage and over current by measuring current only?

1 Answers  

---

A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

0 Answers  

---

---

What is the difference between 2 wires RTD's and 3 wires RTD's.Kindly explain the wiring diagram.

1 Answers   QAFCO,

---

what is the difference between indoor & Out door substations

5 Answers   HSBC,

---

What will happen if we give AC supply to DC motor?

4 Answers  

---

What is power transformer?

3 Answers   Welspun,

---

what is ht breaker

8 Answers  

---

what is an alternator & generator

5 Answers  

---

why current increases when voltage decreases in ac system

10 Answers  

---