Answer / kingshuk dey

Digital signals: They are wither ON or OFF state. That is 0 or 1. Like if a lamp is glowing or not.

Analog signal is a range of values that lie between ON and OFF. Like the position of gate between the "OPEN" and "CLOSE" position. Like, 45 degrees open. So the signal is between 4 to 20 mili-amps normally (4 amps is FULLY OPEN and 20 amps is FULLY CLOSED). 4 amps corresponding to 0% and 20 amps for 100%.

what is the apt definition for kirchoff's current and voltage laws?

3 Answers  

---

How does a system control centre in a utility plant gets the grid frequency of the electrical network (50 Hz or 60 Hz)by the SCADA system?

1 Answers  

---

What is the height of DA, DAL, DB, DC & DDE tower?

0 Answers  

---

please explian how may types of maintenance works.

4 Answers   HP,

---

Why infinite busbar has zero resistance and high mechanical inertia?

1 Answers  

---

What is limitedly stable system?

0 Answers  

---

STATE WORKING OF SF6 C.B.?

1 Answers  

---

If one lamp connects between two phases it will glow or not?

0 Answers  

---

what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.

0 Answers  

---

What is the causes Power Factor become leading and what is the effect of Electrical system ?

2 Answers  

---

I have 90KW Motor 60 Hz,380V Pf 0,88. after testing the Motor without Load is the no load Current 36 A,but wenn i put load after 2 hours the current increase more than 156 A. Can anybode tell me waht is the Problem?

4 Answers   ABB,

---

what is the diff. between power transformer & distribution transformer.....

5 Answers  

---