Answer / k.prakashchandra

Whenever there is a fault in the system there will be a
momentary dip in voltage as breaker takes some time to clear
the fault.The momentary rise is due to sudden reduction of
load or lightning stroke

Answer / n k singh

It is due to variation in loads. It also occurs due to fault in the network.

Answer / jamsheer

Actually voltage dip is the sudden decrease of rms voltage of transmission line.And voltage swell is the temporary increase in RMS value of AC voltage with the magnitude of the retained voltage between 110% and 180% of the rated voltage.These are mainly due to the fault occurring on any of the power system components.

what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

0 Answers  

---

in alternator permanent magnet generator is also connected on the alternator shaft,then y that PMG voltage is very low as compared to alternator?

1 Answers  

---

HOW many type of Circut Breaker in the world used in 400 kv substation?

14 Answers   Power Grid,

---

Why the outpet og DG is 415V not 440V?

1 Answers  

---

Why transformer rating is represent in KVA?

7 Answers   Bhel, Sonalika, Usha Martin, Wipro,

---

how to match 0 -10V with 4 - 20mA

3 Answers  

---

how to make a solar panel? why solar panel cell connected to serious?

1 Answers  

---

what are the different types of transformers in present? which transformer is efficient?

1 Answers   TATA,

---

why we use lamination or layer by layer cor used?

4 Answers  

---

1.Difference between vcb and Acb and partes. 2.Difference between STS and ATS.

2 Answers  

---

ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH

0 Answers  

---

what is the purpose of supervision relay coil

1 Answers  

---