Answer / devendra chaturvedi

if we gave transformer 5 hz instead of 50/60 hz at constant i/p voltage than B(max.flux density) increases t a very high value which saturates the core,increases the core losses to a very high value which may damage the core and transformer

Answer / 7anoter4

Since V=K*B*frq [V= primary supply voltage -approx.
equal to E-emf]; B=magnetic flux density ; frq=frequency]
then if frq=5 Hz and V=constant B[5Hz]=10*B[50 Hz].The no-
load[excitation] current will be more than 300% rated
current.

You have to reduce the voltage to 10% from rated at 50 Hz
in order to get the same B.

in cable joints procedure what electrical problems have been solved out ?

1 Answers  

---

How much load can give on 1600 kva transformer 11kv/440

5 Answers  

---

Dear sir please mera ye sawaal hai ki rccb ka kya kaam hota hai please answer hindi me dizyega dhanyya waad

1 Answers  

---

what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

0 Answers  

---

like the transformer another electrical static device which operate on same priencipal?

13 Answers   Power Grid, Vishal Transformers,

---

What is the difference between Ceiling Fan armature and Tablefan Armature or winding.

5 Answers   Pricol,

---

why the carbon brushes are used heat created rotating parts in eiectricity

1 Answers  

---

Transmission through a short line depends on

0 Answers  

---

WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

1 Answers   BRG, Voltech,

---

What is Auto Mains Failure Panel & Auto Synchronizing Panel

0 Answers  

---

why in some cases the receiving end voltage is higher than the sending end voltage in transmission line (called 'Ferranti effect') ????? whts the reason behind tht???

3 Answers  

---

What will happen if 40W and 60W Bulb is Connected in Series.

2 Answers  

---