Showing posts with label All. Show all posts
Showing posts with label All. Show all posts

Sunday, March 15, 2020

Why Transformer Rating in KVA.

Transformer Rating in KVA.

1-KVA is Rated Output is Limited by Heating hence Losses in the Transformer.
2- Mainly Two Type Losses in Transformer.
    1-  Core Losses .
     2- Ohmic Losses.
1- Core Losses Depends on Voltage.
:Core Losses Find out by Transformer Open Circuit Test Perform.
2- Ohmic Losses Depends on Current.
 : Ohmic Losses find out by Transformer Short Circuit Test.

* So Losses Depends on Voltage (V) & Current (A) is almost unaffected by Load power factor.


So Transformer Rating in KVA.

33 KV Line ko kaise pahchane/How to identify 33 KV Line.

 33 KV Line ko pahchane ka tarika
1- V-Cross arm Dekh Kar
2 - Pin Insulator Dekh Kar.
3- Conductor Dekh Kar.
1- V Cross arm ka weight jayada hoga 11 KV Line ke V- Cross arm se & V-Cross arm ke beech Space 1525 mm hoga.
2- Pin insulator 10 KN ka hoga. 
3- Conductor ka area Nominal 100 Sqmm ka hoga. Aur Sectional area jayada hoga jis se Conductor ki current carrying capacity 257-291 A (Dog Conductor) hogi.

Yis tarh se 33 KV Line ko pahchane sakte hai.




https://youtu.be/Y7yTGbmeA0I

What is Transformer

Transformer is a Static Device That Transformer Electrical Energy from one Circuit to another Circuit through the medium of Magnetic field.
Transformer is  Electrically Separate but Magnetically Coupled. Coupling magnetic field allow Energy transfer from one Circuit to another Circuit.

Transformer Principal- Transformer work on Mutual induction.
Transformer Rating uses in Distribution Network- 16 KVA, 25 KVA,63 KVA, 100 KVA,200 KVA. 

How many motors of 5 hp can be driven by a 25 KVA transformer?

How many motors of 5 hp can be driven by a 25 KVA transformer YouTube video link given below-  YouTube video Link