Electrical Engineering Urdu me seekhein.

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Monday, 16 January 2017

EARTHING AUR NEUTRAL MEIN KIYA FARQ HOTA HAY

Earthing aur Neutral mein farq kiya hota hay. Ye sawal aksar interviews wagera mein pocha jata hay aur aksar loogo ko nahi pta hota in mein kiya farq hota hay.
Earthing aur Neutral mein farq.
Neutral ko ham circuit complete karnay kay liye istimal kartay hein jis se phase return jata hay jab kay earthing ham protection kay liye istimal kartey hein. System ko protect karnay kay liye.

earthing aur neutral mein farq.

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TWO PHASE SYSTEM KIYA HOTA HAY?

Two phase system jisay aksar two phase motor system bhi kaha jata hay. Ye aksar electrical motor mein istimal hota hay, Jesay kay two phase servo motor. Servo motor mein do windings hotein hein starting winding aur running winding. In dono Winding ko alag alag phase chahiye hota hay aur 90 degree ka difference bhi hota hay.


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Sunday, 15 January 2017

ELECTRICAL SWITCHBOARD, ELECTRICAL GEAR AUR ELECTRICAL PANEL ME FARK AUR DETAILS.

Electrical Switch gear ya Electrical panel ya Electrical Switchboard in teeno ka matlab aik hi hota hay. Electrical switchboard electrical ki controlling system hota hay jis se plant ki controlling ki jati hay. Electrical distribution board chotay swich gear hotay hain jab kay swich gear panel baray hotay hein. char kisam kay switch gear hote hein. (there are 4 types of switch gear).


  1. Low Voltage Switchboard
  2. Medium Voltage Switchboard
  3. High Voltage Switchboard
  4. Super high Voltage Switchboard
  • Low voltage switch gear me DBs wagera aati hein. Distribution boards hotey hein jo choti machines wagera ki controlling kay liye hotay hain.
  • Medium Voltage Switchboard mein Wo switch gear hotay hein jo zyada tar Companies kay Power plant me istimaal hotay hein Companies ki controlling kay liye.
  • High and Super high Voltage Switchboard Power plants and grid stations mein use hotay hein jaha high voltage hota hay.
VOLTAGE RATINGS:
Switchboard ki alag alag voltage ratings hoti hein, Jo char categories me divide hein.

  • 1 Volt se lekar 1000 volts tak Low voltage me hota hay.
  • 1001 volts se  35000 volts tak medium voltage me hote hein.
  • 35000 volts se 220000 volts tak high Voltage Switchboard me hote hein.
  • 220000 volts se ziada voltage phir Super High Voltage Switchboard me hote hein.

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Saturday, 14 January 2017

THREE PHASE STANDARD MOTOR CONNECTIONS

Three phases me star delta/ induction/ Motor ky connections konsay hein aur kesey hein, Ye connections Standard hein.


3 phase connections

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SAWAL KA JAWAB DO. ELECTRICAL PRACTICE QUESTION

Question Ka Jawab Do, Question For Practice.
Ye Question Voltage aur Frequency ky haawaly se hay.
Sawal ye hay ky: Low Frequency ky Disadvantages kiya hein. ?

Apky answer se visitors seekhengay.

electrical urdu

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