THREE PHASE CONNECTIONS ME STAR DELTA KYU USE KARTY HEIN.

Three phase system me ham motor connections me Star Delta use karte hein, Induction motor me ye use kyu karte hein? Ye bhhht interesting question ha. So me yaha kuch points btata hun jo is chees ka sabab ha.

1. Motor 3 se 4 guna starting current kam kar leti ha apny current se, aur current ky kam honay se Voltage automatically kam ho jaega, To losses bhi kam hoga.
   
2. Star Delta Controlling circuit, Voltage reduce hoga to Current b reduce hoga to induction motor ky jalny ky imkaan bhi kam hongay.
   
3. Aur addition mein, Motor ki Starting torque ziada hoti ha to motor ki winding kam chance hota ha jalny ya damage honay me.

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GENERATORS PARALLEL ME KU OPERATE HOTY HEIN

Generators Parallel me operate hote hein, wo kyu? Wo is liye q k parallel me operate is liye hote hein because,

1. Parallel me unki maintenance thek se kar sakty hein aur repairing wagera bhi.
2. Parallel me plant ki capacity b behter aur achi hogi.
3. parallel me connect karne se hamein continuity aur realibility service ki hamein milegi aur bager interruption ky.
4. Hamein efficient operation milega har generator ka.

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ELECTRICAL GENERATOR ME BASIC COMPONENTS KIYA HOTY HEIN?

Sab se pehly Generator ko define kar du apni language me ky Generator aik aesi machine hoti ha jo mechanical energy ko electrical energy me convert karti ha. Ab bat karte hein k generator me basic main components kon kon se hoty hein.
Generator  me basic components ye hote hein jo darj zail hein.

1. Conductor aur coil jis me magnet banta ha.
2. Flux.
3. Relative motion. conductor aur flux ky darmiyan motion.

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DC MOTOR KI DIRECTION KO KESE REVERSE KAR SAKTY HEIN.

DC motor ki direction ko reverse kese karsakty hein? ye b aik important topic ha jo students DC motor parh rhe hein specailly un k liye ok to sab se pehly ham bta dein k dc motor me do tarha ki windings hoti hein.

1. Field winding.
2. Armature winding.

Field winding se ham main field produced karwate hein, balky ye kehna thek rahy ga k field winding se main field produced hoti ha aur armature winding se armature field produced hoti ha.

Ab agar ham field winding se guzarnay walay current ko change/reverse karty hein (current ki direction ko change karte hein) to is se ham easily motor ki direction ko reverse kar sakty hein.

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ALTERNATOR ME ROTATING ARMATURE SYSTEM HOTA HA YA STATIONARY ARMATURE SYSTEM

Generally, Alternators me armature stationary hota ha aur field rotatory hota ha,Lekin ye fix nahi ha k aesa hi ho, q k small alternators me rotatory armature b hota ha, aur field winding stationary. Lekin large alternators me field winding stationary hoti ha jb ky armature winding stationary.

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