SGP216 Vacuum Circuit Breaker

Lectures on Switchgear & Protection By Dr. Tirupathiraju Kanumuri, Assistant Professor, NIT Delhi
Link for Material
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Lectures on Power Systems: • POWER SYSTEM
Lectures on EMFT: • Electro Magnetic Field...
Lectures on Synchronous Machines:
• Synchronous Machines
Lectures on Special Electrical Machines: • Special Electrical Mac...
Lectures on Transformers: • Transformers
Lectures on DC Machines: • DC Machines
Lectures on Induction Motors:
• Induction Motors
Lectures on Basic Electrical engineering:
• Basic Electrical Engin...
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[@sklaa605]

Sir every topic from u is nice explanation

[@veena3889]

Sir can you please upload lectures on electrical system design ,electrical estimation

[@surendrakverma555]

Very good. Thanks 🙏🙏🙏🙏🙏🙏🙏

[@himanshuarya2292]

Thank you sir

[@Adityasingh-sq7gd]

Question) A 400 KVA, 10KV 50 Hz three phase transformer has an internal reactance of 10%. Calculate the external reactance required to limit the fault current to 320 Amps.

[@Adityasingh-sq7gd]

sir i am getting the total percentage reactance required = 7.215% . Full load current = 400*1000/10*1000*✓3 = 23.09 Ampere . Now if we calculate %X =( 23.09/320 )*100 = 7.215%. Sir it is coming less than the percentage reactance given question and it is asked to calculate extra reactance , here i am confusing

[@Adityasingh-sq7gd]

@@lecturesinelectricaleng sir that is not fault current it is full load current . Fault current is given 320 Amps

[@himanshu2232]

Thank sir

[@chandusekhar8703]

Its been told tht vcb's are not suitable for inductive switching in the earlier..why can u pls explain

[@chandusekhar8703]

@@lecturesinelectricaleng in cb application lecture