How to Selection of kA-Short Circuit Breaking Current rating for 400kVA Transformers 11000V/415V Medium Voltage VCB Panel Board?
Satwinder Singh
PMO | Electrical Consultant | MEP Manager | Construction Manager | Planning Manager |
How to Selection of kA-Short Circuit Breaking Current rating for 400kVA Transformers 11000V/415V Medium Voltage VCB Panel Board?
a) Power Grid Source Side Fault????????: 350MVA * Consider **
b) Nominal voltage, Un (kV) ???????????????: 12kV????????** Un = 3.6/ 7.2/12/17.5/ 24/36 kV*
c) 400kVA Transformer Primary Current=19Amp
d ) Calculation of Source Impedance (Zo):?
e) Short Circuit Breaking Capacity of Breaker. Isc (kA)
So We Selecting 630Amp, 26.3kA Breaking capacity Medium Voltage Switchgear. Refer Below Datasheet of Medium Voltage Breaker.
GA Drawing of Outdoor Duty MV Panel.
Foundation Drawing.
Manager Projects at Lumax Industries Ltd (HO) 14 years of experience in Green field and Brown field projects in Automotive Industries
2 年Good one Satwinder keep going..