Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / karthik ccel
If i consider your 644kW load as a motor then,
I Assumed some parameters are:
644kW Motor, Power Factor - 0.9, Efficiency - 0.9, Load
Connected Voltage - 415V Then,
I = (644*1000) / (1.732*415*0.9*0.9) = 1106Amps
Considering 20% Margin = 1106 * 1.20 = 1327Amps
Conclusion:
So, We can choose Breaker rating is higher than that
1327Amps. Generally no one use the MCCB breaker above
800Amps. So, we can prefer the 1600Amps VCB Breaker for that
644kW Load.
| Is This Answer Correct ? | 6 Yes | 3 No |
Post New Answer View All Answers
How is the speed of a DC shunt motor related to the armature current?
wheather the size of windings in motor and generator are the same
Differentiate between digital phase converter and ordinary phase converter.
dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour
what is capacitor voltage transformer?? how it is different from potential transformer?
What are IR values and what it should be for coil and for insulator
what is the k var ratting of 1250kva
Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)
What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.
briefly explain the main blocks found in a microprocessor based system
Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?
How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.
During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP
Describe the test procedure to determine the vector group
write down the formula of cable size in RM if current is 50Amp.
