800kw motor how much transformer
Power supply voltage is how much, the motor rated voltage is how much, 0.4KV or 6KV, or 10KV. It is the starting mode is the frequency or other, consider more factors, it is recommended to consult the motor manufacturers more reliable.
Transformer power factor is generally 0.8 (also 0.7), then the total power transformer = 800 / 0.8 = 1000KW.
According to the "Power Engineering Design Manual", the transformer capacity, for a simple load of a single transformer, the load rate is generally about 85%, so the above example, the transformer capacity = 1000/85% = 1176KVA, select 1176KVA above capacity transformer.
If it is a single motor, due to the starting current, even if the measures taken, but also increase the corresponding transformer capacity.
If the three-phase imbalance, but also a corresponding increase in transformer capacity.
800kw motor can generally choose 0.8 motor power in about 800KW with 1000KVA. Motor power in 1400KW or so with 1750KVA. If you are equipped with reactive power compensation (in general, the power company also requires you to match, if the power factor is less than 0.9 Is to be fine) Transformer can also choose a little smaller, like 1000KVA transformer power factor of 0.9 when you can take 900KW load.
Can also be based on
