The total power of my equipment is 600kw should choose how much capacity of the transformer?

The total power of the equipment is 600kw should choose a transformer with a capacity of 800KVA.

The capacity specified on the nameplate of the transformer is the rated capacity, which refers to the tap changer is located in the main tap, is the rated no-load voltage, rated current and the corresponding phase coefficient of the product.

For three-phase transformers, the rated capacity is equal to = 3 × rated phase voltage × phase current, rated capacity is generally expressed in kVA or MVA.

380v?450kw motor can not be started directly, its starting current as well as the impact are too large, the grid into can not stand, a start will be old tripped.

Expanded Information:

There is a total capacity of 600KW. p>600KW is the total capacity, there should be a lot of sub-equipment, the simultaneous use of these devices can be taken 0.7 ~ 0.8 coefficient can be. Inductive load is more, should be reactive power compensation, so that the power factor of 0.9 or so. A transformer, in order to meet the future expansion value needs, as well as considering the long-term service life of the transformer, a single transformer load should account for 70% of its capacity.

So the calculation of transformer capacity of 600 × 0.8 ÷ 0.9 ÷ 0.7, calculated transformer capacity is not less than 762KVA. so a single optional 800KVA transformer.

Ideal transformer original and secondary coils of the power is equal P1 = P2. ideal transformer itself no power loss. The actual transformer always exists loss, its efficiency is η = P2 / P1. power transformer efficiency is very high, up to 90% or more.

For various forms of equipment that can convert electrical energy into heat, the rated power is generally the maximum power. Usually limit the maximum power factor for the loss of heat, the maximum heat dissipation is calculated in the same way as the calculation of energy-consuming equipment. Power rating is usually expressed in watts of actual power or visual volt-ampere characteristics, but for equipment used in ultra-high-power systems, each unit is given a power rating.

Reference:

Reference:

Reference: