Distribution Transformer Capacity Rating

Generally, distribution transformer capacity 630KVA and below are collectively called small transformers; distribution transformer capacity 800-6300KVA are called medium-sized transformers; distribution transformer capacity 8000-63000KVA are called large-scale transformers;

30, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000, 25000, 31500, 40000, 50000, 63000, 90000, 120000, 150000, 180000, 260000, 360000, 400000 kVA.

The total capacity of the equipment is expressed in kilowatts, while the transformer is expressed in kilovolt-amperes. Kilowatts divided by power factor (generally 0.75) equals kVA. Commonly used transformers are: 160KVA, 250KVA, 400KVA, 500KVA, 630KVA, 800KVA, 1000KVA, 1250KVA, 1600KVA, etc., and there are larger ones.

Common input voltages are: 220KV, 110KV, 35KV, 10KV.

Output: 35KV, 10KV, 6KV, 0.4KV. Commonly used is 10KV/0.4KV.

The voltage level is determined by the local power supply line.

Distribution transformer specifications are divided into 36 volts, 110 volts, 0.4 kV, 10 kV, 22 kV, 6 kV, 35 kV, 110 kV, 220 kV, 350 kV, 200 kV, 500 kV Volts, 250 kV, 600 kV.

The rated distribution transformer capacity is the apparent power of the transformer, which indicates the ability of the transformer to output power under rated conditions.

The capacity can be designed arbitrarily. The current standard series is the R10 optimized series, that is, 10 to the 10th power increments. In terms of capacity, the rated capacity of transformers in my country is based on the R10 priority coefficient, that is, calculated in multiples of 10 to the 10th power, 50KVA, 80KVA, 100KVA, etc.

10KV level standard distribution transformer capacity: 30, 50, 63, 80, 100, 125, 160KVA, 200, 250KVA, 315, 400KVA, 500KVA, 630KVA, 800KVA, 1000KVA, 1250, 1600, 2000, 2500.