How many kVA transformer do I need?

How many kVA transformer do I need?

Since you know kVA = V * l / 1,000, we can solve for V to get V = kVA * 1,000 / l. So you’ll multiply your kVA rating by 1,000 and then divide by the amperage. If your transformer has a kVA rating of 75 and your amperage is 312.5, you’ll plug those numbers into the equation — 75 * 1,000 / 312.5 = 240 volts.

How much load can a 50 kVA transformer handle?

Three Phase Transformer

KVA 208V 2400V
37.5 104 9.03
45 125 10.8
50 139 12.0
60 167 14.5

How big is a 25 kVA transformer?

25 kVA, 1-Phase, 240 x 480 Primary Volts – 120/240 Secondary Volts, NEMA 3R, Shielded Isolation Transformer, Encapsulated, 60 Hz. HxWxD: 18.44″ x 16.13″ x 13.34″.

How much load can connect to 1000 KVA transformer?

1. Oil cooled transformer can be loaded upto%.2. Air cooled transformer can be loaded upto% i.e.1. Oil cooled transformer kva transformer loaded upto kva2. Air cooled transformer kva transformer loaded upto kva

How is the kVA rating of a transformer calculated?

Transformer capacity is rated in KVA (kilo-volt-amperes). The load voltage and load amps must be known to calculate KVA rating. * NOTE: We do not recommend loading a transformer above 80% of its KVA rating. When the KVA rating has been calculated, divide that number by 0.8 to get the minimum KVA rating needed.

How is the capacity of a transformer determined?

Transformers are sized by determining the total load required (in amps). Transformer capacity is rated in KVA (kilo-volt-amperes). The load voltage and load amps must be known to calculate KVA rating.

How many amperes are in a 250 kVA transformer?

For a 440 V 50 Hz 3 phase generator, current per phase at rated 250 KVA load will be 250 x 1.3 = 325 A approx . However, a DG set is normally not loaded above 80 %, so actual current will not exceed 260 A. You can calculate the current for any other voltage from the same principle.