#5 kva to amps full#

(K= 1,000) The full value in VA, 75,000 divided by 1.732 = 43,302, which is then divided by the Voltage 208V = 208.2 Amperes. Three Phase Example: Using a 75 KVA Three Phase Transformer as a starting point. This is a 'Two Step Division', technique: VA / Voltage = Amperage. (K= 1,000) The full value in VA, 50,000 is then divided by the Voltage 240V = 208 Amperes. Single Phase Example: Using a 50 KVA Single Phase Transformer as a starting point. Note: This is a sample kVA calculation and does not take into account possible special load requirements, such as found with motors or some medical equipment, or other specialty applications.Īmperage provided for a given KVA can be determined by similar techniques: From the Digest, an EXN75T3H will satisfactorily serve this load. This calculates to 63+ kVA, thus we round up to a standard Three Phase size 75kVA. From the Digest, an EE50S3H will satisfactorily serve this load. This calculates to 42 kVA, thus we round up to a standard Single Phase size 50kVA. Single Phase Transformer Example: V = 240, I = 175 Therefore: kVA = (240 x 175) / 1000 = 42 kVA Then round up to the next standard 3ph kVA rating as found in Section 14 of SquareD/Schneider Electric Catalog, Digest 178. Where 1.732 is the simple numerical value for the square root of 3 (1.7320508.) Three Phase Transformers: kVA = (V * I * 1.732) / 1000

Single Phase Transformers: kVA = (V * I) /1000 To determine kVA you must have at least two pieces of information: There are also the following methods for calculating or finding the Required Capacity kVA Rating or Amperage Capacity for Single and Three Phase Transformers:Ģ.

This link on the Schneider Electric Website is a Transformer Data Calculator: This Frequently Asked Question offers three different methods for finding the needed information:ġ.