What size breaker do I need for a 45 kVA transformer?
What size breaker do I need for a 45 kVA transformer?
For a 45kVA transformer, 125A×1.25=156A, so use a 175A protection device.
How many kVA is a 200 amp service?
With your load single phase of 200 amps at 240 volts (which is what you have coming into you home) gives you 48 KVA. This means that a 50 KVA should work.2014-12-01
How do you calculate transformer amps?
- Single Phase Transformer Full-Load Current (Amps)= kVA × 1000 / V.
- Three Phase Transformer Full-Load Current (Amps) = kVA × 1000 / (1.732 × V)
- Turns Ratio = N1 / N2 = V1 / V2 = I2 / I1
What size is a 45 kVA transformer?
45 KVA, 3-Phase, 480 Delta Primary Volts - 240 Delta Secondary Volts with 120 Volt Lighting Tap, NEMA 1, Ventilated. For Outdoor, Use Weather Shield WS14. Dimensions: HxWxD: 28" x ... 50 VA, 1-Phase, 240 X 480, 230 X 460, 220 X 440V Primary Volts - 120/115/110V Secondary Volts.
How do you calculate full load transformer amps?
- Single Phase Transformer Full-Load Current (Amps)= kVA × 1000 / V.
- Three Phase Transformer Full-Load Current (Amps) = kVA × 1000 / (1.732 × V)
- Turns Ratio = N1 / N2 = V1 / V2 = I2 / I1