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The (ideal) voltage is 480V line to line. The line to neutral voltage (if it is a grounded system - 4 wires) is 480 / 1.732 = 277 volts.

The actual measured voltage may be slightly higher or lower than this.

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15y ago

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What would full load amps be on a 480volt 90 kw electric heater be pulling 36 amps per leg?

90 kW on 480 volts single phase would be 187.5 amps. On 480 v 3-phase it would be 108 amps.


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50 kVA is 16.667 kVA per phase and you divide that by the phase voltage. Current = 16667 / 277 = 60 Amps


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What are the volts per phase on a 240 volt system?

By 'volts per phase', I assume you mean 'phase voltage' as opposed to 'line voltage'?It depends on the country in which you live. In North America, for example, the secondary output of a three-phase distribution transformer typically delta connected, 240 V corresponds to both the phase and line voltages.In other countries, where a three-phase distribution transformer's secondary is wye connected, 240 V is typically a phase voltage and 415 V is a line voltage.


What is the voltage between neutral and earth if neutral is broken?

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What does 160kVA equate to in amps in a 3 phase system?

It doesn't 'equate' to current (amperes) because they are two quite different quantities. However, you can find out how much line current is flowing (for a balanced load only) if you divide the number of volt amperes by (1.732 x VL), where VL is the line voltage.


What is max single phase hp as per nec?

The maximum single phase HP motor listed in the CEC is 10 HP. At 115 volts 100 amps and 230 volts 50 amps.


What frequency is used for electric power delivered to homes in Canada?

Homes in Canada use 240/120 volts at 60 cycles per second (60Hz) single phase. It is a split-phase system that delivers 240 volts to large domestic appliances (e.g. washing machines, dryers, air-conditioners, etc.) and 120 volts to lights and general socket outlets used for small appliances (coffee machines, electric shavers, televisions, etc.).


What is cable size for a 7.5kw 3 phase induction motor 70 meter run for cable 415v?

Current is about 18 amps per phase. Allowing for power factor and startup, I'd size the wire for 40 amps per phase, which is #5 wire. This wire has a resistance of 0.39 ohm per 1000 ft, which is 0.39 ohms per 305 meter, or 0.09 ohms per 70 meter. At 40 amps, there is a voltage drop on the wire of 40*.09 or 3.6 volts, less than 1% loss, so that is OK. Use 4 conductor #5 copper wire insulated for 480 volts. <<>> A #12 copper conductor will limit the voltage drop to 3% or less when supplying 13 amps for 230 feet on a 415 volt system.


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