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480 v three-phase is a type of supply used in the US for small factories and businesses needing up to a few hundred kilowatts of power. It provides three separate 277 v single-phase supplies and lighting and other appliances are available for 277 v.
480 v split-phase is a different type of supply used in the UK and it is a single-phase supply with a centre-tap on the secondary, supplying two live 240 v lines and a neutral. This type of supply is normally used for a remote group of houses that might be 300-400 yards from a transformer fed from a single-phase 11 kV spur.
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What is the voltage between each lead of a 480 volt three phase delta secondary?
A 480 v three-phase system has 480 v between live lines and 277 v from each line to the neutral. This type of supply is common in North America for supplying for example small factories that need more power than a 120/208 v three-phase system can supply.
How many amp in 480 vac 3- phase primary transformer if the secondary it's 120 vac?
This 480-v three-phase transformer probably has a 208-v three-phase secondary which has 120 v from each line to neutral. In that case the primary current is 0.433 times as much as the secondary current, so 100 amps in the secondary means 43.3 amps in the primary.
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.
What is the most typical industrial three-phase voltage in Thailand?
The most typical three-phase voltage used in China is 380 V.
What is the amps of a 5.5 kw 480 volt 3 phase?
Current in 200kw at 480 volts = 200,000/480 = 416.667 amps
What is the voltage between each lead of a 480 volt three phase delta secondary?
A 480 v three-phase system has 480 v between live lines and 277 v from each line to the neutral. This type of supply is common in North America for supplying for example small factories that need more power than a 120/208 v three-phase system can supply.
What is the nominal voltage of a 150 kW 480 v generator?
480V.
Will a step up transformer from 208 to 480 save on power bill?
No, you are billed for the energy used so in principle the voltage does not affect the cost. The equipment used is designed for a set voltage and cannot be used on a different voltage. The reason to choose 480 v instead of 208 v would be based on the size of the site, and if there are distances of more than 300 ft involved in the power supply it might be economical to start with a 480 v system. The choices are between 120/208 v and 277/480 v so that using the higher voltage will require the installation of 277 v lighting
What is the resistance of a 120 volt lamp draws 0.25 amperes of current?
v/i=r so 120/0.25=480 480 ohms is the resistance
Why are commercial lights 277 volts?
Many commercial buildings in the US are supplied with 480 V, three-phase utility power. The phase to neutral voltage of a 480 V system happens to be 277 V. 277 V lighting can be fed directly, eliminating the need for additional transformers and related gear.
What will be cable rating for 5kva 3phase system?
It depends on the voltage: 208 v 14 amps, 415 v 7 amps, 480 v 6 amps.
What is the meaning of V V T I you?
what is VVT-I
What is the meaning of ang panday by amado v hernandez?
meaning of ang panday by amado v. hernandez
What is the full load current of a 50 hp three phase ac motor operating at 230 v?
Assuming you can get a three-phase 230 v supply, which has 133 v between neutral and each live, the full-load current assuming a 30% increase for power-factor and efficiency considerations would be 120 amps. In Europe the standard three-phase supply is 400 v. In the US three-phase supplies are normally 208 v or 480 v and an alternative option is a 240/480 v split-phase (single-phase) supply.
What is the meaning of V?
V is the Roman numeral for the number five.
How many watts is 1 hp at 480volts?
A 1-HP motor is reckoned to draw 7 amps at 240 v single-phase. The same power of motor would draw 3.5 amps at 480 v single-phase, but a 480 v supply could most likely be a three-phase suppy, and the current in that case would be reckoned as 2 amps.
What is the voltage drop across each phase if a wye connected load has a voltage of 480 v applied to it?
.24
