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How many amps do you need to supply a 150kva transformer to get 118amps 480 volts?
Wiki User
∙ 12y ago
Rephrase your question, as it doesn't make any sense.
If the primary side of the transformer is 480 volts 3 phase, this transformer can be supplied from a breaker as big as 180 amps. If 480 volts 3 phase is your secondary then you can supply up to 180 amps to your loads.
Wiki User
∙ 12y ago
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How many volts does a mini connector have?
Depends on use,supply,AC,DC .Voltage,transformer ???
How you get 5.6 volts 12 ma from 230 volts supply in current transfomer?
You would not connect a current transformer to a 230 v supply. To get 5.6 v 12 mA you could get a 230 to 6 volt transformer, then drop the supply from 6 to 5.6 using a 33-ohm resistor.
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Change the trailer light bulbs to 24 volts and supply a 24 volt source to power them, in that order.
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The voltage can be changed by a transformer, but the power remains constant. So if you have a supply of 1 microvolt, it would have to supply 1 million amps to give a power of 1 watt (power = volts times amps).
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The voltage of 277 is the wye connection of a 480 volt three phase supply. The only way to reduce 277 to 120 volts is with a step down transformer.
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In a standard transformer, the ratio of input volts to output volts remains constant.
Why does your 24 volts transformer get hot then burn out?
A transformer gets hot if it is run at excessive voltage or excessive current. Either of those two would cause it to overheat. <<>> It sounds like the load on the secondary is greater that what the transformer can supply. A transformer is wound for a specific amperage output at a specific voltage. This is stated on the transformer as a VA or in larger transformers as KVA. If you divide the 24 volts into the VA listed on the transformer you will get the maximum amperage value of the transformer. If the device that you are connecting to the transformer is greater in amperage draw that what the transformer can supply, this will cause the heating effect and if left connected eventually burn the transformer out. A fuse should be installed in the secondary 24 volt output, rated at the maximum output of the transformer. This will limit the transformer to its manufacturer's recommended current output.
How do you convert 480v to 120v?
to derive 120 volts from 480 volts you have to use a transformer, based on your needs. If you needed 100 amps at 120 volt single phase you would need a 12kva transformer. This is just an example.
Would 230 volt item applicance work on 220 volt in south Africa?
A step-up transformer would be required to supply 230 volts from a 220 volts source from South Africa.
If we have 13 volts on earth and neutral so?
The neutral and earth are connected at the supply transformer, so 13 volts on the neutral means that you are far enough from the transformer to have a 13 volt drop on the neutral. You probably have the same drop on the live, so the total volt drop could be 26 volts, which may be excessive. It could indicate a fault somewhere.
