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Transformer 208 volt primary and 480 volt secondary three phase 75 kva what size fuses on primar and secondary?
200 and 100
What happens when input voltage is fed to the secondary winding of a transformer?
The transformer operates in reverse. In other words, a step-down transformer becomes step-up, and vice-versa. Example: a transformer with a 480 volt primary and 120 volt secondary: Ratio = 4:1 (480/120=4) Fed in reverse - Ratio = 1:4 Apply 120 volts, output is 480. Note that if you accidentally reverse the transformer, still feeding it with 480 volts, the output would be 1920 volts (480 X 4 = 1920) - probably not a good thing!
How can you hook a 230v 3 phase lathe to 480v 3 phase incoming power?
Inspect all motor labels and see if they are dual voltage motors. If they are, they should have a label on them telling you how to convert the motors for 480 volt. This is a relative simple task. Converting to 480 volts will lower the motor current to half of the 230 volt rating, so you will have to change the overload heaters in the individual motor starters. You need to do this to protect the motors in case of overloading. Last the control transformer will need to be reconnected for 480 volt.
Should 2 legs of 480 volt 3 phase each have 480 volts?
Across a 480 volt three phase system, 480 volts should appear across L1 and L2, L2 and L3 and L3 and L1.
Will a120 volt meter blow up if installed in a 480 volt installation?
Yes
What color should a H2 Conductor on 480 volt transformer should be marked?
The conductor for H2 connection on a 480 volt wire transformer should be marked:
How many watts does a 1000 watt 480 volt sports light draw?
Your question answers itself... 1000 watts, when operated on a 480-volt source..
How do you wire a 277 to 120 volt transformer?
The voltage 277 volts is a three phase line to neutral voltage of a 480 volt system. What is needed for the protection of the transformer is a two pole breaker from the 480 volt CDP (Central Distribution Panel). The breaker will be sized to the KVA of the transformer. The wire will be sized to the breaker plus 25%. The electrical code requires that on motor and transformer feeders, they be sized to 125% of the total current capacity of the equipment.
What is the output current of a 480 Volt primary 208 volt secondary - 3 phase transformer?
You need to mention the Load connected to find the current.
Transformer 208 volt primary and 480 volt secondary three phase 75 kva what size fuses on primar and secondary?
200 and 100
Can you change 30 amp to 60 amp?
Yes, if you use a 240 volt to 480 volt step up 15 KVA transformer. This will give you 30 amps usable at 480 volts.
How many amps will a 3 phase 480 volt 4kw heater draw?
8,33 Amps
What happens when input voltage is fed to the secondary winding of a transformer?
The transformer operates in reverse. In other words, a step-down transformer becomes step-up, and vice-versa. Example: a transformer with a 480 volt primary and 120 volt secondary: Ratio = 4:1 (480/120=4) Fed in reverse - Ratio = 1:4 Apply 120 volts, output is 480. Note that if you accidentally reverse the transformer, still feeding it with 480 volts, the output would be 1920 volts (480 X 4 = 1920) - probably not a good thing!
How do you convert 277v to 120v for an outlet?
i think you just have to change the breaker from a 277 to a 120. 277 breakers are usually a 2 pole breaker and 120 is a single pole breaker. NO. 277v is not two poles, it is one pole, one single pole breaker in a 480 volt 3 phase system (typically). If you want 120 volts from a 277 volt source you need a step down transformer 277 volt to 120 volt , or 480/277 to 120/208 .
How many gallons of oil in a 2500 kva 12470 480 volt transformer?
Oil is used to cool the transformer. There is no telling what the transformer in question uses without knowing the specific part number and looking up the specification.
Can you convert a 277 volt ac unit to 230 volt?
There in no quick and inexpensive way of doing this conversion. A transformer would have to be used and this type of winding is not common. 277 volts is the wye voltage of a three phase 480 volt system.
Can you run 480 volt motors in a 380 volt system?
Can I run 480 volt , 60 HZ motor at a 380 volt , 60 Hz system?
