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What size feeder service cable is required in step up transformer 220 to 380V in 300 amp cirquit breaker?
Wiki User
∙ 13y ago
250 kcmil in copper and 400 kcmil in aluminum.
kcmil = 1000 circular mils.
Wiki User
∙ 13y ago
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What is the smallest size circuit breaker found in the normal home?
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
What is the wire that runs from the electric meter to the breaker box called?
Service Entrance Conductors.
What breaker can I use if I dont have a westinghouse breaker?
The Cutler Hammer BR series will fit and also the Connecticut Electric UBITBC series will fit your Westinghouse service panel.
Who makes a main breaker 200 amp service that has built in 200 amp gfci?
NOBODY!
What is a service lateral conductor?
service lateral conductors are the underground conductors between the utility electric supply system and the service point, basically the cables that bring power from the transformer to the power meter in an underground service
What is the minimum size breaker panel required for a homes main service?
50 amps
What is installing a circuit breaker?
It is inserting a breaker into a service panel.
How do you make your own transformer?
Usually the power provider will conned the wires to the transformer. If your house if fed over head, your service will attached to an insulated attachment point on the house or service mast. Then they will pass through the meter, and then into the main breaker in your electrical panel. If your house is fed underground the service wire will be burred underground and enter the electrical meter from the bottom If you can elaborate a little more I can give you a more precise answer
What is the purpose of main switches?
The main breaker limits the overall current to the building. Most buildings have many branch circuits that sum to more current than the service is rated for. This is not a problem as all the branch circuits are not used under high current draws at the same time. The main breaker protects the main wiring in the meter and to the transformer, and the transformer itself, from heavy current loads. It also protects from shorts in the main distribution panel.
How can you tell what your home amp service is?
Look on the handle end of the main breaker. There should be a number there. That is the amperage of the main breaker. That is the size of your house service.
Difference between potential transformer and current trasnformer?
The difference between current transformer and potential transformer is that the secondary of a current transformer can not be open circuited while under service whereas that of the potential transformer an be open circuited without any damage to the transformer.
How can you get a 240V single-phase power from a 120V 3-phase service?
First of all there is no common three phase 120 volt service. There is in North America a three wire 120/240 volt single phase service. That being said, if you want to change a 120 volt source to 240 volts it must be done with a transformer. Its classification is a step up transformer. The primary side of the transformer H1 - H2 will be connected to the 120 volts. The secondary side of the transformer X1 - X2 will be connected to the 240 volt load. The transformer is sized by the current required by the 240 volt load.
Can you use 20 kva transformer in a home?
Yes you could use a 20 kva transformer in a home. Stymied as to why it would be done though. You would need at least a 100 amp service to the home to energize the transformer. Primary side of the transformer would draw 83 amps at 240 volts. If the question was to supply the home, again yes. It would be 100 amp service equipment that the transformer would feed into.
What is the smallest size circuit breaker found in the normal home?
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
Where can you find a replacement photocell for a Malibu lighting transformer?
in service department in a dealership
How many breaker amps will a 200 amp service with no main breaker support?
Check the nameplate on the service panel. There it will tell you what the buss capacity is. On a 200 amp service nothing in the wiring configuration is allowed to be less than that the service rating. In the market there are 200 amp 42 circuit distribution panels.
What is the minimum size breaker panel for a home's main service?
50 amps
