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Can I use a buck boost transformer I have an old building that the electric was upgraded to 120 208 volts but I have an old motor that was wired off the old 240 V grd b phase service?
Wiki User
∙ 14y ago
Yes, you should be able to employ a buck boost Xformer to boost your 208V to the motors specified 240 V. Make certain when your buy or order the Xformer that it has taps to supply 240V specifically. Most will in that voltage range. The next important thing is that the new Xformer must be capable of supplying the full horsepower required by the motor. Transformer output capacity is measured in VA or volt-amps. In all praticality, this means watts. To get the number of volt-amps or watts your motor needs, multiply the number of horsepower of the motor times 746. ( 1 Horsepower = 746 Watts) example: a 3/4 hp. motor would need 3/4 or .75 X 746 W or 559.5Watts or volt-amps.Therefore a standard 500VA or .5KVA transformer wouldn't have quite enough output and you'd have to go to the next standard size 750VA. But the bottom line here is cost. Buck Boost Xformers are expensive. Figure out what the correct size of transformer you need to run your motor. Then price it out. Then price out a new 208volt motor of the same hp. rating as the one you have. If the motor is cheaper, well then there you go, just buy a new motor. Unless the BB Xformer is a lot less than a new motor, I'd advise buying a new motor and then you have a NEW motor instead of an old motor with a transformer and the hassle of wiring it up. ( For the record, the difference between the pure value of volt-amps and watts or power is that in alternating current, the CEMF, (counter electromotive force) creates a small power or wattage loss because of increased resisatnce. This is insignificant to smaller motors, i.e., less than 10 h.p.)
Wiki User
∙ 14y ago
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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.
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.
Can you substitute 12V. AC 40va Transformer for 12V. AC 1000ma. Home service-out door fountain?
Yes, the output current of a 40va transformer at 12 volts is 3.33 amps. The replaced unit had an output of 1 amp making it a 12va transformer. By doing this exchange there will be three times the capacity of the new transformer over the old transformer.
What is off-peak circuit?
If you're using it in reference to electrical service it generally means non-business hours. Off-peak electric service for instance is electric service that is at a much lower rate, however the electric company shuts off the service for a certain period of time each day, usually during the highest demand.
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 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 type of system usually consists of primary distribution lines or networks service transformer banks and secondary lines or networks?
Electric power systems
What is a main distributors service cable and what is it connected to when first enering a build?
The main supply will first come from the power company to a transformer to reduce the voltage then from the transformer to the weatherhead then through the house meter to the main disconnect on the outside of building then to the switchgears main. The cable coming from the transformer to the meter and to the top of the main disconnect is the Main service cable
When was Service Electric created?
Service Electric was created in 1948.
What is the cable between the service panel and electric meter called?
Whether you have an overhead or underground feed, that section of the installation is referred to as Service Entrance Conductors. On an overhead installation, it includes the conductors on BOTH sides of the meter, from the service drop conductors (attached at the service head) to the service equipment LINE terminals. On an underground installation, it refers only to the conductors between the meter's LOAD side and the service equipment LINE terminals. The conductors on the LINE side of the meter come from a distribution transformer and are unbroken between the transformer and your meter.
When was Nashville Electric Service created?
Nashville Electric Service was created in 1939.
What type of electric does a home have?
In the US, home electric service is typically 240V AC, 60 hz. The input service is split at the transformer center tap, providing the typical house with either 2 120 VAC circuits or 1 240 VAC circuit, depending on what you're using on a specific circuit. Some other countries use 50 hz.
What is Upgraded in-flight service in Air bus A300 in aviation industry in India?
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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.
When was Packard Service Building created?
Packard Service Building was created in 1910.
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 difference between a service-entrance switchboard and a distribution switchboard?
Service-Entrance switchboard has circuit breakers that sends the incoming high voltage from the transformer to different distribution switchboards around the building that goes to different power operating machines or appliances. The service Entrance switchboard have large pumping circuit breakers since it has to do with large voltage. when electricity enter the service entrance circuit breaker it is at 480V + and when it goes into the service entrance switchboard it reduces the voltage to proper voltage for the building and sends it to the distribution switchboards.
