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Can you use 240V single phase power to power 277V fluorescent light fixtures?
Wiki User
∙ 16y ago
No...but you can buy an "autotransformer" that will boost the 220 to 277. Transformers of this kind can be the auto type or isolation type and are available at a much higher cost that it would be to just buy 220 volt ballasts and sell the 277 ones at your next yard sale. The fluorescent lamps probably won't start with such a severe undervoltage (80% rated). If they do start, they won't work well and the lamps will have reduced life.
Wiki User
∙ 16y ago
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What are the two faces of photosynthesis?
light face and dark face.Actually it is phase not face. They are light reaction and dark reatcion
16 primary colors?
The mantis shrimp possesses 16 different kinds of color receptors in its eyes. Additionally, these shrimp are able to detect the phase and polarization factors of light.
What is the phase shift of y csc2(x )?
There is no phase shift.
Cells that are not dividing remain in the phase of what?
the G1 phase, dawg!
At what condition the phase angle equal zero?
That means that the voltage and the current are in phase.
Are all 480 Volt light fixtures 3 phase or are some single phase?
I do not believe any lighting fixtures of any voltage have ever been made to work off of three-phase circuits. Light Fixtures are always single-phase 2-wire circuits In the USA the standard voltages for branch circuits are: 120, 208, 240, 277 or 480 The light fixture must be rated to match whichever field voltage is being used. Some light fixtures are made multi-rated so they can be used on more than one circuit voltage
Do any businesses use single phase power?
Single phase power is good for small loads like lighting fixtures and heating devices.
Why use 277v light fixtures instead of 110v light fixtures?
277v light fixtures are more efficient to operate and less expensive to install than a 110v fixture of identical wattage. 277v light fixtures are typically installed when 480V 3 Phase primary electric service supplies a commercial or industrial facility. 277v lighting circuits are single phase circuits using one of the 480v primary phases (A,B & C) to Neutral. The higher voltage allows more fixtures per circuit using smaller conductors and longer runs typically required in warehouse lighting applications. ( Amps = Watts/Volts: 400W/277V Fixture = 1.4 Amps, 400W/110V fixture = 3.6 Amps) With 480V 3 Phase primary service, 110V Single Phase power is created using a Step-down transformer. The voltage transformation process consumes power (kWh) and the 277V fixture will consume less kWh than a 110V fixture if identical wattage, especially in fixtures with ballasts such as fluorescent or High Intensity Discharge (HID), like Sodium, Metal Halide or Mercury Vapor.
Light of a single wavelength and having all waves in phase is?
monochromatic, coherent
Can you use a 67 watt light bulb in place of a 60 watt bulb?
yes, it can be used - single phase voltage of 230v. 50HZ is important
Is the type of wiring in most homes single-phase or three-phase?
Single phase.
Two phase instruments?
There is no such thing as a two phase instrument. There is only single phase and three phase. You can only have: single phase/ one pole single phase/ two pole three phase/ three pole
Single phase and three phase circuit?
Yes, there is a difference between single phase and three phase circuits.
Is Europe ac power single phase?
In Europe they have both single phase and three phase.
How do you convert a 3-phase system to a single phase?
By having a transformer with 3 phase input and single phase out put
Can you tap off a 3 phase 277volt ac light fixture to power a single phase 120 volt ac recptacle?
NO! The voltages available in the 3-phase system are 480 (if you wire phase to phase) and 277 (if you wire phase to neutral) Don't try it!
When you look at diagrams for wiring fluorescent lights you do not see clearly a neutral wire All electrical components need it Where is it in fluorescent lights?
Actually, many components do not have or need a neutral. 3-phase equipment such as motors, heaters and the like do not use a neutral. Some older 240V electric clothes dryers (in the US) did not have a neutral. The 2.5 ton, 240V airconditioner on my roof doesn't use a neutral either. Fluorescent fixtures do however, as you note, need a neutral. The two power wires coming out of the ballast are usually a black and a white wire in the US, the white wire is the neutral. On older fixtures with a separate starter, the white wire (neutral) may not go to the ballast. Instead it goes to the tube socket. It's still white, though. Note that many of the current rapid-start fixtures also need a grounded reflector to reliably start. These fixtures will require a hot, neutral AND ground conductor, properly connected, to work.
