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Can you make a three phase light ballast work on 110 or even 220?
Wiki User
∙ 14y ago
No. A three-phase ballast requires three-phase power
Wiki User
∙ 14y ago
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Phase imbalance on three phase compressor Can a phase imbalance cause a compressor to lock up mechanically even if power restored to unit?
yes
Why three phase motor run in reverse even if it is not wired to run in reverse direction?
If a three phase motor in running in reverse, then one of the phases is reversed, plain and simple. If the wiring is correct at the motor, perhaps the phase reversal occurred someplace else.
What kind of electrical savings can be expected between a 3 phase convection oven and a single phase?
Virtually nothing. The only real benefit you would get is if you had three phase vs. single phase fans, and I'm fairly certain even the three phase convection ovens use single phase fans. The oven will be rated at a certain kW usage, which applies whether it's three phase or single phase (...and will be ~ the same). If the three phase convection oven kW usage is slightly lower, it is because it is heating slightly less (so its' kW rating is actually less than the single phase), and vice versa. Insulating factors will have a significantly higher impact on cost savings compared to single vs. three phase in this instance.
Can an overhead 400W light with built in ballast that is currently wired to use 480V be rewired to use 120V?
Only if the ballast is a multi tap ballast.:Even if you could install a 120V ballast, or tap it to 120V with the existing one, Current may become an issue. To run the 400W light (sodium?) Now instead of the .833 amp range it's more like 3.33 amps. Supply wiring would have to be able to handle that. Those types of lights are often on long runs to building and grounds lights, parking lots, etc. Using 480 saves a lot on wiring costs.
Can you use a 400W high pressure sodium bulb in a metal halide ballast?
No, the ballast has to be matched to the lamp. 250 watt ballast, 250 watt lamp. Also be sure to match the lamp type to the proper ballast even though the wattage is the same. HPS ballast to HPS lamp, Metal halide ballast to metal halide lamp and mercury vapour lamp to mercury vapour ballast.
How do you change the ballist in a light fixture?
Ballasts can be quite different even if you order a replacement part for a specific fixture. You need to follow the wiring diagram on the new ballast. If this is confusing or not easy to follow, you need a competent electrician to do this for you.
Which phase of a three phase system should current transformer be installed?
current transformers used for relaying and metering purposes should ideally be installed on all three phases. For specific purposes, you may only use CT's on two phases, such as when implementing certain types of ground relaying, but even in this instance three phase CT's are necessary for phase to phase fault protection. I know it is sometimes a utility practice to only meter off of two phases, as long as system voltages and currents are well balanced.
The dark reaction phase of photosynthesis occurs even without light as long as there suffcien supply of light reaction t lo?
The light reaction makes two substances needed by the dark reaction: ATP and NAPH. As long as these two substances are available the dark reaction can continue, even in the absence of light. However when they run out more light is needed to replace them.
If the moon is in its new phase tonight what phase will it be in a week from tonight?
an old phase or even a total eclipse
What are the requirements of the south beach diet?
The south beach diet requires you to follow three phases. The first phase consist of eliminating such things as sugars and carbohydrates. The second phase allows you to add certain fruits and vegetables back into your diet. The third phase is the maintenance phase and allows you to enjoy even more foods.
Why can you see the moon very faintly during a certain phase?
We can see the Moon very faintly during this phase because, even though there is no Sun's light reflecting from the Moon, there is a small amount of light reflecting off Earth to the Moon. This 'Earthshine' is barely seen as a reflection from the Moon here on Earth.
What is the difference between neutral point and earthing?
Earthing point is where conductor is directly connected to ground and its potential is always zero. Neutral is a return path in single phase system and in three phase system Neutral point will have zero potential if all the loads are balanced in the system. In un balanced three phase system even neutral point will have some potential
