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Does a 600 watt garden lights transformer pull 600 watts all the time or just the load from the lights you have on it?
Wiki User
∙ 14y ago
Watts are power. If the lights were mostly or totally switched off, you'd have a circuit generating 600W of heat somewhere if the transformer still took 600W, not only that, but when you switched on, the 600W that the transformer was consuming, would not disappear, so the total drain would be 1.2kW. ---- Don't understand the above answer. The 600 watts on the transformer nameplate is the maximum amount of wattage that the transformer can produce and still be within its safety limits. It doesn't draw that wattage all the time. If you had two 50 watt lamps connected to the transformer then the transformer has the capacity of 500 watts left. The transformer will only produce the wattage that the load requests. The transformer has the ability to supply twelve 50 watt bulbs. 12 x 50 = 600. Any more bulbs than 12 and the transformer is in an overload condition.
Wiki User
∙ 14y ago
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What is the rating of a step-down transformer that can step-down 230 volts AC to 30 volts AC?
The way transformers are usually rated is in voltage (primary and secondary) and in watts. In the case of a 230 to 30 volt step-down transformer, there are lots of possibilities. Let's look as some things about the transformer. When we work with transformers, we look at the primary and secondary voltages. In this case, we have 230 and 30 volts respectively. If everything is "okay" in an application, the power in the primary will equal the power in the secondary. Yes, there will be a bit of loss, but let's just do the math. If the load operating at 30 volts draws 10 amps, then the power in the secondary is volts times amps, or 30 times 10, or 300 watts. The 300 watts in the secondary must be supplied by the primary. And since it's operating at 230 volts, and because the volts times amps here will have to equal the 300 watts, the current in the primary will be about 1.3 amps. Simple and easy. But how does that solve the problem? You need to know the voltages (primary and secondary) and the current maximums or the watts (because we can calculate either one if we have the other) to be able to rate your transformer. If your transformer is rated at just 200 watts, it won't work in this application. A 200 watt transformer should never be used to supply a device that requires 300 watts of power to operate it. We usually err on the side of caution, too, and allow for a bit more wattage in the transformer than the prospective load will actually use. Using a 300 watt transformer in this application is "just enough" to supply the load, and, though it may be considered for intermittant use, no one with any electrical knowledge would recommend it for continuous operation. Please, please, please be smart about this one. It is often the case when "marginal" electrical lash-ups are brought online that the problems don't show up immediately. Only after everyone is gone and no one is about does a fire start in the electrical system, and then all the "short cuts" suddently seem foolish and unnecessary. How fortunate we are when all that happens is that property is destroyed and no loss of life occurs.
What is unit transformer?
UniT transformer are step up transformer which is connected to generating house & step up voltage from 11/15kV votlage to 220/400kV voltage level as requirement or line design parameter. It is just like transformer but connected to unit of the generating house that's why we called it unit transformers.
Why the polarity of transformer is important?
a polarity test is a test which use to check the polarity of tranformer.the rision of this test to running the two or more transformer in parallel.like bettry situation or to fin the terminals
How many watts per hour will a unit that is rated at DC 12V 500mA consume?
Power = volts x amps, so your example will be 12 x 0.5 = 6 watts. (500mA = 0.5 amp) Note we don't talk of 'watts per hour', it is just watts. 1 watt = 1 joule per second
What wattage dimmer switch should you use?
Remember that dimmers are for incandescent lights only unless you invest BIG BUCKS on dimmable fluorescent lights and fluorescent dimmers. Make sure that the switch that you replace with the dimmer does not control a plug-in outlet unless it is a lamp. You could do harm to an appliance not designed for such use. Otherwise,just add up the wattage of all the bulbs on the dimmer and buy one of the next size rating. So if you have two 60 watt bulbs, two 75 watt bulbs-- that's 270 watts total.Find a dimmer rated for 300 watts or more.
What is percentage of transformer loss at no load condition?
major component of power loss in a transformer is secondary resistance.when transformer is operated under no load,no current flows through the secondary.so under no load conditions transformer has just very small megnetic losses.
Where can I purchase umbrella lights?
Umbrella lights can be a bit tricky to find just by searching the internet. These lights are available at Amazon.com and can be found by searching their "Home and Garden" section.
Is mold on outdoor cushions harmful to children?
The most common forms of garden lights can be purchased at home depot. They offer a large variety of garden lights. Just be able to find the one that suits you best.
Which is more efficient and why 5- 50w 120v halogen lights or 5- 50w 12v halogen lights run on a transformer?
In both cases, you're operating five 50-watt lights, so you're getting the benefit of 250 watts of power. You haven't said how much power you have to feed to them, or which halogen light is more efficient, so we can't calculate any efficiency. Just on general principles, the only difference in the two setups that we're sure of is the transformer, and there's always a bit of loss in a transformer, so there's a reason to speculate that the second situation is a bit less efficient. But aside from that, we're woefully short of electrical information on which to base an answer. By the way ... There's also no reason to expect that lights running on higher or lower voltage are any more or less efficient than those designed for the opposite conditions.
Can you use 2 metal halide lamps 35W with a single transformer designed for 70W. Why?
Yes you can because you can just add up the watts taken by each lamp. They would have to be connected in parallel
I have 14 recessed lights in your tv room what wattage should you use it is quite bright with 65 watts?
Use 40 watt. You do not have to use all the lights just because they are there. Unscrew every other one to bring down the brightness.
When on high beam do lights gets stronger or just gets up?
Both. They increase in power by five or so watts and the beam rises and changes shape for longer distance.
Will lights short circuit with too many watts?
the slightly higher wattage shouldnt short your lights. the room will just pull a little more power from your fuse box so keep an eye on that and use 60 watt bulbs next time.
1.5 lighting cable how many lights on?
If that is a 1.5 sq. mm. cable all laid out in the open and not rolled up it can supply 15 amps, or 3600 watts if the system is 240 volts. Just add up the watts of the bulbs and the total must be less than 3600.
Would a 12volt lamp use more electricity using a transformer?
Electricity use is measured in watts (energy). Power is enery use in a unit of time (watts per hour or watt/hr). The electric companies charge us for the number of watts we use in hours, or watt-hours. A watt is 1volt times 1 amp. An electric bulb rated at 120 watts at 12 volts will draw a current of 10 amps. A 120 watt bulb using 120 volts will draw one amp. The filment in a 12 volt build must by necessity be of a larger diameter to carry the higher current, but will use the same energy 120 watts. Of course when we use the transformer it has losses which will add to the overal electrical consumption but it will normally be small. Motorhome use this 12 volt lighting scheme to great advanage by using 12 volt lighting run on DC batteries and only uses the engine or generator every now and then to charge the batteries.
What is the rating of a step-down transformer that can step-down 230 volts AC to 30 volts AC?
The way transformers are usually rated is in voltage (primary and secondary) and in watts. In the case of a 230 to 30 volt step-down transformer, there are lots of possibilities. Let's look as some things about the transformer. When we work with transformers, we look at the primary and secondary voltages. In this case, we have 230 and 30 volts respectively. If everything is "okay" in an application, the power in the primary will equal the power in the secondary. Yes, there will be a bit of loss, but let's just do the math. If the load operating at 30 volts draws 10 amps, then the power in the secondary is volts times amps, or 30 times 10, or 300 watts. The 300 watts in the secondary must be supplied by the primary. And since it's operating at 230 volts, and because the volts times amps here will have to equal the 300 watts, the current in the primary will be about 1.3 amps. Simple and easy. But how does that solve the problem? You need to know the voltages (primary and secondary) and the current maximums or the watts (because we can calculate either one if we have the other) to be able to rate your transformer. If your transformer is rated at just 200 watts, it won't work in this application. A 200 watt transformer should never be used to supply a device that requires 300 watts of power to operate it. We usually err on the side of caution, too, and allow for a bit more wattage in the transformer than the prospective load will actually use. Using a 300 watt transformer in this application is "just enough" to supply the load, and, though it may be considered for intermittant use, no one with any electrical knowledge would recommend it for continuous operation. Please, please, please be smart about this one. It is often the case when "marginal" electrical lash-ups are brought online that the problems don't show up immediately. Only after everyone is gone and no one is about does a fire start in the electrical system, and then all the "short cuts" suddently seem foolish and unnecessary. How fortunate we are when all that happens is that property is destroyed and no loss of life occurs.
Could you provide me with the inside diagram of a current transformer?
A current transformer is just a transformer designed to dutifully give an output related to turns ratio 1:xx.
