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A transformer has a rating that is usually expressed in KVA. This is approximately a wattage rating. It is not dangerous but it can be the cause of some concern. An appliance has a set current that is draws. This current times the voltage is the appliance's wattage. The same goes for the transformer. It only has a certain capacity to supply a specific current that is governed by its KVA (watts). Driving the transformer beyond its rated capacity tends to heat the transformer beyond its working temperature. If left in this over current draw the transformer's windings insulation will break down and the windings will short circuit. This is usually the end of a working transformer. So short answer, more watts (amps) from appliance equals burned out transformer.

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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?

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.


Why is the number of turns in primary coil more than that of the secondary coil?

The number of turns or windings of a transformer can vary. There can be more in the primary, or more in the secondary, or there can be an equal number in a transformer that is simply used for isolation (an isoformer). More turns in the primary than secondary will create a step down transformer. More turns in the secondary are found in a step up transformer. The transformers on power poles have more turns in the primary to step the line voltage down for delivery to residential customers.


What is the purpose of a high voltage transformer?

if the transformer is distributing transformer then we shoud have to give more prefer to the high volatage to reduce losses if we distibute power at low volage there is more current which causes more losses and in hv system there is high volage and low is current so the losses are also low


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 the technical difference between oil cooled transformer air cooled transformer?

The basic difference between the air cooled transformer and oil immersed transormer is: If the heat generated in the transformer winding is capable of being swapped by the sarrounding ambient air without causing any problem to the performance of the transformer then its normally reffered as Naturally Air Cooled transformer or simply air cooled transformer. However when the capacity of the transformer increases, the heat generated in the winding of the transformer is more and the ambient air normally is inadequate to cool the windings and maintain the performance of the transformer. Its because of this reason the transformer windings are submerged in an oil tank. It has been observed that the hydrogen ions present in oil help to maintain the temprature of the winding of the transformer and thus overall performance of transformer.

Related Questions

Can you use an appliance on a 110 volts when it requires 120 volts?

Some appliances, like air conditioners and clothes dryers require about twice as much electricity as most other devices, and require their own 220V supply of electricity. Your appliance will not work with only half the amount of electricity it needs. I recommend calling an electrician and having him install the appropriate plug.


Can you plug a 115V small American appliance into 240V outlet in Australia?

No, you cannot plug a 115V American appliance directly into a 240V Australian outlet without a voltage converter or transformer. The voltage difference could damage the appliance or cause a safety hazard. It's recommended to use a voltage converter or transformer suitable for the appliance's power requirements.


How many watts is 263AW?

AW is not a recognised abbreviation so more information is needed, like what kind of appliance it is.


What does the power rating of an electrical appliance mean?

The power rating of an electrical appliance represents the rate at which the appliance uses electrical energy. It is typically measured in watts and indicates how much electricity the appliance consumes when it is in use. Higher power ratings suggest that the appliance uses more energy.


Does a 600 watt garden lights transformer pull 600 watts all the time or just the load from the lights you have on it?

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.


Can you rewire a 240v lamp light fitting or small appliance to 110v and if so how?

It is not recommended to rewire a 240v lamp light fitting or appliance to operate on 110v. This can be dangerous and may lead to overheating, electrical fires, or damage to the device. It is safer and more practical to use a voltage converter or purchase a new device designed to work with 110v.


How much energy would you save if you turned off your appliances every night?

depends on the appliance and how much watts it need. i would assume alot of energy though. but even more energy if yolu unplug the appliance


Can you plug in up to 4400 watts appliance to a 20 amperes breaker?

A 20-amp supply can be used for a 4400 watt appliance provided the voltage is 220 v or more, and the appliance is designed for the same supply votage, and the power factor is 1. On a 240 v supply the power factor must exceed 0.92.


What is the difference between using 100 watts for 2 hours or 50 watts for 4 hours?

Using 100 watts for 2 hours consumes a total of 200 watt-hours, while using 50 watts for 4 hours consumes the same 200 watt-hours. The difference lies in the power output over time: the 100-watt appliance will consume power more quickly compared to the 50-watt appliance, but they both consume the same total energy.


What happend in the riots in Harlem and watts?

Yes they where very dangerous and harmful, but people began to be more prepared in case another one happen.


Is 1500 watts better then 800 watts?

It really depends on what you are needing. If this is for an air conditioner or ceramic heater, you may not need one that big. If this is for an outdoor light to light an entire yard, you may want the bigger wattage. ■


Can you use a 12 volt transformer on a 10 volt appliance?

Yes you can, as long as they have the nearly the same output voltage it doesn't really matter. It is even more important to check three other things:* that the amperage (current) drawn by the appliance is not greater than the rated output amperage shown on the transformer's label or rating plate;* that the transformer or power supply unit produces an output that is the same kind as that required by the appliance. For instance, if the appliance requires a dc (direct current) supply it will not work on a power supply unit producing only ac (alternating current);* if the power supply produces a dc output, be sure to check that the polarity ("+" and "-") of the power supply plug's inner and outer connections matches exactly what the appliance requires. If they are the wrong way round the appliance may not work or could even be damaged.If you have them, it is best to check the rating plates of both the original power supply unit and the other one you are thinking of using, as well as the appliance's user handbook, to see exactly what voltage (ac or dc) and what amperage is required.