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What step down transformer need to supply fluorescent lamp in watts?
Wiki User
∙ 11y ago
To answer this question some values must be stated. The voltage and amperage must be known to find the wattage. W = A x V.
Wiki User
∙ 11y ago
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Is it dangerous to run an appliance with more watts than the transformer?
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.
What is tie transformer?
It is a step down transformer which is used to supply the electrical power to the station transformers and the colony transformers
How could you convert step up transformer into step down transformer?
Injecting power into the higher voltage winding of a transformer will make it act as a step down transformer; injecting power into the lower voltage winding will make it act as a step up transformer. A transformer can be used both ways.
How many windings does a auto-transformer have?
A true autotransformer consists of one, tapped, winding. For a step-down transformer, part of the winding is in series with the supply and the other part is common to both the supply and the load. For a step-up autotransformer, part of the winding is in series with the load, while the other part is common to both supply and load.But you can also use a mutual transformer as an autotransformer, by connecting the two windings in series and, then, described as above.
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 purpose of transforms?
A transformer is used to step up or step down a Voltage supply.
Is it dangerous to run an appliance with more watts than the transformer?
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.
What is tie transformer?
It is a step down transformer which is used to supply the electrical power to the station transformers and the colony transformers
What are the types of and uses for a transformer?
There are two types of transformers:- 1. Step-up transformer & 2. Step-down transformer. A transformer used to increase the voltage is called Step-up transformer. A transformer used to decrease the voltage is called Step-down transformer. Uses of step-up transformer:- in power supply stations, in picture tubes of TV, computer monitors, halogen lights, etc. Uses of step-down transformer:- in supply of electricity to homes, in the power supply to the low voltage devices like radio, music systems which are run by AC mains.
What happen if the secondary side of step down transformer supply a bigger voltage?
it would be called a step up transformer
How many watts does a 12 volt transformer consume to power a 50 watt down light?
If by "consume" you mean "waste as heat", that would depend upon the design of the transformer, but would typically be a few watts of heat loss.
Will ampere go up in step down transformer?
Transformers transformer voltage and current, but power stays constant (minus transformer losses, which are typically minor). Power is typically measured in watts or killowatts. A watt is 1 ampere times 1 volt (P = V*I). Thus if a 117 VAC transformer (primary winding) is rated at 10 amps, it is capable of producing 1170 watts. If it's secondary steps down the voltage to 12 volts then it is capable of handling 97.5 amps (97.5X 12 =1170 watts).
What is a step down transformer?
A step down transformer essentially allows devices that require low voltage power supplies to operate from a high voltage power supply. This is how it gets its name.
How can you step down a 15kv transformer single phase to 220v?
A transformer steps the voltage of an electrical power supply up or down. The transformer must be correctly designed for the voltage and current levels that it is intended for. Only ac can be used with a transformer, which is designed to work at a particular frequency.
What is the load side of a transformer?
The load side of a transformer feeds the device, such as a light or motor. It is the output of the transformer. The input, or line side, provides the voltage that is to be transformed, either up or down, to supply the load side.AnswerA transformer's primary winding is connected to the supply voltage, and the secondary winding is connected to the load.
Can you step up or step down the DC voltage by a transformer?
You need alternating current for a transformer, for DC you would have to interrupt the power supply to make it effectively DC pulses.
What kind of transformer do i use to run LED?
A step-down transformer U really don't need a step up or stepdown transformer You need a source capable to run your LED it can be a swithcing power supply for istance a battery
