To easily and efficiently change from one voltage to another in AC systems.
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
If these are the exact voltages that you need you will need an auto transformer to obtain these voltages. If these voltages are nominal voltages and are of a three phase four wire configuration, the 220 voltage can be obtained from the three phase legs to the neutral (ground) connection. The equation to use is 400/1.73 = 231 volts.
No. Only Transformer could not be used for DC supply.If yoy need to have DC out put,then rectifier unit required .
why need dielectric test for transformer
Frgi transformer
yes we can place auto transformer in place of original transformer
To test a transformer on a furnace, you can use a multimeter to check the voltage output. First, turn off the power to the furnace. Then, locate the transformer and measure the voltage across the primary and secondary terminals. If the voltage matches the specifications provided by the manufacturer, the transformer is functioning properly. If not, the transformer may need to be replaced.
Ideal transformer is useful in understanding the practical transformer..i does't have losses...
why should we use pulse transformer rather than ordinary transformer
A transformer is not 'necessary'. The human race evolved, and developed cultures, societies, disease resistance, and technology, without ever seeing a transformer. But there are specific situations in which desirable things can be accomplished much more effectively and efficiently with a transformer than with any other device or method. Here are a couple of examples: -- If the voltage you have available is not the voltage you need, then you can use a transformer to make the change. (But that only works for AC.) -- You can use a transformer to change the output impedance of an amplifier to the impedance of the speaker or earbuds you want to use with it.
You need to buy a transformer to convert the voltage to 110V.
You will need to use a step down transformer. If an amperage or wattage of the crock pot had been stated, the transformer could have been sized as to what you need. Because the crock pot is a resistive only device the difference in HZ is negligible.