You'll need a clean, stable primary side voltage source. You'll measure and monitor it throughout the test. You will need to measure primary current, too. You'll need a stable secondary resistance of known value, and you'll have to monitor voltage across it throughout the test. If you want to measure current, you can use an "unknown" resistance - as long as it is stable. You have a choice, and you can make your calculations based on either one. Your equipment will have to be "accurate" at least to the degree of accuracy you wish in your results. Hook up your resistance to the secondary, hook your equipment up to the various places you'll need it to make your measurements, plug in the primary and flip the switch. Observe and record. Your data will allow you to make calculations. Primary voltage times primary current equals primary power (power into the primary). Secondary voltage times secondary current will equal secondary power (power out of the secondary). There wil be a bit more power "put into" the primary than is "taken out of" the secondary because of losses within the transformer. (These will be resistive losses in the wire as well as inductive losses in the core - eddy currents.) And that is what efficiency speaks to. Transformer efficiency can be calculated using the following formula: Efficiencytransformer in % = 100 x (Powersecondary / Powerprimary) If you opt to use secondary voltage and the resistance of the resistive load to make your calculations for the secondary side power, it will be found by using this formula: Powersecondary = (Voltagesecondary)2 / Resistanceload Either path should lead to the same destination. And just so you know, if you use secondary current and the resistance of the load to make the calculation, that is done using this formula: Powersecondary = (Currentsecondary)2 x Resistanceload All roads lead to Rome.
A stereo or tv set needs a step-up transformer because a step-up transformer increases the voltage of an appliance and a stereo or and a tv set needs a high voltage.-------Semper Fidelis(ADC)----------
The same transformer can be both. It must be operated at the correct voltage on both windings.
the difference between a step up transformer and a step down transformer is that, in a tsep up transformer, the voltage secondary is greater than the primary side but in a step down transformer, the voltage secondary is lesser than the primary side
The efficiency of a pulley system depends on how it is set up. Be specific.
A transformer is fundamentally a set of coils; therefore, a transformer is an inductive load. However, by "transformer load", you seem to mean "the load that is connected to a transformer". Whether that load is inductive or capacitive depends mostly on what is hooked up to the transformer.
It depends on the load. A good transformer has over 90% (some as high as 99%) efficiency. So the power drawn by it is a function of the power in the load, plus a small amount due to losses in the transformer.
Set down transformer are also referred to step down transformers. They are used in regulating the electrical voltage before it can be used to feed a house. While step up transformer are mainly found in the generation stations to improve the voltage generated by the turbine. Thanks.
The transformer will have to be taken out of service, and topped up. Usually, this would also be a good opportunity to test the oil for contaminants.
Resistance ideal transformer is the one having no core losses, infinite permeability no mmf needed to set up flux), windings are having no resistances or reactances.
Winding copper losses of a transformer can be measured in a short circuit test of a transformer. Impedance voltage is given to the primary and the secondary is often shortcircuited. (some times the reverse is done of this). Full load currents are made to flow in both primary and secondary circuits. This current flow heats up the 2 windings of the transformer. Power consumed at this time gives the transformer copper losses.
A test done on a transformer. The voltage at the power frequency is ramped up to verify the transformer is capable of handling the stresses due to switching and natural phenomena (lighting strikes).Withstand Voltage:The voltage which has to be applied to a test object under specified conditions in a "withstand test" is called the "withstand voltage".
Transformer function is either to step-up or down the voltage. There is nothing like an ordinary transformer.