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If you have a transformer with 140 turns on the primary side and 8 turns on the secondary With 120Vrms across the primary side what is the voltage across the secondary side?
Output from secondary is about 6.8V rms, on no load. On the primary side, you have 140 / 120 = .86 volts per turn. Therefore, on the secondary side you will have 8*.86 = 6.8 volts.
If you have a transformer with 140 turns on the primary side and 8 turns on the secondary. With 120Vrms across the primary side what is the voltage across the secondary side?
Output from secondary is about 6.8V rms, on no load. On the primary side, you have 140 / 120 = .86 volts per turn. Therefore, on the secondary side you will have 8*.86 = 6.8 volts.
What is the application of transformers having both primary and secondary voltage same?
When the primary and secondary voltages are the same the transformer is being used for isolation. The secondary side will have galvanic isolation from the primary side. The purpose of the is to protect secondary load if a fault occurs on the primary side. The impedance of the transformer will limit the fault current on the secondary which should save equipment.
Difference between input and output transformer?
The 'input' side of a transformer is called its 'primary' side, whereas the 'output' side is termed its 'secondary' side. The ratio of its secondary to primary voltage is equal to the ratio of the number of turns in the secondary windings to the number of turns in the primary winding. So if, for example, a transformer's secondary winding has twice as many turns as its primary winding, then the secondary winding will produce twice the voltage applied to the primary winding.
Why you uluminium on primary side of transformer?
This isn't the case. You can have aluminium or copper on primary or secondary side of a transformer.
Where to install air separator in primary circuit of variable primary and secondary chilled water air conditioning systems?
If you have a primary /secondary, the chilled water should be constant at the primary loop. The secondary can be variable. The air seperator is always connected at the return water side and is most likely very effective at the primary return. However is a must as well on the return side of the secondary.
Why is the wattmeter connected at the primary side of the transformer?
In general, you can install a wattmeter on the primary or the secondary side of a transformer (it depends what you are trying to measure). But if you are conducting an open- and short-circuit test (to find the transformer's losses), then the wattmeter is connected to the primary side because you want to measure the total (primary + secondary) losses and that is only achievable from the primary side.
Can you inject current from secondary side of CT?
IF answer is yes . please explain how we can measure in primary side ??
Where Tap changer placed in transformers primary side or secondary side?
It's installed on the high-voltage side.
If a dc voltage of 12v is added to the secondary of step down transformer and rating of transformer is 220 input and 12v output what will be the result from primary of transformer?
Adding a DC voltage to the secondary of a transformer will not have an effect on the primary side, as transformers work on the principle of electromagnetic induction which is based on alternating current. The primary side of the transformer will still operate based on the input AC voltage of 220V. The DC voltage on the secondary side will not be transferred to the primary side.
Is possible to put 3 phase transformer primary as secondary and secondary as primary?
A: The only way can be possible if the transformer is an isolation type. Yes, you can put the input into the secondary side. This will create a step-up transformer.
How do you know the primary or secondary side of a transformer?
The primary side is usually labelled 'H', the secondary is often labelled 'L'.Primary wiring will often be smaller, since the current carrying capacity doesn't have to be as high on the primary side.The best thing to do would be to check with the manufacturer. They should have documentation stating what is primary and secondary.CommentThe above answer only applies to step-down transformers. The simple answer is that the primary winding is the winding connected to the supply, whereas the secondarywinding is the winding connected to the load. These terms have nothing to do with voltage levels.
