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The turns per volt (tpv) - or volts per turn for large Transformers - depends on the maximum flux in the magnetic core of the transformer.
The main equation for a transformer is V = N (d/dt) phi, in other words the voltage equals the turns times the rate of change of total flux. From that comes the design equation:
V = 2.pi.freq.N.phi where V and phi are rms values.
The total flux is limited by the maximum allowable flux density for the iron core material which is usually about 1 Wb/sq.metre. The total flux is equal to the flux density times the area of the flux path in the core. Thus larger cores must be used at higher voltages, to avoid having too many turns on the windings.
As an example a small transformer with a core of 20x20 mm can use a total flux of about 0.0004 Wb, and at 50 Hz the turns per volt are given by:
V/N = 2.pi.freq.phi = 6.283 x 50 x .0004 = 0.125 volts/turn or 8 turns per volt. A 120 v primary would need 1000 turns and a 12 v secondary 100 turns.
What else can I help you with?
A transformer has a primary volt of 240v and a secondary volt of 48v what is the turn ratio?
3
What are the principles of voltage reduction in auto transformer?
A: Transformers are designed with a turn ratio of 1:xxx the ratio can be 1.001 for instance then 1 volt input will transform into 1milli volt out that is the basics
What is the voltage when resistance is 1 ohm in transformer?
1 volt
What transformer do you need if you have primary voltage of 600 3 phase and require 240 volt 1 phase?
A single phase 600 to 240 Volt transformer using two phases of the three phase primary.
What is the full load loss of a 630 kilo volt ampere and primary voltage is 11000 VOLT and secondary voltage is 440 VOLT of a distribution transformer?
That type of transformer normally has about 99% efficiency so the full-load loss would be 1% or 6 kW.
Is it possible to give 1 volt AC input to transformer and get 230volts output?
Yes, if the turns ratio is 1:230. Note to do this, you will have 230Amps of current on the input for every amp on the output, so you should size your transformer windings accordingly.
How do i convert from 380 volts to 220 volts?
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.
How many wires are input in a berry-type transformer?
1 wire is input in this type of transformer.
Transformers are rated in what?
Transformers are rated in KVA. (this is because the transformer is Unity power factor device i.e.. PF = 1)AnswerThe selection of a transformer is determined by the apparent power of the load, expressed in volt amperes(V.A), the load current, and the line voltage of the supply. The transformer must be able to satisfy these requirements.Transformers are not 'unity power factor' devices, which is precisely why their capacity is expressed in volt amperes, rather than in watts.
Can 24v 40va be used for24v 1 amp?
Yes, a 24V 40VA transformer can be used for a device that requires 24V 1A. The VA rating (volt-ampere) is a measure of the overall capacity of the transformer to deliver power, so the 40VA transformer has the capacity to supply the 1A required by the device.
How many use silica breathers in transformer?
1
What is the secondary voltage of a transformer with the turn ratio of 5 to1 and primary volts of 200?
The secondary voltage of a transformer with a turns ratio of 5 to 1, and primary voltage of 200 is 40. (5 to 1)
