0
What else can I help you with?
How you differentiate between single phase and three phase transformer?
A single-phase transformer works with a single-phase supply, while a 3-phase transformer is used with a 3-phase supply. A single-phase transformer has 2 wires on the primary and secondary (ignoring taps) while a 3-phase tansformer has 3 or 4 wires on the primary and secondary.
How many amp in 480 vac 3- phase primary transformer if the secondary it's 120 vac?
This 480-v three-phase transformer probably has a 208-v three-phase secondary which has 120 v from each line to neutral. In that case the primary current is 0.433 times as much as the secondary current, so 100 amps in the secondary means 43.3 amps in the primary.
Transformer 208 volt primary and 480 volt secondary three phase 75 kva what size fuses on primar and secondary?
200 and 100
What is the relationship of primary windings of a transformer to the secondary windings regarding output and input voltage?
The phase relationship between the primary voltage and the secondary voltage of a transformer is 180 degrees (typically) on single phase transformers. If working with three phase transformers, a zero phase shift is often used in Y/Y grounded transformers. If the transformer is wired Delta / Wye, the phase shift will be 30 degrees. I've seen transformers with a phase shift of 150 as well (quite abnormal, but it exists!) due to the starring and a delta / wye configuration. If you are looking at a transformer phasor diagram, this will show the phase shift between primary or secondary (three phase transformers). For single phase, there should be a drawing showing polarity markings - what goes in the polarity marking on the primary comes out on the secondary polarity marking.
How many amps will a 10 kva transformer handle?
It depends on how many amps it was designed for. A 12.5kV/600v 10kVA 3 phase transformer can handle ~.5 amps on the primary and ~10A on the secondary. A 600/120V 10kVA 3 phase transformer can handle ~10A on the primary and ~50 on the secondary.
What is the voltage phase shift between primary and secondary line voltages in star-delta transformer connection?
The voltage phase shift between primary and secondary connections in a transformer is 180 electrical degrees.
How you differentiate between single phase and three phase transformer?
A single-phase transformer works with a single-phase supply, while a 3-phase transformer is used with a 3-phase supply. A single-phase transformer has 2 wires on the primary and secondary (ignoring taps) while a 3-phase tansformer has 3 or 4 wires on the primary and secondary.
What is the three phase transformer?
it has three primary windings & three secondary windings.
Why phase displacement is maintained between primary and secondary windings of the transformer?
Maintaining a phase displacement between the primary and secondary windings of a transformer allows for the effective transfer of power from the primary to the secondary circuit. This phase difference ensures that the magnetic flux induced in the primary winding can generate a voltage in the secondary winding, enabling power to be transmitted efficiently and accurately between the two circuits.
How many amp in 480 vac 3- phase primary transformer if the secondary it's 120 vac?
This 480-v three-phase transformer probably has a 208-v three-phase secondary which has 120 v from each line to neutral. In that case the primary current is 0.433 times as much as the secondary current, so 100 amps in the secondary means 43.3 amps in the primary.
Does the formula used to calculate the turns ratio uses the phase voltages and phase current?
No, the turns ratio formula calculates the ratio of the primary to secondary winding turns on a transformer using the number of turns on each winding. Phase voltages and currents are not directly used in this calculation.
Is 3 phase star transformer has more winding than delta?
The # of windings in a transformer are based on the primary and secondary voltages the transformer is rated for not the way the windings are connected.
What is the mutual coupling in single phase transformer?
primary winding flux links with secondary winding produses voltage across the secondary winding
Transformer 208 volt primary and 480 volt secondary three phase 75 kva what size fuses on primar and secondary?
200 and 100
What are possible uses of a single phase 30VA transformer?
To continuously supply a load of up to 30-V.A at the rated secondary voltage of the transformer.
What is the relationship of primary windings of a transformer to the secondary windings regarding output and input voltage?
The phase relationship between the primary voltage and the secondary voltage of a transformer is 180 degrees (typically) on single phase transformers. If working with three phase transformers, a zero phase shift is often used in Y/Y grounded transformers. If the transformer is wired Delta / Wye, the phase shift will be 30 degrees. I've seen transformers with a phase shift of 150 as well (quite abnormal, but it exists!) due to the starring and a delta / wye configuration. If you are looking at a transformer phasor diagram, this will show the phase shift between primary or secondary (three phase transformers). For single phase, there should be a drawing showing polarity markings - what goes in the polarity marking on the primary comes out on the secondary polarity marking.
How many amps will a 10 kva transformer handle?
It depends on how many amps it was designed for. A 12.5kV/600v 10kVA 3 phase transformer can handle ~.5 amps on the primary and ~10A on the secondary. A 600/120V 10kVA 3 phase transformer can handle ~10A on the primary and ~50 on the secondary.
