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Three Phase
We are indulged in providing specialized Three Phase transformers used to change values of three phase voltage and current and made up of three sets of primary and secondary windings. Our supremely experienced professionals use only the finest quality materials and follow all international specifications during making of these quality transformers. Our three phase transformers are available from 500 VA TO 200 KVA.
There are only 4 possible transformer combinations: - Delta to Delta - use: industrial applications
- Delta to Wye/star - use : most common; commercial and industrial
- Wye/star to Delta - use : high voltage transmissions
- Wye /star to star / Wye - use : rare, don't use causes harmonics and balancing problems
DELTA connection A delta system is a good short-distance distribution system. It is used for neighborhood and small commercial loads close to the supplying substation. Only one voltage is available between any two wires in a delta system. The delta system can be illustrated by a simple triangle. A wire from each point of the triangle would represent a three-phase, three-wire delta system. The voltage would be the same between any two wires
WYE/Star Connetion In a wye system the voltage between any two wires will always give the same amount of voltage on a three phase system. However, the voltage between any one of the phase conductors (X1, X2, X3) and the neutral (X0) will be less than the power conductors. For example, if the voltage between the power conductors of any two phases of a three wire system is 208v, then the voltage from any phase conductor to ground will be 120v. This is due to the square root of three phase power. In a wye system, the voltage between any two power conductors will always be 1.732 (which is the square root of 3) times the voltage between the neutral and any one of the power phase conductors. The phase-to-ground voltage can be found by dividing the phase-to-phase voltage by 1.732
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