What are types of 3 phase induction motors winding Connections
Different Connection of the motor winding:
There are several ways of connecting a three phase motor winding . The most common ones 3-phase connection are:
1) delta(∆)-connection
2) star (Y)-connection.
3-phase connection of induction motor winding
According to the IEC 60034-8 standard, the windings of a 3-phase standard motor can be connected in either a star (Y)-connection or in a delta (∆)-connection.
Star (Y)-connection:
By short-circuiting the terminals W2, U2 and V2 and connecting the mains to W1, U1 and V1, you get a star (Y)-connection.
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| Fig:star connected 3 phase motor winding connection diagram |
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| fig:Fig: current in star connected motor winding |
Delta (∆)-connection:
When you connect the end of a phase to the start of another phase you get a delta (∆)-connection
i.e W2-U1, U2-V1, V2-W1 as shown in figure by connecting main supply to U1 V1 W1
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| Fig: delta connected 3 phase motor winding connection diagram |
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| Fig:delta connected motor winding current |
read also..
- What is VFD ( veriable frequency drive) and how it works?
- Why single-phase induction motor is not self-starting and how can make it self starting
- How three phase induction motor works?
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