Page 431 - Basic Electrical Engineering
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Figure 4.5 The three-phase windings are connected to the load independently through six wires
The phase voltages should supply power to electrical loads for which the
two end terminals of each phase are to be connected to loads as shown in Fig.
4.5 Six wires are required to be taken out from the generator to the load.
Instead of taking out six wires from the generator and connecting them to the
loads separately as shown in Fig. 4.5, the three-phase windings are connected
either in star or in delta so that only three wires are to be taken out from the
generator to the load. The loads are also connected either in star or in delta. In
the case of the star connection a fourth wire may be taken out from the
neutral point.
4.4 TERMS USED IN THREE-PHASE SYSTEMS AND CIRCUITS
These are some of the terms used while describing a three-phase system.
These are as follows:
i. Balanced supply: a set of three sinusoidal voltages (or currents) that are equal in magnitude
