Final answer:
The coils in a delta-connected motor are connected in parallel, forming a triangle without a common point. This configuration commonly involves three coils, one for each phase of electricity, and significantly affects the motor's performance and its application.
Step-by-step explanation:
The question appears to be asking about the characteristics of the windings in a delta-connected motor, which is a type of three-phase electric motor. The correct answer is that the coils are connected in parallel. In a delta connection, each coil is connected to two other coils in a triangular or delta shape.
Each corner of the delta is then connected to a phase of the power supply. This configuration does not include a common point like with a star- or Y-connection, nor are the coils connected in series or composed of four coils.
Key Characteristics of a Delta-Connected Motor:
- The coils are connected in a closed loop forming a triangle, thereby being connected in parallel to each other.
- There is no common point as in a star-connected motor.
- It does not have four coils; instead, it typically has three coils, one for each phase of electricity.
Understanding the connection type and the arrangement of coils is critical because it affects the performance and suitability of an electric motor for specific applications. The arrangement influences factors such as starting torque and voltage balance across the windings.