A polyphase system is generated by having two or more generator windings separated by equal electrical angles. Let's break down this concept in detail:

Polyphase System:
A polyphase system is an electrical power system that utilizes multiple phases or waveforms to transmit and distribute power. It is commonly used in electrical power generation, transmission, and distribution systems. The most common polyphase systems are three-phase and two-phase systems.

Generator Windings:
Generator windings are the coils of wire that are wound around the stator of a generator. These windings produce the electromotive force (EMF) that generates electrical power when the rotor spins within the stator. The windings are connected to the output terminals of the generator.

Equal Electrical Angles:
In a polyphase system, the generator windings are separated by equal electrical angles. This means that the phase windings are evenly spaced apart around the stator. For example, in a three-phase system, the windings are usually spaced 120 degrees apart. This ensures that the generated voltages and currents are balanced and evenly distributed.

Explanation:
Having two or more generator windings separated by equal electrical angles is the fundamental requirement for generating a polyphase system. This arrangement allows for the generation of multiple phases or waveforms that are shifted in time, resulting in a more efficient and balanced distribution of electrical power.

By utilizing multiple phases, a polyphase system offers several advantages over a single-phase system, including:

1. Higher Power Capacity: Polyphase systems can deliver more power compared to single-phase systems for the same size of equipment. This is because the power is distributed across multiple phases, reducing the current required in each phase.

2. Improved Efficiency: Polyphase systems provide a more balanced distribution of power, reducing losses and improving overall system efficiency.

3. Better Motor Performance: Polyphase systems are commonly used to power induction motors, which are more efficient and reliable compared to single-phase motors. The multiple phases create a rotating magnetic field that drives the motor's rotor, resulting in smooth and efficient operation.

In conclusion, a polyphase system is generated by having two or more generator windings separated by equal electrical angles. This arrangement allows for the efficient distribution of electrical power and provides several advantages over single-phase systems.