Three-Phase Alternators

High Quality Three Phase Alternators

At General Power, we supply dependable three phase alternators that support large-scale three phase power generation for commercial, industrial, and international use. Whether you need a replacement three phase AC generator or a new unit for a prime or standby system, we provide trusted solutions engineered for consistent electric power.

What is a Three Phase Alternator?

A three phase alternator is an AC machine that converts mechanical energy into electricity using the principle of electromagnetic induction. It works by rotating a magnetic rotor inside a stationary stator, which generates alternating current across three sets of windings. These windings are spaced 120 electrical degrees apart to produce a balanced output.

This arrangement includes three phase conductors and often a neutral line, forming a three phase system. It’s different from single phase alternators which have only one winding and can be less efficient for powering high power loads over long distances. The phasor diagram of a 3 phase alternator shows how the output from each phase overlaps to provide continuous power with minimal fluctuation.

What is The Advantage of a Three Phase Alternator over Single Phase?

When you compare a three phase alternator work output to single phase, the difference is clear in both performance and efficiency. A three phase unit delivers constant voltage and current, making it better suited for industrial applications and environments with high power loads. It can handle more load per phase and offers greater efficiency than single phase systems.

Since the alternating current is generated in overlapping cycles, the output is more stable. This reduces wear on equipment, simplifies operation, and supports smooth rotation of motors. The design also allows for more compact and efficient units compared to single phase models, making three phase AC generators the top choice for data centers, hospitals, and remote installations.

Leroy Somer Three Phase Alternators

Leroy Somer alternators are engineered for quality, stability, and robust service. Each alternator is built to perform in tough industry environments where three phase power is essential. With advanced cooling and precise voltage regulation, these units provide clean, reliable electric power that’s well-suited for heavy load conditions.

They support a wide range of applications, from marine and mobile to stationary systems. Every generator in this series is tested for speed, frequency, and durability to ensure uninterrupted operation, even in extreme environments.

Marathon Three Phase Alternators

Marathon’s three phase AC generators bring long-lasting reliability and smart design to global electricity projects. Designed to work with a variety of prime mover types, they are often connected to turbine or diesel engine systems. With excellent heat resistance and protection against overload, they are capable of running at optimal rotation under full load.

Mecc Alte Three Phase Alternators

Known for their innovation and worldwide reach, Mecc Alte builds phase alternators that are designed for high efficiency, flexibility, and minimal maintenance. These three phase units offer customizable configuration for standby or continuous duty, helping to maintain dependable power across demanding installations.

Each Mecc Alte alternator features well-balanced windings and lightweight materials for easy handling and integration. Their compact size and efficient cooling make them suitable for applications where space and performance both matter.

Stamford Three Phase Alternators

Stamford's three phase line delivers consistent voltage and solid motor performance for customers who need long-term dependability. These alternators are widely used in commercial power systems, particularly where electronics and sensitive equipment require stable output.

With their advanced coil design and superior magnetic field control, Stamford alternators perform reliably across variable load ranges. Their products are compatible with most generator systems, making them a go-to choice for OEMs and retrofit projects worldwide.

Get Expert Support From Our Expert Team At General Power

With over 20 years of experience, we’re proud to support more than 10,000 customers around the world with expert service, bilingual support, and fast global delivery from our Miami headquarters. We stock different types of three phase generator units from leading brands with KW ranges suitable for diverse applications. Our team of EGSA-certified engineers is ready to help you choose the right configuration for your system, just reach out and contact us.