Loading... Please wait...

Blog

Introduction to Alternator Parts and How To Prevent Counterfeit Parts

Posted

Buy certified parts, like these Stamford alternator parts, from General Power.

Alternators are important tools for generating electricity. Depending on how you use them, your alternators may be responsible for powering businesses and organizations that thousands of people depend on.

Not all alternator parts are equal. Some are downright fake. You can avoid getting duped by counterfeit alternator parts by learning the component parts of a typical alternator. Also, discover how manufacturers are working to prevent counterfeit parts to ensure you get genuine replacement parts.

What Are the Component Parts of a Typical Alternator?

An alternator converts mechanical energy into electrical current. The main parts of an alternator are the rotor (or armature) and the stator, which is a stationary part containing a set of coils that conducts electricity. When the rotor moves, it creates a constantly rotating electromagnetic field around the stator, producing electrical voltage.

Electrical generating systems can be either rotating, as described above, or static. A typical static electrical generating system, which uses a chemical reaction to produce electrical energy, is a solar-powered system. An example of a rotating electromechanical machine is a typical diesel- or gasoline-powered generator set. Rotating systems can be two types: alternating current (AC) or direct current (DC).

To generate electricity, whether AC or DC, three things are essential: a wire, a magnetic field and relative motion between the wire and magnetic field. Producing a magnetic field requires a minimum of two magnetized poles: one north pole and one south pole.

Alternator Parts

Here’s an overview of a typical alternator’s internal parts showing how a wire, a magnetic field and relative motion work together to produce electrical energy.

Rotor Assembly

Powering the alternator is the rotor assembly. At the heart of the rotor assembly is an iron core, around which wires called field windings are wound.

When the rotor spins, these wires create the magnetic, or excitation, field that induces the output current in the armature windings. The armature windings are sets of coils wrapped around the inner circumference of the stator.

Stator

The stator surrounds the rotor and is made up of wire coils around an iron housing. Finger poles, with alternating north and south charges, are placed around the core and the field windings, creating a magnetic field that induces voltage into the stator.

Input Shaft

The central axle of the rotor, called the input shaft, connects to the prime mover, such as the water turbine, engine, etc. That provides the rotational energy, which the alternator then converts into electrical energy.

Exciter

An exciter powers the magnetic field by either transferring excitation current or using magnetic induction to provide power to the field windings. The exciter uses a commutator to convert the resulting AC into DC.

Voltage Regulator

The voltage regulator, as its name states, regulates the voltage the alternator produces and adjusts the field excitation going to the exciter and rotor. This increases or decreases the magnetic field strength and corrects the voltage output to prevent overloading or charging problems.

Manufacturers invest money, research and technology into producing quality alternators that operate efficiently over the long term to stand up to the most rigorous conditions. After investing in a quality alternator, you’ll want to protect its integrity by buying only genuine replacement parts.

How to Prevent Counterfeit Parts

When it’s time for new alternator parts, be wary of counterfeits, which pose a real danger to user safety and to the reputation of legitimate manufacturers and wholesalers. Counterfeit parts aren’t manufactured under the stringent safety and testing codes followed by legitimate companies. Those parts have been found to have cracks in the fan casting, insufficient stator impregnation, dangerous foot arrangement, general mechanical failures and loose wiring.

Don’t let price take you in, either. You may find that counterfeit parts don’t cost as much as genuine components, but be extremely cautious. You may save money in the short-term, but the inferior quality of counterfeits could cost you more in damage and lost time in the long run.

Counterfeit parts are often labeled with another successful brand’s markings, making it difficult for the customer to detect an illegally produced product. One generator and alternator manufacturer, Cummins Generator Technologies, is among the many working to change that.

How Companies Employ Anti-Counterfeit Efforts

Within the last few years, Cummins has instituted a global anti-counterfeit strategy and has actively pursued counterfeiters in an attempt to interrupt the supply chain and raise awareness. Cummins has educated customers and end users to look for authentic branding and a security tag in the form of a CD hologram affixed to the product. Customers can also instantly validate their unit’s serial number through Cummins’ website.

If your alternator ever requires replacement parts, you can avoid counterfeits by buying from a reputable alternator seller or wholesalers. Do your research to locate genuine parts. Look for authentic branding that certifies the product was manufactured by a legitimate company. Double-check the part’s authenticity by registering it with the manufacturer.

Plus, with every genuine product you purchase, you’ll be helping to eradicate counterfeiters and strengthen manufacturing across industries.

General Power is committed to fighting counterfeit parts.

  • 100% of our products are purchased directly from the original manufacturers
  • 100% of our products are individually serialized and can be individually tracked back to the factory
  • 100% of our manufacturers will gladly certify the origin and authenticity of our products

Contact our team to order your genuine alternator parts from Cummins, Leroy Somer and other manufacturers today.

How to Pick an Alternator Based on Your Application Needs

You know you need an alternator to produce electricity. But the question is, how do you choose among the types of alternator products?At General Power, we have various types of generator alternator products depending on the alternator applications. These include single-bearing alternators, double-bearing alternators and marine alternators.Here's how to choose the right one based on [...]

Read More »

Automatic Transfer Switch vs. Interlock: Which is Best?

A standby or backup generator can be a lifesaver when the power goes out. As a storm rages, the generator starts up and restores lights, ventilation, computers, devices and other critical systems. But how will electricity transfer from utility power to backup power in the event of a blackout? Depending on your power needs and application [...]

Read More »

GENPOWERUSA: Industrial Generators Made in the U.S.A.

Inclement weather, natural disasters and aging power grids all contribute to a growing problem facing businesses around the world: power outages. According to data from research firm E Source, power outages cost businesses in eight key industries over $27 billion annually. Without the right backup power system, you could be one of them. You also should [...]

Read More »

Is Your Business Ready for Hurricane Season?

According to storm data from the National Oceanic and Atmospheric Administration, 175 named storms and 66 hurricanes have made landfall in the United States since 2010, causing billions of dollars in damage to both homes and businesses across the country. From flood waters to extremely high winds, natural disasters like these can cause power outages that [...]

Read More »

Rental-Grade vs. Industrial-Grade Generators for Mobile Applications

Whether you’re searching for a backup power solution for your home or business, it’s critical to select a generator that meets your specific power needs. This is especially true if your application requires a mobile generator, which can be moved to a variety of locations. Mobile generators come in a variety of sizes, power ratings, and [...]

Read More »

Introduction to EPA: Environmental Standards for Generators

The Environmental Protection Agency 1 or EPA is an agency that strives to protect human health and the environment through clean air, land and water initiatives. These initiatives include standards that govern generator emissions standards in the interest of conservation and to reduce risks associated with air pollution. What is an EPA-compliant generator? A generator is considered EPA-compliant [...]

Read More »

Diesel Generator vs. Gas Generator: Which is More Efficient?

table td {padding:10px;} If you're considering a commercial backup generator for your business, you'll have a lot of decisions to make. One of the first things to consider is the fuel source. One common question is, are diesel generators better than gas? The answer is, it depends on the needs of your business. To help make your [...]

Read More »

How to Calculate What Size Generator You Need

A commercial generator plays a critical role in your business continuity plan. By providing backup or emergency power to your building during a power outage, commercial standby generators enable critical facilities like elevators and security systems to continue operating. Standby generators also minimize business and data losses that arise from computer system failures.However, estimating what [...]

Read More »

Guide to Buying a Generator from General Power Limited: What to Expect

Buying a generator for commercial and industrial use can be a complex and time-consuming process. Getting help and guidance from a backup power expert can streamline this process, save time and ensure you are selecting the right generator for your unique power needs. Our power experts work with you throughout the generator purchase process. Here’s what [...]

Read More »


Powered by Top Rated Local®