800-453-3018
|||

Blog Lockwood's Electric Motor Service, INC.

Blog

Magnetic Encoder : Working, Interfacing, Advantages, Disadvantages & Its Applications

Encoder is an electromechanical device used to give feedback to control systems regarding the object’s motion. So this feedback simply allows the control system to set up whether the object being checked is being properly positioned or moved or not and proper actions to be...

Read More

Permanent Magnet Synchronous Motor

A permanent magnet synchronous motor (PMSM) - is a synchronous electric motor whose inductor consists of permanent magnets. The main difference between a permanent magnet synchronous motor (PMSM) and an induction motor is in the rotor. Studies show that the PMSM has...

Read More

Alternator Rewinding

An alternator is used to produce electrical current or power. Inside the alternator’s casing is the stator, a ring that is wound with copper wire. As the drive belt turns the alternator pulley, the rotor — a magnet that rotates within the stator — is rotated. This rotating magnetic field...

Read More

Motor Balancing Equipment

Explore the importance of motor balancing equipment, its role in detecting and correcting imbalances, types of balancing, and recent advancements. Understanding Motor Balancing Equipment: The importance of motor balancing equipment in industrial applications...

Read More

Does High Voltage Testing Damage A Motor?

Maintenance professionals tasked with maintaining electric motor reliability are often concerned with testing their critical motors at voltages well above nameplate levels. It can certainly feel counterintuitive to test a 460V motor to 2,000V or a 4,160V motor to 9,320V. After all, the motor...

Read More

Wound-rotor Synchronous Motor

Wound-rotor synchronous motor is a synchronous electric motor, the rotor of which is made with a field winding. Construction of wound-rotor synchronous motor - Wound-rotor synchronous motor like any rotating electric motor, consists of a rotor and a stator. The stator is the fixed...

Read More

Bad Blower Motor Symptoms in HVAC Units

Most residential homes rely on an HVAC, whether it is for the furnace in the winter or the air conditioner in the hotter summer months. Of course, we always want to find any issues with this in the opposite season, but it doesn’t ever seem to work that way does it? An HVAC system...

Read More

Common Cooling Tower Troubleshooting Issues

Cooling Towers Have Been Used In Industry since the early 19th century. It is basically a heat rejection device or heat exchanger in which water and air are brought into contact with the purpose of lowering the temperature of the water. It’s not surprising that cooling tower technology...

Read More

What is an Armature Winding, and Its Types

Generally, an armature winding is like a conductor, and it covers with a single cotton cover, double cotton cover, otherwise cotton fiberglass and enamel. Usually, the rolls of the armature winding will bound mutually with the cotton tape. Thus the coils will be dipped in soaked...

Read More

Synchronous Machines (generator and motor) in a Nutshell

In a synchronous generator, a DC current is applied to the rotor winding, which produces a rotor magnetic field. The rotor of the generator is then turned by a prime mover, producing a rotating magnetic field within the machine. This rotating magnetic field induces a three-phase set of...

Read More

Identifying Motor Defects through Fault Zone Analysis

Electrical maintenance personnel have for years been limited to troubleshooting with no more than a fluke and a Megger. This unfortunately does not provide enough information to allow most electricians to feel totally confident in determining if an electrical problem exists or not...

Read More

What Is An Explosion Proof Electric Motor?

Preventive safety requires careful selection of equipment, particularly electric motors, in dangerous oil and gas recovery, chemical and petroleum refinery and mining environments. Motors can create an explosion by one of two means: A motor surface gets so hot during operation...

Read More

What is a Wound Rotor Motor and How Does it Work?

Electric motors - machines that transform electricity into mechanical energy - are ubiquitous in the engineering world. They are the cornerstone of engineering feats such as elevators, pumps, and even electric vehicles, thanks to the ability to leverage the electromagnetic induction...

Read More

6 Key Differences of Vertical & Horizontal Motors

The industry needs motors—lots of them—in all sizes and with wide-ranging features and capabilities. Depending on the application, these motors might be installed indoors or out, some in clean rooms and others in harsh industrial environments. Their power can range from less than...

Read More

Vibration Analysis: An Explainer on Processes, Equipment, and Benefits

There are various non-destructive testing (NDT) methods we can employ to evaluate the condition of different machine components, without the need to stop and disassemble the equipment. Vibration analysis is a prominent NDT tool used across many industries. In this article, we...

Read More

What is a DC MOTOR : Basics, Types & Its Working

Almost every mechanical development that we see around us is accomplished by an electric motor. Electric machines are a method of converting energy. Motors take electrical energy and produce mechanical energy. Electric motors are utilized to power hundreds of devices we use...

Read More

6 Signs That Your Electric Motor Needs Replacement

You use electric motors for many of your appliances, and you see electric motors at work around you. After a few years of using your appliances and machines, however, you need to know how to be able to tell if you need to replace the electric motor of your appliance. Here are the signs...

Read More

5 Common Causes of Electric Motor Issues

According to the US Department of Energy, motor-driven equipment accounts for 64% of the electric consumption in the commercial and industrial sectors. This is understandable as most commercial and industrial operations are using a variety of motor-driven equipment, from conveyors...

Read More

How To Check If An Electric Motor Is Going Bad

For centuries, we’ve seen tremendous innovation in industrial operations. Our ancestors worked diligently to find solutions to the sluggish processes they experienced, which ultimately led us to the development of motors and automation. Today, countless companies rely...

Read More

Importance of High Voltage Equipment Maintenance and Repairing

There are certain considerations that you should keep in mind when you are operating a business. However, it is better to take more precautions when you are dealing with high voltage equipment. For ensuring that your business is running properly along with reducing...

Read More

What is Dynamic Balancing?

Dynamic balancing is the practice of spinning an object at a high rate of speed and adjusting the balance or removing the vibration by subtracting or adding weight. This is the most common method of balancing a drive shaft, an engine crankshaft or an automobile tire...

Read More

An overview of Electric Machines

Electricity does not exist naturally in any useful form. It has to be generated from any other sources of energy such as solar, wind, hydro, thermal, atom, etc. Photovoltaic cells help us trap energy from the sunlight and generators are used to convert mechanical power...

Read More

7 Reasons Why Machines Need Laser Shaft Alignment Technology

Every asset-intensive organization understands that the greater the uptime of machines, the more efficient and cost effective operations will be. Keeping your assets in optimal working order is easier and more cost efficient when advanced technology such as laser shaft alignment...

Read More

Motor Repair Best Practices Part 1 – Motor Rotor Balancing

Motor rotor balancing can be a confusing topic leading to sometimes heated conversation, especially in motor shops where cultures have evolved so differently over the years. All rotors must be balanced, whether new from the factory OEM or recently repaired...

Read More

The Importance of Motor Shaft Alignment

Proper motor shaft alignment increases the operating life span of rotating machinery. To achieve this goal, components that are the most likely to fail must be made to operate within their acceptable design limits. The Advanced Manufacturing Office of the U.S. Department of...

Read More

5 Most Common Causes Of Bearing Failures In Electric Motors And What To Do About Them

The following five factors can produce its own particular type of damage and leave its own special imprint on the bearing. Consequently, by examining a damaged bearing it is possible to determine the root cause of the damage so that the requisite actions can be...

Read More

Why High Voltage Test is important for Motors or any Electrical Equipment?

A high voltage is used to verify that the clearances and solid insulation of components have adequate dielectric strength to resist expected overvoltage conditions. It also shows that the equipment is able to work safely over its complete lifetime. The objective sought during...

Read More

The Importance of Motor Shaft Alignment

Proper motor shaft alignment increases the operating life span of rotating machinery. To achieve this goal, components that are the most likely to fail must be made to operate within their acceptable design limits...

Read More

Guidelines to a Good Motor Repair

Good motor repairs should maintain the efficiency level of the motor before its failure and last for a significant amount of time when placed back into operation. While this may seem obvious to many, the steps required in the repair process and the information needed...

Read More

DC Motors versus AC Motors: What You Need to Know

In 1834, Thomas Davenport developed the first electric motor powerful enough to perform an actual task. However, there were earlier iterations developed by Michael Faraday and Joseph Henry, but their devices were not powerful enough to perform a task...

Read More

Eight Common Benefits of Dynamic Balancing

The ultimate goal in any piece of equipment is to have it operating free of any vibration while running smoothly for a long time. In reality, however, vibration is always going to be a part of any rotating machinery, and certain levels of vibration may even be acceptable...

Read More

5 Reasons Your Electric Motors Keep Overheating

An overheated electric motor will bring your equipment to a screeching halt. And while excessive heat may be the problem confronting you, knowing how and why your motor overheated is imperative. Until you get to the root of the problem, your motor will continue...

Read More

Electric Motor Testing & Troubleshooting

The use of electrical motors in vehicles is very common and useful. These small wonders are capable of converting electrical energy into mechanical energy to power windshield wipers, windows, antennas, seats and rear view mirrors...

Read More

Tips for Maintaining an Electric Motor

Electric motors are one of the greatest innovations in history, and although motors may seem to be a modern invention, they’re not. William Sturgeon invented the first DC motor in 1832. You’d think most people who use electric motors would know how to maintain their motor...

Read More

Tips for storage electric motor

Some people do not concern about the correct method to storage the electric motor. This matter look like simple and easy but if we not take serious action, it can cause serious damage and involve high cost for repairing when electric motor defect due to not proper...

Read More

Five tips for better electric motor maintenance

It is essential to perform preventive maintenance (PM) checks on electric motors as a part of managing facility assets because they have a massive impact on a business' productivity and profit. Consider the five tips highlighted below...

Read More

Slotless versus slotted brushless DC motors

Brushless DC motors are the technology of choice for applications operating at higher speeds. However, two different motor architectures can present a selection conundrum. The last decade has seen a growing acceptance of brushless DC motors as an alternative to brushed...

Read More

Signs You Need to Repair Your Electric Motor

Electric motors are essentially the heartbeat behind many industrial companies. Whether you work in construction, manufacturing, or automotive, you’re going to work with electric motors frequently. Your daily operations are grounded in efficiency...

Read More

What are Electromechanical Devices?

Almost any single device with an electrical and mechanical component can be referred to as electromechanical (EM). You might even call an electric motor an electromechanical device, because it turns electricity into rotary (mechanical) motion...

Read More

Why motor monitoring matters so much

Predictive maintenance has become a worldwide accepted practice and is being implemented and finely tuned by nearly every industry category. Locating, defining, and acting on potential problems before they become catastrophic is the main objective of a predictive maintenance program...

Read More

DC motors: Why are they still used?

DC motors were first developed in the early 19th century and continue to be used today. Ányos Jedlik is credited as being the first to experiment with DC motors in 1827. William Sturgeon (1832) and Thomas Davenport (1837) are credited with taking Jedlik's laboratory instrument and trying to commercialize it...

Read More

Assure machine reliability on rotating equipment

Machinery repairs can measurably improve machine uptime, if critical control points are observed to ensure proper shaft and housing repairs for machines with rolling element bearings. Starting with a typical industrial machine, the electric motor, the repair process will be examined, focusing on shaft and housing conformance.

Read More

Electric motors: Repair or replace?

Assess impact on production, reliability, suitability and cost. There are many software tools, spreadsheets and other freely available tools that one can use to make a sound judgment about the repair/replace decision for electric motors.

Read More