• What Role do Laminations Play in Electric Motors and Generators?

    Two main components make up a DC motor such as the stator and the rotor. An iron core in a ring shape comprises the rotor along with slots that support the windings and coils. Once the core rotates in a magnetic field, this generates a voltage in the coils that results in eddy current. In simpler terms, eddy currents are a type of magnetic loss. When losing power due to eddy current flow, this condition is called eddy current loss. Multiple factors impact the amount of power loss attributed to the flow of eddy current These include the magnetic material's thickness, the frequency of the
    25 Apr
  • Keeping us Safe One Sheet at a Time: MSDS

    A Material Safety Data Sheet is a vital element for anyone that works with a potentially dangerous material. It keeps the area safe, and when included with the right training, helps provide a safer and more eco-friendly work environment. What is a Material Safety Data Sheet? A Material Safety Data Sheet (MSDS) is a document that explains details about possible occupational hazards that might hinder the well-being and safety of workers. The documentation is not designed for consumers, but instead those who work around or with a particular substance that could be possibly dangerous.
    20 Apr
  • Difference Between the Types of Explosion-Proof Motors

      It is important to choose the right type of motor to use on a site where there are explosive vapors or gasses nearby. In such locations where there is ignitable dust, be careful to select special motors to prevent hazards once an internal fault occurs during operations. In this article, we look into explosion-proof motors along with the differences between each. Basics on Explosion-Proof Motors The term explosion-proof refers to motors that approved for use in Class 1 locations. These sites have with potential explosive or ignitable vapors and gasses present throughout the p
    18 Apr
  • Ultrasonic Signature Provide Early Warning of Mechanical Failure

    Ensure the proper condition of your equipment by conducting tests and checks providing accurate results. Ultrasonic signature is one these practical tests. Ultrasonic signature detects crucial issues, including insufficient lubrication or early problems with bearings. What Causes Ultrasound? Various factors result in ultrasound, including electrical discharge, impact, and friction. Whenever there is excessive friction in individual components, for instance, the equipment is likely to lose balance. Over time, the equipment may stop performing in an efficient manner. Or the equipment may
    13 Apr
  • PdMA Tip of the Week: Drive Input Imbalances

    Current imbalances are sometimes referred to as a burglar alarm; problematic and need further diagnosis. However, imbalance at the inverter input under lightly loaded conditions is a normal phenomenon of the electrical circuit. The source of this current imbalance is often the connection of the power supply to the VFD, not to the motor itself. More specifically, the issue is the VFD’s full-bridge rectifier combined with subtle line voltage imbalances to the VFD. The VFD rectifier will draw from the input as necessary to supply the DC bus, which provides power through transistors to the motor
    12 Apr
  • Uncover Hidden Savings and Opportunities in Belt-Driven Machines

    Aside from ensuring a higher productivity rate in your business, one of your ultimate goals is to cut down your expenses without compromising the quality of your operations. This is why it's worth looking into the potential savings you get when you keep belt-driven machines in check. With aligned belts, you prevent unnecessary costs by frequent purchases of replacement parts. At the same time, you improve energy efficiency. Belt Drive Issues While it is true that belts are flexible, this flexibility does not mean that it is no longer necessary to ignore pulley alignment. For instance, o
    11 Apr
  • Why do DC Motors Perform Well in the Industrial World?

    DC motors are still useful in industry. These motors remain among the finest options for a broad range of applications. DC motor designs, such as permanent magnets, compound wound, shunt, and brushless are just some of the kinds of used today. The main concept behind these designs is quite the same. In basic terms, this involves placing a current carrier conductor in a magnetic field. Once these conductors receive power, the motor starts rotating. Generating electromagnetic fields may either be in the stator or the rotor. These basic designs are how DC motor designs differ from each
    06 Apr
  • What is the Leading Cause of Motor Death?

    Electric motors run a higher risk of failure and deterioration when exposed to excessive heat. Knowing heat is a motor killer is why it's best to understand the highest temperature that a typical electric motor can withstand. It is also important to learn potential causes of overheating in electric motors. Let's look into these two important issues as discussed below. How Hot is Too Hot? When it comes to motor application and design, it helps to take into account the operating environment of the electric motor. Besides the environment, the combination of excessive heat and faulty in
    04 Apr
  • Maximize the Operating Life of an Industrial Motor

    The electric motors at your place of business are likely one of your largest liabilities. These motors may even make up the bulk of your energy usage. This energy usage represents a significant percentage of your operating costs. By extending the operating life of a motor is one of the best ways to reduce costs and the possibility of unexpected downtime. Calculating the Lifecycle Cost One of the first steps in this process and one often overlooked is calculating the lifecycle cost (LCC) of the electric motor. Figuring the LCC is a simple matter. It is just a matter of calculating the ope
    30 Mar
  • PdMA Tip of the Week: Leading and Lagging Indicators

    Leading indicators are those that occur early in the P-F curve while lagging indicators occur later in the failure cycle. Both are key indicators, but it is important to know which one you are dealing with to diagnose the severity of the situation better. Phase resistance, like infrared thermography, is a leading indicator of power circuit anomalies. Performed at proper intervals, you would expect the resistance imbalance to identify early stages of a power circuit high resistance connection. At early stages, the effect of a high resistance connection on the motor is minimal and only locali
    29 Mar
  • Preventative, Predictive and Breakdown Maintenance

    An established maintenance program helps save money, energy and time. That said, there are many different maintenance program options to choose. The most common of those programs are preventive, predictive, and breakdown. What is the difference between these maintenance programs? How can you decide the one that is right for you? Predictive Maintenance Often, you have enough data at your disposal to establish a predictive maintenance (PdM) program. PdM is not a type of program that determines if something has gone wrong. Rather, it prevents something from going wrong. A PdM program looks
    28 Mar
  • 3 Troubleshooting Tips When Your Electric Motors Fail

    More than likely, you use many different pieces of equipment. More than likely, electrical motors are among some of the most common. In fact, with sales of 1 million motors and repairs of over 3 million dollars each year, motors play a significant factor in manufacturing. On average, electric motors account for 70% of electrical consumption at manufacturing facilities. Keeping it simple, if you are not caring for your motors, you are losing money. It is not enough to take a reactive stance to problems that occur with the motors at your facility. The combination of paying for a repair
    23 Mar
  • What to Consider When Buying an Electric Motor for Your Facility

    When you need to buy an electric motor, you need to consider a few important factors in making the right selection. For the most part, look at the energy efficiency of the motor. Higher efficiency motors reduce expenses and maximize the bottom line. We are going to examine a few things when buying a new electric motor: Look at the benefits of specifying the motor's energy efficient options The value of checking the cabling Local power transformer Energy Efficiency is the Way to Go It is true that electric motors use up a high percentage of electricity. Even more electrici
    21 Mar
  • Common Reasons for Variable Speed Drive Failure

    If you have a need for variable speed drives (VSDs), you likely are already aware of their many benefits. They are a variety of applications, from centrifuge pumps to machines for paper manufacturing. Using them, you save energy, improve the system, and have more control over pump outflow and other processes. Although using VSDs is a good idea, there may also be some issues involved with them as well. Those issues can include lateral vibrations and structural resonance. Plus, a VSD could fail. Failure leads to unexpected and costly repairs along with possible downtime. A variable sp
    16 Mar
  • PdMA Tip of the Week: Is Your Motor Tripping?

    One of the issues that may be experienced after installing a new motor is sometimes referred to as "nuisance trips." Although they certainly can be a nuisance, could it be that they are the sign of something more serious taking place? After all, when something is new, that doesn't always mean that it is of the highest quality. Tip of the Week The first thing you should do is look for the NEMA Code Letter (it should be located on the nameplate). The letter helps when you calculate the design locked rotor or In-Rush current for that particular motor. Perform an in-rush/start-up test to
    15 Mar
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