Motor Start Analysis

Find Out What It's All About

Care Labs offers specialized Motor start research and analysis services to businesses in Germany. Our motor start analysis service’s main goal is to assess the unusual effects of starting a big motor. Before starting an electric motor, there are a few additional factors to consider in addition to properly connecting it to the line voltage, including nuisance tripping, high nominal currents, and flickering or fading light, all of which are signs of a bad power supply. 

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What is Involved

To gather data on recent and past motor installations, Care Labs will send competent employees to your location. Then calculations are done to anticipate future effects, and suggestions for reducing the effects are given. These calculations are done utilizing the gathered data and manufacturer input.

Motor starting techniques may be assessed using static and dynamic simulation methods:

  • To determine the best solution for the load flow, the measured starting impedance of the electric motor is modelled.
  • In pre-fault short circuit situations, the short-circuit approach is employed; for motor starting currents, voltage drop calculations are applied.
  • The dynamic model of the electric motor may be used to determine the impact of motor starting in a traditional transient stability technique if an accurate dynamic model of the electric motor circuit and load-torque characteristics is provided.
  • Transient stability simulations can be used if detailed dynamic model information for an electric motor is not available.
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Motor Start Analysis is Required in Germany:

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Modern industrial systems increasingly require motors, and electric motor size is expanding as well. When a big motor connected to a line is started, it can interfere with nearby loads, electrically distant buses, and the electric motor. When starting an electric motor, the terminal voltage must be at 80% of the rated voltage or above. Since the square of the terminal voltage of a motor is directly proportional to torque, voltage difference affects the motor’s load torque. 

Running machines may approach their breaking torque and slow down or stop in the case of a significant voltage decrease. Voltage drops affect a variety of items, including lighting loads, delicate control systems, and electrical equipment. Furthermore, a high beginning current decreases the terminal voltage, increasing the current drawn by all systems supplying a continuous load. Furthermore, faulty low-voltage relays are located. 

When is a Motor Start Analysis Necessary?

  • Before or during the purchase of a big motor.
  • If there is no generator available and the motor rating is greater than 30% of the supply transformer’s base KVA rating.
  • If the motor rating exceeds 10% to 15% of the generator’s KVA rating and the generator is the only source of power for the system.
  • If the system’s sole power source is the generator. A motor start study can be necessary if many motors start at once in an industrial setting.
  • The capacity limitations of smaller power supplies make voltage loss issues when starting a motor with a big capacity even more problematic. Understanding the output of systems that use small generators is made easier by looking at how motors start up.
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Benefits of Motor Start Analysis

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Review of the motor launch It is advantageous to employ a motor or starting method with advantageous speed-torque characteristics. Any unexpected loads must be accelerated under supervision to prevent going beyond the equipment’s torque limits. By performing a motor start study, the motor’s shaft functioning may be assessed. As a result, it helps in estimating the device’s acceptable torque restrictions. 

Studies on motors are starting to determine if an electric motor can start and accelerate as well as the machine’s voltage. Care Labs’ qualified staff perform motor start studies to completely assess your electric motor. In every major German city, including Berlin, Hamburg, Munich, Cologne, Frankfurt, and Stuttgart, we provide motor start analysis services. Call us for pricing or reserve your motor to start studying right away! 

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