Motor Start Analysis in Greece
Care Labs provides a specialized Motor start study and analysis service to businesses throughout Greece. The primary goal of our motor start analysis service is to evaluate the unusual consequences of starting a large motor. Aside from successfully connecting the electric motor to the line voltage, there are several factors to consider before starting an electric motor, such as nuisance tripping, excessive nominal currents, and flickering or dimming of light, all of which indicate that a power system isn’t functioning properly.
Care Labs will send trained experts to your location to collect current and historical motor installation data. Then, using the obtained data and input from the manufacturer, calculations are performed to forecast future consequences, and solutions to minimize the effects are proposed.
Both static and dynamic simulation approaches can be used to analyze motor starting techniques. We primarily focus on dynamic motor starting studies that simulate motor starting conditions such as:
- The observed starting impedance of the electric motor is modelled to obtain the load flow solution.
- For pre-fault short circuit situations, short-circuit method calculations are used, and voltage drop calculations are used for motor starting currents.
- When a precise dynamic model of the electric motor circuit and load-torque characteristics exist, the dynamic model of the electric motor can be used in a standard transient stability algorithm to calculate the effect of motor starting.
- When comprehensive dynamic model information for the electric motor is unavailable, transient stability simulations can be used.
- When a precise dynamic model of the electric motor circuit and load-torque characteristics exist, the dynamic model of the electric motor can be used in a standard transient stability algorithm to calculate the effect of motor starting.
- When comprehensive dynamic model information for the electric motor is unavailable, transient stability simulations can be used.
Motor Start Analysis is Required in Greece:
The use of motors in modern industrial systems is increasing at an exponential rate, as is the size of the electric motor.
Starting a large line-connected motor can disrupt the electric motor, locally linked loads, and electrically distant buses.
When starting an electric motor, the voltage at the motor terminal should be kept at 80% or higher of the rated voltage. Voltage difference affects a motor’s load torque because the square of its terminal voltage is exactly proportional to it.
If the voltage drop is substantial, operating machines may exceed their breakdown torque and decelerate or stall. Voltage drop affects electrical equipment, sensitive control devices, lighting loads, and more.
Furthermore, excessive starting current reduces terminal voltage, which increases the current drawn by all systems serving a continuous load. Under voltage relays are also found to be malfunctioning.
When to Have a Motor Start Analysis:
- Before or during the purchase of a large motor.
- If no generator is present and the motor rating exceeds 30% of the base KVA rating of the supply transformer.
- If the system is fed solely by the generator and the motor rating exceeds 10-15% of the KVA rating of the generator.
- A motor start study may be required if a large number of motors start at the same time for a process in an industry.
- Because smaller power systems typically have limited capacity, voltage drop issues when starting a high-capacity motor are magnified. Analysis of motor starting aids in understanding the output of small systems containing generators.
Advantages of Motor Start Analysis:
Motor start-up analysis Selecting a motor or starting technique with optimal speed-torque characteristics is advantageous. To avoid exceeding the torque limits of the equipment, any special loads must be accelerated under closely monitored conditions. It is possible to analyze the shaft operation of the motor at any time by performing a motor start analysis. As a result, it aids in determining the permissible torque limits of the equipment.
Motor starting studies establish machine voltage and if the electric motor can start and accelerate. To further assess your electric motor, Care Labs offers motor start studies by trained specialists.
We offer motor start analysis services in all major cities, including Athens, Thessaloniki, Patras, Larissa, and Heraklion. Book your motor starting study today or contact us for a quote!
