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How to protect electrical motors in heat

Electric motors are crucial components in biogas plants and need to be properly maintained to ensure a long service life. Here are 10 important points to consider:

  1. Select motors with high operating temperature.

  2. Choose motors with a robust construction and high degree of protection.

  3. Ensure effective cooling of the motors.

  4. Use corrosion-resistant materials.

  5. Schedule regular maintenance and inspection.

  6. Set up monitoring systems.

  7. Train operators to operate the motors correctly.

  8. Use high quality gaskets and sealing materials.

  9. Consider operating times when selecting motors.

  10. Maintain comprehensive documentation on the servicing and maintenance of the engines.

By following these points, you can help to ensure that your electric motors in biogas plants last for many years to come.

Here are some additional tips for extending the lifespan of electric motors in biogas plants:

  • Use motors that are sized appropriately for the load.

  • Avoid overloading the motors.

  • Operate the motors within their specified temperature range.

  • Keep the motors clean and free of debris.

  • Use high-quality lubricants.

  • Inspect the motors regularly for signs of wear and tear.

By following these tips, you can help to extend the lifespan of your electric motors in biogas plants and ensure that they operate efficiently and reliably for many years to come.


Monitoring with the Stromfee diary offers numerous advantages for monitoring and optimizing the electric motors in biogas plants. From real-time monitoring and early detection of problems to the identification of energy saving potential and long-term performance optimization, the Stromfee diary enables you to take a proactive approach to maintenance and ensure that your motors operate efficiently and reliably for many years to come.

Here are some of the key benefits of using the Stromfee diary:

  • Real-time monitoring: You can see how your motors are performing in real time, which allows you to identify any problems early on and take corrective action before they cause major damage.

  • Early detection of problems: The Stromfee diary can help you to detect potential problems early on, such as excessive wear or insufficient cooling. This gives you time to take action before the problem escalates and causes major damage.

  • Optimizing maintenance planning: The data collected by the Stromfee diary can help you to optimize your maintenance planning. You can see which motors are due for maintenance and when, so that you can schedule the work accordingly. This helps to reduce downtime and keep your motors running smoothly.

  • Identification of potential energy savings: The Stromfee diary can help you to identify areas where you can save energy. You can see how much energy each motor is using and identify any areas where the consumption is inefficient. This information can help you to implement targeted energy optimization measures.

  • Long-term performance optimization: The Stromfee diary can help you to track the long-term performance of your motors. This allows you to identify any trends or patterns that could indicate a problem. You can also use the data to compare the performance of different motors and identify the most efficient ones.

  • Remote monitoring and alarm functions: The Stromfee diary allows you to monitor your motors remotely. This means that you can check on their performance even when you are not on site. The diary also has alarm functions that can notify you if there is a problem with a motor. This gives you time to take action before the problem escalates.

  • Data recording and analysis: The Stromfee diary records all relevant operating data. This data can be used to analyze the performance of your motors and identify any areas for improvement. You can also use the data to create reports that can be used to track performance targets or demonstrate compliance with regulations.

  • Transparency and reporting: The Stromfee diary gives you a transparent view of the operation of your motors. This information can be used to track performance targets, demonstrate compliance with regulations, or make informed decisions about maintenance and optimization.

  • Easy integration and operation: The Stromfee diary can be integrated into your existing system infrastructure and is easy to use. The user-friendly interface makes it easy to retrieve, analyze, and interpret data. Installation and setup are usually uncomplicated.

  • Cost savings and return on investment: Monitoring with the Stromfee diary can lead to significant cost savings. By optimizing energy consumption, identifying problems early, and planning maintenance in a targeted manner, you can minimize downtime and improve the efficiency of your plant. The investment in the Stromfee diary can therefore quickly pay for itself and lead to a positive return on investment in the long term.

Overall, the Stromfee diary is a powerful tool that can help you to monitor and optimize the electric motors in your biogas plant. The benefits of using the diary are numerous and can lead to significant cost savings and improved performance. If you are looking for a way to improve the efficiency of your biogas plant, the Stromfee diary is a great option.


The use of frequency converters in connection with the monitoring system of the Stromfee diary offers a number of advantages compared to agitators without these technologies.

The combination enables more efficient use of energy, more precise control of stirring power, real-time monitoring and predictive maintenance. Although there is an initial investment cost, the long-term benefits in terms of energy savings, longer engine life and reduced maintenance costs can outweigh the costs.

The combination of frequency converters and monitoring is therefore recommended to optimize the performance and service life of agitators in biogas plants.

Here is a table summarizing the advantages and disadvantages of agitators with and without frequency converters and monitoring:

FeatureAgitators with frequency converters and monitoringAgitators without frequency converters and monitoringEnergy efficiencyMore efficientLess efficientOperational flexibilityMore flexibleLess flexibleProtection of the componentsBetter protectionWorse protectionMonitoring and analysisMore detailed monitoringLess detailed monitoringFault diagnosis and predictive maintenancePossibleNot possibleLong-term performance optimizationPossibleNot possibleAcquisition costsHigherLower

Overall, the use of frequency converters and monitoring in agitators offers a number of advantages that can lead to significant benefits in terms of energy savings, longer engine life and reduced maintenance costs. The initial investment cost may be higher, but the long-term benefits can outweigh the costs.

I hope this helps! Let me know if you have any other questions.

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