Technical Expertise

Here you will find information and knowledge of interesting topics selected by Zytec. This knowledge can be used to gain insight into the possibilities offered by the Zytec contact-free magnetic coupling and the business case that you may be working on. 

Many of the current problems in rotating equipment are solved with corrective measures. A rotating equipment layout with a Zytec contact-free magnetic coupling prevents the problem because the root-cause is deleted. A theme e.g. as alignment is no longer relevant and power quality effects by using a VFD just do not come true. Understanding the current, often invisible, problems is essential for making a good business case.

Furthermore, you can find various general information and articles.

Misalignment

• Why alignment?
• Why you should abandon hot alignment practices
• How Does Plant Pipe Strain Problems Affect Pumping Systems?
• Motor Shaft Misalignment Bearing Load Analysis (White Paper: Click on download full PDF)
• Motor Misalignment and Motor Efficiency (White Paper: Click on download full PDF)
• Precision alignment (+video)

Power Quality

• Power Quality (White Paper)
• Spanningsdips (White Paper)
• Power factor correction: a guide for the plant engineer

Variable Frequency Drive (VFD)

• Understanding VFD Common Mode Problems
• Considerations in the design of VFD Motor-driven Compressors
• Are VFDs worth it for pump applications? 
• Electric Motor Efficiency under Variable Frequencies and Loads
• VFD overall cooling-air load, including the impact of combined sensible and latent cooling components on VFD power-demand loss factor

Bearing currents

• Bearing Currents in Motors using a VFD (White Paper)

Motor

• Basic Motor Technology
• Specification of Electric Motors - Fundamentals
• Most Common Motor Bearing Problems
• Why Motors fails
• Motor generality proposals for the coordination of protective devices 
   

Pump

• Centrifugal Pump Flow Operating Regions and Impact on Reliability
• The left side of a Centrifugal Pump's performance curve
• Pump Fundamentals
• Understanding of pumpcurves
• Energy saving principle choke valve vs speed reduction
• The Effect on Impeller Trim on Centrifugal Pump Efficiency
• What happens when you reduce the impeller vane diameter?
• Cavitation Effects in Centrifugal Pumps 
• Experiences with Syncronic Magnetic Drive Pumps (Magnet-Magnet) -> understanding the different principle

V-Belt

• Energy Savings from Synchronous Belt Drives 

Maintenance

• Effective Predictive and Pro-Active Maintenance for Pumps
• Inch shaft tolerances: EASA Standard AR100-2010 Recommended pratice for the repair of rotating electrical aparatus

Subsidy

• RVO Subsidie Energie-investeringsaftrek EIA
• ​Improving measurements Rotating Equipment (Klima Active DE)