- Company overview The heart of SMC Vision & Philsophy Partnership Certifications Company culture
- Our service Design and Engineering Maintenance and Service Examine Production Line Upgrade and Transformation Storage and Logistics Processing, Trading and Distributor
- Management Our history Global responsibility Info Center
- Procurement center Internship
- Metal Steel Products Stainless Steel Products Aluminum Products Copper Products Galvanized Steel and PPGI Special Alloy Building Material
- Containers ISO Standard Container Equipment Container Storage Container Container House Refrigerated/Reefer Container Offshore Container Tank Container Container Fittings Container Trailer
- Gas Cylinder & Fire Extinguisher Cryogenic Liquid Cylinder Oxygen Gas Cylinder Storage Tank CNG Gas Cylinder LPG Gas Cylinder Hydrogen Gas Cylinder Nitrogen Gas Cylinder Industry Gas Cylinder Fire Extinguisher
- Metal Machinery Forming Machine Other Machinery Cutting Machine Processing Machine Bending Machine Block Machine Motor Spare Parts
- Mechanical Products Vehicle Industry Miscellany Mooring Equipment Marine Equipment Pressure Vessel Conveyor Belt Laser Equipment Bearing
- Electrical System Electrical Cable Automation Power Distribution Solar Power System Electric Protection System Transformer Production Line Lighting System
- Project Fiberglass Reinforced Plastic Plastic Pipes and Pipe Fittings Pontoon System
Upgrade and transformation
There's an increasing need for high-efficiency power conversion for a wide range of applications. Among the several available power factor correction (PFC) solutions, the critical conduction mode (CrM) PFC is a preferred method due to its simpler control scheme. However, the design will have problems caused by the wide operating frequency range. One simple solution is to limit the maximum operating frequency, with the accompanying drawback of increased total harmonic distortion (THD). As will be shown in this article, an innovative PFC solution, the frequency clamp critical conduction mode (FCCrM), clamps the frequency with a near-unity power factor while maintaining the benefit of CrM PFC.
By developing a greater understanding regarding electric motor efficiency and operating characteristics, you can realize some serious electric energy cost savings. An often overlooked and widely misunderstood characteristic of electric motors is power factor (PF). Proper electric motor application and efficiency are important things to know when applying or replacing a motor, although PF can be equally important when operating costs are considered.
The improvement measures implemented results in a plant PF of 93%, eliminating the $276 monthly PF charges. The measures also resulted in an average monthly plant peak demand reduction of 10kW — a $90 monthly savings. The project payback was less than 18 months. Note: The plant had an existing, functioning 200 kVAR fixed capacitor in place at the main electric service entrance for PF support before this project began. This capacitor remains in place.
