Electricity and Control January-February 2025

Drives, motors + switchgear

300 V or more. A proactive approach can help customers – and system engineers – enhance system reliability and ensure that the electrical motors used have adequate CIV ratings.

By using advanced simulation techniques, customers can make informed decisions in choosing their motors and mitigating risk. Simulations also enable the analysis of various scenarios, using di€erent cable lengths and types, assisting customers to select motors that meet specific application requirements. Such simulations should be considered for power systems operating at

For more information visit: www.referro.co.za

Drives, motors + switchgear: Products + services

New generation low-power frequency inverters

and three-phase (380-440 V) systems. Integrated protection features include over-voltage, under-voltage and over current safeguards. Additional advanced functionalities include PID feedback for precise closed-loop control, quick current limiting and automatic voltage regulation (AVR). BMG’s Synergy PI150 inverters are equipped with a built in electronic thermal relay (ETR) for motor protection and o€er compatibility with various control methods. Features like flying start, dc braking and torque control, ensure seamless operation under challenging conditions. With its robust design, the range complies with the highest international standards, including IEC 61800-5-1 for safety and IEC 61800-3 for EMC (electromagnetic compatibility), to ensure enhanced reliability and optimum performance in demanding applications. BMG specialists support the Synergy PI150 series with a technical advisory and support service, tailored to meet the specifications of contractors, designers and end users. A team of technicians, with extensive experience in motion control engineering, o€ers a comprehensive a‘er-sales service, including 24-hour assistance, to ensure uninterrupted productivity. BMG has been in business for over 50 years. It has specialist assembly and repair workshops for drives, conveyors, hydraulics and pneumatics, as well as electric motors, electronics, gaskets, lubrication systems and filtration. The company’s extensive branch network across Africa provides easy access to quality branded products and services wherever they are needed.

As a provider of integrated engineering solutions BMG o€ers a comprehensive electromechanical capability that includes customised system design, product selection, commissioning support and ongoing technical support. New to BMG’s electromechanical range are energy-e€icient Synergy PI150 series frequency inverters, which are designed for use in applications ranging from machine tools to packaging, printing, food and beverage production, irrigation and pumping systems. The high-performance inverters are also e€ective in operating blowers, fans, conveyors and mixers. “Our newly launched Synergy PI150 frequency inverters, which are versatile, general-purpose drives, are designed to enhance e€iciency and reduce costs in industrial, manufacturing and various other market sectors,” says David Dyce, Business Unit Manager: Electronics, at BMG. “The PI150 series forms part of BMG’s Synergy range, which is engineered for user-friendly operation, reliable performance, cost-e€ectiveness and ease of installation and commissioning. “The new generation frequency inverters have a compact design, allowing for side-by-side installation without spacing, which minimises cabinet size requirements and lowers installation costs,” Dyce adds. “Energy-e€icient operation also supports sustainability and contributes to overall cost savings for the user.” Key technical capabilities include high-performance vector control, V/F control without an encoder and automatic motor adaptation (AMA). The inverters have a low temperature rise and support a wide input voltage range for single-phase (220-240 V)

For more information visit: www.bmgworld.net

BMG’s new PI150 frequency inverters.

8 Electricity + Control JAN-FEB 2025