Application case of ABB motor supporting heavy-duty centrifugal fan

ABB low/high voltage motors are the most commonly used driving accessories for industrial mainstream high flow, medium and high voltage centrifugal fans.

Problem & Solution

Renovation of induced draft fan in Java coal-fired power plant in Indonesia: The original motor output was insufficient and could only burn high priced high-quality coal. The company hopes to be compatible with low calorific value inferior coal and improve the negative pressure capacity of induced draft fan. Replace with ABB high-voltage industrial motor directly driving this centrifugal induced draft fan, matched with ABB frequency converter speed regulation.

Key Benefits

• The exhaust capacity of the fan has been increased by 22%, and the boiler can use low-cost and low-grade coal for a long time, resulting in a significant reduction in fuel costs;
• ABB motors with F-class insulation and strong anti vibration characteristics are suitable for high-temperature flue gas fluctuation conditions of induced draft fans, reducing annual downtime by 90%;
• After variable frequency adjustment of air volume, the comprehensive energy-saving rate of the fan system exceeds 30%.