DRIVES, MOTORS + SWITCHGEAR
condition-based monitoring of equipment such as pumps and fans, based on vibration and load-envelope detection. To illustrate how it works, using the example of a pump: the VSD creates a baseline for power consumption and vi- bration as a function of the pump speed, based on one day, for example, or one week’s operation. Having established the baseline, the VSD can detect anomalies and report them. As well as monitoring power consumption patterns, it monitors motor windings. This condition monitoring func- tionality helps water facilities run more cost-effectively and reduce energy consumption. The VSD also offers other digital functions which con- tribute towards operational efficiencies with a lower GHG footprint. For example, a standard integrated de-ragging function automatically prevents pump clogging. “Digitalisation and control using VSDs have been proven to be key enablers in achieving the goals of reducing wa- ter loss, cutting energy consumption and delivering better quality of water. Danfoss is ready to help by replicating the success of Marselisborg in other cities around the world,” Warming said. □
On the water supply side, energy savings have been obtained by splitting the city into pressure zones, where, based on pressure transmitters and VSDs, pressure is reg- ulated to optimal levels in each zone. This offers a reduc- tion in energy usage and has the added benefit of having brought leakage down to between only six and eight per- cent. The Marselisborg wastewater facility has been upgrad- ed with more energy-efficient equipment and, in particular, with advanced real-time process control based on online sensors. Other key elements include VSD drives on all rotat- ing equipment; carbon harvesting; highly efficient compo- nents (such as bottom aeration and high-speed blowers); and a CHP installation (generating electricity and heat). The experience from this and other facilities indicates that, of all improvements obtained over the years, more than 70% of the energy reduction/improvement is obtained from better process control, through digitalisation, where the VSDs can play a key role. Advanced VSDs support digitalisation With its newest water-dedicated VSD, Danfoss has placed greater support behind digitalisation. Edge computing technologies integrated into the VSD provide intelligent,
For more information visit: www.danfoss.com
DRIVES, MOTORS + SWITCHGEAR : PRODUCTS + SERVICES
Drives can cut energy costs significantly
harsh industrial environments. At the same time, clients are looking for products that are easy to operate and maintain,” says McCree. ABB recently relaunched its ACS580MV drive in the local market, offering higher efficiency, cost-effectiveness, and ease of implementation to the industrial sector, with applications specifically for pumps and fans. Built-in energy calculators, including used and saved
The growing need to reduce energy use and CO 2 emis- sions, and cut operational costs at the same time, is see- ing unprecedented levels of interest in energy-efficient technologies – including low and medium voltage drives – across sub-Saharan Africa, according to power and automation technology group ABB. Drives have significant potential for energy-saving across a range of industries, including power, water and wastewater, cement production, mining, metals and pulp and paper. By controlling the speed and torque of motors, drives can reduce energy usage by between 30% and 50%, significantly improving energy efficiency. Drives can be used to adapt the motor speed to the ac- tual need, which optimises energy consumption and re- duces the environmental impact associated with waste- ful energy use. ABB Product Marketing Manager Sean McCree says while financial decision makers are generally attracted by the potential of drives to save costs and reduce en- ergy consumption, electrical engineers are realising ma- jor benefits through greater network reliability, reduced maintenance demands and increased longevity of me- chanical equipment. “There’s a growing demand for energy-efficient products in the sub-Saharan market; products that take into account the region’s specific requirements, from the voltage level to protection design, to ensure the drives can work optimally in a variety of complex,
ABB’s ACS580MV drive offers higher efficiency, cost- effectiveness, and ease of implementation
kWh, CO 2 reduction and money saved, help users monitor and fine-tune processes to achieve optimal energy use. The ACS580MV is fully compatible with the ABB Ability condition monitoring services, which allow customers to obtain real-time data about the status and performance of monitored equipment from any location. The drive is supplied ‘ready to connect’ to the ABB Ability condition monitoring services, which simplifies on-demand remote support. “Since the launch of the 3.3 kV voltage range, we have seen significant growth in local order intake from existing and new customers. This is a clear indication that the market has realised the product is well positioned to offer value backed by a well-established local service team,” says McCree.
in industrial applications.
For more information contact ABB. Visit: www.abb.com
MARCH 2022 Electricity + Control
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