Variable Frequency Drives in Water Applications08/12/2019A variable frequency drive is used for adjusting a flow or pressure to the actual demand. It controls the frequency of the electrical power supplied to a pump. Significant power savings can be achieved when using a VFD. A variable-frequency drive is a system for controlling the rotational speed of an alternating current electric motor. It controls the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, or inverter drives. Automatic frequency control consists of a primary electrical circuit converting the alternating current into a direct current, then converting it back into an alternating current with the required frequency. Variable-frequency drives are widely used on pumps for many different applications. Reasons for employing automatic frequency control can both be related to the functionality of the application and for saving energy. For example, automatic frequency control is used in pump applications where the flow is matched either to volume or pressure. The pump adjusts its revolutions to a given setpoint via a regulating loop. Adjusting the flow or pressure to the actual demand reduces power consumption. Drinking water production Whether surface water or groundwater is used for water production, AC drives can help optimize the process and reduce energy and maintenance costs. A typical application is the control of deep well pumps, where the integrated advanced minimum speed monitor secures sufficient lubrication to protect the pump. Energy savings are achieved by selecting wells based on water level height. The drive is also widely used in the desalination industry for controlling inlet and high-pressure pumps as well as booster pumps in relation to energy recovery. Drinking water distribution Within the water supply, drinking water distribution is typically the largest energy consumer. At the same time, 25–50% leakage is not unusual. By dividing the water distribution into pressure zones, the average pressure can often be reduced by 30–40%. AC drives are very widely used in boosting pumping stations to regulate pressure in each pressure zone. Drive setup functions help simplify the installation and make it more reliable, reduce the risk of water hammer, control pressure and reduce energy consumption. Irrigation With access to water resources becoming scarce in some regions of the world, efficient and sustainable irrigation is becoming more and more important. It’s all about supplying enough water to get maximum crop yield without using more water and energy than absolutely necessary. AC drives adapt pressure or flow rate to the actual need. And integrated functions help to both protect the pipe system by limiting pressure boost and cut energy consumption. Wastewater canalization system Energy optimization and SCADA control of the wastewater canalization system is a fast-moving trend. By a deragging function, it is possible to improve pump efficiency by 15–30% and also drastically reduce maintenance costs. The deragging function prevents pump efficiency from dropping by increasing clocking and extends pump maintenance intervals. Using an AC drive together with a SCADA system also offers the possibility to secure maximum utilization of the volume capacity in the canalization system in relation to storm water overflow. Reduced leakage and energy consumption go hand in hand The energy used in the water distribution system typically represents 60–80% of the total energy consumption for the whole water supply system. By adapting the pressure to the real need using pressure zones and boosting pumping stations, you can achieve energy savings of 25–40%. At the same time, you can reduce water leakage by 30–40%. Call on the experts at Precision Electronic Services at 800-732-4695 for your pump drive repairs. Back To Blog
Variable Frequency Drives in Water Applications08/12/2019A variable frequency drive is used for adjusting a flow or pressure to the actual demand. It controls the frequency of the electrical power supplied to a pump. Significant power savings can be achieved when using a VFD. A variable-frequency drive is a system for controlling the rotational speed of an alternating current electric motor. It controls the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, or inverter drives. Automatic frequency control consists of a primary electrical circuit converting the alternating current into a direct current, then converting it back into an alternating current with the required frequency. Variable-frequency drives are widely used on pumps for many different applications. Reasons for employing automatic frequency control can both be related to the functionality of the application and for saving energy. For example, automatic frequency control is used in pump applications where the flow is matched either to volume or pressure. The pump adjusts its revolutions to a given setpoint via a regulating loop. Adjusting the flow or pressure to the actual demand reduces power consumption. Drinking water production Whether surface water or groundwater is used for water production, AC drives can help optimize the process and reduce energy and maintenance costs. A typical application is the control of deep well pumps, where the integrated advanced minimum speed monitor secures sufficient lubrication to protect the pump. Energy savings are achieved by selecting wells based on water level height. The drive is also widely used in the desalination industry for controlling inlet and high-pressure pumps as well as booster pumps in relation to energy recovery. Drinking water distribution Within the water supply, drinking water distribution is typically the largest energy consumer. At the same time, 25–50% leakage is not unusual. By dividing the water distribution into pressure zones, the average pressure can often be reduced by 30–40%. AC drives are very widely used in boosting pumping stations to regulate pressure in each pressure zone. Drive setup functions help simplify the installation and make it more reliable, reduce the risk of water hammer, control pressure and reduce energy consumption. Irrigation With access to water resources becoming scarce in some regions of the world, efficient and sustainable irrigation is becoming more and more important. It’s all about supplying enough water to get maximum crop yield without using more water and energy than absolutely necessary. AC drives adapt pressure or flow rate to the actual need. And integrated functions help to both protect the pipe system by limiting pressure boost and cut energy consumption. Wastewater canalization system Energy optimization and SCADA control of the wastewater canalization system is a fast-moving trend. By a deragging function, it is possible to improve pump efficiency by 15–30% and also drastically reduce maintenance costs. The deragging function prevents pump efficiency from dropping by increasing clocking and extends pump maintenance intervals. Using an AC drive together with a SCADA system also offers the possibility to secure maximum utilization of the volume capacity in the canalization system in relation to storm water overflow. Reduced leakage and energy consumption go hand in hand The energy used in the water distribution system typically represents 60–80% of the total energy consumption for the whole water supply system. By adapting the pressure to the real need using pressure zones and boosting pumping stations, you can achieve energy savings of 25–40%. At the same time, you can reduce water leakage by 30–40%. Call on the experts at Precision Electronic Services at 800-732-4695 for your pump drive repairs.