Modern Pumping Station
A modern pumping station is a complex automated system that operates under variable loads. Water consumption can fluctuate depending on the day of the week, time of day, season, weather conditions, and other factors. Due to such changes, adjusting the operation of pumps becomes a necessity. For example, untimely reduction of pump capacity can cause excessive pressure in the water supply system, which, in turn, leads to various negative consequences, such as:
- Increased wear on system components;
- Leaking in poorly sealed areas;
- Emergency breaks at pipe joints;
- Unjustified energy losses.
Regulating Pump Operation
Thus, ensuring the correct operation of pumps is one of the most important tasks in the operation of any pumping station, regardless of its complexity and capacity. The most common method of regulating pump operation is the use of frequency converters (inverters). Inverters are the optimal choice in terms of price/convenience/reliability/capabilities. They regulate the rotor speed of the electric motor located in the pump, which allows for maintaining optimal water pressure in the system, regardless of the current level of water consumption.
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Interaction of Frequency Converters
Modern frequency converters can work in conjunction with various automation systems. Based on the readings of water supply system sensors, they automatically provide commands for managing the inverter, adjusting the motor's RPM. The application area of inverters is not limited to industrial installations or large pumping stations. They can also be used on a household level, for example, for pumps in water wells for homes or summer cottages. Frequency converters can save up to 20% of electricity and significantly extend the motor's lifespan due to smooth starting and stopping, as well as reduced starting currents.
Advantages of Using Frequency Converters
- Negate the negative effects of voltage fluctuations;
- Reduce the likelihood of overheating the pumping station's motor;
- Prevent the occurrence of hydraulic shocks in the system;
- Effectively manage a large number of pumps;
- Simplify the automation of pumping station operations and reduce operational costs.
Fields of Application
The list of fields in which frequency converters are used to control pumps is very diverse. This includes irrigation systems, pump lifting systems, maintaining constant levels in reservoirs, and much more. The use of inverters when working with pumps has significant potential for increasing the efficiency and reliability of water supply.