Double-winding bistable solenoids are electromagnets commonly used in the field of electrical distribution cells, since they have the ability to generate a powerful impulse with reduced power consumption. This is why they are the ideal solution for applications where batteries are used as a power source.
Operation of double-winding bistable solenoids
1. Initial stroke: the first coil or winding, with a reduced ED% (duty cycle factor), is activated generating a powerful pulse that drives the core of the solenoid to its final position. This initial pulse provides the necessary force to move the core against the return force of the permanent magnet.
2. External commutation: once the initial stroke is completed, an external commutation is performed to activate the second coil.
3. Second stage: the second coil operates at ED100% and low power consumption. Its main function is to maintain the final position of the solenoid core, consuming a minimum amount of energy to compensate for the frictional forces and the attraction of the permanent magnet. These coils are ideal for when we need a powerful impulse but prolonged use and are an efficient and effective solution in environments where the power supply comes from batteries.
Advantages of using double-winding electromagnets in electrical distribution switchgear.
- Energy efficiency: the use of two coils with different ED% makes it possible to optimize energy consumption. The first coil provides the initial force with a powerful pulse, while the second coil maintains the position with a low continuous consumption.
- Heat reduction: the low power consumption of the second coil minimizes heat generation, which prolongs the life of the electromagnet or solenoid and reduces the need for cooling systems.
- Robustness and reliability: dual-winding bistable solenoids offer robust and reliable operation. The first coil provides the initial force needed to overcome the frictional forces and attraction of the permanent magnet, while the second coil securely maintains position over a long period of time.
- Suitable for batteries: energy efficiency and low power consumption make them an ideal solution for applications where batteries are used, extending battery life and reducing the need for recharging.
In summary, bistable double coil solenoids offer an efficient, effective and robust solution for applications that require controlled and precise movement with reduced energy consumption.
At NAFSA, we have extensive experience in the design and manufacture of all types of electromagnets. Our ERD series is specially designed for electrical distribution switchgear applications, offering superior performance and long service life. In addition, we can create custom solenoids to meet the specific needs of our customers.
