Heating elements in the railway sector: cornerstones of safety and innovation in modern electric traction The global rail sector is undergoing an unprecedented transformation, driven by the need for decarbonisation and the adoption of increasingly efficient high-speed transport systems. Against this backdrop, the management of electrical power on board locomotives is not merely a question [...]

Technical guide to selecting wire-wound resistors: differences between enamelled, bare and cemented types for industrial applications In the vast world of electronic components and industrial electrical engineering, power management and heat dissipation are everyday challenges. When high currents are involved and thermal stability is an absolute requirement, standard components can reach their limits. It is [...]

Guida tecnica alla scelta del resistore a filo: differenze tra smaltato, scoperto e cementato per applicazioni industriali Nel vasto mondo della componentistica elettronica e dell'elettrotecnica industriale, la gestione della potenza e la dissipazione del calore sono sfide quotidiane. Quando le correnti in gioco diventano elevate e la stabilità termica è un requisito imprescindibile, i componenti [...]

Flat-pack: Features, Applications and Available Families A flat-pack is a type of high-power resistor designed for industrial applications where compact size, efficient heat dissipation, and easy mechanical integration are required. Thanks to its structural configuration and metal enclosure, it represents an ideal solution for braking resistors, pre-charge resistors, and capacitor discharge resistors. Within the power [...]

High Power Resistive Solutions for Port Electrification In recent years, port electrification—also known as shore-to-ship power supply or cold ironing—has evolved from a voluntary environmental initiative into a regulatory requirement. The European AFIR Regulation now mandates the availability of shore power infrastructure in major TEN-T ports for container and passenger vessels, along with the obligation [...]

Heating resistors: when to use them and in which applications Heating resistors are electrical components designed to convert electrical energy into heat in a controlled and efficient way. In theory, any electrical resistor generates heat during operation, but not all resistors are suitable for use as heating elements. What distinguishes a true heating resistor from [...]

Passive harmonic filter: how it works and why it is essential in industrial systems A passive harmonic filter is a key solution for reducing waveform distortions that propagate through electrical networks in industrial systems. The growing use of non-linear loads, such as power electronic converters and arc furnaces, introduces harmonic components that alter the normal [...]

Bare Wire Resistors: What They Are and Why Fairfild Solutions Stand Out Bare wire resistors are devices designed to offer high thermal dissipation capability while maintaining extremely low thermal resistance. Thanks to their exposed wire-wound structure, these resistors allow efficient heat exchange with the surrounding environment and can be easily ventilated or assembled in groups [...]

Discharging a Capacitor: Why the Resistor Is Essential for Circuit Safety When a capacitor is charged, it is not simply a component waiting to be used: it is an actual energy reservoir. Even after disconnecting the power supply, the stored voltage can remain for minutes or even hours, ready to discharge through the first conductive [...]

Enameled Wirewound Resistors: What Are They Used For? Wirewound resistors are among the most reliable and versatile solutions for electrical energy dissipation in power electronics. Thanks to their construction — a resistive wire wound on a ceramic tube and coated with a vitreous enamel layer — they ensure high mechanical strength, thermal stability, and precision. [...]