3S Smart electrical components Germany 3S Smart model 3S Smart price

3S Smart electrical components are components that convert electrical energy into magnetic energy for storage. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance and only opposes changes in current. If the inductor is in a state with no current flowing through it, it will attempt to oppose current flow when the circuit is connected; if the inductor is in a state with current flowing through it, it will attempt to maintain the current unchanged when the circuit is disconnected. Inductors are also known as chokes, reactors, or dynamic reactors.

3S Smart electrical components application

Metal waveguides and metal resonant cavities are widely used in the decimeter wave, centimeter wave, and longer millimeter wave bands. Since the cross-section of the waveguide and the dimensions of the resonant cavity are close to the wavelength, the dimensions of metal waveguides and resonant cavities are too small and difficult to manufacture. It is even more impossible to apply metal waveguides or resonant cavities in the infrared or visible light bands, where wavelengths are on the micrometer scale. For this reason, dielectric waveguides and dielectric resonators have rapidly developed and gained widespread application. Although the dimensions of dielectric waveguides and dielectric resonators are also on a scale comparable to the wavelength, they are easy to fabricate into tiny sizes using microfabrication techniques. For example, optical fibers and optical waveguides with cross-sectional dimensions on the micrometer scale belong to dielectric waveguides. The field in a metal waveguide can be regarded as caused by plane waves reflecting back and forth between conductor surfaces; the field in a dielectric waveguide can also be regarded as caused by total reflection of electromagnetic waves at dielectric interfaces. Therefore, a dense medium surrounded by a sparse medium forms a dielectric waveguide. In an ideal metal waveguide, the electromagnetic field forms a standing wave transversely, and outside the waveguide boundary, which approximates an ideal conductor, there is no electromagnetic field. In a dielectric waveguide, the electromagnetic field forms a standing wave transversely, but an electromagnetic field still exists outside the dielectric waveguide; it decreases exponentially in the transverse direction and is called an evanescent field. In a metal waveguide filled with a uniform medium, the TE mode and the TM mode can separately satisfy the short-circuit boundary conditions of the waveguide walls, so the TE mode and the TM mode can always be separated, and both can propagate in the metal waveguide. When a metal waveguide is filled with two or more media, or partially filled with a dielectric, the electromagnetic field must satisfy not only the boundary conditions on the conductor walls but also the continuity conditions at the media interfaces. In the case of uniform filling with two or more media, only the mixed TE and TM mode, the HEM mode, is possible. After understanding the above content, one can further learn about dielectric resonators. As early as 1939, the concept and theory of dielectric resonators were proposed, but due to the lack of suitable dielectric materials, this theory remained dormant for more than 20 years without practical development. By the 20th century, in the 60s, the successful development of high-permittivity ceramics such as rutile ceramic (ε≈80100) brought dielectric resonators back into attention. However, the high temperature coefficient of rutile ceramic limited its practical application. In the 20th century, in the 70s, barium titanate-based and zirconium titanate-based ceramics were developed; their high permittivity, low loss, and low temperature coefficient made dielectric resonators practical. Dielectric resonators have advantages such as small size, light weight, high quality factor, and good stability. They are particularly suitable for application in microstrip circuits or microwave integrated circuits and in the millimeter wave band, receiving significant attention and developing rapidly. When the permittivity is very high, the interface between the dielectric and air approximates an open circuit, and the reflection coefficient of electromagnetic waves at the interface approaches 4. At this point, the surface of the dielectric resonator can be regarded as an open-circuit wall, i.e., a magnetic wall. Thus, the dielectric resonator becomes a closed system with homogeneous boundary conditions, i.e., an equivalent open-circuit wall (magnetic wall) resonant cavity.

3S Smart electrical components characteristics

(1) wide transient response range, strong harmonic measurement capability. The quality of transient characteristics is an important parameter for judging whether a transformer can be applied in power systems, especially in coordination with relay protection operating times. Traditional electromagnetic transformers have poor response characteristics to high-frequency signals due to the presence of an iron core and cannot correctly reflect the transient process on the primary side. In contrast, the frequency range of optoelectronic transformers is mainly determined by the electronic circuit part, with no iron core saturation problem, so they can accurately reflect the transient process on the primary side. The structure of optoelectronic sensors allows measurement of harmonics on high-voltage power lines, which is difficult to achieve with electromagnetic induction transformers. (2) digital interface, strong communication capability. Since optoelectronic sensors transmit optical digital signals, they interface easily with communication networks, and there is no measurement error during transmission. Meanwhile, with the widespread adoption of microprocessor-based protection and control equipment, optoelectronic transformers can directly provide digital quantities to secondary equipment, thereby eliminating the converters and A/D sampling parts in the original protection devices, greatly simplifying secondary equipment and promoting research into new protection principles. (3) small size, light weight, easy to upgrade, meeting the requirements for substation miniaturization and compactness. Since optoelectronic sensors rely on sensor heads and electronic circuits for signal acquisition and processing, they are small in size, with weights generally below 1008 kg, making them easy to integrate into AIS or GIS, thus greatly reducing the footprint of substations and meeting the requirements for substation miniaturization and compactness. At the same time, connecting optoelectronic transformers to secondary equipment via a small number of optical fibers can significantly reduce cable trenches and cables.

3S Smart electrical components classification

1. Classification by relay outline dimensions: (1) miniature relays, (2) ultra-miniature relays, (3) small miniature relays. 2. Classification by relay load: (1) micro-power relays, (2) low-power relays, (3) medium-power relays, (4) high-power relays. 9. Classification by relay protection features: (1) sealed relays: relays with contacts and coils sealed inside a cover by welding or other methods, isolated from the surrounding medium, having a low leakage rate. (2) enclosed relays: relays with contacts and coils protected by being sealed (non-hermetically) in a housing. (3) open relays: relays that do not use a protective cover to protect contacts and coils. Among the above relays, electromagnetic relays and reed relays are the most commonly used in electronic fabrication.

Weidou Intelligent Technology professionally sells German 3S Smart connectors, 3S Smart switches, 3S Smart relays, 3S Smart controllers, 3S Smart plugs, 3S Smart sensors, 3S Smart resistors, 3S Smart capacitors, 3S Smart buses, 3S Smart modules, 3S Smart cables, 3S Smart power supplies, 3S Smart interfaces, 3S Smart gateways, 3S Smart circuit breakers, 3S Smart original imports from Germany. Welcome customers to inquire and order.