xWAGO electrical components Germany xWAGO model xWAGO price

xWAGO electrical components are devices that change AC voltage using the principle of electromagnetic induction. The main components are the primary winding, secondary winding, and iron core (magnetic core). Main functions include: voltage transformation, current transformation, impedance transformation, isolation, and voltage stabilization (magnetic saturation transformer). Transformers can be classified by application into: distribution transformers, power transformers, fully sealed transformers, combined transformers, dry-type transformers, oil-immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type substation test transformers, phase-shifting transformers, high-current transformers, excitation transformers, etc.

xWAGO electrical component characteristics

The so-called dynamic characteristic refers to the output characteristic of a sensor when the input changes. In practical work, the dynamic characteristic of a sensor is often expressed by its response to certain standard input signals. This is because the response of a sensor to standard input signals is easy to obtain by experimental methods, and there is a certain relationship between its response to standard input signals and its response to any input signal; often, knowing the former allows one to deduce the latter. The most commonly used standard input signals are step signals and sinusoidal signals, so the dynamic characteristics of sensors are also often expressed by step response and frequency response.

xWAGO electrical component principle

The main raw material for ferrite beads is ferrite. Ferrite is a ferrimagnetic material with a cubic lattice structure. Ferrite materials are iron-magnesium alloys or iron-nickel alloys. Their manufacturing process and mechanical properties are similar to ceramics, and their color is gray-black. One type of magnetic core frequently used in electromagnetic interference filters is ferrite material, and many manufacturers provide ferrite materials specifically for electromagnetic interference suppression. The characteristics of this material are very high high-frequency loss and high permeability, which minimizes the capacitance generated between the coil windings of an inductor under high-frequency, high-impedance conditions. For ferrites used for electromagnetic interference suppression, the most important performance parameters are permeability μ and saturation flux density Bs. Permeability μ can be expressed as a complex number, where the real part constitutes inductance and the imaginary part represents loss, which increases with frequency. Therefore, its equivalent circuit is a series circuit composed of inductance L and resistance R, where both L and R are functions of frequency. When a wire passes through this ferrite core, the resulting inductive impedance formally increases with frequency, but the mechanism is completely different at different frequencies. In the low-frequency range, the impedance consists of the inductive reactance of the inductor. At low frequencies, R is very small, the permeability of the magnetic core is high, so the inductance is large, and L plays the main role. Electromagnetic interference is suppressed by reflection, and at this time, the loss of the magnetic core is small. The entire device is an inductor with low loss and high Q characteristics. This type of inductor is prone to resonance, so in the low-frequency range, sometimes interference may increase after using ferrite beads. In the high-frequency range, the impedance consists of the resistive component. As the frequency increases, the permeability of the magnetic core decreases, leading to a decrease in inductance and inductive reactance. However, at this time, the loss of the magnetic core increases, and the resistive component increases, leading to an increase in total impedance. When high-frequency signals pass through the ferrite, electromagnetic interference is absorbed and dissipated as heat. Ferrite suppression components are widely used on printed circuit boards, power lines, and data lines. For example, adding ferrite suppression components at the power line entry point of a printed board can filter out high-frequency interference. Ferrite rings or beads are specifically used to suppress high-frequency interference and spike interference on signal lines and power lines, and they also have the ability to absorb electrostatic discharge pulse interference. The value of the two components is proportional to the length of the bead, and the length of the bead has a significant impact on the suppression effect; the longer the bead, the better the suppression effect. Inductors can be used for power filtering. The circuit symbol for a ferrite bead is an inductor, but the model number indicates that a ferrite bead is used. In terms of circuit function, ferrite beads and inductors operate on the same principle, differing only in frequency characteristics. Ferrite beads are composed of oxide magnets. Ferrite beads have a significant blocking effect only on high-frequency signals; their resistance is much smaller than that of inductors at low frequencies. Ferrite beads are a type of anti-interference component that has developed rapidly in application; they are inexpensive, easy to use, and effective at filtering high-frequency noise.

xWAGO electrical component structure

A generator is typically composed of components such as the stator, rotor, end covers, and bearings. The stator consists of the stator core, winding coils, frame, and other structural parts that fix these components. The rotor consists of the rotor core (or magnetic poles, yoke), windings, retaining rings, centering rings, slip rings, fan, and shaft. The bearings and end covers connect and assemble the stator and rotor of the generator, allowing the rotor to rotate within the stator, cutting magnetic flux lines, thereby generating induced electromotive force. This is led out through terminal blocks and connected to the circuit, generating current.

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