ggk kunst electrical components German ggk kunst models ggk kunst prices

ggk kunst electrical components are switches controlled by electromagnets, that is, a combination of an electromagnet and a switch. When the electromagnet coil is energized, it generates electromagnetic attraction, causing the movable iron core to push or pull the switch contacts to close, thereby connecting the controlled circuit. Electromagnetic switches are widely used in various industries, most commonly as contactors in the industrial sector. An electromagnetic switch is the control switch on a starter motor and is one of the three major components of a starter motor (DC motor, transmission engagement mechanism, electromagnetic switch). Its working principle is that the coil generates electromagnetic attraction when energized, causing the movable iron core to move, thereby on one hand pulling the transmission engagement mechanism to move the starter pinion forward to engage with the engine flywheel ring gear, and on the other hand pushing the switch contacts to connect, allowing the DC motor to be energized and operate, thereby driving the engine to start.

ggk kunst electrical component characteristics

The static characteristics of a sensor refer to the relationship between the output quantity and the input quantity for static input signals. Since the input and output quantities are independent of time in this case, their relationship, i.e., the static characteristics of the sensor, can be described by an algebraic equation without time variables, or by a characteristic curve plotted with the input quantity as the abscissa and the corresponding output quantity as the ordinate. The main parameters characterizing the static characteristics of a sensor include: linearity, sensitivity, hysteresis, repeatability, drift, etc. (1) Linearity: Refers to the degree to which the actual relationship curve between the sensor output and input deviates from the fitted straight line. It is defined as the ratio of the maximum deviation between the actual characteristic curve and the fitted straight line over the full scale range to the full-scale output value. (2) Sensitivity: Sensitivity is an important indicator of the static characteristics of a sensor. It is defined as the ratio of the increment in the output quantity to the corresponding increment in the input quantity that causes this increment. Use S to represent sensitivity. (3) Hysteresis: Hysteresis is the phenomenon where the input-output characteristic curves do not coincide when the sensor input changes from small to large (forward stroke) and from large to small (reverse stroke). For the same magnitude of input signal, the output signals for the forward and reverse strokes of the sensor are not equal; this difference is called the hysteresis difference. (4) Repeatability: Repeatability refers to the degree of inconsistency in the characteristic curves obtained when the sensor input undergoes continuous multiple full-scale changes in the same direction. (5) Drift: Sensor drift refers to the phenomenon where the sensor output changes over time while the input remains constant. There are two causes of drift: one is the sensor's own structural parameters; the other is the surrounding environment (such as temperature, humidity, etc.). (6) Resolution: When the sensor input increases slowly from a non-zero value, an observable change in the output occurs after exceeding a certain increment; this input increment is called the sensor's resolution, i.e., the minimum input increment. (7) Threshold: When the sensor input increases slowly from zero, an observable change in the output occurs after reaching a certain value; this input value is called the sensor's threshold voltage.

ggk kunst electrical component structure

The structure of a power cord is not very complex, but it cannot be simply understood at a glance from the surface; if you study the power cord carefully, some aspects require professional understanding of the power cord structure. The structure of a power cord mainly consists of an outer sheath, an inner sheath, and conductors. Common transmission conductors include metal wires made of copper, aluminum, etc. (1) The outer sheath, also known as the protective sheath, is the outermost layer of the power cord. This outer sheath serves to protect the power cord and possesses robust properties such as high temperature resistance, low temperature resistance, resistance to natural light interference, good flexibility, long service life, and environmentally friendly materials. (2) The inner sheath, also known as the insulating sheath, is an indispensable intermediate structural part of the power cord. As the name suggests, the main function of the insulating sheath is insulation, ensuring the electrical safety of the power cord by preventing any leakage between the copper wires and the air. Additionally, the material of the insulating sheath must be soft to ensure it fits well within the intermediate layer. (3) Copper wire is the core part of the power cord, serving primarily as the carrier for current and voltage. The density of the copper wire directly affects the quality of the power cord. The material of the power cord is also a crucial factor in quality control, and the quantity and flexibility of the copper wire are among the considerations. (4) The inner sheath is a layer of material wrapping the cable between the shielding layer and the wire core, typically made of polyvinyl chloride (PVC) or polyethylene (PE) plastic. Low-smoke zero-halogen materials are also used. Used in accordance with process regulations, it prevents the insulation layer from coming into contact with water, air, or other objects, avoiding moisture absorption and mechanical damage to the insulation layer.

ggk kunst electrical component classification

Classification by material: a, wire-wound resistors are formed by winding resistance wire. They are made by winding high-resistance alloy wire around an insulating skeleton, with a heat-resistant glaze insulation layer or insulating varnish coated on the outside. Wire-wound resistors have a low temperature coefficient, high resistance value precision, good stability, heat and corrosion resistance, and are mainly used as precision high-power resistors. The disadvantages are poor high-frequency performance and a large time constant. b, carbon composition resistors are made by pressing carbon and synthetic plastic together. c, carbon film resistors are made by plating a layer of carbon onto a ceramic tube, formed by depositing crystalline carbon onto a ceramic rod skeleton. Carbon film resistors feature low cost, stable performance, a wide resistance range, and low temperature and voltage coefficients. They are currently the most widely used resistors. d, metal film resistors are made by plating a layer of metal onto a ceramic tube, using vacuum evaporation to deposit alloy material onto the surface of a ceramic rod skeleton. Metal film resistors offer higher precision than carbon film resistors, good stability, low noise, and a small temperature coefficient. They are extensively used in instruments and communication equipment. e, metal oxide film resistors are made by plating a layer of tin oxide onto a ceramic tube, depositing a layer of metal oxide on an insulating rod. Since the material itself is an oxide, Therefore, it is stable at high temperatures, resistant to thermal shock, with strong load capacity. Classified by application, there are general-purpose, precision, high-frequency, high-voltage, high-resistance, high-power, and resistor networks.

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