kathrein-werke electrical components Germany kathrein-werke model kathrein-werke price

kathrein-werke electrical components are products whose raw material molecular composition is not altered during factory processing, and can be referred to as components. Components belong to devices that do not require an energy source. They include: resistors, capacitors, and inductors. Circuit-type components include diodes and resistors; connection-type components include connectors, sockets, connecting cables, and printed circuit boards (PCB). Devices are products whose raw material molecular structure is altered during factory production and processing. Devices are divided into active devices and discrete devices. The main characteristic of active devices is that they consume electrical energy and require an external power supply. Discrete devices are divided into bipolar junction transistors, field-effect transistors, thyristors, semiconductor resistors, and capacitors. shi

kathrein-werke electrical component parameters

1. Voltage temperature coefficient: Refers to the rate of change of the nominal voltage of a varistor within a specified temperature range, i.e., the relative change in voltage across the varistor when the temperature changes while the current through the varistor remains constant. 2. Current temperature coefficient: Refers to the relative change in current flowing through the varistor when the temperature changes while the voltage across the varistor remains constant. 3. Nominal voltage: Refers to the voltage value across the varistor when a DC current is passed through it. 4. Voltage ratio: Refers to the ratio of the voltage generated by the current of the varistor to the voltage generated by the current of the varistor. 5. Maximum limiting voltage: Refers to the highest voltage value that the varistor can withstand across its terminals. 6. Leakage current: Also known as standby current, it refers to the current flowing through the varistor under specified temperature and maximum DC current conditions. 7. Residual voltage ratio: When the current through the varistor is at a certain value, the voltage generated across its terminals is called the residual voltage for that current value. The residual voltage ratio is the ratio of the residual voltage to the nominal voltage. 8. Surge current capacity: Also known as surge current, it refers to the maximum pulse (peak) current value allowed to pass through the varistor under specified conditions (specified time intervals and number of times, applying standard impulse current). 9. Static capacitance: Refers to the inherent capacitance of the varistor itself. 10. Insulation resistance: Refers to the resistance value between the leads (pins) of the varistor and the insulated surface of the resistor body. 16. Voltage nonlinearity coefficient: Refers to the ratio of the static resistance value to the dynamic resistance value of the varistor under a given applied voltage.

kathrein-werke electrical component requirements

1、Commonly used copper and aluminum rods for power cables are drawn at ambient temperature through one or more drawing dies using a wire drawing machine, reducing their cross-sectional area, increasing their length, and improving their strength. Wire drawing is the first process in wire and cable manufacturing, and the key process parameter is die matching. 2、Copper and aluminum single wires are heated to a specific temperature to improve toughness and reduce strength through recrystallization, meeting the requirements for conductive cores in wires and cables. The key to the annealing process is to prevent oxidation of the copper wires. 3、To improve the flexibility of power cables for easier installation, the conductive core is made by stranding multiple single wires. Stranding methods are classified into regular stranding and irregular stranding. Irregular stranding includes bunch stranding, concentric compound stranding, and special stranding. To reduce the occupied area and geometric dimensions of the power cable, compacted stranding is used during conductor stranding, transforming the standard circular shape into semi-circular, sector-shaped, tile-shaped, and compacted circular shapes. This type of conductor is primarily used in power cables. 4、Plastic power cables mainly use extruded solid insulation layers. The tolerance of the insulation thickness is a key indicator of the extrusion process quality. Most product structural dimensions and their tolerances are clearly specified in standards. The surface of the plastic insulation layer must be smooth, free from roughness, scorching, or impurities. The cross-section of the insulation layer must be dense and robust, with no visible pinholes or bubbles. 5、Multi-core power cables are generally stranded into a circular shape to ensure form stability and reduce the overall cable profile. The stranding mechanism is similar to conductor stranding, but due to the larger lay length, non-back-twist methods are mostly used. Technical requirements for cabling include: preventing irregularly shaped insulated cores from overturning and causing cable twisting, and avoiding damage to the insulation layer. During cabling, two additional processes are usually performed: filling, to ensure the cable remains round and stable after cabling; and binding, to keep the cable core tight. 6、To protect the insulated cores from damage by the armor, an appropriate inner sheath is required. Inner sheaths are classified into extruded inner sheaths (separator sleeves) and wrapped inner sheaths (bedding layers). Wrapped bedding layers replace binding tapes and are applied simultaneously with the cabling process. 7、For power cables installed underground that may withstand certain positive pressure, an internal steel tape armor structure can be selected. For installations subject to both positive pressure and tensile forces (such as in water, vertical shafts, or soil with significant elevation changes), a structure with internal steel wire armor should be chosen. 8、The outer sheath is the structural component that protects the cable's insulation layer from environmental corrosion. Its main functions are to enhance the mechanical strength of the power cable, provide resistance to chemical corrosion, moisture, water ingress, and flame propagation. Depending on specific requirements, plastic sheaths are directly extruded onto the cable using an extruder.

kathrein-werke electrical component reliability

1. Influence of environment on relay reliability: Relays have the highest mean time between failures when operating under GB and SF conditions. 2. Influence of quality grade on relay reliability: The quality grade of a relay has a significant impact on its reliability performance. 3. Influence of contact configuration on relay reliability: The contact configuration of a relay also affects its reliability. Single-throw relays have higher reliability than double-throw relays with the same number of poles, and reliability gradually decreases as the number of poles increases. The mean time between failures for a single-pole single-throw relay is higher than that of a four-pole double-throw relay. 4. Influence of structural type on relay reliability: There are many types of relay structures, and different types affect reliability. 5. Influence of temperature on relay reliability: Relays operate within a certain temperature range. As the temperature rises, the mean time between failures of the relay gradually decreases. 6. Influence of operating rate on relay reliability: As the operating rate of the relay increases, the mean time between failures basically shows an exponential downward trend. Therefore, if the circuit design requires a very high operating rate for the relay, careful inspection of the relay is necessary during circuit maintenance to replace it in time. 13. Influence of current ratio on relay reliability: The so-called current ratio is the ratio of the operating load current of the relay to its rated load current. The current ratio has a significant impact on relay reliability. Therefore, loads with higher rated currents should be selected during circuit design to lower the current ratio, ensuring that the reliability of the relay and the entire circuit is not reduced by fluctuations in operating current.

Weidou Intelligent Technology specializes in selling German kathrein-werke connectors, kathrein-werke switches, kathrein-werke relays, kathrein-werke controllers, kathrein-werke plugs, kathrein-werke sensors, kathrein-werke resistors, kathrein-werke capacitors, kathrein-werke buses, kathrein-werke modules, kathrein-werke cables, kathrein-werke power supplies, kathrein-werke interfaces, kathrein-werke gateways, kathrein-werke circuit breakers, kathrein-werke original imports from Germany. Welcome customers to inquire and order.