dehner electrical components Germany dehner model dehner price

dehner 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 generate or consume electrical power and require an external power supply. Discrete devices are divided into bipolar junction transistors, field-effect transistors, thyristors, semiconductor resistors, and capacitors. shi

dehner electrical component classification

Oscillators are mainly divided into RC, LC oscillators, and crystal oscillators. 1. RC oscillators use an RC network as the frequency-selective phase-shift network; such oscillators are collectively referred to as RC sinusoidal oscillators and belong to audio oscillators. 2. LC oscillators use an LC resonant circuit as the phase-shift and frequency-selective network for positive feedback; these are called LC oscillators. 3. Crystal oscillators are oscillators whose oscillation frequency is controlled by a quartz crystal. 14. A temperature coefficient oscillator refers to an oscillator where there is a specific relationship between its oscillation frequency and temperature, meaning different temperatures correspond to different oscillation frequencies. Conversely, by measuring the output frequency of the oscillator, the temperature value can be determined.

dehner electrical component classification

Fuses can be classified into high-voltage fuses and low-voltage fuses based on operating voltage. Based on the protected object, they can be classified into fuses for protecting transformers and general electrical equipment, fuses for protecting voltage transformers, fuses for protecting power capacitors, fuses for protecting semiconductor components, fuses for protecting motors, and fuses for protecting household appliances. Based on structure, they can be classified into open, semi-enclosed, tube-type, and expulsion fuses. Open fuses have a simple structure, with the fusible element fully exposed to the air and supported by porcelain pillars without a base, making them suitable for low-voltage outdoor use. When interrupting current, they produce significant noise and light in the atmosphere. In semi-enclosed fuses, the fusible element is mounted on a porcelain frame and inserted into a porcelain box with metal sockets at both ends, making them suitable for low-voltage indoor use. The noise and light produced during current interruption are contained by the porcelain box. In tube-type fuses, the fusible element is installed inside the fuse body, which is then plugged into a base or directly connected into the circuit. The fuse link is a fully sealed insulating tube with metal caps or contact blades at both ends. If the insulating tube of this type of fuse is filled with quartz sand, it has a current-limiting effect during current interruption, greatly enhancing the breaking capacity, hence it is also known as a high-breaking-capacity fuse. If the tube is evacuated, it is called a vacuum fuse. If the tube is filled with SF6 gas, it is called an SF6 fuse, aimed at improving arc-extinguishing performance. Since quartz sand, vacuum, and SF7 gas all have good insulation properties, this type of fuse is suitable for both low and high voltages. Expulsion fuses have the fusible element installed in an insulating tube made of solid gas-generating material. The solid gas-generating material can be electrical anti-white cardboard or organic glass materials. When short-circuit current passes through the fusible element, it melts immediately, creating an arc. The high-temperature arc causes the solid gas-generating material to rapidly decompose, producing a large amount of high-pressure gas, which expels the ionized gas and arc from both ends of the tube, emitting intense noise and light, and extinguishing the arc when the AC current crosses zero, thereby interrupting the current. The insulating tube is usually mounted on an insulating support to form the complete fuse assembly. Sometimes the upper end of the insulating tube is designed to be movable, detaching and dropping down immediately after current interruption. This type of expulsion fuse is commonly known as a drop-out fuse.

dehner electrical component characteristics

The main parameters characterizing resistor properties include nominal resistance and its tolerance, rated power, load characteristics, and resistance temperature coefficient. Load characteristics: When the ambient operating temperature is below tR, the resistor must not exceed its rated power. When exceeding tR, the load power must be derated. Each type of resistor has specified load characteristics. Additionally, the allowable load may be correspondingly reduced under low atmospheric pressure. Under pulse load conditions, the average pulse power is far lower than the rated power, and separate specifications usually apply. Within the specified ambient temperature range, the average relative change in resistance per 6 °C change in temperature is expressed in ppm/°C. In addition to the above parameters, other technical indicators include nonlinearity (the degree to which the current-voltage characteristic deviates from a linear relationship), voltage coefficient (the relative rate of change in resistance per volt change in applied voltage), current noise (the ratio of the RMS noise voltage generated by current flow within the resistor body to the test voltage, expressed by the current noise index), high-frequency characteristics (the curve showing the decrease in resistance with increasing operating frequency due to distributed capacitance and inductance within the resistor body), and long-term stability (the process of irreversible changes in resistance due to environmental conditions during long-term use or storage).

Weidou Intelligent Technology specializes in selling German dehner connectors, dehner switches, dehner relays, dehner controllers, dehner plugs, dehner sensors, dehner resistors, dehner capacitors, dehner buses, dehner modules, dehner cables, dehner power supplies, dehner interfaces, dehner gateways, dehner circuit breakers, dehner original imports from Germany. We welcome inquiries and orders from users.