Scame electrical components Germany Scame model Scame price

Scame electrical component is a transducer that converts guided waves propagating on a transmission line into electromagnetic waves propagating in an unbounded medium (usually free space), or performs the reverse conversion. It is the component used in radio equipment to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, which use electromagnetic waves to transmit information, all rely on antennas for operation. In addition, in terms of transmitting energy using electromagnetic waves, non-signal energy radiation also requires antennas. General antennas possess reciprocity, meaning the same antenna can be used as both a transmitting antenna and a receiving antenna. The basic characteristic parameters of the same antenna for transmission or reception are identical. This is the reciprocity theorem of antennas. We know that radio equipment such as communication, radar, navigation, broadcasting, and television devices all transmit information via radio waves and require the radiation and reception of radio waves. In radio equipment, the device used to radiate and receive radio waves is called an antenna. The antenna provides the necessary coupling between the transmitter or receiver and the medium through which radio waves propagate. Like the transmitter and receiver, the antenna is also an important component of radio equipment.

Scame electrical component characteristics

The characteristics of an inductor are exactly opposite to those of a capacitor; it has the property of blocking alternating current while allowing direct current to pass smoothly. The resistance when a DC signal passes through the coil is simply the resistance of the wire itself, resulting in a very small voltage drop; when an AC signal passes through the coil, a self-induced electromotive force is generated across the coil terminals. The direction of this self-induced electromotive force is opposite to that of the applied voltage, hindering the passage of AC. Therefore, the characteristic of an inductor is to pass DC and block AC; the higher the frequency, the greater the coil impedance. Inductors often work together with capacitors in circuits to form LC filters, LC oscillators, etc. Additionally, people utilize the properties of inductance to manufacture chokes, transformers, relays, and other components. Passing DC: refers to the inductor presenting a conductive state to DC. If the resistance of the inductor coil is ignored, DC can pass through the inductor "unimpeded." For DC, the coil's own resistance offers very little obstruction, so it is often neglected in circuit analysis. Blocking AC: When AC passes through the inductor coil, the inductor presents an obstruction to the AC. This obstruction to AC is the inductive reactance of the coil.

Scame electrical component classification

Fuses can be divided into high-voltage fuses and low-voltage fuses based on operating voltage. Based on the protected object, they can be classified as 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, among others. Based on structure, they can be divided into open-type, semi-enclosed, tube-type, and expulsion fuses. Open-type 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. They produce significant noise and light in the atmosphere when interrupting current. Semi-enclosed fuses have their fusible element mounted on a porcelain frame, inserted into a porcelain box with metal sockets at both ends, 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. It is then inserted into a base or directly connected into the circuit for use. 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 improving the breaking capacity, hence it is also called 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, the purpose of which is to improve arc-extinguishing performance. Since quartz sand, vacuum, and SF11 gas all have good insulation properties, this type of fuse is suitable for both low voltage and high voltage applications. Expulsion fuses have the fusible element installed in an insulating tube made of solid gas-generating material. Solid gas-generating materials can include electrical anti-white cardboard or organic glass materials. When a 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 ejects the ionized gas and arc from both ends of the tube, emitting intense sound and light, and extinguishing the arc at the zero-crossing of the AC current to interrupt the flow. 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.

Scame electrical component classification

1, Fusible resistor: Also known as a fuse resistor, it serves the dual function of a resistor and a fuse under normal conditions. When a circuit fault causes its power consumption to exceed the rated power, it will melt like a fuse, disconnecting the connected circuit. Fuse resistors generally have small resistance values and low power ratings. 7, Sensitive resistor: Refers to a resistor whose resistance value is sensitive to certain physical quantities (such as temperature, humidity, light intensity, voltage, mechanical force, and gas concentration). When these physical quantities change, the resistance value of the sensitive resistor changes accordingly, presenting different resistance values. Based on sensitivity to different physical quantities, sensitive resistors can be classified into thermistors, hygristors, photoresistors, varistors, force-sensitive resistors, magnetoresistors, and gas-sensitive resistors. The materials used for sensitive resistors are almost all semiconductor materials, so these resistors are also called semiconductor resistors. The resistance of a thermistor changes with temperature; if the resistance decreases as temperature rises, it is a negative temperature coefficient (NTC) thermistor. NTC thermistors are widely used and can be further divided into standard NTC thermistors, voltage-stabilizing NTC thermistors, and temperature-measuring NTC thermistors. A photoresistor's resistance value changes with the intensity of incident light; when incident light increases, the resistance of the photoresistor decreases, and when incident light weakens, the resistance value increases.

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