ettinger electrical components Germany ettinger model ettinger price

ettinger electrical components are devices that use the principle of electromagnetic induction to change AC voltage. 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, corner transformers, high-current transformers, excitation transformers, etc.

ettinger electrical component structure

The basic structure of a voltage transformer is very similar to that of a transformer; it also has two windings, one called the primary winding and the other called the secondary winding. Both windings are mounted on or wound around the iron core. There is insulation between the two windings and between the windings and the iron core, providing electrical isolation between the two windings and between the windings and the iron core. During operation, the primary winding N1 is connected in parallel to the line, and the secondary winding N9 is connected in parallel to instruments or relays. Therefore, when measuring voltage on high-voltage lines, although the primary voltage is very high, the secondary side is low voltage, ensuring the safety of operators and instruments.

ettinger electrical component applications

The most widely used type of motor in various applications is the AC asynchronous motor. It is easy to use, reliable in operation, low in price, and robust in structure, but it has a low power factor and speed regulation is difficult. Synchronous motors are commonly used for high-capacity, low-speed prime movers. Synchronous motors not only have a high power factor, but their speed is independent of load size and depends only on the grid frequency. They operate relatively stably. DC motors are often used in applications requiring wide-range speed regulation. However, they have commutators, complex structures, high prices, difficult maintenance, and are not suitable for harsh environments. With the development of power electronics technology, AC motor speed control technology is becoming mature, equipment prices are decreasing, and they have begun to be applied. The maximum output mechanical power that a motor can handle under a specified duty cycle without causing overheating is called its rated power; attention should be paid to the ratings on the nameplate during use. When the motor is running, care should be taken to match the load characteristics with the motor characteristics to avoid runaway or stalling. Motors can provide a wide range of power, from milliwatts to tens of thousands of kilowatts. The use and control of motors are very convenient, featuring capabilities such as self-starting, acceleration, braking, reversal, and holding. Generally, when a motor's speed is regulated, its output power changes with the speed.

ettinger electrical component classification

Plug-in fuses are often used at the end of lines for short-circuit protection of distribution branch circuits or electrical equipment. Screw-type fuses have a fuse indicator on the upper cap of the fusible element. Once the fusible element melts, the indicator pops out immediately and can be observed through the glass hole on the ceramic cap. They are often used in machine tool electrical control equipment. Screw-type fuses. Enclosed fuses are divided into filled fuses and non-filled fuses. Filled fuses generally use square ceramic tubes containing quartz sand and the fusible element, offering strong breaking capacity. Non-filled hermetic fuses enclose the fusible element in a sealed cylinder, with slightly lower breaking capacity. Fast-acting fuses are mainly used for short-circuit protection of semiconductor rectifier elements or rectifier devices. Since semiconductor components have very low overload capacity and can only withstand large overload currents for extremely short periods, short-circuit protection requires fast-acting fusing capability. The structure of fast-acting fuses is basically the same as that of filled enclosed fuses, but the material and shape of the fusible element differ; it uses a silver strip stamped with a V shaped deep groove variable cross-section fusible element. Fast-acting fuses are commonly referred to as "fast fuses," characterized by fast fusing speed, high rated current, strong breaking capacity, stable current-limiting characteristics, and small volume. Self-resetting fuses use sodium metal as the fusible element, which has high electrical conductivity at room temperature. When a short-circuit fault occurs in the circuit, the short-circuit current generates high heat, causing the sodium to vaporize rapidly. The gaseous sodium presents a high-resistance state, thereby limiting the short-circuit current. After the short-circuit current disappears, the temperature drops, and the sodium metal restores its original good conductivity. Self-resetting fuses can only limit short-circuit current and cannot truly disconnect the circuit. Their advantage is that the fusible element does not need to be replaced, allowing for repeated use.

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