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texelco electrical component is a high-power electrical component, also known as a thyristor. It has the advantages of small size, high efficiency, and long service life. In automatic control systems, it can serve as a high-power drive device, enabling low-power control elements to control high-power equipment. It is widely used in AC/DC motor speed control systems, power regulation systems, and servo systems. Thyristors are divided into unidirectional thyristors and bidirectional thyristors. Bidirectional thyristors are also called triac bidirectional thyristors, abbreviated as TRIAC. A bidirectional thyristor is structurally equivalent to two unidirectional thyristors connected in reverse; this type of thyristor has bidirectional conduction capability. Its on/off state is determined by the gate G. Applying a positive pulse (or negative pulse) to the gate G enables forward (or reverse) conduction. The advantages of this device are simple control circuitry and no reverse voltage withstand issue, making it particularly suitable for use as an AC contactless switch.

texelco electrical component types

Common thermocouples can be divided into two major categories: standard thermocouples and non-standard thermocouples. Standard thermocouples refer to those for which national standards specify the relationship between thermoelectric potential and temperature, permissible errors, and have a unified standard graduation table; matching display instruments are available for selection. Non-standardized thermocouples are inferior to standardized thermocouples in terms of usage range or magnitude, generally lack a unified graduation table, and are mainly used for measurements in certain special occasions. Theoretically, any two different conductors (or semiconductors) can be configured as a thermocouple, but as a practical temperature-sensing element, it must meet multiple requirements. To ensure reliability in engineering technology and sufficient measurement accuracy, not all materials can form thermocouples. The basic requirements for thermocouple electrode materials are generally: 1, stable thermoelectric properties within the temperature measurement range, not changing with time, sufficient physical and chemical stability, and resistance to oxidation or corrosion; 2, small resistance temperature coefficient, high conductivity, and low specific heat; 3, large thermoelectric potential generated during temperature measurement, with a linear or near-linear single-valued functional relationship between thermoelectric potential and temperature; 14, good material reproducibility, high mechanical strength, simple manufacturing process, and low cost.

texelco electrical component principle

A DC power source has two electrodes, positive and negative. The positive electrode has a higher potential, and the negative electrode has a lower potential. When the two electrodes are connected to a circuit, they maintain a constant potential difference between the two ends of the circuit, thereby forming a current from the positive electrode to the negative electrode in the external circuit. Relying solely on the difference in water levels cannot maintain a steady water flow, but using a pump to continuously move water from a lower level to a higher level can maintain a certain water level difference and form a steady water flow. Similarly, relying solely on the electrostatic field generated by electric charges cannot maintain a steady current. However, with a DC power source, non-electrostatic action (referred to as "non-electrostatic force") can be used to return positive charges from the negative electrode at a lower potential through the interior of the power source to the positive electrode at a higher potential, thereby maintaining the potential difference between the two electrodes and forming a steady current. Therefore, a DC power source is an energy conversion device that converts other forms of energy into electrical energy to supply the circuit, maintaining the steady flow of current.

texelco electrical component classification

Cables include power cables, control cables, compensation cables, shielded cables, high-temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, and more. They are all composed of single-strand or multi-strand conductors and insulation layers, used to connect circuits, electrical appliances, etc. Cables can be divided into DC cables and AC cables according to the photovoltaic power station system, and are classified into DC cables and AC cables based on application and operating environment.

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