Power relay function and principle

A power relay is a device that can make a transition in one or more electrical output circuits when the input (or excitation) meets certain specified conditions. It can be used in a neutral point direct grounding system as a directional component for zero sequence current protection.

Micro power relay: When the open circuit voltage of the contact is 28V DC, the rated load current (resistance) of the contact is 0.1A; 0.2A relay; weak power relay: when the contact open circuit voltage is DC 28V, the contact rated load Current (resistance) is 0.5A; 1A relay; medium power relay: when the contact open circuit voltage is DC 28V, the contact rated load current (resistance) is 2A; 5A relay; high power relay: when contact When the open circuit voltage is 28V DC, the contact rated load current (resistance) is 10A; 15A; 20A; 25A; 40A... relay.

Semiconductor Plastic Package

Semiconductor Plastic Package.Refers to the material whose conductivity is between the conductor and the insulator at room temperature. Semiconductors have a wide range of applications in radios, televisions, and temperature measurement. Diodes are semiconductor devices. Semiconductor refers to a material whose conductivity can be controlled and can range from insulator to conductor. Regardless of technology or economic development, the importance of semiconductors is enormous. Most of today`s electronic products, such as computers, mobile phones or digital recorders, have core units that are very closely related to semiconductors. The common semiconductor materials are silicon, germanium, gallium arsenide, etc., and silicon is a kind of most influential one among various semiconductor materials in commercial applications.

Semiconductor Plastic Package,Semiconductor Package,Silicon Transistor,Bi Directions Thyristor

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