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A solid-state
relay (SSR) is an electronic switching device that switches on or off when a
small external voltage is applied across its control terminals. SSRs consist of
a sensor which responds to an appropriate input (control signal), a solid-state
electronic switching device which switches power to the load circuitry, and a
coupling mechanism to enable the control signal to activate this switch without
mechanical parts. The relay may be designed to switch either AC or DC to the
load. It serves the same function as an electromechanical relay, but has no
moving parts.
A solid-state relay (SSR) is an electronic switching
device that switches on or off when a small external voltage is applied across its control terminals.
Three-phase AC solid-state relay (hereinafter referred to as three-phase SSR) is a collection of three single-phase AC solid-state relays, and uses a single input terminal to directly switch the three-phase load, which can easily control three-phase AC motors, heaters, etc. Three-phase load. The three-phase ordinary SSR uses three triacs as the output switch contacts of the A, B, and C three-phases.
Industrial-grade solid state relay is a four-terminal device with two terminals as input terminals and the other two terminals as output terminals. An isolation device is used in the middle to achieve electrical isolation between input and output. Industrial-grade solid state relays can be divided into AC type and DC type according to the type of load power supply. According to the switch type, it can be divided into normally open type and normally closed type. According to the isolation type, it can be divided into hybrid type, transformer isolation type and photoelectric isolation type, with the photoelectric isolation type being the most.
SCR power regulator (abbreviated as: SCR) has been
Called thyristor, power regulator, power regulator, phase regulator, power regulator, etc., it is a stepless power adjustment equipment; it is a control tool for the industrial electric heating industry, energy-saving and environmentally friendly products . For the electric heating system, in order to control the electrolysis heat humanely, we often use cycle regulators and solid state relays in our design. The principle is nothing more than receiving the 4-20ma signal output by the temperature control instrument, and then adjusting the actual output by changing the trigger angle of the internal thyristor conduction angle to achieve the purpose of humanized heating control.
The radiator is used to reduce the heat generated by the operation of the mechanical equipment, so that the components of the mechanical equipment dissipate and cool to increase the operating life of the machine. It is a good thermal conductivity medium attached to heating equipment.
