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Industrial pressure switches may have a calibrated scale and pointer to show the set point of the switch. A pressure switch will have a hysteresis, that is, a differential range around its setpoint, known as the switch's deadband, inside which small changes of pressure do not influence the state of the contacts. Some types allow adjustment of ...
A high-voltage disconnect switch used in an electrical substation. Such switches are used mostly to isolate circuits, and usually cannot break load current. High-voltage switches are available for the highest transmission voltages, up to 1 million volts. This switch is gang-operated so that all three phases are interrupted at the same time.
High-voltage switchgear A section of a large switchgear panel. Tram switchgear This circuit breaker uses both SF 6 and air as insulation.. In an electric power system, a switchgear is composed of electrical disconnect switches, fuses or circuit breakers used to control, protect and isolate electrical equipment.
A circuit that switches on and off at a high rate, used either for power conversion or to convert a DC signal to a more easily processed AC signal. circle diagram A representation of the voltage and current characteristics of an electrical machine; the plot traces out a circle or part of a circle. circuit breaker panel
An power converter with semiconductor valve devices. [ab] semiconductor switch An electronic power switch with semiconductor valve devices. [ac] semiconductor valve device An electronic valve device which is a semiconductor device. sequential phase control Asymmetrical phase control such that the delay angles are determined according to a given ...
750 kV high-voltage switchgear. High-voltage switchgear is any switchgear used to connect or disconnect a part of a high-voltage power system.This equipment is essential for the protection and safe operation, without interruption, of a high voltage power system, and is important because it is directly linked to the quality of the electricity supply.
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The power transistor(s) in a switching voltage regulator, such as a power supply unit, are used like a switch to alternately let power flow and block power from flowing. Hall switches are a type of Hall sensor that combine the analog Hall effect with threshold detection to produce a magnetically-operated switch.