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2. Relay - Wikipedia

   en.wikipedia.org/wiki/Relay

   A relay allows circuits to be switched by electrical equipment: for example, a timer circuit with a relay could switch power at a preset time. For many years relays were the standard method of controlling industrial electronic systems. A number of relays could be used together to carry out complex functions (relay logic). The principle of relay ...

3. ANSI device numbers - Wikipedia

   en.wikipedia.org/wiki/ANSI_device_numbers

   Today, microprocessor-based relays can perform many protective functions in one device. [1] When one device performs several protective functions, it is typically denoted "11" by the standard as a "Multifunction Device", but ANSI Device Numbers are still used in documentation like single-line diagrams or schematics to indicate which specific ...

4. Vibrator (electronic) - Wikipedia

   en.wikipedia.org/wiki/Vibrator_(electronic)

   A pair of Heathkit-brand vibrators manufactured by James Electronics, with octal bases. The one on the right has been stripped of the aluminum cap so the inner components can be seen. An electro-mechanical vibrator from the Grass Instrument Co. Used as part of a chopper amplifier in polygraph input amplifier.

5. Electromechanics - Wikipedia

   en.wikipedia.org/wiki/Electromechanics

   It was an electromechanical relay-based device; cycles took seconds. In 1968 electromechanical systems were still under serious consideration for an aircraft flight control computer, until a device based on large scale integration electronics was adopted in the Central Air Data Computer.

6. List of IEC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_IEC_standards

   IEC 60255 Measuring relays and protection equipment; IEC 60258 Direct acting recording electrical measuring instruments and their accessories; IEC 60261 Sealing test for pressurized waveguide tubing and assemblies; IEC 60263 Scales and sizes for plotting frequency characteristics and polar diagrams; IEC 60264 Packaging of winding wires

7. High-voltage interface relay - Wikipedia

   en.wikipedia.org/wiki/High-voltage_interface_relay

   A common design principle of these devices is a special galvanic isolation module between the input (control) and the output (switching) circuits of the relay. Interface relays are widely used in control and protection systems of high voltage (10-100 kV) electronic and electrophysical equipment and in high power installations. [3] [5] [6]