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2. High-voltage interface relay - Wikipedia

   en.wikipedia.org/wiki/High-voltage_interface_relay

   High voltage interface relays, a.k.a., interface relays: [1] [2] or coupling relays or insulating interfaces [3] [4] is a special class of electrical relays designed to provide informational and electrical compatibility between functional components isolated from each other and not allowing for a direct connection due to a high difference of potentials.

3. List of IEC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_IEC_standards

   IEC 60644 Specification for high-voltage fuse-links for motor circuit applications; IEC 60645 Electroacoustics – Audiometric equipment; IEC 60648 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation; IEC 60651 Sound level meters (Withdrawn, replaced by IEC 61672-1:2002 and IEC 61672-2:2003)

4. Power system protection - Wikipedia

   en.wikipedia.org/wiki/Power_system_protection

   Current and voltage transformers to step down the high voltages and currents of the electrical power system to convenient levels for the relays to deal with; Protective relays to sense the fault and initiate a trip, or disconnection, order; Circuit breakers or RCDs to open/close the system based on relay and autorecloser commands

5. High-voltage cable - Wikipedia

   en.wikipedia.org/wiki/High-voltage_cable

   High voltage is defined as any voltage over 1000 volts. [3] Those of 2 to 33 kV are usually called medium voltage cables, those over 50 kV high voltage cables.. Modern HV cables have a simple design consisting of a few parts: the conductor, the conductor shield, the insulation, the insulation shield, the metallic shield, and the jacket.

6. Pothead - Wikipedia

   en.wikipedia.org/wiki/Pothead

   A pothead is a type of insulated electrical terminal used for transitioning between overhead line and underground high-voltage cable or for connecting overhead wiring to equipment like transformers. [1] Its name comes from the process of potting or encapsulation of the conductors inside the terminal's insulating bushing.

7. Insulator (electricity) - Wikipedia

   en.wikipedia.org/wiki/Insulator_(electricity)

   Wire insulated with felted asbestos was used in high-temperature and rugged applications from the 1920s. Wire of this type was sold by General Electric under the trade name "Deltabeston." [6] Live-front switchboards up to the early part of the 20th century were made of slate or marble.

8. 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 ...

9. Recloser - Wikipedia

   en.wikipedia.org/wiki/Recloser

   Single Wire Earth Return Network Protection: SWER network design topology is discouraged in modern electrical engineering due to safety reasons, but due to cost savings it is sometimes deployed. Single Phase Reclosers can be used to improve safety on these lines during fault events. Single Phase Recloser Single Phase Laterals Overcurrent Protection