901 articles
Busbar
A busbar is a low-impedance electrical conductor, typically a copper or aluminum bar, that lets one incoming power source feed many outgoing circuits, used in switchgear, panelboards, and substations.
Bushing (electrical)
An electrical bushing is an insulated structure that carries a high-voltage conductor through a grounded barrier, such as a transformer tank or wall, while insulating it from ground.
C4-FN gas mixture
C4-FN gas mixture is an insulating and arc-quenching gas blending a small share of fluoronitrile C₄F₇N with CO₂ to replace sulfur hexafluoride in high-voltage switchgear.
Cable ampacity
Cable ampacity, a contraction of ampere capacity, is the maximum continuous current a power cable can carry without overheating its insulation, and it depends on the installation environment.
Cable burial
Cable burial is the practice of burying submarine cables in the seabed to protect them from anchors and fishing gear, usually with a sea plow towed behind a cable ship.
Cable cleat
A cable cleat is a device attached to a mounting surface that secures cables at intervals and, where the manufacturer declares it, resists electromechanical forces during a short circuit.
Cable condition monitoring
Cable condition monitoring is the measurement of electrical, thermal, and mechanical quantities on power cables in service, detecting insulation degradation and developing faults so maintenance can be scheduled before failure.
Cable crossing
A cable crossing is a point where a power cable route passes beneath or over an obstacle it cannot run alongside, such as a road, railway, waterway, or another cable.
Cable drum
A cable drum, also called a cable reel, is a cylindrical spool that electrical cable is wound onto for transport, storage, and controlled pay-off during installation.
Cable fault location
Cable fault location is the process of pinpointing where an underground electrical cable has failed, so crews can excavate and repair one spot instead of replacing the whole run.
Cable induced voltage
Cable induced voltage is a voltage induced on a power cable's sheath, screen, or armor by electromagnetic coupling with load currents, and managed through sheath bonding design.
Cable joint
A cable joint, or cable splice, connects separate lengths of power cable and restores the full construction, conductor, insulation, field control, and screen continuity, but is a leading failure point in underground networks.
Cable laying vessel
A cable laying vessel, also called a cable ship or cable layer, is a specialized ship that installs and repairs submarine fiber-optic and high-voltage power cables on the seabed.
Cable recycling
Cable recycling is the recovery of copper, aluminum, and plastics such as PVC from end-of-life insulated wire and power and communication cables, driven chiefly by the high value of the metal content.
Cable sheath earthing
Cable sheath earthing, also called sheath bonding or grounding, is the practice of earthing a power cable's metallic sheath at chosen points, balancing circulating-current losses against standing-voltage hazards through schemes like cross-bonding.
Cable termination
A cable termination is an accessory fitted to the end of an insulated power cable so the conductor can be safely connected to switchgear, transformers, or overhead lines.
Cable trench
A cable trench is an excavated channel in which electrical power or communication cables are laid and then backfilled, the standard pathway for underground circuits.
California Independent System Operator
The California Independent System Operator (California ISO or CAISO) is a nonprofit corporation managing electricity flow on California's high-voltage grid and operating its wholesale energy market since 1998.
Calpine
Calpine is an American power generation and retail energy company headquartered in Houston, Texas, with more than 27,000 MW of natural gas, geothermal, and solar capacity across North America.
Capacitor bank
A capacitor bank is an assembly of power capacitor units connected in series or parallel to deliver reactive power, improving voltage profiles and power factor in power systems.
Capacitor bank switching
Capacitor bank switching is the energizing and de-energizing of shunt capacitor banks, unloaded lines, and cables on AC systems, managed to control restrike overvoltages and inrush currents.
Capacitor voltage transformer
A capacitor voltage transformer (CVT), also called a coupling capacitor voltage transformer, measures high transmission voltages via a capacitor divider and can carry power-line carrier signals.
Capital Power
Capital Power is an Edmonton-based independent power producer created in 2009 by EPCOR Utilities, owning about 12 GW of gas, renewable, and battery capacity across 35 facilities.
Caribbean Utilities
Caribbean Utilities (CUC) is the sole electric utility of Grand Cayman, serving about 35,000 customers since 1966 and owned roughly 60% by Canada's Fortis Inc.
Cascaded H-bridge converter
The cascaded H-bridge (CHB) converter is a multilevel power converter that synthesizes a medium-voltage AC output from series-connected H-bridge cells, used mainly in motor drives, STATCOMs, and large solar plants.
Cascading failure (power system)
A cascading failure in a power system is the uncontrolled successive loss of equipment such as transmission lines or generators, where each failure overloads others until the outage stops or becomes a widespread blackout.
CECONY
CECONY, formally the Consolidated Edison Company of New York, is a regulated utility delivering electricity, natural gas, and steam in New York City and Westchester County.
CEI 23-50
CEI 23-50 is the Italian standard for household plugs and socket-outlets, issued by the Comitato Elettrotecnico Italiano, defining the Type L plug in 10 A and 16 A ratings.
Celesc
Celesc (Centrais Elétricas de Santa Catarina) is a Brazilian electric utility controlled by the state of Santa Catarina. Created in 1955, it serves over 3 million customers.
Çelikler Yatırım Holding
Çelikler Yatırım Holding, also known as Çelikler Holding, is a Turkish family-founded conglomerate headquartered in Ankara, founded in 1958 and among Turkey's largest electricity generators with 2,769 MW of installed capacity.