901 articles
TGK-2
TGK-2 (ПАО «ТГК-2», Territorial Generating Company No. 2) is a Russian heat and electric power company headquartered in Yaroslavl, majority owned by the Russian state since 2023.
Thermal Power Plant No. 4
Thermal Power Plant No. 4 (ДЦС-4) is a coal-fired combined heat and power plant in Ulaanbaatar, Mongolia, and the country's largest power plant, operating since 1983.
Thermal Power Plants Holding
Thermal Power Plants Holding (TPPH) is Iran's state holding company under the Ministry of Energy, headquartered in Tehran, managing thermal plants that supply about 93% of the country's electricity.
Three-phase electric power
Three-phase electric power is alternating current carried on three conductors with voltages shifted 120 degrees, delivering constant power and needing no return conductor for balanced loads.
Three-phase inverter
A three-phase inverter is a power-electronic converter that converts DC input into three-phase AC output, used for industrial motor drives, solar and wind generation, and battery storage.
Three-phase transformer
A three-phase transformer changes the voltage of three-phase alternating current, built as one unit on a shared core or as a bank of three single-phase transformers.
Three-winding transformer
A three-winding transformer is a power transformer with primary, secondary, and tertiary windings per phase, connecting three voltage levels or supplying station auxiliaries and voltage control.
Thumper (cable fault testing)
A thumper is a high-voltage surge generator that locates faults in underground power cables by arcing at the fault, producing an audible thump crews pinpoint from the surface.
Thyristor valve
A thyristor valve is the complete engineered assembly of series-connected thyristors with gating, grading, and cooling that performs one switching function in an HVDC converter station.
Thyristor-controlled reactor
A thyristor-controlled reactor (TCR) is a shunt inductor in series with back-to-back thyristors, whose current is varied continuously and forms the core of most static var compensators.
Thyristor-controlled series capacitor
A thyristor-controlled series capacitor (TCSC) is a series-connected FACTS device that varies the reactance of an AC transmission line, used for power flow control, damping power oscillations, and mitigating subsynchronous resonance.
Thyristor-switched capacitor
A thyristor-switched capacitor (TSC) is a shunt capacitor bank switched fully on or off by a bidirectional thyristor valve, giving fast, near-transient-free reactive power control in static var compensators.
Tianshan converter station
Tianshan converter station (天山换流站), formerly Hami South, is the sending-end station of the 8,000 MW Hami–Zhengzhou ±800 kV UHVDC line in Hami, Xinjiang, in commercial operation since 2014.
Tianshengqiao converter station
Tianshengqiao converter station (天生桥换流站), also called Mawo, is the ±500 kV rectifier terminal of China's 960 km Tian-Guang HVDC link, transmitting Tianshengqiao hydropower to Guangzhou.
TNB Genco
TNB Genco, formally TNB Power Generation Sdn. Bhd., is the wholly owned power generation subsidiary of Malaysia's Tenaga Nasional Berhad and the largest single generator in Peninsular Malaysia.
Toledo Edison
The Toledo Edison Company is an investor-owned electric distribution utility headquartered in Toledo, Ohio, serving ten northwest Ohio counties and regulated by the Public Utilities Commission of Ohio as a subsidiary of FirstEnergy Corp.
Ton tower
The ton tower, or Tonnenmast, is a lattice steel transmission tower whose three cross-arms form a barrel-like silhouette, the tallest and narrowest of Germany's standard 380 kV tower forms.
Toroidal transformer
A toroidal transformer is a mains or signal transformer wound on a doughnut-shaped steel core with no air gap, giving 95–98% efficiency and low hum in audio and medical equipment.
Toronto Hydro
Toronto Hydro is the municipal electricity distributor for Toronto, Ontario, delivering power to more than 3 million residents and businesses. Founded in 1911, it is Canada's largest municipal electricity distribution company.
Torrent Power
Torrent Power is an Indian private-sector integrated power utility of the Torrent Group, serving over 4.31 million customers across 12 cities with 6,494 MW of generation capacity.
Touch and step voltage
Touch and step voltage are the shock quantities used to judge whether a grounding system protects people during an earth fault, with limits set by IEEE Std 80 and IEC 60479-1.
Tower earthing
Tower earthing, also called tower grounding, is the system of electrodes and buried conductors that bonds a transmission tower to the earth so lightning current is safely dissipated.
Tower erection
Tower erection is the stage of overhead transmission line construction in which tower steel is assembled and raised on its foundations, using piecemeal, gin pole, crane, or helicopter methods.
Tower foundation
A tower foundation is the buried structure that anchors a transmission tower to the ground, designed mainly for uplift, and accounting for 15% to 35% of an overhead line's cost.
Traction transformer
A traction transformer, also called a railway traction or locomotive transformer, converts high railway supply voltage into lower voltages for train propulsion and auxiliary systems like lighting and HVAC.
Trans-Allegheny Interstate Line Company
The Trans-Allegheny Interstate Line Company (TrAILCo) is an electric transmission company formed in October 2006 by Allegheny Energy to build the high-voltage TrAIL transmission line, and is now a FirstEnergy subsidiary.
TransAlta USA
TransAlta USA is the United States operations platform of TransAlta Corporation, a Canadian power generator, running 12 facilities across nine states, anchored by the Centralia plant in Washington.
Transformer
A transformer, also called an electrical transformer, is a static device that transfers AC electric energy between circuits by magnetic induction, changing voltage levels to transmit power efficiently.
Transformer differential protection
Transformer differential protection is a unit protection scheme for power transformers that compares incoming and outgoing currents and trips when the difference indicates an internal fault.
Transformer oil
Transformer oil, also called insulating oil, is the liquid used inside transformers to provide electrical insulation and transfer heat from the core and windings to the cooling system.