Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines which facilitate this movement are known as a transmission network. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is known as the "power grid" in North America, or just "the grid". In the United Kingdom, India, Malaysia and New Zealand, the network is known as the "National Grid".
Electric power distribution is the final stage in the delivery of electric power; it carries electricity from the transmission system to individual consumers. Distribution substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2 kV and 35 kV with the use of transformers. Primary distribution lines carry this medium voltage power to distribution transformers located near the customer's premises. Distribution transformers again lower the voltage to the utilization voltage used by lighting, industrial equipment or household appliances. Often several customers are supplied from one transformer through secondary distribution lines. Commercial and residential customers are connected to the secondary distribution lines through service drops. Customers demanding a much larger amount of power may be connected directly to the primary distribution level or the subtransmission level.
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels. A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages.
Power engineering, also called power systems engineering, is a subfield of electrical engineering that deals with the generation, transmission, distribution and utilization of electric power, and the electrical apparatus connected to such systems. Although much of the field is concerned with the problems of three-phase AC power – the standard for large-scale power transmission and distribution across the modern world – a significant fraction of the field is concerned with the conversion between AC and DC power and the development of specialized power systems such as those used in aircraft or for electric railway networks. Power engineering draws the majority of its theoretical base from electrical engineering.
A phasor measurement unit (PMU) is a device used to estimate the magnitude and phase angle of an electrical Phasor quantity like voltage or current in the electricity grid using a common time source for synchronization. Time synchronization is usually provided by GPS and allows synchronized real-time measurements of multiple remote measurement points on the grid. PMUs are capable of capturing samples from a waveform in quick succession and reconstruct the Phasor quantity. The resulting measurement is known as a synchrophasor. These devices can also be used to measure the frequency in the power grid. A typical commercial PMU can report measurements with very high temporal resolution in the order of 30-60 measurements per second. This helps engineers in analyzing dynamic events in the grid which is not possible with traditional SCADA measurements that generate one measurement every 2 or 4 seconds. Therefore, PMUs equip utilities with enhanced monitoring and control capabilities and are considered to be one of the most important measuring devices in the future of power systems. A PMU can be a dedicated device, or the PMU function can be incorporated into a protective relay or other device.
Kerala State Electricity Board Ltd (KSEBLtd) is a public sector agency under the Government of Kerala, India, that generates,transmits and distributes the electricity supply in the state. Established in 1957, the agency comes under the authority of the Department of Power.
In lossless power transmission, a supergrid with hydrogen is an idea for combining very long distance electric power transmission with liquid hydrogen distribution, to achieve superconductivity in the power lines. The hydrogen is both a distributed fuel and a cryogenic coolant for the power lines, rendering them superconducting. The concept's advocates describe it as being in a "visionary" stage, for which no new scientific breakthrough is required but which requires major technological innovations before it could progress to a practical system. A system for the United States is projected to require "several decades" before it could be fully implemented.
WEG is a Brazilian company, operating worldwide in the electric engineering, power and automation technology areas. Headquartered in Jaraguá do Sul, Brazil, the company produces electric motors, generators, transformers, drives and coatings. WEG has operations in around 100 countries, with approximately 31,000 employees (2014). WEG appeared in Forbes list of the 100 largest small global companies of the world. And it has been ranked by magazine Exame as the 9th most competitive company in the American continent. WEG is the largest Latin American electric-motor manufacturer.
An electrical grid, or electric grid, is an interconnected network for delivering electricity from producers to consumers. It consists of
Mahapareshan or Mahatransco is the major electricity transmission company in the state of Maharashtra, India.
CEPCO is a leading construction company with corporate headquarters in Jeddah, Saudi Arabia, and offices throughout Saudi Arabia and the Middle East. CEPCO has been in business since 1977 and provides construction services in the fields of Civil & Infrastructure, Electrical, Horizontal Direction Drilling, Electromechanical, Oil, Gas & Power.
Energy in Ethiopia is energy and electricity production, consumption, transport, exportation and importation in Ethiopia.
Baoding Tianwei Baobian Electric Co., Ltd., commonly known as BTW, is a Chinese manufacturer of power transformers and other electrical equipment. Along with competitors Tebian Electric Apparatus (TBEA) and the XD Group, it is among the major manufacturers of transformers in China.
Zaporozhtransformator (ZTR) is a Private Joint Stock Company, formerly - Zaporozhye Transformer Plant: a company specializing in the design and manufacturing of oil-filled power transformers, shunt reactors and magnetically controlled shunt reactors, with production facilities located in Zaporizhia, Ukraine.
Končar – Power Plant and Electric Traction Engineering Inc. is a Croatian company with headquarters in Zagreb. Končar - KET is 100% owned by Končar – Electrical Industry Inc.. It is the KONČAR Group leading sales and marketing company that also manages all engineering activities within the Group. The main business activity of Končar – KET is designing and construction of complex facilities intended for generation, transmission and distribution of power, transport and industry at “turn-key” principle.
The Quaid-e-Azam Solar Park is a photovoltaic power station in Bahawalpur, Punjab, Pakistan, named in honor of Quaid-e-Azam Muhammad Ali Jinnah, the founder of Pakistan. It is 100 MW solar powered plant spanning 500 acres (200 ha) and hosting 392,158 solar modules. The project was constructed by Government of Punjab, Pakistan in May 2015 with the cost of $131 Million.
Achwa 2 Hydroelectric Power Station is a 42 megawatts (56,000 hp) hydroelectric power plant, under construction in Uganda.
