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Lecture

Star or Triangle Connection

Description

This lecture covers the concepts of star and triangle connections in electrical engineering, focusing on balanced three-phase loads. It explains the phase currents and voltages for symmetrical systems, as well as the merging of phase tensions in both types of connections.

In MOOC

Electrical engineering II

Official source

Quiz

Ontological neighbourhood

Electrical engineering

Power engineering: Electric power transmission

Related concepts (22)

Three-phase electric power

Three-phase electric power (abbreviated 3φ) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power. Three-phase electrical power was developed in the 1880s by several people. In three-phase power, the voltage on each wire is 120 degrees phase shifted relative to each of the other wires.

Phase converter

A phase converter is a device that converts electric power provided as single phase to multiple phase or vice versa. The majority of phase converters are used to produce three-phase electric power from a single-phase source, thus allowing the operation of three-phase equipment at a site that only has single-phase electrical service. Phase converters are used where three-phase service is not available from the utility provider or is too costly to install.

Two-phase electric power

Two-phase electrical power was an early 20th-century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by one-quarter of a cycle, 90°. Usually circuits used four wires, two for each phase. Less frequently, three wires were used, with a common wire with a larger-diameter conductor. Some early two-phase generators had two complete rotor and field assemblies, with windings physically offset to provide two-phase power.

Split-phase electric power

A split-phase or single-phase three-wire system is a type of single-phase electric power distribution. It is the alternating current (AC) equivalent of the original Edison Machine Works three-wire direct-current system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system, while only requiring a single phase on the supply side of the distribution transformer. This system is common in North America for residential and light commercial applications.

Electrical engineering

Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics, and electromagnetism. It emerged as an identifiable occupation in the latter half of the 19th century after the commercialization of the electric telegraph, the telephone, and electrical power generation, distribution, and use.

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Triangle-Star Transformation MOOC: Electrical engineering II

Explores the transformation of a triangle assembly into a star assembly.

Power in Single-Phase AC, Different Power Types MOOC: Electrical engineering I

Explores instantaneous power, active power, reactive power, and apparent power in single-phase AC systems.

Variable Voltage and Frequency Power Supply

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Related concepts (22)

Three-phase electric power

Phase converter

Two-phase electric power

Split-phase electric power

Electrical engineering