# delta connection

> 3-phase circuit

**Wikidata**: [Q1257459](https://www.wikidata.org/wiki/Q1257459)  
**Source**: https://4ort.xyz/entity/delta-connection

## Summary
A delta connection is a specific type of 3-phase circuit used in electronic systems. Also known as a triangle connection, it is classified as an electronic component and is structurally distinct from a star connection. It is defined by the International Electrotechnical Vocabulary under the number 141-02-09.

## Key Facts
*   **Definition:** A delta connection is a 3-phase circuit.
*   **Classification:** It is an instance of an electronic component (a basic discrete device or physical entity used to affect electrons or their associated fields).
*   **Standard ID:** The International Electrotechnical Vocabulary (IEV) number is 141-02-09.
*   **Distinct From:** It is explicitly different from a star connection.
*   **Aliases:** Also known as a delta circuit, triangle connection, connexion en triangle, connexion delta, Drei-Leitersystem, or Dreileitersystem.
*   **Encyclopedia ID:** Listed in Encyclopædia Britannica Online as `technology/delta-connection-electronics`.
*   **Knowledge Graph:** Google Knowledge Graph ID is `/g/121gpfr8`.
*   **Media:** Visual documentation is available on Wikimedia Commons under the category "Delta connection."

## FAQs
### Q: What is a delta connection?
A: A delta connection is an electronic component configured as a 3-phase circuit. It is utilized within electronic systems to manage electrons and their associated fields.

### Q: How does a delta connection differ from a star connection?
A: The delta connection is explicitly categorized as being different from a star connection. While both relate to 3-phase systems, the delta connection is distinguished by its specific circuit topology.

### Q: What are other names for a delta connection?
A: It is frequently referred to as a delta circuit, triangle connection, or by its German terms Drei-Leitersystem or Dreileitersystem.

## Why It Matters
The delta connection is a fundamental topology in the field of electronics and electrical engineering. As a core type of 3-phase circuit, it represents a basic discrete device or physical entity essential for affecting electrons and their associated fields within a system.

Its significance is highlighted by its standardization and global recognition. The connection is formally defined by the International Electrotechnical Commission (IEV 141-02-09) and is a recognized entry in major knowledge bases like Encyclopædia Britannica and the Google Knowledge Graph. The clear distinction between this configuration and the "star connection" provides engineers and physicists with necessary conceptual clarity when designing or analyzing power and circuit systems. Its multilingual aliases (including French and German variants) further underscore its widespread utility and standardization in global technical contexts.

## Notable For
*   **Circuit Topology:** Being a distinct configuration for 3-phase circuits.
*   **Standardization:** Possessing a specific International Electrotechnical Vocabulary (IEV) number (141-02-09).
*   **Nomenclature:** Being identifiable in multiple languages, including English, French (*connexion en triangle*), and German (*Dreileitersystem*).
*   **Distinction:** Being explicitly differentiated from the star connection method.

## Body
### Definition and Classification
The delta connection is defined as a 3-phase circuit. In the hierarchy of electronic components, it is considered an instance of a basic discrete device or physical entity used to affect electrons or their associated fields.

### Naming and Terminology
The entity is recognized globally under various names. In English, it is often called a delta circuit or triangle connection.
*   **French:** connexion en triangle, connexion delta
*   **German:** Drei-Leitersystem, Dreileitersystem

### Standardization and Identifiers
The concept is strictly regulated and identified in technical databases:
*   **IEV Number:** 141-02-09
*   **Google Knowledge Graph ID:** /g/121gpfr8
*   **Encyclopædia Britannica:** technology/delta-connection-electronics
*   **Wikimedia Commons:** Category:Delta connection (includes files such as `AC_delta_connection.svg` and `Three-phase_delta_connection.png`)

### Comparative Relationships
In the context of circuit theory, the delta connection is noted as being "different_from" the star connection. This distinction is critical for the classification of 3-phase systems.