Steinmetz equivalent circuit
E61290
The Steinmetz equivalent circuit is a simplified electrical model used to represent and analyze the behavior of alternating current (AC) machines, particularly induction motors and transformers, in terms of their key electrical parameters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Steinmetz equivalent circuit canonical | 2 |
| Steinmetz model | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T490380 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Steinmetz equivalent circuit Context triple: [Charles Proteus Steinmetz, knownFor, Steinmetz equivalent circuit]
-
A.
Faraday's law of induction
Faraday's law of induction is a fundamental principle of electromagnetism that relates changing magnetic flux through a circuit to the induced electromotive force (voltage) in that circuit.
-
B.
London equations
The London equations are fundamental relations in superconductivity that describe how magnetic fields behave inside superconductors, capturing key features like the Meissner effect and zero electrical resistance.
-
C.
Electric Machines Committee
The Electric Machines Committee is a technical committee within the IEEE Industry Applications Society that focuses on the theory, design, analysis, and application of electric machines and related technologies.
-
D.
Euler’s formula for complex exponentials
Euler’s formula for complex exponentials is the fundamental identity \(e^{i\theta} = \cos\theta + i\sin\theta\), which links complex exponentials with trigonometric functions and underpins much of complex analysis and engineering mathematics.
-
E.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Steinmetz equivalent circuit Target entity description: The Steinmetz equivalent circuit is a simplified electrical model used to represent and analyze the behavior of alternating current (AC) machines, particularly induction motors and transformers, in terms of their key electrical parameters.
-
A.
Faraday's law of induction
Faraday's law of induction is a fundamental principle of electromagnetism that relates changing magnetic flux through a circuit to the induced electromotive force (voltage) in that circuit.
-
B.
London equations
The London equations are fundamental relations in superconductivity that describe how magnetic fields behave inside superconductors, capturing key features like the Meissner effect and zero electrical resistance.
-
C.
Electric Machines Committee
The Electric Machines Committee is a technical committee within the IEEE Industry Applications Society that focuses on the theory, design, analysis, and application of electric machines and related technologies.
-
D.
Euler’s formula for complex exponentials
Euler’s formula for complex exponentials is the fundamental identity \(e^{i\theta} = \cos\theta + i\sin\theta\), which links complex exponentials with trigonometric functions and underpins much of complex analysis and engineering mathematics.
-
E.
Maxwell's equations
Maxwell's equations are the fundamental set of four equations in classical electromagnetism that describe how electric and magnetic fields are generated and interact with charges and currents.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
AC machine model
ⓘ
electrical engineering concept ⓘ equivalent circuit model ⓘ |
| appliesTo |
induction motors
ⓘ
synchronous machines ⓘ transformers ⓘ |
| assumes | linear magnetic conditions for normal operation ⓘ |
| basedOn |
per-phase representation of three-phase machines
ⓘ
sinusoidal steady-state assumption ⓘ |
| enables |
Thevenin equivalent derivation for machine terminals
ⓘ
load-flow style calculations for individual machines ⓘ phasor analysis of AC machines ⓘ |
| field |
electric machine design
ⓘ
power engineering ⓘ transformer design ⓘ |
| hasAlternativeName |
Steinmetz equivalent of AC machine
ⓘ
Steinmetz equivalent circuit ⓘ
surface form:
Steinmetz model
|
| hasComponent |
core-loss resistance
ⓘ
magnetizing reactance ⓘ rotor leakage reactance referred to stator ⓘ rotor resistance referred to stator ⓘ series branch representing leakage impedance ⓘ shunt branch representing magnetizing current ⓘ stator leakage reactance ⓘ stator resistance ⓘ |
| namedAfter | Charles Proteus Steinmetz ⓘ |
| relatedTo |
Norton equivalent circuit
ⓘ
Thevenin equivalent circuit ⓘ per-unit system ⓘ |
| represents |
copper losses in windings
ⓘ
core losses ⓘ leakage flux effects ⓘ magnetizing current ⓘ slip-dependent rotor behavior in induction motors ⓘ |
| simplifies |
distributed windings into lumped parameters
ⓘ
spatially distributed fields into equivalent impedances ⓘ |
| timePeriod | early 20th century ⓘ |
| usedFor |
analyzing induction motors
ⓘ
analyzing transformers ⓘ calculating efficiency of AC machines ⓘ calculating performance characteristics of AC machines ⓘ calculating power factor of AC machines ⓘ calculating starting current of induction motors ⓘ calculating torque of induction motors ⓘ calculating voltage regulation of transformers ⓘ modeling AC machines ⓘ open-circuit test analysis of transformers ⓘ short-circuit test analysis of transformers ⓘ steady-state analysis of AC machines ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Steinmetz equivalent circuit Description of subject: The Steinmetz equivalent circuit is a simplified electrical model used to represent and analyze the behavior of alternating current (AC) machines, particularly induction motors and transformers, in terms of their key electrical parameters.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Steinmetz model