# root 3 circuit

## Spanish translation: Circuito de 'raíz de 3'

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 14:11 Nov 3, 2007
English to Spanish translations [PRO]
Tech/Engineering - Electronics / Elect Eng / soft starters
 English term or phrase: root 3 circuit Habla de la posibilidad de instalación de arrancadores suaves en circuitos estándar vs "root-3 circuit" Gracias!!!!!!!
 Local time: 19:51
 Spanish translation:Circuito de 'raíz de 3' Explanation:Es un tipo de conexión de un controlador de motor eléctrico trifásico, en la que la corriente es el 58% de la corriente de la conexión estándar. Eso implica que es igual a la corriente de la conexión estándar dividida por la raíz de 3. Es una relación típica entre las tensiones y corrientes de 'fase' y de 'línea' de los sistemas trifásicos. Referencia (con diagramas circuitales): Circuit concept The SIKOSTART 3RW34 can be operated in two different types of circuit. 'Standard circuit' means that the switching devices for disconnecting and protecting the motor are simply connected. in series with the soft starter. The motor is connected to the soft starter with three leads. 'Root 3 switching' The wiring is similar to that of star-delta starters. The phases of the soft starter are connected in series with the individual motor windings. The soft starter then only has to carry the phase current, amounting to about 58 % of the motor's rated current (conductor current).
Selected response from:

Raúl Waldman
Argentina
Local time: 19:51
 Impecable tu explicación Raul, muchísimas gracias!!!!4 KudoZ points were awarded for this answer

5 +1Circuito de 'raíz de 3'
 Raúl Waldman
5circuito al que se le aplica la regla de la raíz de 3slothm
3 +1circuito de raiz 3
3circuito raiz cúbica
 Kathryn Litherland

15 mins   confidence: peer agreement (net): +1
circuito de raiz 3

Explanation:
Mi opción.

Suerte.

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Note added at 17 minutos (2007-11-03 14:28:29 GMT)
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CAT.INIST- [ Traduzca esta página ]The classic square-root circuit, designed using exclusively MOS transistors is ... Orden 2 ; Circuito aritmético ; Tecnología MOS ; Modelo orden reducido ...
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 NTRADSpainLocal time: 00:51Works in fieldNative speaker of: SpanishPRO pts in category: 8

agree
 4 hrs
-> gracias

36 mins   confidence:
circuito raiz cúbica

Explanation:
root 3 circuit = cube root circuit (as opposed to a standard, square root circuit)

I'm only giving this a 3 confidence because I can't actually FIND "circuito raiz cúbica" used anywhere. But perhaps this will spur someone else to find the term that is actually used.

 Kathryn LitherlandUnited StatesLocal time: 18:51Specializes in fieldNative speaker of: EnglishPRO pts in category: 12

7 hrs   confidence: peer agreement (net): +1
Circuito de 'raíz de 3'

Explanation:
Es un tipo de conexión de un controlador de motor eléctrico trifásico, en la que la corriente es el 58% de la corriente de la conexión estándar. Eso implica que es igual a la corriente de la conexión estándar dividida por la raíz de 3. Es una relación típica entre las tensiones y corrientes de 'fase' y de 'línea' de los sistemas trifásicos.
Referencia (con diagramas circuitales):
Circuit concept
The SIKOSTART 3RW34 can be
operated in two different types
of circuit.
'Standard circuit' means that
the switching devices for disconnecting
and protecting the
motor are simply connected.
in series with the soft starter.
The motor is connected to the
'Root 3 switching'
The wiring is similar to that of
star-delta starters. The phases
of the soft starter are connected
in series with the individual
motor windings. The
soft starter then only has to
carry the phase current,
amounting to about 58 % of
the motor's rated current (conductor
current).

Reference: http://www.iansystem.com/image/catalogue/softstarter/NSK2000...
 Raúl WaldmanArgentinaLocal time: 19:51Specializes in fieldNative speaker of: SpanishPRO pts in category: 493
 Impecable tu explicación Raul, muchísimas gracias!!!!

agree  Tomás Cano Binder, BA, CT: Un agree por la explicación y por que es "raíz de 3" no "raíz 3".
 8 hrs
-> Muchísimas gracias, Tomás.

1 day7 hrs   confidence:
circuito al que se le aplica la regla de la raíz de 3

Explanation:
Literature containing a detailed discussion of short circuit capacity calculations are
available within the electrical power transmission industry. [1]

The following calculations will determine the extra kVA capacity required for a three
phase transformer that is used to feed a single three phase motor that is started with
full voltage applied to its terminals, or, "across-the-line."

Two transformers will be discussed, the first having an unlimited short circuit kVA
capacity available at its primary terminals, and the second having a much lower input
short circuit capacity available.

kVA of a single phase transformer = V x A

kVA of a three phase transformer = V x A x 1.732, where 1.732 = the square root of 3.
The square root of 3 is introduced for the reason that, in a three phase system,
the phases are 120 degrees apart and, therefore, can not be added arithmetically.
It is a calculation rule, empirical and of course very practical as it permits quick calculation of the surge that must be contemplated.

 slothmLocal time: 19:51Works in fieldNative speaker of: SpanishPRO pts in category: 501

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