KudoZ home » English to Spanish » Tech/Engineering

to fire a soft/hard crowbar

Spanish translation: disparar / cortocircuito total (contra sobretensión)

Advertisement

Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs
(or are passionate about them). Participation is free and the site has a strict confidentiality policy.
11:59 Jun 20, 2001
English to Spanish translations [PRO]
Tech/Engineering
English term or phrase: to fire a soft/hard crowbar
En el contexto de un software de control de locomotoras. "Firing" es "explosión", pero no estoy seguro de qué verbo usar para "fire" y del término "soft/hard crowbar". Gracias!

"TCC protection test is used to verify the TCC Protection system’s ability to fire a soft crowbar and a hard crowbar"
David Meléndez Tormen
Spain
Local time: 06:55
Spanish translation:disparar / cortocircuito total (contra sobretensión)
Explanation:
Hola, David.
Crowbar es un dispositivo de cortocircuito para casos de sobretensión. Me parece que puede usarse "disparar" o "accionar" para "fire". Ahora, soft y hard, no lo he logrado descubrir.
Te paso lo que encontré; te recomiendo en especial el primer artículo:

In the first case, the locomotive "fired" what is referred to as a hard crowbar; he also noted when this happened, the effect was worse than that of a ground relay tripping (this is very true; it is because you are producing much higher levels of voltage in the AC control systems than in the DC portions.
The sudden removal of this level of power produces this effect). Here is the background: This feature is part of what is named the Inverter Protection System (IPS); it is in the SIBAS16 inverter control system, and it is there to protect the system's components from potentially damaging electrical imbalances. The "firing" of a hard crowbar creates an authentic dead short across the DC Link switchgear; this action causes the main generator to stop producing output and, in addition, immediately discharges the DC Link voltages by way of placing on-line numerous devices called bleeder resistors, which reduce the voltage levels to little or no degrees
http://www.flash.net/~cymartin/crossxroads/74airbrk.htm

The OVP scheme also provides a soft crowbar function (bang-bang control followed by blow of the fuse) which helps to tackle severe load transients but does not invert out-put voltage when activated-a common problem for OVP schemes with a latch
www.fairchildsemi.com/ds/FA/FAN5230.pdf

This `soft-crowbar' condition will be maintained until the output voltage returns to the regulation window and then normal operation will continue.
This `soft-crowbar' and monitoring of the output, prevents the output voltage from ringing negative as the inductor current flows in the `reverse' direction through the lower MOSFET
and output capacitors
www.intersil.com/data/fn/fn4/fn4903/FN4903.pdf

CROWBAR PROTECTION on units 15 amps and larger.
http://www.tripplite.com/products/family/verters/230/230inde...
CORTOCIRCUITO TOTAL AUTOMÁTICO DE PROTECCIÓN CONTRA SOBRETENSIONES en las unidades de 15 o más amperios
http://www.tripplite.com/espanol/products_verters_230index.h...

Crowbar :
Electronic safety circuits which turn off power when current and/or voltage goes to a dangerous level
http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

Espero que te sirva, saludos,
Patricia
Selected response from:

Patricia Lutteral
Argentina
Local time: 02:55
Grading comment
Gracias!
4 KudoZ points were awarded for this answer

Advertisement


Summary of answers provided
nadisparar / cortocircuito total (contra sobretensión)
Patricia Lutteral
naactivarMaria Aguirrezabala


  

Answers


39 mins
activar


Explanation:
Es solo una idea, pero posiblemente aquí "fire" tenga más el sentido de "activar".

Maria Aguirrezabala
Local time: 05:55
PRO pts in pair: 104
Login to enter a peer comment (or grade)

3 hrs
disparar / cortocircuito total (contra sobretensión)


Explanation:
Hola, David.
Crowbar es un dispositivo de cortocircuito para casos de sobretensión. Me parece que puede usarse "disparar" o "accionar" para "fire". Ahora, soft y hard, no lo he logrado descubrir.
Te paso lo que encontré; te recomiendo en especial el primer artículo:

In the first case, the locomotive "fired" what is referred to as a hard crowbar; he also noted when this happened, the effect was worse than that of a ground relay tripping (this is very true; it is because you are producing much higher levels of voltage in the AC control systems than in the DC portions.
The sudden removal of this level of power produces this effect). Here is the background: This feature is part of what is named the Inverter Protection System (IPS); it is in the SIBAS16 inverter control system, and it is there to protect the system's components from potentially damaging electrical imbalances. The "firing" of a hard crowbar creates an authentic dead short across the DC Link switchgear; this action causes the main generator to stop producing output and, in addition, immediately discharges the DC Link voltages by way of placing on-line numerous devices called bleeder resistors, which reduce the voltage levels to little or no degrees
http://www.flash.net/~cymartin/crossxroads/74airbrk.htm

The OVP scheme also provides a soft crowbar function (bang-bang control followed by blow of the fuse) which helps to tackle severe load transients but does not invert out-put voltage when activated-a common problem for OVP schemes with a latch
www.fairchildsemi.com/ds/FA/FAN5230.pdf

This `soft-crowbar' condition will be maintained until the output voltage returns to the regulation window and then normal operation will continue.
This `soft-crowbar' and monitoring of the output, prevents the output voltage from ringing negative as the inductor current flows in the `reverse' direction through the lower MOSFET
and output capacitors
www.intersil.com/data/fn/fn4/fn4903/FN4903.pdf

CROWBAR PROTECTION on units 15 amps and larger.
http://www.tripplite.com/products/family/verters/230/230inde...
CORTOCIRCUITO TOTAL AUTOMÁTICO DE PROTECCIÓN CONTRA SOBRETENSIONES en las unidades de 15 o más amperios
http://www.tripplite.com/espanol/products_verters_230index.h...

Crowbar :
Electronic safety circuits which turn off power when current and/or voltage goes to a dangerous level
http://www-bdnew.fnal.gov/operations/accgloss/gloss.html

Espero que te sirva, saludos,
Patricia


Patricia Lutteral
Argentina
Local time: 02:55
Native speaker of: Spanish
PRO pts in pair: 1564
Grading comment
Gracias!
Login to enter a peer comment (or grade)




Return to KudoZ list


KudoZ™ translation help
The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.



See also:



Term search
  • All of ProZ.com
  • Term search
  • Jobs
  • Forums
  • Multiple search