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IGNITION TRANSFORMER [10 records]

Record 1 2016-02-29

English

Subject field(s)
  • Electrical Engineering
DEF

A lagging load; a load that is predominantly inductive, so that the alternating current lags behind the alternating voltage, i.e., the current does not change direction until after the voltage does.

OBS

An example is an ignition transformer.

French

Domaine(s)
  • Électrotechnique
OBS

inductif : qualifie un dispositif électrique ou un circuit électrique dont la grandeur essentielle, dans les conditions spécifiées est l'inductance.

Spanish

Save record 1

Record 2 2012-06-26

English

Subject field(s)
  • Burners and Steamfitting
CONT

Electric spark ignitors are generally used only for ignition of distillate grades of fuel oil. The spark is generated by a transformer, which supplies up to 10 000 V to the sparking electrodes. This ignition system is frequently used on oil burners having capacities of up to 75. 8 l/h.

CONT

The burner also forces combustion air into oil spray, causing an intimate and turbulent mixing of air and oil. An electric spark or spark-ignited gas or oil ignitor, applied for a predetermined time, ignites the mixture and sustained combustion takes place.

Key term(s)
  • electric spark igniter

French

Domaine(s)
  • Fumisterie et brûleurs
OBS

[...] l'allumage automatique [...] peut-être: -soit électrique par arc ou résistance incandescente; -soit au gaz [...] -soit au combustible liquide [...]

OBS

Dans les brûleurs automatiques et dans les brûleurs partout ou rien, l'allumage du mélange combustible s'effectue par étincelle électrique provenant de deux électrodes installées au bec du brûleur (figure 30 [:Dispositif d'allumage par électrode dans un brûleur à pulvérisation mécanique.] ).

OBS

allumeur à étincelle à haute fréquence [...]

Spanish

Save record 2

Record 3 2010-07-27

English

Subject field(s)
  • Burners and Steamfitting
CONT

Oil furnace operations have not changed very much. On a call for heat from the thermostat, the burner motor will start. Oil is now pumped to the nozzle, and the ignition transformer is energized. The nozzle is designed to spray the oil into the fire tube as a fine mist. The ignition transformer is designed to create an electrical arc across the electrodes. As the oil mist(also mixed with air) comes in contact with the arc, ignition takes place, and the fire is started.

CONT

Burner controller: The controller is usually located in front of the burner. On a call for heat the controller starts a sequence of events that ensure safe operation before the burner is allowed to start. The controller continues to monitor burner operation while the boiler is running. If for any reason the controller senses an unsafe operating condition it will shut the burner off. Pushing the manual reset on the controller will often restart the boiler.

French

Domaine(s)
  • Fumisterie et brûleurs

Spanish

Save record 3

Record 4 2003-04-14

English

Subject field(s)
  • Burners and Steamfitting
DEF

Ignition of a pilot or main burner by an electric spark generated by a transformer, which is either automatically or manually energized.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Le fonctionnement des brûleurs automatiques s'effectue sans autre intervention que la commande manuelle de mise en route, l'allumage automatique étant réalisé. Cet allumage peut être: - soit électrique par arc ou résistance incandescente; - soit du gaz [...] - soit au combustible liquide [...].

Spanish

Campo(s) temático(s)
  • Artículos de fumistería y quemadores
Save record 4

Record 5 2001-02-26

English

Subject field(s)
  • Burners and Steamfitting
CONT

High pressure, gun-type burners consist of a motor, oil pump(with integral or separate pressure regulating and shut-off valve), strainer, fan, ignition transformer, nozzle and electrode assembly.... The motor-driven pump draws oil from the supply tank and delivers it to the nozzle at pressures of from 100 to 300 psi. The nozzle atomizes the oil into fine particles and swirls it into the combustion chamber as a cone-shaped spray where it mixes with air [moving down the blast gun tube] and is ignited. [By an electric spark]. They are generally designed to burn No. 2 oil although some of the larger sizes are made for No. 4 oil.

French

Domaine(s)
  • Fumisterie et brûleurs
CONT

Brûleur à pulvérisation mécanique: le mazout, passant par un filtre, est aspiré par une pompe à engrenage vers un régulateur de pression et un gicleur qui réalise la pulvérisation [...]. Le mélange air-mazout pulvérisé est enflammé par une étincelle jaillie entre deux électrodes et la combustion s'entretient d'elle-même. Ce type de brûleur est relativement silencieux mais il exige un fuel pur pour ne pas encrasser trop vite le filtre ou boucher le gicleur.

Spanish

Save record 5

Record 6 2000-06-02

English

Subject field(s)
  • Amplifiers (Electronics)
  • Electronic Measurements
  • Thermoelectricity and Thermoelectronics
  • Burners and Steamfitting
DEF

The part of the flame detection system which increases the flame signal to a magnitude sufficient to pull in the flame relay in the flame safeguard control. The amplifier may be a permanent part of the flame safeguard control, or it may be a replaceable, plug-in unit.

CONT

Hegwein pilot burners are compact, sturdy, and feature a modular design. Models are available with a built-in ignition transformer, or with both flame signal amplifier and ignition transformer.

OBS

Flame signal: the current measured at the meter jack of a flame signal amplifier in a flame safeguard control. The current is produced by the flame detector when it senses a flame.

OBS

Conventional multi-burner scanners have relied on the strength or amplitude of the flame signal to discriminate between burner flame-on and burner flame-off. This is most often done by using the amplitude output of the flame signal after bandpass or highpass filtering.

French

Domaine(s)
  • Amplificateurs (Électronique)
  • Mesures électroniques
  • Thermoélectrique et thermoélectronique
  • Fumisterie et brûleurs

Spanish

Save record 6

Record 7 2000-05-25

English

Subject field(s)
  • Electrical Engineering
  • Burners and Steamfitting
DEF

A high voltage transformer which produces a spark, used to ignite gas pilots or oil burners(direct spark ignition).

French

Domaine(s)
  • Électrotechnique
  • Fumisterie et brûleurs

Spanish

Save record 7

Record 8 2000-05-25

English

Subject field(s)
  • Burners and Steamfitting
  • Transformers
DEF

A device which provides high-voltage spark which will cause ignition.

CONT

The ignition transformer, commonly known as a step-up transformer, is used to step up the voltage to 5, 000 V in order to jump the gap at the end of the ignition electrode. Ignition transformers are quite trouble-free, and require only that the primary voltage correspond to that of the transformer, that the electrical connections be clean and tight, and that the secondary terminals be kept clean. If the secondary terminal post becomes fouled with soot, dust, or foreign matter, the high-tension spark can easily short circuit to the transformer case, resulting in no spark at the ignition electrode. A transformer in good condition should cause the spark to jump a gap of no less than 1/4 in.

OBS

In the automotive field this device is called the "ignition coil".

Key term(s)
  • step-up transformer

French

Domaine(s)
  • Fumisterie et brûleurs
  • Transformateurs
CONT

Chauffage [...] Dispositif d'allumage électrique. Il se compose d'un transformateur d'allumage, de 2 câbles d'allumage, 2 isolateurs en porcelaine et 2 électrodes entre lesquelles jaillit l'étincelle d'allumage du mélange air-fuel. Le transformateur produit une tension comprise entre 10 000 et 12 000 V. Il est important que le réglage soit correct.

OBS

En mécanique automobile, ce dispositif s'appelle «bobine d'allumage».

Spanish

Save record 8

Record 9 2000-03-31

English

Subject field(s)
  • Burners and Steamfitting
DEF

Use of an ignition spark, generated by a high voltage transformer, to light the main burner; applies to burners not using a pilot, usually small oil burners.

DEF

A type of intermittent ignition system that ignites the gas directly at the main burner by means of a spark.

French

Domaine(s)
  • Fumisterie et brûleurs
OBS

Dans la modélisation de la combustion turbulente se déroulant dans les moteurs à injection directe, il faut considérer d'une part les flammes partiellement prémélangées dans les moteurs essence et d'autre part les flammes de diffusion dans les moteurs Diesel. De plus, la spécificité des moteurs alternatifs nécessite la description des modes de démarrage et de propagation de la flamme dans les chambres de combustion. Il s'agit de l'allumage par étincelle pour le moteur essence et de l'auto-inflammation pour le moteur Diesel.

OBS

Le Bureau du Commissaire des incendies a été informé [...] du remplacement du boîtier des commandes utilisées avec des chauffe-eau à ventilation forcée avec allumage direct par surface chaude.

Spanish

Save record 9

Record 10 1976-06-19

English

Subject field(s)
  • Transformers

French

Domaine(s)
  • Transformateurs

Spanish

Save record 10

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