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.E.

IGNITER

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GENERAL

The H.E. igniter/ our newly

develop electric igniting device

adopting special seiconductor plug! per"ors

ignition #y low voltage and high

$energy electric dischargedepended upon in order

conventional igniter.

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The H.E. igniter is alost "ree "ro such an

accident as insulation destruction o" lea%age

the application o" as low as &'''( at the a)iu

its spar%ing is "ree "ro inter"erence #y adhesion /

deposition o" oil drops or car#on on the electrode

its spar%ing is "ree "ro inter"erence #y adhesion /deposition o" oil drops or car#on on the electrode

its very high energy per spar%ling ena#les a

direct ignition to atoi*ed heavy oil in any type

o" #urner

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This device is coposed o"source unitand plug carrier+

the source unit contains a

charge,discharge circuitcondenser! recti"ier!

trans"orer! and spacer- the

plug carrier is provided with

ignition plug.

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/E0I1I0ATI2N+

ource (oltage 3''! 33' &'' &&'(

4 to #e switched #y tap5

ower 1re6uency 7'89'H*

Generated 0alorie 39 :oule/ 0harge

ower 0onsuption appro). 7'(A

Applied High,(oltage 0a#le;

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2/ERATI2

N A0 voltage added to the priary side o" thetrans"orer is trans"ored to 3!='' ( at thesecondary side! and then charged to the

condenser a"ter #eing recti"ied in the

recti"ier. Terinal voltage o" the condenserrises in accordance with the constant o"

the resistance capacitance including series

resistance and condenser- then! when the

condenser terinal voltage reaches

discharge start voltage 4appro). 3>''(5 o"

the spacer 4constant voltage discharge

tu#e5 ! the spacer discharges electricity

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this tie! internal resistance o" the

spacer drops rear%a#ly and

there"ore the energy charged in the

condenser is "ed to the spar% plug

and instantly discharged "ro thespar%ed plug. Then! due to the

discharge! the condenser terinal

voltage approaches '( and thecircuit returns to initial state.

0harge,discharge operation is repeated as shown a#ove! at

a#out 3 second interval.

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IN/E0TI2N

rior to the inspection o" the circuit!#e sure to chec% that the condenser

is not charge a"ter shorting thecondenser is not charge a"tershorting the condenser #othterinals #y eans o" a driver or theli%e.In case o" no discharge "ro theplug! e)ecute inspection inaccordance with the se6uence#elow+

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IN/E0TI2N

chec% "or the discharge

#etween #oth electrodes o" the

spacer

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IN/E0TI2N

In case the spacer electrodes

are charging electricity ? 3

second interval+ there ust #esoe shorted portion #etween

the plug carrier and high

voltage ca#le- there"ore!care"ully inspect each portion.

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IN/E0TI2N

In case the spacer electrodes arecontinuously dischargingelectricity-

There ust #e such a "ault as"ailure o" plug! disconnection o"ca#le! or iper"ect contact o" highvoltage receptacle #etween the

plug carrier and high voltage ca#le-there"ore! disasse#le and inspecteach portion

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IN/E0TI2N

Turn o"" the power switch o" the

source unit! and then sort #oth

terinals o" the condenser- i"large spar% is "ound this tie!

the cause is attri#uted to "ailure

o" the spacer so- replace thespacer

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IN/E0TI2N

I" no spar% yet! inspect the trans"orer! recti"ier!

condenser! and series resistance.

TRAN12R@ER+ @easure continuity #etween the terinals!

and terinal voltage i" possi#le, , #y eans o" high voltage

tester.02N.@ are

inserted in #oth terinals! so the oheter shows that value

i" the condenser is noral.

RE0TI1IER+ @easure the resistance ratio o" "orwardand reverse direction #y eans o" a egger- i" the ratio is

3''+3 or ore! the recti"ier ay #e Budge as noral.

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@AINTENA0E 21 /LCG

1or aintenance! special care ust #e ta%en in the

"ollowing ites

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N2TE+

Insu""icient insertion o" the

plug can result in

ipossi#ility o" ignition- on

the other hand! e)cessive

insertion can result in

shortening o" the plug li"e.

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@AINTENA0E 21 /LCG

The center electrode o" the plug isgradually worn as spar%ing is repeated-the plug can #e used as long as its wear is

within or so. However! "urther wear a%es

spar%ing interval irregular and will resultin no spar% generation at last.

As a rough guideline! a plug is dura#le upto 3'!''',cycle spar%ing! #ut notes everyplug li"e di""ers rear%a#ly according toservice condition.