Global 5120 - Page 14

GlobalPowerTechnologies  1-6
5120
The TEG is supplied with a protective device which prevents its output voltage from rising
beyond12V.Thisisrequiredbecauseunderextendedopencircuit(orslightlyloaded)condi-
tionsthehotjunctiontemperaturecouldincreasebeyondthesafeoperatingrange.
Insummary,theTEGproduceselectricalpowerwhenatemperaturedi󰀨erenceismaintained
between the hot and cold junctions of the thermocouples.  This temperature di󰀨erence, and
thereforetheamountofpowerproduced,dependsontherateatwhichfuelissuppliedtothe
burnerandtheambienttemperature.
The electrical output of the 5120 TEG changes as the ambient temperatures changes; the
powerincreasesasthetemperaturedecreases.
 Thetermrated-powerisusedwhenthemaximumambienttemperatureis65ºC.
• The5120 TEG’spowerunitproduces120 Wattsgrossat20ºCat thebeginningof its
servicelife.
• Power decreases at a rate of 0.288% per ºC rise in Temperature (0.16% per ºF) see
Figure7onpage2-7.
• Maximumallowableambienttemperatureforoperationis45ºC(115ºF).