Most stages of maintenance and repair work on power transformers require depressurization of their active part.
Depressurization can result in wet atmospheric air getting into the windings insulation, which is undesirable. To prevent this happening GlobeCore produces a “Mojave Heat-100” unit, the last model was shipped to the Customer in September.
The equipment carries out drying of transformer tanks with dry hot air with was previously purified from moisture and mechanical impurities. Also a “Mojave Heat-100” regenerates the adsorbent.
Technical characteristics of Mojave Heat-100
|1. Dry air capacity, m3 / min, min||1,7|
|2. Dry air max dew point, ° С||– 50|
|3. Dry air pressure, MPa / bar||0,018/0,18|
|4. Max dry air temperature, ° С||90±15|
|5. Adsorbent load, kg, max||190|
|6. Number of adsorbers, pcs.||1|
|7. Zeolite max regeneration temperature, ° С||430|
|8. Air heater power, kW, max||24|
|9. Power consumption, kW, max||Air drying (normal mode)||1|
|Regeneration of adsorbent in the adso||25|
|Hot air input||25|
|10. Three-phase 50Hz, AC voltage, V||380|
|11. Temperature of hot air output for regeneration of adsorbent, ° С, max||430|
|12. Time for adsorbent regeneration, hours||4|
|13. Fineness of dry air filtration, μm||5|
|14. Overall dimensions, mm, max:||length||1350|
|15. Weight, kg, max||550|
“Mojave Heat-100” consists of an adsorber, a blower and a heater. The equipment is compact in size, which is convenient for transportation and use.
Adsorbent regeneration is realized directly in the unit. It eliminates zeolite losses when loading and offloading.