REGENERATION Changes in regeneration-responsive enhancers ...
NEW OIL REGENERATION PLANT WITH REACTIVATED FULLER’S EARTH.
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Transcript of NEW OIL REGENERATION PLANT WITH REACTIVATED FULLER’S EARTH.
NEW OIL REGENERATION PLANT WITH REACTIVATED
FULLER’S EARTH
Applications: Reduction in oil acidity from 0.4 mg Koh/gm to 0.03 mg Koh/gm.
Advantages: The same quantity of Fuller’s earth can be used >300 times due to the unique reactivation process.
Oil regeneration with reactivated Fuller’s Earth
Benefit of the oil regeneration process compared to conventional purification system.
Remove contaminants such as acids, sludge, anilinesand decaying products.
-Improve color, oxidation stability, Interfacial tension and power factor
-Extend the oil life-time cycle
-Extend more significantly the life-time cycle of power transformers (with regular regeneration treatment)
Strengths & Weaknesses of the different solutions to solve acidity
Strengths Weaknesses
Change the oil to a new or reclaimed oil
No specific equipment required: (oil pump, oil treatment plant, tank,..)No graduate people required
Power shutdown Subject to new oil price $$$$$ or difficult to find reclaimed oil.Old oil has to be disposal or resale for third applications at very low price.Short term solutions, no clean out of the transformer.Several people requested
Regenerate the oil
No power shutdown during regeneration processShort pay back returnNo oil to eliminateNo subject to oil price fluctuation or shortageClean out the transformer
Specific equipment requiredNot a lot of equipment availableGraduate people required
Main differences between both solutions to regenerate dielectric oil
Regeneration with disposable Fuller’s earth
Regeneration with reactivated Fuller’s earth
Oil losses 6% 0,4%
Fuller’s earth losses
100% 0,01% by reactivation (limit 70% before replacement)
Tasks Replacement of Fuller’s earth at saturation
Replacement almost once a year
Workforce Several people to handle operations
One people for normal operationsFew people for Fuller’s Earth replacement.
Oil test results (general)
TEST DESCRIPTION METHOD UNIT INITIAL OIL CONDITION
ERP 5000 SINGLE PASS
QUALITY
GAS CONTENT GC %v/v 8 0,01
IFT ASTM Dynes/cm <15 >40
COLOR APPEARANCE -- Visual Brown/Cloudy Clear Light Yellow
TAN DELTA (90°C) IEC 247 -- <0,01 <0,005
OXIDATION STABILITY IEC 74 164 HRS
-- Depleted Restored
MOISTURE IEC 733 ppm <200 5
BREAKDOWN VOLT IEC 156 kV <30 >75
ACIDITY IEC 296 mgKOH/gm 0,4 <0,03
ARRAS MAXEI Product range
MAS 5000 ERP
6 Columns
MAS 5000 ERP
9 Columns
MAS 5000 ERP
12 Columns
MAS 5000 ERP Dual
bank of columns
Flow rate 5000 l/h 5000 l/h 5000 l/h 5000 l/h
Regenerated oil
2400 l/day 3600 l/day 4800 l/day Capacity x 2
Filtration 1µm absolute 1µm absolute 1µm absolute1µm absolute
Treatment heating power
80 k W 80 k W 80 k W 80 kW
Reactivation heating power
36 kW 54 kW 72 kW 3 kW per column
Total heating power
116 kW 134 kW 152 kW Reactivation+ Treatment heating power
Limit vacuum closed suction
0,5 mbar 0,5 mbar 0,5 mbar 0,5 mbar
Vacuum in treatment
(mbar)
0,5 to 5 0,5 to 5 0,5 to 5 0,5 to 5
Fullers earth quantity
600 kgs 900 kgs 1200 kgs Nbre columns x 100 kgs
General layout
Presentation
SEA CONTAINER (20’ OR 40’)°
SEMI TRAILER
Container design for easy access and
maintenance
SKID