ARDB2 (Auto-Recharging Dehydrating Breather) ? 2nd Generation0 pages

WAU KESHA ® COM PON E NTS

2 N D G E N E R AT I O N

Auto-Recharging Dehydrating Breathers
INTELLIGENT TECHNOLOGY HELPS KEEP OIL DRY AND TRANSFORMERS FREE FROM CONTAMINANTS

The second generation ARDB uses breather intelligence
technology and a bypass valve to automatically schedule
regeneration and isolate the transformer from the
silica gel. Modular design and high temperature,
UV-resistant, anti-corrosive plastic housing allow
for use in confined areas.

SEE BACK SIDE FOR PART NUMBER
CONFIGURATION TOOL.

AU TO M AT I C R E C H A R G E U S I N G I N T E L L I G E N T
R E G E N E R AT I O N C O N T R O L T E C H N O LO GY
Keeping the silica gel dry eliminates the need for periodic replacement
of the desiccant. Logic controls include a humidity switch, timer and
vacuum protection circuit that automatically “learn” to regenerate
during transformer exhale only, driving moisture out of the desiccant
while keeping the transformer isolated from steam-generated
contaminants.
U S E R - C O N T R O L L E D T I M E - BA S E D S E T T I N G S
Included timer allows variable time-based settings for user-controlled
regeneration of silica gel. Time settings for 5, 10, 20 or 40 day
intervals can be set by the customer. Intelligent humidity sensor serves
as a back-up to ensure user-based settings are adequate for proper
breather operation.

Available in SMALL/8,000 gallon size and LARGE/18,000 gallon size.
For increased capacity, multiple ARDB2s may be applied to the same tank.
See back side of this brochure for LED indicator colors.

AIR FLOW

TOP CAP

I N T E G R AT E D A L A R M S
LED indicators on front cover of control box visually alert user of
breather operational status. Relay contacts are also included for
remote (SCADA) breather monitoring.t

HUMIDITY SENSOR
ISOLATION VALVE

TOP MOLDING

Q U I C K A N D E A SY I N S TA L L AT I O N
Lightweight unit with integrated controls installs
easily on as little as a 7”x5” flat mounting
surface. Quick-connect power and alarm
harnesses included.

VACUUM SENSOR

PC BOARD

AIR FLOW

O P E R AT I O N ( D I AG R A M AT L E F T )
During regeneration, a heating element located inside the ARDB2
assembly heats the partially saturated silica gel, driving moisture out.
This moisture condenses on the polycarbonate tube, forming free
water, which then flows down the tube and out the bottom vent.

~

HEATING
ELEMENT

POWER/SIGNAL PLUGS

POLYCARBONATE
TUBE

SCREEN & FILTER

HEAT DISTRIBUTION
FINS
BOTTOM MOLDING
HEATED FILTER
VENT (OPTIONAL)
WATER FLOW
DURING REGEN.

S I L I CA G E L I N F O R M AT I O N
All ARDB2s ship with an environmentally-friendly and enhanced
performance silica gel. This desiccant remains orange in color as long
as it stays dry and turns clear when saturated.

FILTER VENT

WATER FLOW
DURING REGEN.

WATER FLOW
DURING REGEN.

WATER FLOW
DURING REGEN.

TRANSFORMERS

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SERVICE

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TRAINING

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COMPONENTS