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STB000 Main Tank & LTC Smart Transformer Dehydrating Breather
Brand: Qualitrol Company
Excess moisture from the atmosphere may degrade a transformer bladder, oil and insulation system over time.
This degradation causes unnecessary aging to the asset, reducing the overall life and performance.
This can lead to additional maintenance or even premature and unexpected asset failure in the future.
A dehydrating breather can extend the life of your asset.
Features- Reduce maintenance costs with learned transformer breathing patterns and self-regenerating desiccant
- Universal algorithm determines the best regeneration style based on the breathing pattern of the transformer. The STB000 automatically shifts to a time-based regeneration if it is installed on a tank that does not breathe, such as LTC application, eliminating the need to carry two models in your inventory
- All units have standard C5M coating
- Multiple communication options including 4-20 mA, RS-485 MODBUS and local USB port provide allow for trending of moisture readings and regeneration cycles
- New test button option allows for an easy diagnostic check of breather functions in the field
- External LED indication gives current status of unit including active regeneration
- Oil desiccant size of 30,000 liters/8,000 gallons
Specifications
Brand
Analog Output Signal
- 4-20 mA At, Max.
Coating
- C5M High Durability Paint
Communication
- Modbus (Remote) & USB (Local)
Conducted, Radiated Emissions
- EN 55011
Control Box Humidity
- 95 % Non-Condensing at 80° C, IP65
Desiccant
- Colorless, Non-Poisonous Silica Gel
Dielectric Isolation
- 1,500 Vac for 60 seconds to Ground
Failure Mode Detection
- RH Sensor, Heater, Solenoid
Harmonics & Flicker Test
- EN 61000-3-2, 61000-3-3
Housing & Frame
- Die Cast Aluminum
- Stainless Steel
Humidity Range
- 2 to 100 % Relative Humidity
Immunity Test
- EN 61000-4-2,3,4,5,6,8, 11
Inrush Control
- Staged Heating at 10 seconds
Memory Size
- 32 MB (20-Years of Data)
Parameters Recorded
- Timestamp, Humidity, Temperature, Error State, Relay Status (Error & Regeneration Relays)
Power Consumption
- Regeneration Heater Inrush Current: < 12 A
- Steady State Regeneration Heater Current: < 3 A
- Steady State, Non-Regeneration: < 10 W
Protection Vibration
- 50/60 Hz at 0.004” Displacement
Regeneration Cycle
- 3 Hours Full Power, 2 Hours Cool Down, 1-Hour Rest
Regeneration Frequency Control
- 2-Position DIP Switch
Regeneration Frequency Setting
- 10, 40, 70, 100 Days
Regeneration Status Monitoring
- 5 A (NO), 3 A (NC) at 125/250 Vac Resistive
- 5 A (NO), 3 A (NC) at 30 Vdc Resistive
Relative Humidity Trigger Level
- User Configurable: 25 % Relative Humidity Default Value
Sampling Rate
- 15 minutes
Status Indication
- LED - Green, Blinking Green or Red Depending on Breather Status
Temperature Relative
- -40° to 70° C (-40° to 158° F) or -60° to 70° C (-76° to 158° F)
Tube
- UV Stabilized Polycarbonate or Glass
Voltage / Frequency
- 100-240 Vac, 50/60 Hz