Description
Product Core Brief
- Model: UBC717AE01 (HIEE300927R0101)
- Brand: ABB
- Series: Transformer Gas Monitoring / DGA Control
- Core Function: Digital/analog control unit for dissolved gas analysis (DGA) monitoring in oil-filled transformers. Handles communication, display, alarm outputs, and analog signal processing for gas content measurement.
- Product Type: Gas Monitoring Control Unit
- Key Specs: LED digital display (ppm gas reading) | Configurable analog outputs (0–1 mA / 4–20 mA / 0–1 V / 0–10 V) | Alarm contacts (gas high, gas high-high, system fault) | H201Ti transmitter interface
- Condition: New Original / New Surplus
Key Technical Specifications
- Part Number: / HIEE300927R0101
- Manufacturer: ABB
- Product Category: Gas monitoring control unit / DGA controller
- Application: Dissolved gas analysis (DGA) for oil-filled power transformers
- Display: Front-panel LED digital display showing gas content in ppm
- Alarm Indicators: Two gas alarm LEDs (high / high-high threshold)
- Alarm Contacts: Gas high, gas high-high, and system fault relay outputs
- Analog Output (Non-isolated): Configurable via jumpers — 0–1 mA, 4–20 mA, 0–1 V, or 0–10 V
- Analog Output (Isolated): Configurable via jumpers — same range options
- Transmitter Interface: Auxiliary terminal for H201Ti intelligent transmitter supervision
- Communication: Profibus DP-V1 (slave mode, up to 12 Mbps), optional Modbus RTU (RS485)
- DCS Compatibility: ABB 800xA, AC 800M, and extended supply DCS systems
- Power Supply: 24 V DC (typical range: 19.2–28.8 V DC)
- Power Consumption: ≤5 W (static)
- Operating Temperature: -40°C to +70°C (industrial grade)
- Protection Rating: IP20 (control cabinet installation)
- EMC Compliance: IEC 61000-4 (ESD ±8 kV, surge ±2 kV)
- Mounting: DIN rail (EN 60715) or rack-mount
- Dimensions: 120 mm × 80 mm × 40 mm (W × H × D)
- Hot-swap: Supported (when system configuration allows)
- Condition: New / New Surplus
- Warranty: Up to 12 months (supplier-dependent)
Product Introduction
The UBC717AE01 is an ABB gas monitoring control unit designed for dissolved gas analysis (DGA) in oil-filled power transformers. It serves as the central processing and communication hub for transformer gas monitoring systems — receiving sensor data from the H201Ti intelligent transmitter, processing gas concentration readings, and presenting real-time ppm values on its front-panel LED display.
The module provides dual-level gas alarm contacts (high and high-high thresholds) plus a system fault relay, ensuring that abnormal gas generation — an early indicator of tra
nsformer insulation degradation or arcing — triggers immediate notification to the plant DCS or SCADA system. Configurable analog outputs (isolated and non-isolated) allow seamless integration with legacy analog recording systems alongside modern digital Profibus/Modbus networks.
For utilities and industrial operators running ABB DGA installations, this module is a critical spare. A failed control unit means loss of real-time gas monitoring visibility on the transformer — a condition that most asset management programs classify as high-priority for immediate restoration.
QA & Testing SOP
Gas monitoring controllers bridge safety-critical transformer protection and plant DCS — a faulty unit can mask a developing transformer fault. Here is the bench routine:
- Visual & authenticity inspection. Examine the PCB for corrosion, cold solder joints, or rework marks. Verify the ABB label, part number HIEE300927R0101, hardware revision AE01, and serial traceability against known OEM formats.
- Power-up & display test. Apply 24 V DC supply and confirm stable boot. Verify the front-panel LED display initializes correctly and shows valid ppm readings (not all-segments or blank). Confirm both gas alarm LEDs function.
- Analog output verification. Set jumper configuration to a known range (e.g., 4–20 mA). Inject a simulated transmitter signal and measure the analog output with a calibrated meter. Repeat for both isolated and non-isolated output channels. Confirm accuracy across the full scale.
- Alarm contact test. Simulate gas high and gas high-high threshold conditions. Verify each relay contact closes and opens correctly. Test the system fault relay by inducing a communication loss with the transmitter interface.
- H201Ti transmitter interface. Connect a test H201Ti transmitter (or simulator) to the auxiliary terminal. Confirm supervision link is established and gas readings are received and displayed correctly.
- Communication handshake. Test Profibus DP and/or Modbus RTU interface. Confirm the module registers as a slave device and that gas readings, alarm status, and diagnostic data are readable by a master/DCS.
- Anti-static packing. ESD bag with desiccant, rigid foam around connectors and terminal blocks — standard practice for any board-level spare.
Installation Pitfalls & Guide
❗ Verify analog output jumper settings. The module supports four different analog output ranges (0–1 mA, 4–20 mA, 0–1 V, 0–10 V) on both isolated and non-isolated channels. The jumper configuration must match what the downstream recorder or DCS analog input expects. A mismatch will produce incorrect readings that could mask a real transformer fault.
❗ Confirm H201Ti transmitter compatibility. The auxiliary terminal is designed specifically for the H201Ti intelligent transmitter. Using an incompatible transmitter or incorrect wiring will prevent the supervision link from establishing, resulting in a system fault alarm.
❗ Set alarm thresholds correctly. The gas high and gas high-high alarm setpoints must be configured according to the transformer’s specific gas generation limits (per IEC 60599 or site-specific criteria). Default thresholds may not be appropriate for all transformer types and oil volumes.
❗ Ground reference for isolated outputs. If using the isolated analog output, ensure the isolation barrier is not compromised by a shared ground elsewhere in the signal chain. A ground loop across the isolation barrier defeats the purpose of the isolated channel.
Replacement steps:
- Pre-install: Record existing jumper settings (analog output range), alarm threshold values, Profibus/Modbus address, and wiring connections. Photograph the terminal block layout.
- Removal: De-energize the module if hot-swap is not confirmed for your system. Label all connections before disconnecting.
- Install: Set jumpers on the new module to match the original configuration. Seat the module and reconnect wiring per the original layout.
- Power-on test: Energize, confirm LED display shows valid ppm readings, verify alarm contacts, and validate communication with the host DCS under supervision.
Technical FAQ
Is this an OEM genuine part? Yes. The UBC717AE01 is an ABB-origin gas monitoring control unit. Units are sourced as new original or new surplus with full part number traceability (HIEE300927R0101).
What is the warranty? Typically 12 months from acceptance, depending on supplier terms. Always confirm warranty conditions before purchase.
Can I use this as a direct replacement? In most cases, yes — provided the part number and hardware revision (AE01) match your existing unit. However, you must replicate the original jumper settings (analog output range), alarm thresholds, and communication address before commissioning.
What transmitter does this module work with? The UBC717AE01 is designed to interface with the ABB H201Ti intelligent gas transmitter. The auxiliary terminal provides supervision and data communication with this specific transmitter model.
Is this product still supported by ABB? ABB maintains long-term spare parts support for transformer monitoring products, but availability varies by region and lifecycle status. For active service contracts, confirm current support directly with ABB.
Do you offer pricing for bulk or repeat orders? Pricing is quoted per unit and can be adjusted for volume, repeat procurement, or long-term spare parts agreements. Send the part number and quantity for a direct quote.
