Description
ABB RET615E-G HBTBBABANBA1BNN1XG – Transformer Protection Relay for Industrial Power Systems
The ABB RET615E-G HBTBBABANBA1BNN1XG is a dedicated transformer protection and control relay from the ABB Relion® 615 series . This ABB RET615E-G device combines high-speed differential protection, distance-based teleprotection, and comprehensive backup overcurrent functions in a single compact unit, making it ideal for protecting power transformers, auxiliary transformers, and generator-transformer units in utility substations, industrial plants, and renewable energy facilities
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| Item | Details |
|---|---|
| Brand | ABB |
| Model | RET615E-G HBTBBABANBA1BNN1XG |
| Availability | In Stock |
| Delivery Time | 3–5 business days after payment |
| Warranty | 12 months |
| Condition | New / Original Factory Seal |
| Product Type | Transformer protection and control relay |
| Series | Relion® 615 series |
| Protection Functions | Details |
|---|---|
| Differential Protection (87T) | High-speed with harmonic restraint for inrush current |
| Distance Protection | Zones 1–6 backup protection for lines/feeders (<1 ms operating time) |
| Restricted Earth Fault (REF) | Sensitive detection for single-phase ground faults |
| Overcurrent (50/51) | Multiple stages (phase, negative-sequence, ground fault) |
| Voltage Protection (27/59) | Overvoltage, undervoltage, zero-sequence overvoltage |
| Thermal Overload (49) | Transformer winding thermal monitoring |
| Breaker Failure (50BF) | Circuit breaker failure protection |
| Arc Protection (Optional) | Up to 3 detection channels for switchgear compartments |
| I/O and Communication | Details |
|---|---|
| Digital Inputs | Typically 16 (configurable) |
| Digital Outputs | Typically 10 (configurable) |
| Ethernet Ports | Dual (IEC 61850 Ed.2, DNP3.0 TCP, Modbus TCP) |
| Optical Ports | IEC 61850-9-2 LE Sampled Values, IEEE C37.94 teleprotection |
| Serial Ports | IEC 60870-5-103, Modbus RTU |
Industry / Application
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Utility substations – Backup protection for power transformers and outgoing transmission lines (≤245 kV)
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Industrial power systems – Main and backup protection for critical transformers in chemical plants, refineries, and steel mills
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Renewable energy facilities – Step-up transformer protection in wind farms and solar PV plants
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Critical infrastructure – Subways, hospitals, data centers, and municipal power distribution requiring high supply reliability
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