Description

The ABB REG216 is a microprocessor-based generator and motor protection relay from ABB’s Relion® 200 series, engineered for comprehensive electrical protection in power generation and industrial applications. This advanced device integrates 50+ protection functions—including differential (87G), overcurrent (50/51), reverse power (32), and loss-of-excitation (40)—into a single compact unit, providing critical asset safeguarding for synchronous machines up to 30 MVA. The REG216 features hardware-based differential protection with ultra-low operating time (<20>

As a cornerstone of ABB’s legacy protection portfolio, the REG216 combines robust hardware with user-friendly PCM600 software for configuration, event analysis, and setting management. Its modular design supports flexible I/O expansion (up to 14 binary inputs/10 outputs) and includes oscillographic fault recording for post-event analysis. The relay’s SIL 2-certified logic enables custom protection schemes via programmable FlexLogic™, making it indispensable for hydro, thermal, and industrial cogeneration plants requiring ANSI/IEEE-compliant protection.

Technical Specifications

Main Features and Advantages

Multi-tiered protection: Combines instantaneous (87G) and time-delayed functions (51V) with harmonic restraint to prevent maloperation during inrush conditions. Dual-setting groups adapt to generator synchronization/operation modes.
Advanced monitoring: Real-time metering (kW, kVAR, THD), thermal overload modeling, and torque calculation detect abnormal operating regimes before failures occur.
Cyber-secure operation: Role-based access control, IEC 62351-compliant encryption, and firmware signature verification protect against unauthorized access.
Seamless integration: IEC 61850 Ed.1/Ed.2 support (optional) enables future-proof substation automation. PCM600 software simplifies settings management with drag-and-drop logic editor.
High survivability: 100g shock resistance and 4 kV dielectric strength ensure reliability in switchgear environments.

Application Field

The ABB REG216 secures critical rotating machinery across industries:

Power Generation: Hydro/thermal generator protection (stator earth fault, unbalanced load, out-of-step) and grid synchronization monitoring.

Industrial Plants: Motor protection for >1 kV compressors, pumps, and fans – including start-up supervision and undercurrent lockout.

Marine/Offshore: Main turbine-alternator protection with corrosion-resistant coating (DNV-GL certified).

Cogeneration: Islanded operation mode detection and anti-islanding logic for CHP plants.

Mining: High-inertia crusher motor protection with customized acceleration timers.

Related Products

ABB REG670: Next-gen generator protection relay (IEC 61850 native)

ABB RET670: Transformer protection relay (complements REG216 in power plants)

ABB REC670: Feeder management controller (for switchgear integration)

ABB CMA42: Analog I/O module (expands REG216 signal acquisition)

ABB CMC 356: Test set (verifies REG216 logic and settings)

ABB PCM600: Configuration software (manages all Relion® relays)

ABB SPAJ 140C: Backup overcurrent relay (for redundancy)

Installation and Maintenance

Pre-installation preparation: Verify CT/PT ratios and burden compatibility. Ground relay via dedicated 6 mm² copper wire. Segregate AC/DC wiring using partitioned ducts (>100 mm spacing). Configure communication addresses before energizing.

Maintenance recommendations: Test protection functions annually using injection sets. Monitor self-supervision alarms (LED 6 = internal fault). Backup settings quarterly via PCM600. Replace backup battery (ER14250) every 5 years. Calibrate analog inputs per IEEE C37.90 standards.