Key Features and Functional Highlights:
- All-in-One Solution: Integrates motor protection, control, measurement, and monitoring functions, reducing the need for separate devices and simplifying system architecture.
- IEC 61850 Native Support: Designed from the ground up to support IEC 61850 Edition 1 and 2, including GOOSE (Generic Object Oriented Substation Event) messaging for fast horizontal communication and IEC 61850-9-2 LE for sampled values over process bus.
- Advanced Redundancy: Supports high-availability network protocols such as HSR (High-availability Seamless Redundancy) and PRP (Parallel Redundancy Protocol), ensuring zero-time recovery in case of network failures.
- Precise Time Synchronization: Features support for IEEE 1588 v2 (PTP), SNTP, and IRIG-B for high-precision time synchronization across the substation.
- Flexible Configuration: Available in four standard configurations (A, B, C, J) that can be easily customized using ABB’s PCM600 configuration tool. Users can create complex logic using timers, triggers, and multi-level logic blocks to meet specific application needs.
- User-Friendly Interface: Equipped with a large graphical LCD display that shows a customizable single-line diagram (SLD). It can be accessed locally or remotely via a web browser-based HMI.
- Plug-in Design: Features a withdrawable plug-in unit for swift installation, testing, and maintenance, minimizing downtime.
- Comprehensive Self-Supervision: Continuously monitors its own health, including trip circuit integrity, CT/PT circuit status, and internal diagnostics.
Protection and Control Functions:
The REM615 provides a wide array of protection functions, configurable based on the selected standard configuration:
- Standard Motor Protection:
- Thermal Overload Protection (ANSI 49): Simulates motor heating based on current and thermal capacity.
- Locked Rotor / Stall Protection (ANSI 48/51LR): Detects excessive current during motor start-up or running.
- Start-up Time Supervision: Monitors the time taken for the motor to accelerate.
- Reversal / Phase Failure Protection (ANSI 46): Detects negative sequence currents.
- Load Loss / Underload Protection: Detects when a motor is running without a load.
- Electrical Protection:
- Overcurrent Protection (ANSI 50/51): Instantaneous and time-delayed phases and ground fault protection.
- Voltage Protection (ANSI 27/59): Undervoltage, overvoltage, and phase sequence protection.
- Frequency Protection (ANSI 81): Overfrequency and underfrequency protection with rate-of-change (df/dt) detection.
- Optional/Advanced Functions:
- Arc Flash Protection: Can be equipped with high-speed inputs for arc light sensors to quickly clear internal faults.
- Sensitive Earth Fault Protection: Utilizes core balance CTs or summation of phase currents.
- RTD and mA Input: Optional module for direct measurement of motor winding and bearing temperatures (up to 6 RTDs and 2 mA inputs).
Technical Specifications:
- Product Family: Relion® 615 Series Numerical Relays
- Application: Medium and High Voltage Motor Protection and Control
- Communication Protocols:
- Primary: IEC 61850-8-1 (GOOSE, MMS), IEC 61850-9-2 LE
- Secondary: Modbus® (TCP/IP, RTU), DNP3, IEC 60870-5-103
- Redundancy: HSR, PRP, RSTP
- Time Synchronization: IEEE 1588 v2, SNTP, IRIG-B
- Inputs/Outputs:
- Analog: 3 Phase Currents (3I), Residual/Neutral Current (Io), 3 Phase Voltages (UL1, UL2, UL3) – availability depends on configuration
- Digital: Multiple binary inputs for status monitoring and control (e.g., trip commands, breaker position). Multiple binary outputs for tripping and indication.
- Extensible: Can be expanded with external I/O modules (e.g., RIO600).
- Power Supply: Typically 24/48/110/125/220/250 V DC or 110/120/220/230/240 V AC (Universal).
- Mounting: Panel mounting or withdrawable unit in a cubicle.
- Environmental: Designed for indoor switchgear applications, operating within standard industrial temperature ranges.
- Certifications: Complies with relevant IEC standards for protection relays, EMC, and insulation.
Application Scenarios:
The REM615 is widely used in various industrial sectors where reliable motor operation is critical:
- Manufacturing and Processing Plants: For motors driving pumps, conveyors, crushers, mixers, fans, and compressors.
- Water and Wastewater Treatment: Protecting large pumps and aeration blowers.
- Mining and Metals: For crushers, mills, and heavy-duty conveyors.
- Power Generation: For auxiliary motors like boiler feed pumps, condensate pumps, and cooling tower fans.
- Oil and Gas: For pipeline pumps and compressor stations.
- Infrastructure: In substations and utility distribution networks for public and industrial power supply.
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