ABB | RED615| Line Differential Protection And Control

Overview:
The RED615 is designed for utility and industrial power systems, including radial, looped, and meshed distribution networks with or without distributed power generation. It is also suitable for line differential protection with a transformer within the protection zone. The relay communicates between substations via fiber optic links or galvanic pilot wires. Part of ABB’s Relion® product family, the 615 series relays are compact and have a withdrawable-unit design, adhering to the IEC 61850 standard for substation automation.
Functions:
• Three-Phase Overcurrent Protection:
◦ Low Stage (PHLPTOC1): 3I> (1), 51P-1 (1)
◦ High Stage (PHHPTOC1, PHHPTOC2): 3I>> (1, 2), 51P-2 (1, 2)
◦ Instantaneous Stage (PHIPTOC1): 3I>>> (1), 50P/51P (1)
• Earth-Fault Protection:
◦ Low Stage (EFLPTOC1, EFLPTOC2): I0> (1, 2), 51N-1 (1, 2)
◦ High Stage (EFHPTOC1, EFHPTOC2): I0>> (1, 2), 51N-2 (1, 2)
◦ Instantaneous Stage (EFIPTOC1): I0>>>, 50N/51N
Power Supply:
◦ Nominal Auxiliary Voltage: 100, 110, 120, 220, 240 V AC, 50 and 60 Hz; 24, 30, 48, 60 V DC
◦ Maximum Interruption Time: 50 ms at Un
◦ Auxiliary Voltage Variation: 38…110% of Un (38…264 V AC), 50…120% of Un (12…72 V DC)
◦ Start-Up Threshold: 19.2 V DC (24 V DC × 80%)
◦ Burden: <13.0 W (nominal)/<18.0 W (max.) DC, <16.0 W (nominal)/<21.0 W (max.) AC
◦ Ripple: Max 15% of DC value (100 Hz)

Overview
The ABB RED615 is a versatile, two-end line differential protection and control relay. It provides comprehensive protection, control, measurement, and supervision for overhead line and cable feeders. This relay is ideal for utility and industrial power distribution networks, including radial, looped, and meshed networks, with or without distributed generation.
Technical Specifications
Protection Features
◦ Main Protection: Overhead lines and cable feeders in distribution networks.
◦ Backup Protection: Current-based protection for remote backup (downstream protection relays) and local backup for line differential main protection.
◦ Standard Configurations:
◦ Configuration D and E include directional overcurrent and voltage-based protection.
◦ Adaptable to isolated neutral, resistance-grounded, compensated (impedance grounded), and solidly grounded networks.
Communication Protocols
◦ IEC 61850 (Edition 2): Full support for modern substation automation.
◦ IEC 61850-9-2 LE: Process bus communication.
◦ Modbus®: Open protocol support.
◦ DNP3: Standard communication protocol for substation automation.
Customization and Configuration
◦ Signal Matrix and PCM600: Allows for easy customization of signal connections and relay functions.
◦ Logic Functions: Create multi-layer logic functions using timers, flip-flops, and protection function blocks to meet user-specific requirements.
Dimensions
◦ Width: Frame 177 mm, Case 164 mm
◦ Height: Frame 177 mm (4U), Case 160 mm
◦ Depth: 201 mm (153 + 48 mm)
◦ Weight:
◦ Complete protection relay: 4.1 kg
◦ Plug-in unit only: 2.1 kg
Power Supply
◦ Type 1: 100, 110, 120, 220, 240 V AC, 50/60 Hz
◦ Type 2: 24, 30, 48, 60 V DC; 48, 60, 110, 125, 220, 250 V DC
◦ Maximum Interruption Time: 50 ms at nominal voltage (Un)
◦ Auxiliary Voltage Variation:
◦ AC: 38% to 110% of nominal voltage (38-264 V AC)
◦ DC: 50% to 120% of nominal voltage (12-72 V DC for 48 V DC systems; 38.4-300 V DC for 220 V DC systems)
Power Consumption
◦ DC Power:
◦ Quiescent: <13.0 W
◦ Maximum: <18.0 W
◦ AC Power:
◦ Quiescent: <16.0 W
◦ Maximum: <21.0 W
◦ Ripple in DC Voltage: Maximum 15% at 100 Hz.
Fuse Type
◦ Fuse: T4A/250 V