ABB REU615C_D 615 Series Voltage Protection and Control Relay

FAQ

Q1: What communication protocols does the ABB REU615C_D support?
A1: It supports IEC 61850, IEC 60870-5-103, Modbus (RTU/ASCII/TCP), and DNP3 (serial and TCP/IP).

Q2: What is the mounting method of the REU615C_D?
A2: It is designed for flush-mounted installation with a withdrawable plug-in unit.

Q3: Does the REU615C_D support automatic voltage regulation?
A3: Yes, standard configuration B supports automatic voltage regulation for transformers with on-load tap changers.

Q4: What applications is the REU615C_D suitable for?
A4: It is ideal for medium-voltage switchgear, voltage supervision, load shedding, generator/motor voltage-frequency protection, etc.

Q5: Is frequency protection included in the device?
A5: Yes, configuration A includes up to 6 levels of frequency protection for monitoring and control.

Q6: Does it support event and disturbance recording?
A6: Yes, it includes a disturbance recorder with 12 analog and 64 binary channels, and logs up to 1024 events.

Q7: Is arc flash protection available?
A7: Yes, configuration A optionally supports arc flash detection using fiber-optic sensors for fast fault isolation.

Q8: How reliable is the device under harsh environmental conditions?
A8: With an operating range of -25°C to +55°C, <93% humidity, and compliance with IEC 60068 tests, it is highly reliable for industrial use.