ABB REM615 series protection and measurement control devices
The REF615IEC feeder protection and measurement and control unit is a specialized feeder protection and measurement and control unit specifically designed to protect, control, measure and monitor public and industrial distribution systems. The REF615 can be adapted to both neutral ungrounded and neutral resistance or impedance grounded networks. In addition, the REF615 can also be used for ring mesh distribution networks or radiation network protection, using the device’s advanced interstation communication capabilities. The protected grid includes multiple feeds and distributed generation.
REB611 is used in high-impedance applications in power substations and industrial power systems. In addition, the protective relay can be used to limit ground fault and residual ground fault applications for the protection of generators, motors, transformers and reactors.
Products: REF611,REF615/REF620, REB611
REM615 Motor protection and measurement control module: Mainly used for the protection of asynchronous motors in manufacturing and processing industries. It is usually used in combination with high-voltage motors controlled by circuit breakers or contactors, as well as large and medium-sized low-voltage motors controlled by contactors. It is equipped with four standard configurations, integrating protection, control, measurement and monitoring functions, and can provide protection such as motor start-up, load loss monitoring, thermal overload and motor reverse rotation. It supports protocols such as IEC 61850, DNP3, IEC 60870-5-103 and Modbus. It features a plug-in design and a large LCD display with editable single-line graphs for convenient operation and access.
REU615 Voltage Protection measurement and control Module: It is a dedicated voltage protection measurement and control device, offering two standard configuration options. Standard configuration A can be applied in power and industrial distribution networks with distributed power sources. Based on voltage and frequency protection schemes, it can achieve busbar voltage monitoring, low-frequency load reduction and load recovery, etc., and has protection functions such as overfrequency, low frequency and overvoltage. Standard configuration B can be applied to the voltage automatic regulation application solution of transformers with load voltage regulation mechanisms, featuring three-phase non-directional overcurrent protection, overvoltage and low-voltage protection, etc. Both configurations are equipped with functions such as circuit breaker control, measurement and status monitoring.
RET615 Transformer protection and measurement control module: It is a dedicated protection and control device for power transformers, unit transformers and step-up transformers (including generator-transformer groups). There are eight standard configurations that can match the most commonly used vector groups of power transformers and make the neutral point grounding principle of the applied transformer coordinated with the relevant grounding fault protection scheme. It is equipped with three-phase multi-slope stable transformer differential protection and instantaneous protection, and can provide rapid and selective phase-to-phase short circuit, winding inter-turn fault and bushing flashover protection. It also includes thermal overload protection function as well as backup protection functions such as multi-stage short circuit and phase overcurrent.