ABB Relion ® REU615 Voltage Protection and Control Device
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作者:FAN
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发布时间 :2025-06-30
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117 次浏览:
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REU615 is ABB Relion ® The 615 series of voltage protection and control intelligent electronic devices (IEDs) are suitable for voltage protection, automatic voltage regulation, and related control scenarios in medium voltage power grids. Its core features include:
Dual standard configuration:
Configuration A: Focused on voltage/frequency protection, synchronous inspection, and load shedding, suitable for power grids with distributed generation.
Configuration B: For automatic voltage regulation of transformers with load tap changers, it integrates overcurrent and thermal overload protection.
Hardware design: Adopting a withdrawable plug-in structure, supporting standard/wide size chassis, compatible with IEC 61850 communication protocol, supporting Rogowski current sensors and digital switch devices.
Function lockout: To ensure the reliability and safety of the synchronization check function, the function will be locked when some abnormal situations occur. For example, when the primary voltage transformer fuse is detected to be blown (corresponding to X130: BI1), or a miniature circuit breaker fault is detected from the secondary voltage measurement circuit on the line or bus side (corresponding to X130: BI2 or X130: BI3), the synchronization check function (SECRSYN) will be immediately locked, prohibiting the circuit breaker closing operation, thereby avoiding network interconnection in abnormal situations and ensuring the safe and stable operation of the power system.
