Description
Model: REX010 HESG324426R0001
Brand: ABB
Series: ABB REX Generator Earth Fault Protection Unit Series
Core Function: Provides full-range stator ground fault protection for generators
Type: Generator Ground Fault Protection Module
Key Specs: 36–312VDC wide power range, 100% stator winding protection, high-frequency signal injection
Supply Status: In stock
Stock: Available
Warranty: 1 year
Ship From: China
ABB REX010 HESG324426R0001
Product System Integration Overview
The ABB REX010 HESG324426R0001 is a professional high-performance earth fault protection unit specially developed for medium and high-voltage generator sets in power generation industries. As a core auxiliary protection component of generator relay protection systems, it works in tandem with ABB REG216 and REG316 series protection relays and REX011 injection transformers to build a complete stator ground fault protection system. This module adopts advanced high-frequency signal injection technology, breaking the limitation of traditional protection devices that cannot detect dead-zone faults. It features excellent adaptive compatibility with various mainstream generator unit configurations and power plant automation systems, supporting seamless system docking and integrated debugging. Widely used in new power station protection system construction, old generator protection device upgrading, and faulty protection unit replacement projects, it effectively fills the technical gap of full-coverage stator winding safety protection.
Detailed Product Functionalities
This dedicated generator protection module integrates high-frequency signal injection, real-time fault monitoring, intelligent judgment protection and full-cycle self-inspection to achieve comprehensive safety protection for generator stator windings. It supports 100% full-range protection of generator stator windings, including neutral point dead zones that cannot be covered by conventional protection methods, thoroughly eliminating protection blind spots. By continuously injecting stable high-frequency detection signals into the generator winding system, it can accurately capture subtle ground fault signals during generator static state, startup operation and full-load operation. Once a ground fault is detected, the module will immediately output protection instructions, cooperate with the relay system to complete tripping and isolation actions, and prevent generator winding burnout and equipment damage caused by long-term fault accumulation. In addition, it realizes real-time supervision of injection signal amplitude and frequency, as well as continuous monitoring of the primary grounding system, and automatically records fault data and operation logs to provide accurate basis for post-fault analysis and daily system maintenance.
ABB REX010 HESG324426R0001
Product Features & Technical Strengths
The ABB REX010 HESG324426R0001 protection module boasts innovative detection technology, ultra-wide working adaptability and ultra-high operational reliability, leading the industry in generator ground fault protection performance. Different from traditional fundamental frequency protection devices, its high-frequency injection detection technology realizes zero-blind-spot protection, greatly improving the safety redundancy of generator equipment. The ultra-wide 36–312VDC DC power supply adaptation range perfectly matches various power plant battery power supply environments, avoiding equipment shutdown caused by voltage fluctuation. Adopting industrial-grade anti-interference circuit design and electromagnetic shielding technology, it can resist strong electromagnetic interference in complex power plant environments and maintain stable detection accuracy for a long time. Equipped with a full-cycle self-supervision mechanism, it can automatically identify signal anomalies and circuit faults of the device itself, realizing early fault warning. The compact modular structure simplifies on-site installation and wiring, supports fast plug-and-play replacement, and effectively reduces power plant equipment maintenance downtime and operation risks.
Industrial Application Scenarios
This high-reliability generator ground fault protection unit is mainly oriented to various large and medium-sized power generation industrial scenarios that require high-precision generator safety protection. It is widely applicable to thermal power generating unit protection systems, hydropower generator safety monitoring platforms, industrial self-provided power station generator protection equipment, new energy complementary power generation units and municipal key power supply power plant protection systems. As a key core component of the ABB generator protection series, it optimizes the safety protection system architecture of power generation equipment, effectively reduces the failure rate of generator stator winding faults, ensures the safe, stable and long-term operation of power generation units, and improves the overall operational safety level of power plant automation systems.
