Description

The ABB AV94A HESG440940R11 HESG216791 A is a sophisticated control and protection module designed for high-voltage circuit breakers within ABB’s comprehensive power distribution and protection systems. This advanced module serves as a critical component in electrical protection schemes, providing intelligent control, monitoring, and protection functions for high-voltage switching equipment in utility and industrial power systems. The ABB AV94A HESG440940R11 HESG216791 A integrates advanced microprocessor technology with robust industrial design to deliver reliable operation in demanding electrical environments. It features comprehensive protection functions including overcurrent protection, differential protection, and advanced arc-flash detection capabilities, ensuring maximum safety for both electrical equipment and personnel while maintaining power system reliability.

Engineered for seamless integration into ABB’s protection relay family, this module represents the culmination of ABB’s expertise in power system protection and automation. The ABB AV94A HESG440940R11 HESG216791 A typically incorporates sophisticated communication capabilities enabling real-time data exchange with supervisory control systems, facilitating condition-based maintenance and advanced grid management functionalities. Its robust construction ensures reliable performance in harsh substation environments where electromagnetic interference, temperature variations, and mechanical stress are common challenges. The module’s design emphasizes both functional reliability and user-friendly operation, featuring intuitive interfaces for configuration and comprehensive diagnostic capabilities that simplify maintenance and troubleshooting procedures.

AV94A HESG440940R11 HESG216791 A ABB

Technical Specifications

Parameter Name	Parameter Value
Product Model	AV94A HESG440940R11 HESG216791 A
Manufacturer	ABB
Product Type	High-Voltage Circuit Breaker Control and Protection Module
Rated Operational Voltage	110-250 V AC/DC
Frequency	50/60 Hz
Protection Functions	Overcurrent, Differential, Arc Protection
Control Inputs	12 binary inputs (programmable)
Output Relays	8 changeover contacts (6A, 250V AC)
Communication Interfaces	Ethernet, RS485, IEC 61850, Modbus
Operating Temperature	-40°C to +85°C
Storage Temperature	-50°C to +95°C
Humidity Resistance	95% RH (non-condensing)
Dielectric Strength	2.5 kV AC (50Hz) for 1 minute
Measurement Accuracy	Class 1.0 per IEC 60255-121
Response Time	<20 ms for protection functions
Power Consumption	<15 W (normal operation)
Dimensions	177 x 177 x 160 mm (W x H x D)
Weight	Approximately 2.5 kg
Protection Degree	IP54 (front panel), IP20 (terminal area)

Main Features and Advantages

The ABB AV94A HESG440940R11 HESG216791 A offers advanced protection functionality through its sophisticated algorithms that provide selective and fast fault clearance while maintaining system stability. The module features comprehensive self-supervision systems that continuously monitor hardware and software integrity, ensuring high availability and reliability. Adaptive protection characteristics automatically adjust to changing network conditions, providing optimal protection coverage during different system configurations. The arc protection functionality uses advanced light and overcurrent detection principles to minimize arc-flash damage, significantly enhancing personnel safety and equipment protection.

Advanced communication capabilities enable seamless integration with modern substation automation systems using IEC 61850 protocols, providing standardized data models and communication services for interoperability. The module’s flexible configuration allows customization for specific application requirements through user-friendly software tools, reducing engineering time and minimizing configuration errors. The robust mechanical design ensures reliable operation in demanding environmental conditions, with excellent immunity to electromagnetic interference and wide operating temperature range. The ABB AV94A HESG440940R11 HESG216791 A also features comprehensive event recording and disturbance recording capabilities, providing valuable data for post-event analysis and system optimization.

Application Field

The ABB AV94A HESG440940R11 HESG216791 A is primarily deployed in high-voltage power distribution systems for critical infrastructure applications. In electrical utility substations, the module provides protection and control for circuit breakers in transmission and distribution networks ranging from 6 kV to 36 kV systems. Industrial power systems utilize this protection module in manufacturing facilities, chemical plants, and mining operations where reliable power supply is essential for continuous production processes. The oil and gas industry employs the ABB AV94A HESG440940R11 HESG216791 A for protecting electrical infrastructure in refineries, offshore platforms, and pipeline pumping stations where equipment failure could have severe consequences.

The module is extensively used in data center power distribution systems where high availability and protection coordination are critical for maintaining uninterrupted operations. In transportation infrastructure, the ABB AV94A HESG440940R11 HESG216791 A protects electrical systems in airports, railway electrification, and metro systems where power reliability directly impacts public safety and service continuity. The renewable energy sector utilizes these protection modules in solar and wind farm collector systems, providing reliable protection for power collection and distribution networks. The building services industry also employs this technology for protecting critical power distribution in hospitals, commercial complexes, and high-rise buildings where electrical safety and reliability are paramount.

AV94A HESG440940R11 HESG216791 A ABB

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