Product Overview
The ALSTOM MVAW11B1AB0513Ais a sophisticated numerical voltage protection relay designed for comprehensive voltage monitoring and protection in electrical power systems.This advanced protection unit forms part of ALSTOM’s extensive protection relay portfolio,providing multi-functional voltage protection for generators,transformers,and distribution networks.The MVAW11B1AB0513Acombines precision measurement technology with advanced protection algorithms to deliver reliable performance in critical power system applications where voltage stability and equipment protection are paramount.
In electrical power systems,the ALSTOM MVAW11B1AB0513Atypically serves as the primary voltage protection device for critical assets,implementing comprehensive protection functions including overvoltage protection,undervoltage protection,and voltage unbalance detection.The relay’s advanced measurement technology ensures accurate voltage monitoring while its configurable logic programming capabilities allow for customized protection schemes tailored to specific system requirements.The MVAW11B1AB0513Ademonstrates exceptional performance in utility substations,industrial power systems,and renewable energy installations,where its high-speed operation and secure blocking logic prevent unnecessary trips during system transients.Its rugged construction and electromagnetic compatibility make it suitable for installation in demanding substation environments.
Technical Specifications
Parameter Name
Parameter Value
Product Model
MVAW11B1AB0513A
Manufacturer
ALSTOM
Product Type
Numerical Voltage Protection Relay
Rated Voltage
110V AC(66-120V range)
Voltage Inputs
3 phase-to-phase,1 residual
Frequency Range
45-65Hz(adjustable)
Setting Ranges
Overvoltage:50-150V in 0.1V steps
Undervoltage:10-100V in 0.1V steps
Accuracy Class|0.5%of setting
Operating Time|<20ms for overvoltage conditions
Reset Ratio|98-102%of set value
Communication|RS485,Ethernet
Protocols|Modbus,IEC 60870-5-103
Event Records|100 events with time stamp
Fault Records|5 oscillographic records
Power Supply|24-250V DC/AC
Operating Temperature|-25°C to+55°C
Storage Temperature|-40°C to+70°C
Protection Degree|IP54
Dimensions|177mm×177mm×220mm
Weight|4.3kg
Standards|IEC 60255,IEEE C37.90
Main Features and Advantages
The ALSTOM MVAW11B1AB0513Aincorporates advanced voltage measurement algorithms that provide exceptional accuracy and stability across the entire operating range.The relay’s comprehensive protection package includes definite-time and inverse-time characteristics for overvoltage and undervoltage conditions,allowing precise coordination with other protective devices in the system.Advanced unbalance protection detects negative sequence voltage conditions that could cause equipment damage,with adjustable sensitivity to match specific application requirements.
Configuration flexibility is enhanced through the relay’s programmable logic functions,allowing custom protection schemes without additional hardware.The MVAW11B1AB0513Afeatures comprehensive event recording and oscillographic capture capabilities,enabling detailed post-event analysis and system troubleshooting.The unit’s dual communication ports support simultaneous connection to SCADA systems and local engineering tools,while the intuitive human-machine interface simplifies settings management.Automatic self-test routines continuously monitor relay health,detecting potential issues before they affect protection performance.The relay’s robust construction ensures reliable operation in electrically noisy substation environments.
Application Field
The ALSTOM MVAW11B1AB0513Afinds extensive application in electrical power systems requiring sophisticated voltage protection.In utility transmission and distribution networks,the relay protects transformers,capacitors,and feeders from voltage abnormalities.Industrial power systems utilize the MVAW11B1AB0513Afor generator protection,busbar monitoring,and critical motor protection applications.
The relay is particularly valuable in renewable energy installations,where it monitors grid connection points and protects power conversion equipment from voltage fluctuations.Mining operations employ the MVAW11B1AB0513Afor protection of high-voltage distribution systems and large motor loads.The relay’s comprehensive protection features make it suitable for railway electrification systems,where it monitors traction power supply quality and protects electrical equipment.Water treatment plants and pumping stations use the relay for monitoring incoming power quality and protecting process equipment.
Related Products
MVAW11B1AB0514A:Enhanced version with additional functions
MVAW11B1AB0512A:Basic version with standard features
MiCOM Px4x:Advanced protection relay series
VAMP:Voltage protection relays
VT Connection Kits:Voltage transformer interface
Test Equipment:Protection relay test sets
Software:Configuration and monitoring tools
Communication Modules:Protocol converters
Installation and Maintenance
Installation preparation:Before installing the MVAW11B1AB0513A,verify VT ratios and system parameters.Ensure proper grounding and use adequate cable separation between voltage circuits.Have configuration software and test equipment ready for commissioning.
Maintenance recommendations:Perform annual testing of all protection functions using secondary injection.Regularly review event records and verify settings match current system requirements.Maintain accurate records of all setting changes and perform firmware updates during planned outages.
Product Guarantee
We guarantee that every ALSTOM MVAW11B1AB0513Ais a genuine product manufactured to the highest quality standards.Our technical team provides comprehensive support including coordination studies,configuration assistance,and commissioning services to ensure optimal performance in your voltage protection application.All relays undergo rigorous testing to verify they meet original manufacturer specifications for reliability and performance in power system protection applications.
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