Brand:Woodward Item No.:MRI4A0AB Product Origin:USA Product Dimensions:250 × 130 × 70 mm Product Weight:0.85 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Woodward MRI4A0AB is a high-performance digital protection relay designed to safeguard electrical distribution systems in industrial and utility environments. As part of the MRI4 series, it delivers precise fault detection and reliable trip logic to ensure safe and efficient system operation.
Technical Specifications
Parameter
Specification
Product Type
Digital Protection Relay
Model
MRI4A0AB
Brand
Woodward
Function
Feeder and electrical system protection
Protection Features
Overcurrent, over/undervoltage, phase imbalance
System Type
Three-phase power systems
Configuration
Programmable protection settings
Installation
Panel-mounted
Operating Temperature
-40°C to +70°C
Dimensions
250 × 130 × 70 mm
Weight
0.85 kg
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Applications
• Feeder protection in industrial and utility power distribution systems
• Electrical fault detection in substations and switchgear panels
• Power generation plants for generator, transformer, and line protection
• Oil & gas facilities requiring reliable electrical system safeguarding
• Commercial and industrial buildings with critical power infrastructure
• Backup protection in complex electrical networks and automation systems
Key Advantages
• Advanced protection against overcurrent, overvoltage, undervoltage, and phase imbalance
• High-speed fault detection minimizing equipment damage and downtime
• Digital signal processing for accurate and stable protection performance
• Flexible configuration adapting to various feeder and network requirements
• Compact and rugged design suitable for industrial panel integration
• Reliable operation in harsh environments with temperature and vibration resistance
• Supports long-term stable performance in mission-critical power systems
Technical FAQs
1. What is the main function of this relay?
It protects electrical distribution systems by detecting faults and triggering trip actions.
2. What types of faults can it detect?
It detects overcurrent, short circuit, earth fault, voltage abnormalities, and phase imbalance.
3. Where is it typically installed?
It is installed in switchgear panels, substations, and industrial control cabinets.
4. Is it suitable for three-phase systems?
Yes, it is designed for three-phase electrical protection applications.
5. Does it support programmable settings?
Yes, protection parameters can be configured based on system requirements.
6. Is it used for generator protection?
Yes, it can serve as backup protection for generators and transformers.
7. Does it provide real-time monitoring?
Yes, it supports continuous monitoring of electrical parameters.
8. Can it operate in harsh environments?
Yes, it is built for industrial environments with high reliability.
9. Does it include communication capabilities?
Yes, it supports integration into control and monitoring systems depending on configuration.
10. What is its key benefit?
It ensures fast fault isolation, improving system safety and reducing downtime.
