Description
ABB 1MRS050729
Technical Specifications:
- Brand: ABB
- Model: 1MRS050729
- Product Type: Protection and Control Module
- System Application: Power Automation and Substation Control
Functional Features:
- Advanced Protection Algorithms: Executes overcurrent, earth fault, and differential protection logic.
- High-Speed Tripping: Minimizes fault clearing time to protect expensive equipment.
- Event Recording: Captures and stores fault waveforms and sequence of events for post-fault analysis.
Application Scenarios:
- Medium voltage switchgear protection.
- Transformer and motor protection.
- Industrial power distribution substations.
Performance Parameters:
- Response Time: Millisecond-level fault detection and relay output activation.
- Measurement Accuracy: High-precision current and voltage sampling.
Material Composition & Structural Features:
- Robust Design: Built to withstand high electromagnetic interference in switchgear environments.
- Secure Connectors: High-reliability backplane connections for critical tripping circuits.
Working Principle:
The module continuously samples AC voltage and current waveforms. Its internal DSP calculates RMS values and compares them against configured protection curves. If a fault is detected, it issues a trip command to the circuit breaker.
Installation Requirements:
- Must be installed by certified protection engineers.
- Verify CT and VT polarity and ratios before commissioning.
Usage Precautions:
- Never bypass protection logic during normal operation.
- Regularly test the module using secondary injection testing equipment.
