AFR-S Power Generation Arc Flash Protection Relay For MV Power Distribution Applications
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The AFR-S Power Generation Arc Flash Protection Relay is designed for medium voltage (MV) power distribution applications, focusing on the detection and protection against arc faults in electrical systems. This innovative relay safeguards both equipment and personnel by monitoring critical parameters such as current, voltage, and electric power. In the event of an arc fault, it swiftly disconnects the power supply to mitigate the risk of electrical fires, ensuring safety and reliability.
Utilizing a dual-criteria approach, the AFR-S relay combines arc light detection with overcurrent detection, providing rapid protection and high reliability. Its complete digital design and strong electrical performance make it a vital component in control cabinets, transformers, generators, motors, and other electrical equipment.
Specifications
| Attribute | Details |
|---|---|
| Power Supply | AC/DC 85 ~ 265V |
| Consumption | ≤ 8W |
| Current Rated | 5A/1A |
| Measurement Range | Protection current: 0~20 A |
| Channels Number (Arc Signal Input) | 12-48 channels (optional) |
| Sensor Type | Optical fiber |
| Operating Voltage (Relay Output) | AC 250V/8A |
| Isolation Method | Photoelectric isolation, isolation voltage 2500V |
| Action Time Tolerance | Pure arc protection: ≤10ms; Double criterion protection: ≤20ms |
| Working Environment | -10 ~ 55°C / < 93% RH (Non-condensing) |
| Storage Environment | -30 ~ 70°C / < 70% RH (Non-condensing) |
Additional Information
Features:
- Complete digital design with a simple principle
- Strong electrical performance
- Comprehensive fault information recording
- High reliability with double criteria for over-current and arc detection
- Optical fiber transmission with strong resistance to electromagnetic interference
- Programmable logic for trip exit
- Fast exit tripping with a short total fault clearing time
Applications:
- Reduce harm from arc light to personnel
- Minimize equipment damage from arc short-circuit faults
- Avoid transformer damage due to bus failures
- Protect DC systems in substations
- Ensure stable operation in power substations
- Applicable in thermal power plant electrical switchgear
- Suitable for wind farms and photovoltaic station switchgear
- Effective for large municipal engineering projects
