Key Features:

1. Current Monitoring:
   • Overcurrent and Undercurrent Detection: Continuously monitors current levels and triggers an alarm or control action if the current exceeds or falls below the set thresholds.
   • Adjustable Thresholds: Customizable settings allow users to define specific current limits according to their needs.
2. Phase Monitoring:
   • Phase Loss and Sequence Detection: Ensures proper phase sequence and detects the loss of any phase in three-phase systems, preventing potential damage to equipment.
   • Phase Asymmetry Detection: Identifies imbalances between phases, which can indicate issues such as phase failure or uneven load distribution.
3. Control Functions:
   • Relay Output: Controls external devices like circuit breakers, alarms, or contactors based on current conditions.
   • Adjustable Delay Settings: Provides delay settings to prevent false triggering due to transient current fluctuations.
4. Digital Display and Indicators:
   • Real-Time Current Readout: Displays current values for easy monitoring and quick diagnostics.
   • LED Indicators: Show operational status and fault conditions clearly.
5. Programmable Settings:
   • Customizable Parameters: Users can program specific current thresholds, delay times, and control logic to tailor the relay to their specific applications.
   • Memory Function: Retains settings and operational status during power outages.
6. Durability and Reliability:
   • Robust Construction: Built to handle harsh environments and ensure long-term reliability and performance.
   • Electrical Isolation: Protects the control circuit from the monitored current, ensuring safe operation.

Benefits:

• Enhanced Equipment Protection: Prevents damage to electrical devices by detecting and reacting to abnormal current conditions.
• Operational Stability: Maintains stable operation by keeping current levels within safe limits, reducing the risk of equipment failure.
• Energy Efficiency: Improves overall system efficiency by preventing power losses and minimizing downtime.
• Application Versatility: Suitable for a wide range of applications, including industrial automation, motor protection, power distribution, and renewable energy systems.

Applications:

• Motor Protection: Monitors and safeguards motors from overcurrent, undercurrent, and phase-related issues.
• Power Distribution: Ensures stable and safe current levels in power distribution systems.
• Industrial Processes: Controls and protects industrial equipment and processes by monitoring current levels.
• Renewable Energy: Protects inverters and other equipment in solar and wind power installations by monitoring current flows.

Example Models in the PRI Series:

1. ELKO EP PRI-32: A versatile current relay with comprehensive current and phase monitoring capabilities, suitable for a range of applications.
2. ELKO EP PRI-52: An advanced model featuring multiple relay outputs and enhanced programmability for more complex systems.
3. ELKO EP PRI-53: Designed specifically for three-phase systems, offering robust protection and precise monitoring of current and phase conditions.

Installation and Programming:

• Installation: Mount the PRI current relay in an appropriate location within the electrical panel. Follow the provided wiring diagram to connect it to the monitored current and the controlled devices. Ensure all connections are secure and correctly installed.
• Programming: Use the digital display and control buttons to set the desired current thresholds, delay times, and other parameters. Refer to the user manual for detailed instructions on configuring and operating the specific model.

Would you like more detailed information on a specific ELKO EP PRI current relay model, or assistance with installation and programming?