3 phrase Adjustable Current and voltage

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### Tense AVR-80T Three Phase Adjustable Current & Voltage Protection Relay

This is a high-performance, DIN-rail mounted digital protection relay designed to monitor and safeguard three-phase electrical systems against unstable power conditions. It acts as a comprehensive defense mechanism for industrial machinery, commercial equipment, or entire distribution boards.

 * **Brand:** Tense

 * **Model:** AVR-80T

 * **Type:** Three Phase Adjustable Current & Voltage Relay (80\text{A} capacity)

### Key Features & Specifications

 * **Real-Time Dual Monitoring:** Equipped with six digital LED screens. The top red displays show real-time current amperage (\text{A}) for lines L1, L2, and L3, while the bottom green displays show the real-time voltage (\text{V}) across all three phases.

 * **Comprehensive Electrical Protection:**

   * **Overcurrent (A>):** Safeguards systems from overloading by cutting power if the current exceeds safe thresholds.

   * **Overvoltage (U>):** Protects equipment from severe voltage surges or grid spikes.

   * **Undervoltage (U<):** Prevents damage to motors and electronics caused by voltage drops or brownouts.

 * **Fully Adjustable Parameters:** Features 5 manual control knobs on the front panel to customize safety tolerances:

   * **A> (Current Limit):** Adjustable overcurrent threshold (from 1\text{A} up to 80\text{A}).

   * **U> (Overvoltage Limit):** Upper voltage threshold selection.

   * **U< (Undervoltage Limit):** Lower voltage threshold selection.

   * **DT (Delay Time):** Configurable trip delay time (0.1 to 20 seconds) to prevent unnecessary tripping from momentary fluctuations.

   * **RT (Reset Time):** Configurable recovery/reconnect delay time (0.1 to 300 seconds) ensuring the grid stabilizes before power is restored.

 * **Status Indicators:** LED indicators for fault types (A>, U>, U<) and an OUT light to signify when power output is active.

 * **Terminal Layout:** Dedicated Input (Top) and Output (Bottom) terminal screws for Neutral (\text{N}) and Three-Phase lines (\text{L1}, \text{L2}, \text{L3}).