The Thyrtronic NV10P is a digital protection and control relay designed for electrical networks in industrial systems, photovoltaic plants, and MV/LV substations.

This device performs essential functions of monitoring, protection, and control, ensuring system safety by detecting anomalies such as overvoltage, undervoltage, and grid faults.

Equipped with a front LCD display and keypad, it allows direct configuration of operating parameters and real-time visualization of system status and alarms.

⚙️ Main Functions

• Voltage protection (overvoltage / undervoltage)
• Continuous electrical network monitoring
• Control of opening/closing commands
• Alarm and fault signaling
• Operator interface via display and keypad
• Communication with external systems (front port)

🔌 Technical Features

• Model: NV10P
• Auxiliary power supply: 110 – 230 V AC/DC
• Nominal voltage: 100 V

User Interface:

• LCD display
• Keypad with function buttons
• Status LEDs: ON / START / TRIP

Communication:

• Front communication port (RJ type for configuration)

Installation:

• Electrical panels / substations

🧠 Operation

The relay continuously monitors grid parameters:

• Measures voltage and electrical conditions
• Compares values with configured thresholds
• Activates protection (TRIP) in case of anomalies
• Controls protection devices (circuit breakers)

👉 Ensures automatic protection of the electrical system

⚠️ Typical Faults

• Unwanted or false trips
• Failure to trip during faults
• Display malfunction
• Communication or configuration issues
• Incorrect voltage measurements

🔧 Problems Solved

• Electrical network protection
• Prevention of damage to inverters and equipment
• Automatic handling of grid anomalies
• Improved system safety and control

🏭 Applications

• Photovoltaic systems
• MV/LV transformer substations
• Industrial systems
• Protection panels
• Power distribution networks

🧩 Main Components

• LCD display
• Control keypad
• Status LEDs (ON / TRIP / START)
• Internal microcontroller
• Communication interface
• Measurement and protection circuits

📦 Product Condition

• Used / refurbished device
• Complete with front panel
• Professional technical spare part

💡 Summary

The Thyrtronic NV10P is a reliable digital protection relay, essential for:

✔ Electrical system safety
✔ Grid monitoring
✔ Protection of inverters and connected loads