TR ART3V Three Phase Voltage Frequency Relay Test System

The TR ART3V Three Phase Voltage Frequency Relay Test System is a versatile and high-precision instrument designed for testing, calibrating, and verifying voltage and frequency protection relays in three-phase electrical systems. Engineered for industrial and utility applications, it provides accurate simulation of voltage, frequency, and phase conditions to ensure relays respond correctly under normal and fault conditions.

Equipped with a user-friendly digital interface, the ART3V allows technicians to perform comprehensive tests quickly and reliably. It supports multiple relay types, including overvoltage, under voltage, frequency, and combined voltage-frequency relays, making it suitable for preventive maintenance, commissioning, and troubleshooting.

The system features programmable voltage and frequency outputs, precise phase angle control, and automatic test routines for efficient and repeatable measurements. Its robust construction and portable design make it ideal for both laboratory and field environments, helping engineers and electricians ensure the safety, accuracy, and reliability of critical electrical protection systems.

Key Features:

Three-Phase Testing – Supports accurate simulation of three-phase voltage and frequency conditions.
Voltage & Frequency Relay Support – Tests overvoltage, under voltage, frequency, and combined voltage-frequency relays.
Programmable Outputs – Adjustable voltage, frequency, and phase angles for precise testing.
Automatic Test Routines – Predefined and programmable sequences for efficient and repeatable measurements.
High Precision & Accuracy – Ensures reliable verification of relay operation under normal and fault conditions.
User-Friendly Digital Interface – Clear display and intuitive controls for fast test setup.
Portable & Robust Design – Suitable for both laboratory and field applications.
Ideal for Maintenance & Commissioning – Supports preventive maintenance, commissioning, and troubleshooting of protection relays.

Specifications

Voltage Output

• 3‑phase output from single‑phase supply (phase‑to‑neutral)

• Output voltage: 0–450 V phase‑to‑neutral

• Max power per phase: ~20 VA

• Individually adjustable for each phase: voltage, phase, and frequency (30–999.9 Hz)

• Phase shift range: ±180°

• High stability with low distortion output for relay testing

Frequency & Phase

• Variable frequency: 30–999.9 Hz

• Phase angle control: ±180°

• Full control of frequency and phase output for accurate relay simulation

Display & Interface

• Large 6.5″ back-lit color LCD for status, phasor diagrams, and menus

• Capacitive keypad and rotary encoder for easy navigation

• USB keyboard support for adding comments to tests

• USB data storage in CSV format for test results

Timing & Test Modes

• Multifunction internal timing system with flexible start/stop modes

• Fault Config Mode for advanced, timed sequences of voltage/frequency changes

• Phase Lock Mode to lock output to external reference for directional/distance relay tests

Supported Relay Types

• Under/over-frequency relays

• Under/over-voltage relays

• Synchronizing relays

• Rate-of-change-of-frequency (ROCOF) relays

• Vector surge relays

• Transducers and other protection relays requiring 1–3 voltage sources

• Can be paired with external current sources for testing directional, distance, phase angle, and power relays

Power Supply & Physical

• Input power: 90–264 V AC, single phase

• Max power draw: ~300 VA

• Weight: ~8.9 kg

• Dimensions: ~419 × 325 × 195 mm

• Rugged, portable case suitable for field and lab use

Included Accessories

• Output cable set

• Neutral link (for star connection)

• Mains lead

• USB flash memory/key

• USB keyboard

• Spare fuses

• Operating manual

• Carry case