Megger SMRT43D Multi-phase relay test system
- Four voltage, three current channels
- High current: 45A at 300VA
- Integrated touchscreen Smart View Interface
- IEC 61850 digital relay testing
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Description
Compact, Rugged Solution for Modern Relay Testing
The Megger SMRT43D Multi-Phase Relay Test System is an industry benchmark for portable, high-performance relay testing. Lightweight and engineered for field utility, the SMRT43D is both rugged and highly versatile, optimized for demanding environments where reliability and performance are non-negotiable. Its robust metal enclosure ensures durability during transit and use, while advanced design makes it suitable for both field technicians and engineers working in substations, power plants, and industrial settings. The system’s modularity, expandability, and field-customizable options make it a truly future-ready investment for power utilities and relay workshops.
Advanced Interface for Standalone and PC Operation
One of the SMRT43D’s most noteworthy features is its built-in Smart Touch View Interface™ (STVI). This high-resolution, full-color TFT LCD touchscreen allows for intuitive navigation and quick manual, steady-state, and dynamic testing. The STVI runs Megger’s advanced RTMS software, providing a comprehensive suite of relay test capabilities without needing an external PC—ideal for on-site settings. However, when full automation or data management is needed, the SMRT43D can be controlled directly from a computer using AVTS or RTMS software, making it equally suitable for laboratory or system integration. Data can be saved internally or exported via USB, simplifying report generation and compliance documentation.
Customizable Application for Diverse Relay Protection Tasks
Designed to perform in a wide spectrum of applications, the SMRT43D is capable of testing electromechanical, solid-state, and microprocessor-based protective relays, motor overload relays, and similar protective devices. Field engineers can configure up to three voltage-current (VIGEN) modules to tailor the output for comprehensive three-phase impedance, directional power, and negative sequence overcurrent relay tests. The fourth voltage channel can serve as a synchronizing reference or battery simulator, extending the system’s versatility for modern relay schemes. Interconnection with additional SMRT units through Ethernet enables complex protection scheme verifications—including multi-phase and end-to-end differential bus protection.
Key Applications Across Power and Utility Sectors
The SMRT43D excels in protection relay panel testing, substation commissioning and maintenance, and factory acceptance testing for new installations. Its ability to provide high current output up to 45 Amps (300 VA per phase for short bursts) alongside versatile voltage combinations (ranging 0–300V at 150 VA per channel) means that it can test even the high burden relays often found in legacy installations. Applications extend to steady-state, dynamic, and transient testing; replay of digitally recorded faults for acceptance or troubleshooting; end-to-end GPS-synchronized relay verification; and IEC 61850 digital substation conformance testing. Its unique flat power output curve and seamless range-switching under load further make it invaluable for a wide variety of challenging field situations.
Enhanced Performance Through Innovation and Modularity
Every SMRT43D system can be tailored through its module architecture and software options, ensuring users only pay for what they need while providing clear upgrade paths as requirements grow. Floating or grounded common returns, Bluetooth wireless control, localization in multiple languages (English, Spanish, French, German), and options for test accessories make it a compelling choice for global deployment. The amplifier design—offering high VA at low voltages and a flat current power curve from 4–30A—ensures exceptional performance when testing high impedance relays or handling parallel test currents for instantaneous overcurrent checks. Enhanced timer and binary input/output capacities make logic simulation and sequence testing straightforward, further expanding the scope of testable scenarios.
Simple, Accurate, and Safe Testing Experience
Meticulously designed for user safety and measurement accuracy, the SMRT43D features built-in protections against overload, short circuit, thermal errors, and accidental wiring mishaps. Audible and visual error indications, robust isolation of outputs, and a host of environmental ruggedness certifications (EN 61010-1, IEC standards for shock, vibration, transit drop, free fall, and EMC compliance) make it a trustworthy companion in rough, on-site conditions. The system’s high measurement accuracy—for both voltage (±0.05% typical) and current (±0.05% typical)—ensures it exceeds requirements for both routine verifications and advanced diagnostic tasks.
tpt24: The Global Benchmark for Authentic Megger Supply
For customers seeking the SMRT43D, tpt24 stands as the premier online store worldwide. tpt24 guarantees genuine, original, and high-quality delivery of the Megger SMRT43D to your location—no matter where in the world you operate. With its industry-leading sourcing, expert support, and strong reputation for reliability, tpt24 assures not just the best price, but also a complete guarantee of product authenticity and global warranty. Whether equipping a national utility or a local service center, purchasing from tpt24 means peace of mind and world-class service every step of the way.
Why the SMRT43D Is the Professionals’ Choice
In summary, the SMRT43D combines field-tested robustness, cutting-edge digital capability, and a rich set of features for both manual and fully-automated relay test workflows. It supports legacy analog, advanced digital (IEC 61850), and hybrid modern protection systems. Its scalability, intuitive control options, and unmatched reliability make it indispensable for protective relay engineers, substation maintenance teams, commissioning specialists, and reliability consultants. Procurement through tpt24 ensures that you not only receive this technological edge but also the highest standard of delivery excellence and support—all with a guarantee that safeguards your investment.
Specifications
| Feature | Specification |
|---|---|
| Model | SMRT43D |
| Test Channels | 4 voltage, 3 current |
| Current Output (Per Channel) | Up to 45A @ 300 VA (1.5 s); 30A @ 200 VA continuous |
| Voltage Output (Per Channel) | 0–300V AC/DC; 150 VA max per channel |
| Voltage Ranges | 30, 150, 300 Volts |
| Current Ranges | 1, 4, 15, 30, 45 Amperes |
| Output Configuration | Modular VIGEN modules (up to 3) |
| Peak Current (All Channels) | Up to 135A @ 900 VA (three channels in parallel) |
| Compliance Voltage | Up to 50V per phase (current) |
| Aux Channel | AC/DC, 0–250V, 100 VA |
| Frequency Range | 0.001 to 1000 Hz (output modules); DC–10kHz (transient) |
| Accuracy (Voltage/Current) | ±0.05% reading typical |
| Harmonic Distortion | <0.1% typical (2% max) at 50/60 Hz |
| Built-in Interface | Smart Touch View Interface (STVI) with high-res color TFT LCD |
| Connectivity | Three Ethernet ports; USB for data/report export |
| Software Control | Standalone, or PC with RTMS/AVTS; IEC 61850 GOOSE option |
| Binary I/O | 10 programmable inputs, 6 programmable outputs |
| Environmental Range | Operating 0–50°C; Storage −25 to +70°C; 5–90% non-condensing humidity |
| Dimensions (HxWxD) | 337 x 172 x 273 mm (13.25 x 6.75 x 10.75 in) |
| Weight | 13.2 kg (29.35 lbs, three-phase configuration) |
| Power Supply | 90–264V AC, 50/60Hz, 1800 VA |
| Certifications | EN 61010-1 (safety), IEC 60068 (environmental), EN 61326 (EMC), ISO 9001 |
| End-to-End Testing | GPS satellite synchronization, IEEE C37.111 COMTRADE, transient playback supported |
| Languages | English, Spanish, French, German (interface) |
| Protection | Overload/short-circuit detection, thermal shutdown, galvanic isolation of amplifiers |








