- Designed for multi-phase relay engineers.
- Delivers up to 60 A and 319 VA per phase.
- Integrated touch-screen control with RTMS.
- Three VIGEN modules support six currents.
Megger SMRT46R Multi-Phase Relay Tester
The Megger SMRT46R Multi-Phase Relay Tester is a portable test system for electromechanical, solid-state and microprocessor-based protective relays. It also supports motor overload relays and similar protective devices. Its rugged metal enclosure combines field portability with high current and voltage output power.
Three voltage and current VIGEN modules provide up to three high-current sources and three convertible voltage channels. Users can configure these channels to produce four voltages and three currents or one voltage and six currents. This flexible arrangement supports single-phase and complete three-phase relay testing.
The Megger SMRT46R Multi-Phase Relay Tester can run RTMS through its optional integrated 25.7 cm colour touch screen or from a connected computer. Manual, steady-state and dynamic tests can be selected through clear menus and preset relay test routines. Results can be stored internally and transferred to a USB drive for reporting or printing.
Key Benefits
- Combines multi-phase current and voltage sources in one portable test system
- Allows operation from the integrated display or a connected computer
- Uses clear RTMS graphics and touch-screen controls to simplify test selection
- Changes output ranges automatically under load without stopping the test
- Maintains maximum compliance voltage to support high-burden relay testing
- Provides high current output for instantaneous overcurrent relay testing
- Stores test results internally for later transfer to a USB drive
- Uses audio and visual alarms to indicate output errors, open circuits and overloads
- Supports manual, steady-state, dynamic, transient and synchronised testing
- Allows modules and enabled software functions to be selected for specific test needs
Common Applications
Megger SMRT46R Multi-Phase Relay Tester is suitable for a range of relay testing, commissioning and fault-finding tasks, including:
- Testing electromechanical protective relays
- Testing solid-state and microprocessor-based relays
- Testing motor overload relays
- Three-phase impedance relay testing
- Directional power and negative-sequence overcurrent testing
- Three-phase current differential relay testing
- Testing harmonic-restraint transformer differential relays
- Instantaneous and ground overcurrent relay testing
- Circuit-breaker and reclosing relay simulation
- Transient and satellite-synchronised end-to-end testing
Why Choose This Model?
The SMRT46R provides an optional integrated 25.7 cm display, improved distributed power supplies and additional memory. Unlike the SMRT46, it can provide onboard manual control without requiring an external STVI controller.
Product Comparison
| Feature | SMRT46R | SMRT46D | SMRT46 |
| Display and control | Optional integrated 25.7 cm touch screen; non-display model available | Integrated onboard display | External Smart Touch View Interface |
| VIGEN modules | Three | Up to three | Up to three |
| Current per channel | 32 A at 200 VA continuous; 60 A at 319 VA for 1.5 seconds or 90 cycles | 32 A at 200 VA continuous; 60 A at 319 VA for 1.5 seconds or 90 cycles | 32 A at 200 VA continuous; 60 A at 319 VA for 1.5 seconds or 90 cycles |
| Maximum parallel current | 180 A at 957 VA | 180 A at 957 VA | 180 A at 957 VA |
| Voltage sources | Three 0 to 300 V AC/DC sources plus fourth auxiliary source | Three 0 to 300 V AC/DC sources plus fourth auxiliary source | Three 0 to 300 V AC/DC sources plus fourth auxiliary source |
| Ethernet arrangement | PC IN, OUT and isolated Ethernet ports | PC IN, OUT and isolated Ethernet ports | PC/IEC 61850, OUT and STVI PoE ports |
| Enclosure | Rugged metal enclosure | Rugged metal enclosure | Fibreglass-reinforced plastic enclosure |
| Dimensions | 337 × 172 × 273 mm | 337 × 172 × 273 mm | 360 × 197 × 302 mm with lid |
| Weight | 13.65 kg | 13.65 kg | 13.00 kg with lid; 12.02 kg without lid |
General Specifications
| Specification | Details |
| Product type | Multi-phase relay test system |
| Voltage and current modules | Three VIGEN modules |
| Source configuration | Four voltage channels and three current channels; convertible voltage channels allow one voltage and six currents |
| Display option | Integrated 25.7 cm full-colour, high-resolution TFT LCD touch screen; non-display configuration also available |
| Controls | Touch screen and control knob or computer control |
| Included software | Relay Test Management Software, including RTMS Template Manager |
| Software installation | No security dongle or operating licence required; may be installed on multiple customer-owned computers |
| Automation | Manual and automatic test control through RTMS |
| Test-result storage | Internal memory with transfer to a USB drive |
| Input power | 90 to 264 V AC, single phase, 50/60 Hz, 1800 VA |
| Output regulation | Outputs are regulated and independent of sudden line-voltage, frequency and load-impedance changes |
| Binary inputs | Nine independent, galvanically isolated inputs rated up to 300 V AC/DC |
| Waveform storage | Up to 256,000 samples per output channel |
| Output protection | Voltage outputs protected against short circuits and prolonged overloads; current outputs protected against open circuits and overloads |
| IEC 61850 capability | IEC 61850 GOOSE and IEC 61850 9-2 LE Sampled Values functions available through enabled hardware options |
| Safety standard | EN 61010-1 |
| EMC emissions | EN 61326-2-1, EN 61000-3-2/3 and FCC Part 15 Subpart B Class A |
| EMC immunity | EN 61000-4-2/3/4/5/6/8/11 |
| Ingress protection | IP30 |
Measurement and Accuracy Specifications
| Specification | Details |
| Per-channel current output | 50 mA at 5 VA and 10 V RMS 1 A at 5 VA and 15 V RMS 4 A at 200 VA and 50 V RMS 15 A at 200 VA and 13.34 V RMS 32 A at 200 VA and 6.25 V RMS 60 A at 319 VA and 5.32 V RMS |
| Three current channels in parallel | 12 A at 600 VA and 50 V RMS 45 A at 600 VA and 13.4 V RMS 96 A at 600 VA and 6.25 V RMS 180 A at 957 VA and 5.32 V RMS |
| Two current channels in series | 4 A at 100 V RMS and up to 32 A at 12.5 V RMS |
| Main voltage output | 2 V at 0.02 VA and 10 mA 30 V at 150 VA and 5 A 150 V at 150 VA 300 V at 150 VA and 0.5 A DC output: 150 W Duty cycle: continuous |
| Series voltage output | Two voltage channels can be connected in series to provide up to 600 V AC |
| Voltage amplifier in current mode | 5 A at 150 VA and 30 V RMS, continuous 15 A at 120 VA and 8 V RMS for 1.5 seconds or 90 cycles |
| Low-level Rogowski output | 0 to 2 V RMS at 10 mA 0 to 10 V RMS at 100 mA 0 to 40 V RMS at 25 mA Continuous duty |
| Phase-angle range | 0.00° to 359.99° clockwise or counter-clockwise, or 0.00° to ±180.00° |
| Phase-angle accuracy and resolution | ±0.02° typical; less than 0.1° guaranteed at 50/60 Hz; resolution 0.001° |
| Output frequency | DC and 0.001 to 3000.000 Hz; transient playback from DC to 10 kHz |
| Frequency accuracy and resolution | Resolution 0.001 Hz; accuracy 2.5 ppm typical and 25 ppm maximum from 0°C to 50°C at 50/60 Hz |
| Total harmonic distortion | Less than 0.1% typical and 2% maximum at 50/60 Hz |
| AC voltage metering | Ranges: 30, 150 and 300 V Accuracy: ±0.05% of reading + 0.02% of range typical; ±0.15% of reading + 0.05% of range maximum Resolution: 0.01 Measurement: AC RMS |
| DC voltage metering | Ranges: 30, 150 and 300 V Accuracy: 0.1% of range typical; 0.25% of range maximum Resolution: 0.01 |
| AC current metering | Ranges: 32 and 60 A Accuracy: ±0.05% of reading + 0.02% of range typical; ±0.15% of reading + 0.05% of range maximum Resolution: 0.001/0.01 Measurement: AC RMS |
| DC current metering | Range: 30 A Accuracy: ±0.05% of reading + 0.02% of range typical; ±0.15% of reading + 0.05% of range maximum Resolution: 0.001/0.01 |
| Timer range | 0.0001 to 99999.9 seconds or 0.01 to 99999.9 cycles, with auto-ranging |
| Timer accuracy | ±0.001% of reading typical, ±2 least significant digits; ±0.005% of reading maximum from 0°C to 50°C |
| Variable binary-input threshold | 5 to 150 V AC/DC 5 to 30 V: ±3 V 31 to 99.9 V: ±6 V 100 to 150 V: ±10 V |
| DC input voltage | Range: 0 to ±10 V DC Accuracy: ±0.001% of reading + 0.005% of range typical; ±0.003% of reading + 0.02% of range maximum Resolution: 0.001 Measurement: average |
| DC input current | Ranges: 0 to ±1 mA DC and 4 to ±20 mA DC Accuracy: ±0.001% of reading + 0.005% of range typical; ±0.003% of reading + 0.02% of range maximum Resolution: 0.001 Measurement: average |
| Auxiliary AC voltage | 30 V at 100 VA and 3.33 A 150 V at 100 VA and 0.67 A Accuracy: ±0.05% of reading + 0.02% of range typical; ±0.15% of reading + 0.05% of range Resolution: 0.001 Measurement: RMS |
| Battery simulator | Preset levels: 24, 48, 125 and 250 V Variable output: 5 to 250 V DC at 100 W, 4 A maximum 30 V range: 100 W, 3.33 A 250 V range: 100 W, 0.4 A Accuracy: less than 1% typical; less than 5% ±1 V guaranteed |
Mechanical and General Information
| Specification | Details |
| Operating temperature | -10°C to +50°C |
| Storage temperature | -25°C to +70°C |
| Relative humidity | 5% to 95% RH, non-condensing |
| Dimensions | 337 W × 172 H × 273 D mm |
| Weight | 13.65 kg |
| Enclosure | Rugged metal enclosure for field portability |
| Shock standard | EN/IEC 60068-2-27 |
| Vibration standard | EN/IEC 60068-2-6 |
| Transit-drop standard | ISTA 1A |
| Free-fall standard | EN/IEC 60068-2-32 |
| Drop and topple standard | EN/IEC 60068-2-31 |
| Optional transit protection | Hard-sided transit case or padded soft-sided case |
Specification Notes
- Metering accuracies apply from 10% to 100% of range at 25°C ±5°C and 50 to 60 Hz.
- The 32 A per-channel current output is continuous. The 60 A output has a duty cycle of 1.5 seconds or 90 cycles.
- Low-current, Rogowski and variable binary-input threshold functions require the low-level hardware option.
What’s Included
- Megger SMRT46R Multi-Phase Relay Tester
- Relay Test Management Software
- Power cord selected for the ordered configuration
- Ethernet communication cable, 210 cm
- Instruction manual on USB
Optional Extras
- Integrated onboard display option
- Low-level output hardware option
- Test-lead package with carry case, leads, jumpers and adapters
- RTMS Enhanced software upgrade
- IEC 61850 GOOSE hardware licence
- IEC 61850 9-2 LE Sampled Values hardware licence
- Megger Low Level Adapter
- Megger GPS timing reference
- Relay Lead Connector
- Arc Flash Simulator
- Hard-sided transit case
- Soft-sided carry case
Meta Description
Megger SMRT46R Multi-Phase Relay Tester with integrated RTMS control, 60 A per phase and IEC 61850 test capability.