The Megger SMRT46D is a lightweight, portable multi-phase relay test system with high power and current output capabilities. It can be used for testing a wide range of protective devices, including electromechanical, solid-state, and microprocessor-based protective relays, motor overload relays, and more.
The Megger SMRT46D is a multi-phase relay test system. The following is an overview:
Features
Flexible Operation
Equipped with an integrated intelligent touchscreen interface (STVI), it allows standalone operation via an intuitive, high-resolution graphical touchscreen, eliminating the need for an external PC. Computer control is also possible via AVTS (Visual Test Software) or RTMS (Relay Test Management Software) running on a PC.
Versatile Channel Configuration
Features four voltage channels and three current channels, with some voltage channels convertible to current channels, providing one voltage channel and six current channels.
High Current Output Capability
Each phase can deliver up to 60 amps at 300 VA; the converted voltage channels deliver 15 amps at 120 VA. Each current channel is rated for 30 amps at 200 VA rms continuously and 60 amps at 300 VA rms for short bursts.
Comprehensive Testing Capabilities
It offers dynamic, transient, and GPS-synchronized end-to-end testing capabilities, supports IEC 61850 testing, and can test a wide range of electromechanical, solid-state, and microprocessor-based protection relays, motor overload relays, and other similar protective devices.
Technical Parameters
Voltage Channels
Each voltage channel provides a variable output of 0-30/150/300 V at 150 VA, with automatic ranging during operation and under load.
Current Channels
The maximum compliance voltage per phase is 50 V RMS, and two series channels provide 100 V for testing high-impedance relays. Three parallel current sources can provide up to 12 amps of test current at 600 VA for testing ground overcurrent relays with high tap ratings. With three parallel current sources, it can deliver up to 180 amps at 900 VA for testing all instantaneous overcurrent relays.
Application Scenarios
The test system can be customized by adding the number of voltage-current "VIGEN" modules required for a specific test application, up to a maximum of three channels. For example, an SMRT46D with three VIGEN modules provides complete three-phase testing of three-phase impedance, directional power, negative sequence overcurrent, and other devices requiring a three-phase, four-wire, star-connected source. The fourth voltage channel provides AC reference/synchronizing/polarizing voltages, or a DC battery simulator voltage source.
Parameter Category
Item
Specification
Basic Information
Model Name
Megger SMRT46D Multi-Phase Relay Tester
Operation Interface
1. Integrated Smart Touch View Interface (STVI) with high-resolution graphic touchscreen 2. PC control via AVTS (Visual Test Software) or RTMS (Relay Test Management Software)
Channel Configuration
Voltage Channels
4 channels (some can be converted to current channels)
Current Channels
3 channels (convertible from voltage channels for up to 6 current channels total)
Output Performance
Voltage Output (per channel)
0-30/150/300 V (variable), 150 VA output power; automatic range change under load
Up to 3 "VIGEN" (Voltage-Current) modules for custom configuration; 3 modules enable 3-phase testing (3-phase 4-wire star connection)
4th Voltage Channel Function
Additional Output
AC reference/synchronization/polarization voltage, or DC battery simulator voltage source
Models Overview
High Current, High Power Multi-Phase Relay Test Systems
SMRT46 / SMRT46D
Multipurpose, lightweight, field portable test sets designed for testing a wide variety of relays and similar protective devices.
Dimension:
36 * 19.3 * 30.5 cm
Weight:
≈10 kg
Battery parameters:
Without battery
Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.
1. What is the primary purpose of the Megger SMRT46D?
The Megger SMRT46D is a multi-phase relay test system designed for testing a wide variety of protective devices, including electromechanical, solid-state, and microprocessor-based protection relays, as well as motor overload relays.
2. Does the SMRT46D require an external PC to operate?
No, it does not. The system features an integrated Smart Touch View Interface (STVI) with a high-resolution graphical touchscreen for standalone operation. However, PC control is also fully supported using AVTS or RTMS software.
3. What is the maximum current output capability of the SMRT46D?
Each current channel can continuously deliver up to 30 Amps at 200 VA, and up to 60 Amps at 300 VA for short durations. When configured in parallel, the three channels can output up to 180 Amps at 900 VA for instantaneous overcurrent testing.
4. Can I customize the channel configurations on this unit?
Yes, you can customize the system by adding up to three "VIGEN" (Voltage-Current) modules depending on your specific testing demands. Some voltage channels can also be converted to current channels, providing up to six current channels in total.
5. What are the dimensions and weight of the device?
The physical dimensions of the SMRT46D are 36 x 19.3 x 30.5 cm, and it weighs approximately 10 kg, making it a portable, field-ready test system. It does not include an internal battery.
6. Does this system support modern smart substation testing?
Yes, the Megger SMRT46D fully supports IEC 61850 testing standards, alongside advanced capabilities like dynamic, transient, and GPS satellite-synchronized end-to-end testing.
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