OVERVIEW: The SB-MIX3 from SB-TEK is a computerized, SCADA-based Measurement Instrument Trainer designed for advanced electrical engineering laboratories. It combines traditional circuit experiments with modern data acquisition, real-time monitoring, and SCADA-based control. The trainer allows students to perform AC/DC circuit experiments, transformer tests, motor-generator analysis, and verification of fundamental electrical theorems, while logging all experimental data in real time. Developed in compliance with latest European Union safety and EMC directives (CE, EMC, LVD, RoHS), the SB-MIX3 is modular, safe, and highly interactive.
KEY FEATURES
• SCADA-supervised operation with real-time voltage, current, power, frequency, and power factor acquisition.
• Graphical user interface for circuit diagrams, measurement trends, event logging, and alarms.
• Built-in short-circuit, overload, and overcurrent protection.
• Integrated dynamometer interface for DC motor and generator testing.
• Real-time visualization of AC/DC load behavior, series/parallel/mixed circuits, and transformer performance.
• Modular setup with color-coded safety banana sockets, cooling fans, and external AC connection facility.
• Data logging and export capability to CSV, Excel, or SQL database for further analysis.
LEARNING OUTCOMES
Students will be able to:
• Verify Ohm’s Law, Kirchhoff’s Current Law, and Kirchhoff’s Voltage Law.
• Test series, parallel, and mixed circuits under AC and DC conditions.
• Measure active, reactive, apparent power, and energy consumption.
• Verify network theorems: Thevenin, Norton, Superposition, Maxwell, Maximum Power Transfer.
• Conduct transformer tests: Open Circuit, Short Circuit, Parallel Operation, and Regulation Tests.
• Analyze DC motor and generator performance and efficiency.
• Operate and log data for resistive, inductive, capacitive, and dynamic loads.
• Use SCADA software for fault simulation, data acquisition, real-time monitoring, and analysis.
SYSTEM SPECIFICATIONS:
Power Supply Units:
• AC Supply: 0–250 V AC, 50 Hz, variable, SCADA-monitored.
• DC Supply: 0, 6, 12, 18, 24, 30, 36 V ±10%, 3 A, digitally controlled and SCADA-integrated.
• Built-in overload and short-circuit protection for all outputs.
Measurement Instruments:
• Digital Wattmeter’s: 2 units, SCADA-monitored.
• Digital AC Ammeters: 2 units, SCADA-integrated.
• Digital DC Ammeter: 1 unit, SCADA-monitored.
• Analog AC Voltmeters: 3 units, interfaced with SCADA for logging.
• Digital DC Voltmeter: 1 unit, SCADA-acquisition enabled.
Load Units:
• Resistive Loads: 3 units (550 ?, 1100 ?, 1600 ? ±10%, 200 W each).
• Inductive Loads: 3 units (1 H, 2 H, 3 H ±10%).
• Capacitive Loads: 3 units (1.5 µF, 3 µF, 4.5 µF ±10%).
• Fan Cooling System: 6 units, monitored via SCADA for operational status.
Motors & Generators:
• Permanent Magnet DC Motor/Generator: SCADA-monitored voltage, current, speed, torque, and power.
• DC Generator Prime Mover: Integrated with SCADA for real-time performance analysis.
• Dynamometer: Measures torque, mechanical power, and efficiency; SCADA interface displays data in real-time charts.
Connectors & Safety:
• 4 mm safety banana sockets for AC/DC connections.
• Built-in short-circuit and overload protection.
• External AC connection facility for interfacing additional lab devices.
SCADA Integration (Advanced Software Suite)
The trainer includes a dedicated SCADA PC workstation with the following configuration:
SCADA PC Workstation
Processor: Intel Core i7-11700 / i7-11700K, 8 cores / 16 threads, up to 5.0 GHz turbo.
Motherboard: Intel 500-series or compatible 400-series with PCIe 4.0, dual LAN, M.2 NVMe.
RAM: 32 GB DDR4-3200 (expandable to 64 GB).
Storage: 1 TB NVMe PCIe SSD (for SCADA software, data logs, and replay files).
Monitor: 27? IPS, Full HD (1920 × 1080) or higher; supports dual-monitor setup for mimic diagrams and event logging.
Keyboard & Mouse: Standard, USB-connected.
Offline SCADA Operation: Advanced graphical interface for measurement acquisition, trend plotting, fault simulation, and experiment logging.
SCADA Software Features:
• Real-time monitoring of voltage, current, power, frequency, power factor for all circuits.
• Logging and visualization of series, parallel, and mixed circuit experiments.
• Fault simulation with automatic alarm and event logging.
• Transformer test monitoring: open-circuit, short-circuit, regulation, and parallel operation.
• DC motor and generator testing interface with torque-speed-power plots via dynamometer.
• Export of experimental results to CSV, Excel, or SQL databases.
• User management with roles for students, instructors, and administrators.
Experiments / Exercises
• Verification of Ohm’s Law (AC/DC).
• Series, Parallel, and Mixed Circuit Verification.
• Power Measurement and Efficiency Analysis (AC/DC).
• Verification of Kirchhoff’s Current and Voltage Laws.
• Verification of Thevenin, Norton, Superposition, Maxwell, and Maximum Power Transfer Theorems.
• Transformer Open Circuit Test.
• Transformer Short Circuit Test.
• Transformer Parallel Operation Test.
• Transformer Voltage Regulation Test.
• Performance Analysis of DC Motor & Generator (with dynamometer).
• Performance Analysis of Permanent Magnet DC Motor/Generator.
• Load Testing with resistive, inductive, and capacitive loads.
• Synchronous operation analysis of DC and PM generators.
• SCADA-based fault simulation and event logging.
• Energy consumption and power factor analysis for various loads.
