The Yokogawa WT1802E Precision Power Analyzer delivers high-accuracy simultaneous electrical measurements across six voltage and six current channels, making it essential for power quality analysis, motor characterization, and harmonic distortion assessment. Operating at 2 MS/s with 16-bit resolution and 0.05% basic power accuracy, the instrument captures waveform data while analyzing harmonics up to the 500th order and motor performance parameters including torque, slip, and efficiency.
Technical Specifications
• Sampling Rate: 2 MS/s, 16-bit resolution
• Power Measurement Accuracy: 0.05% of reading + 0.05% of range (1% to 110% of selected range)
• Voltage Input Range: 1.5 V to 1000 V (direct terminals)
• Current Input Range: 10 mA to 5 A or 1 A to 50 A (direct terminals, configurable)
• Harmonic Analysis: 50/60 Hz fundamental with analysis up to 500th order
• Harmonic Parameters: THD, HDF, THF, impedance
• Data Capture Interval: 5 ms (external synchronization OFF) or 1 ms to 100 ms (external synchronization ON)
• Harmonic Measurement Floor: 0.1 Hz for low-speed motor rotation analysis
– Key Features
• Dual harmonic measurement enables simultaneous analysis of two sources (e.g., inverter input and output)
• Motor testing includes rotational speed, direction, torque, slip, electrical angle, mechanical power, and efficiency calculation
• Configurable input element combinations: two 50 A elements, two 5 A elements, or mixed 5 A/50 A configuration
• Null function for offset mitigation on voltage, current, and motor input signals
• Independent range configuration with selective auto-ranging for production test environments
• External current sensor input option available (/EX3)
– Typical Applications
Power quality characterization, motor efficiency validation, inverter performance analysis, harmonic compliance testing, and electrical device development.
– Compatibility & Integration
Direct voltage and current measurement eliminates external sensor requirements. External current sensor input accommodates specialized measurement scenarios.
