Yokogawa WT3001E Precision Power Analyzer

The Yokogawa WT3001E is a single-channel precision power analyzer designed for high-accuracy measurement and analysis of power systems in demanding B2B environments. It delivers ±0.04% basic power accuracy across DC and 0.1 Hz to 1 MHz bandwidths, making it suitable for characterizing power supplies, inverters, motor drives, solar inverters, lighting systems, uninterruptible power supplies, transformers, and aircraft power systems.

Technical Specifications

• Measurement Accuracy: ±0.04% of reading (basic power)


• Frequency Range: DC and 0.1 Hz to 1 MHz


• Voltage Input: Maximum 600 V direct


• Current Input: Maximum 20 A direct (single-element model)


• Common Mode Voltage: 1000 Vrms continuous (50/60 Hz)


• Harmonic Measurements: IEC61000-3-2 and IEC61000-3-12 compliant


• Flicker Measurements: IEC61000-3-3 and IEC61000-3-11 compliant


• Data Storage Interval: Minimum 50 ms


• Data Update Rate: 50 ms to 20 sec


• Display: 8.4-inch high-resolution LCD with range indicator LEDs


• Power Supply: 100 to 240 VAC

Key Features

• Waveform computation and FFT analysis for detailed signal characterization


• Waveform sampling data capture and storage


• Integration functions: active power (WP), reactive power (WQ), apparent power (WS), and current (q) with effective input range from 1% to 130% of measurement range


• Auto-ranging capability in integration mode


• Average active power calculation over user-defined intervals


• 8.4-inch LCD display with enhanced readability

Typical Applications

• Power supply testing and evaluation


• Inverter and motor drive characterization


• Solar inverter performance analysis


• Lighting system power assessment


• Uninterruptible power supply (UPS) validation


• Transformer testing and diagnostics


• Aircraft power system measurement

Compatibility & Integration Standard interfaces include GP-IB, Ethernet, RS-232, and USB. Optional interfaces available: serial port (C2), USB (C12), Ethernet 100BASE-TX/10BASE-T (C7), VGA output (V1), D/A output (DA), BNC connector for two-system synchronized measurement, and external current sensor input terminals.