Hioki PW8001 Power Analyzer

The PW8001 sets a new benchmark for complete power analysis solutions with Hioki being the only manufacturer that offers industry-leading power analyzers and a wide portfolio of high-accuracy current sensors both developed and manufactured by Hioki. This enables to align their performance and results in more accurate and stable measurements from DC to high frequencies and low power factor measurements thanks to functions like the automatic phase shift correction.

Upcoming industry challenges are anticipated with the ability to measure even large currents at voltages up to 1500 V, 15 MS/s sampling rate and multi-channel measurement target applications using SiC/GaN semiconductors from automobile electrification, smart grids and reactors to renewable energy supply sources.

Key Features

• World-class measurement accuracy: Basic accuracy ±0.03%, DC accuracy ±0.05%, 50 kHz accuracy 0.2% (*1)
• Accurate capture of power fluctuations caused by high-speed switching: Sampling performance 18-bit, 15 MHz, Noise Resistance (CMRR) 110 dB, 100 kHz (*1)
• Up to 8 power channels optimizing your measurement: 8-channel power measurement
• Accurately measure high-frequency, low-power-factor power: Current sensor automatic phase correction function (*2)
• Simultaneous analysis of 4 motors: 4-motor/2-motor simultaneous analysis function
• Integration of measurement data into CAN networks: CAN or CAN FD output function
• Intuitive and Quantitative Insights with Power Spectrum Analysis (PSA) function
• Safe evaluation of increasingly high-voltage solar inverters: 1500 V DC CAT II / 1000 V DC CAT III (*3)
• Earning Japan Calibration Service System (JCSS) Certification for DC Power Measurement. (*4)

*1:When using the 15MS/S Input Unit U7005

*2:When used with a current sensor with automatic phase correction functionality

*3:When using the 2.5MS/S Input Unit U7001

*4:JCSS is standard that is satisfy the requirements of the ISO/IEC 17025 international standard.

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Basic specifications

Accuracy guaranteed for 6 months, multiply the 6-month accuracy reading error by 1.5 to obtain the 1-year accuracy.

Unleashing innovation: Discover version 2.0 with groundbreaking features!

Discover the enhanced Version 2.0 firmware, now with Power Spectrum Analysis (PSA) to accurately analyze high-frequency power loss. Additionally, this latest firmware update brings thoughtful innovations such as improved optical links, IEC harmonics, and flicker management. Explore the refined features of Version 2.0 that blend performance with precision.

Dive into the details here!

Providing the ultimate power analyzer for use by all engineers pursuing power conversion efficiency

World-class measurement accuracy

- Basic accuracy ±0.03%, DC accuracy ±0.05%, 50 kHz accuracy 0.2% (*1)
Evaluating power conversion efficiency requires the ability to accurately measure power in every band, from DC to high frequencies. The PW8001 delivers exceptional measurement accuracy not only for 50/60 Hz, but also across a broad frequency band, including for DC and at 50 kHz. This allows it to accurately evaluate power conversion efficiency which often involves measuring multiple frequencies.

Accurate capture of power fluctuations caused by high-speed switching

- Sampling performance 18-bit, 15 MHz (*1)

- Noise Resistance (CMRR) 110 dB, 100 kHz* (*1)

Evaluating power conversion efficiency requires the ability to accurately measure power in every band, from DC to high frequencies. The PW8001 delivers exceptional measurement accuracy not only for 50/60 Hz, but also across a broad frequency band, including for DC and at 50 kHz. This allows it to accurately evaluate power conversion efficiency which often involves measuring multiple frequencies.

Unlocking efficiency in inverter systems: Introducing Power Spectrum Analysis (PSA)

The Power Spectrum Analysis (PSA) function, enhanced by a powerful FFT (Fast Fourier Transform) feature, revolutionizes our approach to analyzing high-frequency power loss. This advanced FFT capability allows for in-depth analysis of voltage, current, and active power, providing detailed insights into power conversion dynamics. This is crucial for enhancing inverter efficiency and minimizing waste in power systems through targeted frequency analysis. The PSA function can provide a clearer picture of electrical issues and helping to pinpoint and reduce power losses more effectively.

Up to 8 power channels optimizing your measurement

- 8-channel power measurement
Increasingly, hardware like electric vehicle (EV) drive systems that use dual inverters and electric power interchange systems in smart homes are adopting multi-circuit designs in order to utilize energy effectively. A single PW8001 can measure 8 channels of power data, allowing equipment with 8 measurement points for power such as dual motors as well as other equipment with multiple circuits to be evaluated in one stroke.

Seamlessly integrate power analysis: Dual units, single Control for up to 16 channels

By connecting two PW8001 units with an optical cable, measured data can be consolidated in a single PW8001 in real time. The power of a maximum of 16 channels and 8 motors can be simultaneously analyzed and their efficiency and loss can be displayed and recorded with a single unit.

PMSM online parameter measurement (*2)

- Electrical angle measurement function

In order to implement fine control of a permanent magnet synchronous motor (PMSM), it’s necessary to assess the motor’s characteristics under actual operating conditions. The PW8001’s electrical angle measurement function can perform voltage and current advance measurement, which is necessary in order to implement vector control of the dq coordinate system. The instrument can calculate Ld and Lq values from electrical angle measurements and ascertain motor parameters under actual operating conditions.

Compensation of torque meter measurement error (*2)

- Dual torque value correction functions

Torque meter measurement error has a substantial impact on motor analysis. The PW8001 can perform calculations using a correction table based on user-defined values for nonlinear compensation and friction compensation. The instrument can accurately analyze high-efficiency motors as well.

Safe evaluation of increasingly high-voltage power conditioners

- 1500 V DC CAT II, 1000 V DC CAT III (*3)

Renewable energy generation systems are being engineered to use increasingly high voltages in order to reduce equipment construction costs and transmission loss. Evaluating generation systems requires instruments that are capable of high-voltage measurement. The PW8001 Input Unit U7001 can safely measure directly input high voltages of up to 1500 V DC (CAT II) and 1000 V DC (CAT III). (The Voltage Cord L1025, which can accommodate 1500 V DC [CAT II] and 1000 V DC [CAT III], is also available.)

Analysis of power loss in reactors

- High-accuracy measurement of high-frequency, low-power-factor power
In order to improve power conversion efficiency, it’s necessary to assess power loss in reactors. The lower the reactor’s loss, the lower the power factor, making accurate measurement difficult. The U7005’s outstanding high-frequency characteristics and noise resistance make it an extremely effective tool for analyzing power loss in high-frequency, low-power-factor reactors.

*1:When using the 15MS/S Input Unit U7005

*2:Models equipped with motor analysis function only

*3:When using the 2.5MS/S Input Unit U7001

Datasheet:

Hioki PW8001 Datasheet

Model No. (Order Code)

Note: Input units must be specified at the time of ordering. Optional input units, voltage cords, and current sensors are required for measurement.