Yokogawa WT5000 FOR RENT
Precision Power Analyzer 7-Slot Chassis

Order #: WT5000-RENT2

Mfg #: WT5000-RENT2

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Yokogawa WT5000 FOR RENT

Precision Power Analyzer 7-Slot Chassis

Order #: WT5000-RENT2

Mfg #: WT5000-RENT2

Call for price
Call for price

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Product Highlights

When using external current transducers (CTs) with power analyzers, the CTs require power to operate. Thus, they need to be connected to the analyzers via a multi-channel power supply. Transcat rents primarily Danisense and Yokogawa external CTs with Yokogawa power analyzers. See Accessories tab.

Superb accuracy has never been easier, thanks to multi-channel measurements, custom triggers and computations, advanced harmonic analysis and filtering, and user-friendly operation. The Yokogawa WT5000 precision power analyzer is a versatile platform that delivers extraordinary precision and exceptional performance for the most demanding applications. Equipped with seven user swappable and reconfigurable input elements plus four motor channels, the WT5000 high accuracy power meter is an ideal instrument for electrical and mechanical power and efficiency measurements. The Yokogawa power analyzer is now listed as an accepted device for SPEC Power® testing and IEC harmonic and flicker standards. Its out-of-the-box software solution, highly responsive touchscreen, and intuitive menu operations for simple connection, configuring, and use make the WT5000 an ideal instrument for your testing needs.

Unmatched Accuracy

The WT5000 is the world's most accurate precision power analyzer with a basic power accuracy of ±0.03%. Its accuracy specifications are guaranteed from 1% to 130% of the selected voltage and current ranges. With minimum influence of low power factor (0.02% of apparent power) the unit is also accurate at large phase shifts and frequencies.

  • AC power accuracy: 0.01% of reading + 0.02% of range
  • DC power accuracy: 0.02% of reading + 0.05% of range
  • 10 MS/s 18 bit ADC

Multi-channel Measurements

Measure from up to 7 different power phases at 10 MS/s (18 bits). The high resolution, 10.1 inch WXGA display allows split screen viewing of up to 7 waveforms and can display up to 12 pages of diverse measurement parameters, making it ideal for efficiency tests of inverter driven motors, renewable energy technologies and traction applications like pumps, fans and electric vehicles. Measurements are also displayed in vector format or trending in time.

Current sensor module with DC power supply

Use of the internal DC power supply for AC/DC current sensors simplifies the preparations before measurement and the measurement setup only requires the current sensor and a connecting cable. Using an external DC power supply and additional wiring is no longer required. There are three sensor connection cable lengths available; i.e., 3 m, 5 m, and 10 m.

Intuitive Operation

Operable by touch and/or hardware hot-keys independently, the WT5000 offers a seamless and intuitive experience that makes connecting, configuring and measuring easier than ever before. The 10.1 inch WXGA touchscreen delivers excellent noise immunity even in high noise environments such as motors and inverters.

Additional Touch Operations

The operability of the touch panel has been improved. "Time / div" can be set by pinch / out. Also, you can flick the waveform display contents.

Advanced Filtering

In addition to low pass frequency filters and line filters, the WT5000 features advanced filtering capabilities that provide unprecedented control to analyze even the toughest of waveforms with precision.

  • Synchronization source filter: Instead of synchronizing to zero crossings, users can select any specific point of the synchronization source signal.
  • Enhanced frequency filter: Allows users to simultaneously measure fundamental and switching frequencies without influencing any other parameter.
  • Digital Parallel Path filters: Supported by a high frequency anti-aliasing filter, two separate line filters for normal and harmonic measurements ensures accuracy without aliasing in wide band and harmonic measurements. Users can limit the number of harmonic orders to eliminate attenuation in low bandwidth measurements.

Advanced Harmonic Analysis

Evaluate and compare input and output harmonics of inverters, motors or power conditioners up to the 500th order. The WT5000 allows users to not only measure harmonics and power simultaneously but also offers side by side comparison of harmonics from two different input sources.

The effects of noise and aliasing are minimized by antialiasing and line filters with Digital Parallel Path technology allowing simultaneous power analysis of wide band and narrow band components.

Harmonics Regulation Test

Combined with the /G7 option and IEC Harmonic /Flicker measurement software, the WT5000 measured harmonic data can be saved into a PC and tested according to IEC regulations. To support large equipment over 16 A/phase (IEC61000-3-12) the CT200 current sensor model can be used.

  • Harmonics: EN61000-3-2, IEC61000-3-2, EN61000-3-12, IEC61000-3-12 and JIS C 61000-3-2

Numeric and Waveform Synchronized Data

The waveform data is streamed without any gaps up to 2 MS/s and is synchronized with the numerical data. Abnormal findings in numerical data can be directly linked and be evaluated in the waveform data. For example, one can find numeric parameter variations caused by the influence of imposed high-frequency noise.

Custom Triggers and Computations

Define and use event triggers and custom computations as per application needs. The event trigger function allows users to set limits to capture readings that fall within or outside a specific range of power, current or other parameters. Users can also define and use up to 20 different expressions for custom calculations. Data that meets the trigger conditions can be stored, printed, or saved to a USB memory device.

Applications

Electric Vehicle Development

Overview

Between 16 to 18% of the total charge of an electric car is consumed by electric drive system losses. Electric and hybrid car manufacturers therefore need to accurately evaluate motor and inverter control in order to achieve higher precision and greater efficiency. Additionally, the accurate analysis of inverter waveforms without interference from switching noise is a key part of evaluating the motor drive circuit.

Key requirements:

  • Multi-phase measurements from battery, inverter and motor
  • Evaluation of motor characteristics such as torque, rotation speed and direction, slip and electrical angle
  • Battery charging/discharging characteristics
  • Harmonic analysis of inverter signals at various rotation speeds

The WT5000 Advantage

With high accuracy, multi-channel power measurements, evaluation of up to 4 motors and harmonic comparison capabilities, the WT5000 helps automotive engineers improve conversion efficiency, shorten charging times and improve driving range. 

Guaranteed accuracy in multichannel measurements 
It enables simultaneous measurements of voltage, current, power, torque, rotation speed, electrical angle and mechanical power.

Motor evaluation and mechatronic efficiency 
Measure rotation speed, torque, and output (mechanical power) of motors from analog/pulse inputs of rotation or torque sensors. A single WT5000 can be configured for synchronized measurements from up to 4 motors simultaneously.

Battery charging & discharging characteristics
Integration of Instantaneous positive and negative values of energy allows the evaluation of battery charging and discharging characteristics.

Harmonics Analysis & comparisons 
With the ability to measure harmonics up to the 500th order even at low rotation speeds, the WT5000 supports harmonic analysis without the need for an external sampling clock. 

Renewable Energy Development

Overview

Energy generated by photovoltaic cell modules and wind turbines is converted from DC to AC by a power conditioner. Minimizing losses in these conversions is key to improve the efficiency of the overall energy system.

Key requirements:

  • Multi-phase measurements from boost converter, inverter and storage battery
  • Evaluation of maximum power and instantaneous peak values
  • Energy bought and sold in grid
  • Battery charging/discharging characteristics
  • Harmonic analysis of inverter signals at various generator speeds

The WT5000 Advantage

WT5000 helps engineers working in the development of renewable energy solutions, to improve conversion efficiency by offering precision insights in charging, discharging, storage and overall efficiency. 

Multi-channel Power measurements 
Evaluate Power conditioner efficiency with simultaneous measurements from the inputs and outputs of boost converter, inverter, and storage battery. With measurement capabilities from up to 7 input elements the WT5000 is ideal for voltage, current, power, and frequency (for AC) before and after each converter, as well as converter efficiency and charging efficiency. 

Instantaneous peak power 
In photovoltaic power generation, an Maximum Power Point Traker (MPPT) controller varies the voltage to maximize energy harvested from the solar panel. The WT5000 is capable of measuring not only the voltage, current, and power but also the voltage, current, and power peak values plus (+) and minus (?) sides, respectively 

Energy Bought/Sold and Charged/Discharged 
The WT5000E provides a current integration (q), apparent power integration (WS), reactive power integration (WQ), as well as effective power integration capable of integration in the power sold/bought and charge/discharge modes. 

Harmonics Analysis & comparisons 
Voltage fluctuations and harmonics flow into the power systems due to reverse power flow. The harmonic measurement function enables measurement of harmonic components to compute and display total harmonic distortion (THD) and harmonic distortion factor.

Inverter/Motor Drives

Overview

Motor drive technology has become more complex in recent years, pure sine-wave PWM is less common, and cases where the mean voltage differs greatly from the fundamental voltage waveform, are more frequent.

Key requirements:

  • Multi-phase measurements from battery, inverter and motor
  • Evaluation of motor characteristics such as torque, rotation speed and direction, slip and electrical angle
  • Harmonic analysis of inverter signals at various rotational speeds

The WT5000 Advantage

With high accuracy, multi-channel power measurements, motor evaluation and harmonic comparison capabilities, the WT5000 helps engineers in motor and drive development to improve power consumption and conversion efficiency in inverter/motor drive systems. 

Guaranteed accuracy across a wide range 
 The WT5000 guarantees a basic power accuracy of ±0.03%, between 1% to 130% of the selected voltage and current measurement ranges, at 50/60 Hz. 

Simultaneous measurements from the inputs and outputs of boost converter, inverter, and storage battery 

Inverter and motor efficiency 
In addition to computing power conversion efficiency of inverter and motor (up to 7 power inputs), the WT5000, also allows the measurement of rotational speed, torque, and output (mechanical power) from the analog/pulse inputs of rotation or torque sensor. 

Harmonics Analysis & comparisons 
With the ability to measure harmonics up to the 500th order even at low rotation speeds the WT5000 supports harmonic analysis without the need of an external sampling clock. 

Magnetic Characteristics Testing

Overview

In transformer or reactor development, the WT5000 can be used to evaluate magnetic material characteristics using Epstein frame system.

Key requirements:

  • High precision measurements of primary coil current and secondary coil voltage is needed.
  • High accuracy in low power factor is needed.
  • The magnetic flux density B and AC magnetic field H are key parameters to calculate iron loss.

The WT5000 Advantage

 Highest voltage and current accuracy
WT5000 provides highest power accuracy:
0.01% of reading + 0.02% of range (50/60 Hz)

High accuracy at low power factor
Effect of Power Factor of WT5000:
0.02% of S (0.5 A or more)
0.07% of S (200 mA or less)

Power Calibration 

Overview

For customers who use a large number of power meters, WT5000 can be used as a reference standard for periodic in-house calibration of power measurement instruments, such as the WT300E series and WT500. 

Key requirements:

  • Sufficient power accuracy is needed for power measurement instruments.
  • Power factor is adjustable, and the accuracy in low power factor is guaranteed.

The WT5000 Advantage

Highest power accuracy 
WT5000 provides highest power accuracy: 
0.01% of reading + 0.02% of range (50/60 Hz) 

High accuracy at low power factor 
Effect of Power Factor of WT5000: 
0.02% of S (0.5 A or more) 
0.07% of S (200 mA or less) 

How to Use

  • Only use the WT5000 precision power analyzer to measure parameters like current, voltage, and power.
  • Check that the instrument and its protection functions are in proper working condition before use.
  • Use a power supply with the correct voltage for the high accuracy power meter's rating, and don't use a power supply that exceeds its maximum voltage.
  • Always use the right power cord and plug.
  • Ensure protective grounding.
  • Don't use the WT5000 power analyzer around flammable gases or vapors.
  • Consult the instruction manual for full guidance on the front, rear, top, and touch panels, panel keys, system configurations, handling, installation, setup, wirings, inputs and outputs, troubleshooting, and more.

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