Multifunctional Three-Phase Meter Field Calibrator
Product Introduction
The MEDX-W3Y Multifunctional Three-Phase Meter Field Calibrator leverages the latest technological advancements to deliver unprecedented functionality. It enables simultaneous, precise measurement and calculation of full-wave, fundamental, and harmonic components.
Its efficient touch interface allows clear selection of your desired functions even within complex menus. For basic testing, operation remains as straightforward as previous instruments. For harmonic analysis, we test all harmonic parameters.
Product Parameter (specification)
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Voltage |
Guarantee error range |
25-600V |
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Start measurement value |
0.5V |
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Rated value |
440V |
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Error level |
±0.05% |
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Current |
terminal |
Rated Ie |
5A |
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scope |
0.025A-12A |
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clamp meter |
Rated Ie |
5A, 100A, 500A, 1000A |
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scope |
0.5% Ie - 2.4 Ie |
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Starting current |
0.02%Ie |
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Input frequency range |
45-65Hz |
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Frequency measurement error |
±0.0 1Hz |
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Phase measurement range |
-180°- 180° |
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Maximum phase error |
± 0.1 ° |
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Harmonic percentage, harmonic electrical parameters, number of harmonic energy measurements |
2-51 times |
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Pulse constant (Note: Ie -- rated current) |
low frequency output (Three gears) |
5A |
3600P, 36000P, 360000P/kWh (kvarh, kVAh) |
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other |
3600P, 36000P, 360000P *(5/Ie) P/ k Wh (kvarh, kVAh) |
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Internal high frequency |
5A |
1.8 x 10⁹ P / kWh |
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Other current settings |
1.8x10⁹ * ( 5/Ie) P/ kWh |
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Maximum pulse input frequency |
50kHz |
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5A terminal |
Full-wave fundamental kWh, P, U, I |
±0.05% |
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Full wave fundamental wave Kvarh, Q, VA, VAh |
±0.2% |
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Harmonics U, I, P, Q, S |
±0.2%H (H=1+0.01k K=2-51) |
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5A clamp meter |
Full-wave fundamental kWh, P, U, I |
±0.2% |
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Full wave fundamental wave Kvarh, Q, VA, VAh |
± 0.2 % |
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Harmonics U, I, P, Q, S |
±0.5% H (H=1+0.01k K=2-51) |
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Self-test current cyclic output current |
0.05A,0.1A,0.25A,0.5A,1A,2.5A,5A |
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Self-checking errors (linearity and angle difference) |
± 0.1 % |
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High Current Clamp |
Full-wave fundamental kWh, P, U, I |
±0.5% |
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Full wave fundamental wave Kvarh, Q, VA, VAh |
±0.5% |
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Harmonics U, I, P, Q, S |
±1.0% H (H=1+0.01k K=2-51) |
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other |
Transformer ratio measurement |
± 0.5 % |
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Voltage effect |
< ±0.01% |
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Frequency influence |
< ±0.01% |
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Temperature effect |
< ± 0.005 % / ℃ |
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24-hour deterioration |
< ±0.01% |
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Harmonic effects |
< ±0.01% |
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rechargeable batteries |
11.1V 3000mAh |
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Withstand voltage (voltage and current measurement and between power supply and low voltage terminals) |
4.0 kV |
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Electrical Fast Transient Burst |
4.0 kV |
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surge |
4.0kV (common mode), 2.0kV (differential mode) |
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Startup stability time |
<3 minutes |
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Ambient temperature |
-25℃ to +45℃ |
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relative humidity |
40%-95% |
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working power supply |
AC 55V - 600V |
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achievement Consumption |
< 9W |
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External dimensions |
275mm * 196mm * 78mm |
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Heavy quantity |
< 1.5 kg |
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Product feature and application
- Simultaneously calculate all parameters for full-wave, fundamental, and harmonic components On the verification interface, simultaneously display in real-time the full-wave fundamental's U, I, P, Q, VA, and phase angle, along with the harmonic's composite U, I, P, Q, VA and percentage, positive-sequence, negative-sequence, and zero-sequence content of U and I, harmonic PH+, PH-, PH+/P base%, PH-/P base%, total wave PF, fundamental PF, and harmonic PF
- Calibration modes include seven types: total wave active, total wave reactive, fundamental active, fundamental reactive, fundamental apparent, total wave apparent, and harmonic active Can verify the active energy accuracy of full-wave meters, fundamental-wave meters, and harmonic meters, as well as the reactive energy accuracy of full-wave meters and fundamental-wave meters Can also verify the accuracy of apparent energy meters
- Can select any single or multiple harmonics to calculate the composite U, I, P, Q, VA, and percentage, as well as harmonic active energy
- Simultaneously analyzes the content and measured values of U, I, P, Q, and VA for each harmonic of all three phases Displays the st harmonic + PH, harmonic - PH, and percentage relative to the fundamental wave to determine the impact of positive and negative harmonic active energy on metering
- Total reactive power is the algebraic sum of fundamental and harmonic reactive components This eliminates measurement errors under harmonics caused by the traditional -degree phase-shift method Select harmonic orders based on the meter's measurement bandwidth
- Simultaneously detects two test pulses with fully independent constants, operating modes, and pulse counts
- At times overload, all measurement points guarantee % accuracy, ensuring measurement specifications when CT secondary rated current is A Measurement specifications guaranteed across times current range;
- Measurement specifications guaranteed across times current range, with , times current display range Minimum start-up current of mA High-supply high-metering capability; wiring can be identified even under no-load conditions
- Energy accumulation function verifies meters without pulse output
- Displays vector diagrams, identifies three-wire and four-wire wiring errors, and detects CT secondary cross-wiring
- Features a -inch : industrial-grade TFT widescreen color touchscreen Each instrument function is displayed on a single screen, allowing users to view all parameters for every function without scrolling This provides clear visibility during operation
- Without connecting voltage or current signals, the instrument can simulate various field wiring configurations in an office environment, generating corresponding wiring results and correction factors This feature serves as a training tool for wiring verification, enhancing field personnel's troubleshooting skills
- The instrument generates actual current signals ranging from A to A, which can be applied to the A clamp to measure its measurement error This resolves the issue of error drift in A clamps after prolonged use It allows real-time monitoring of the clamp's closure status, alerting personnel to clean the jaws When replacing the A clamp, the measurement error can be corrected to Class accuracy
- Automatic Energy Meter Number Entry (Optional Feature)
- Supports barcode scanners for automatic entry of energy meter codes
- Utilizes or infrared photoelectric heads to read the active and reactive energy readings for off-peak, peak, normal, and total periods from multifunctional electricity meters, as well as reading constants and time calibration Supports national standards DL protocols DL- and DL- (Optional feature)
- Built-in GB electronic disk
- Supports -inch on-site printer, battery-powered, directly converting color screen images to monochrome for printing
- Includes A, A, A, A clamp meters for direct measurement of low-voltage current transformer ratio and ratio error
- Displays waveforms for A, B, and C phase voltages and currents
- Operating power input range: V-V Industrial socket rated voltage for three-phase input is V Industrial-grade switch selects between external mains power and three-phase voltage as operating power source
- All field-required input parameters and downloadable data can be freely defined by the user Supports downloading data for up to users
- Current screen can be saved to a USB flash drive
- Features temperature and humidity measurement (requires temperature/humidity sensor)
- Equipped with a USB port for connecting a USB flash drive, creating an extended storage space for convenient data copying
Prodection details
Field Inspection of Power Systems:
The three-phase electricity meter field calibrator is specifically designed for on-site verification of operational errors and fault detection in grid metering instruments within power systems.
01
Calibrating Meter Errors:
Enables on-site verification of electricity meter errors, inspection of correct wiring in metering devices, and detection of current transformer ratio and polarity for metering purposes.
02
Power Quality Measurement:
Features the capability to measure user power quality parameters, including voltage harmonics, current harmonics, voltage unbalance, and total harmonic distortion (THD).
03
Detection of Electricity Theft:
Through testing, it can determine whether users engage in electricity theft, whether metering accuracy meets national standards, whether users cause harmonic pollution affecting grid quality, and whether power factor meets requirements, thereby preventing losses in the power system.
04
No-Load Calibration:
Features a specially designed three-phase source output function for convenient on-site no-load calibration.
05
Company Qualifications
Wuhan Moen Intelligent Electric Co., Ltd. is situated in the Optics Valley's Wuhan East Lake High-Tech Development Zone, China's "National Independent Innovation Demonstration Zone." 8,000 square meters of buildings make up the company's 28-acre property. As a specialized business involved in the design and production of electrical equipment, it mainly supplies sophisticated high-voltage testing and detection tools to the power system's power generation, power supply, and power consumption departments as well as research facilities and power equipment manufacturers. One of the first producers in China to specialize in high-voltage testing, the company was founded in 1992 at the Wuhan High-Voltage Research Institute's High-Voltage Testing Equipment Manufacturing Plant.
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