Three-Phase Multifunctional Electrical Tester

Three-Phase Multifunctional Electrical Tester

A new generation of precision AC power measuring instruments, with an accuracy of 0.2/0.5 class, specifically designed for on-site verification of three-phase power meters and comprehensive testing of AC power parameters.

Multi-parameter integrated measurement, intelligent line checking and error correction, data storage and transmission, dual power supply for extended battery life, and convenient dual operation of touch screen and buttons.

Electricity metering verification, on-site electricity inspection, power quality analysis, and skills training for power operation and maintenance personnel.

The MOEORW-WND35 three-phase multi-functional power meter is a new generation of precision AC power measuring instrument, mainly used for on-site calibration of three-phase power meters and measurement of various AC power parameters.

It adopts a 32-bit ARM and DSP processor, a high-resolution color LCD display, a multi-channel 16-bit precision A/D converter, a built-in high-precision wide-range current transformer, and can be configured with various current clamps, giving it an extremely wide measurement range and high measurement accuracy.

According to their accuracy levels, they can be divided into two categories: 0.2 and 0.5. The 0.2 level is a three-phase power meter field calibrator, and the 0.5 level is a three-phase power consumption inspection and comprehensive tester.

1.Basic error limit

2.Safety features

Withstand voltage: The voltage input terminal, the AC charging power input terminal and the instrument housing, and the clamp current transformer core and leads and the clamp handle can withstand a 1kV/50Hz sinusoidal AC voltage for 1 minute.

Insulation resistance: The insulation resistance between the test points mentioned above is greater than 100MΩ/1kV.

3.Instrument dimensions and weight

Inspection instrument main unit: 275×200×72 mm , weight: 1.5kg

Clamp-on current transformer: 140×40×19 mm , weight: 0.160 kg/piece

Overall dimensions (including accessories) : 423 × 336 × 126 mm , weight: 6.5 kg/set

Accessory box dimensions : 280 × 235 × 130 mm , weight: 1.5 kg /set

4.Usage conditions

Operating environment: Temperature -15℃ to +45℃; Operating humidity ≤90%RH

Storage environment: Temperature -30℃ to +60℃, storage humidity ≤95%RH

Altitude: <1500 meters

5.working power supply

AC PT measurement terminal power supply: AC80V-480V, power consumption 7.5VA

External power socket: AC220V 50Hz

DC lithium battery: 2.2 Ah / 7.4 * 2 Charging time > 8 hours Charging cycles > 500 times

• It features a 7-inch 800*480 dot matrix TFT true color LCD display with a graphical user interface that can be operated via touch screen or buttons, providing a clear and intuitive display.
• Automatic range switching function, no manual switching required.
• Main and secondary meter verification: Two energy pulse signals can be connected simultaneously to verify the active and reactive energy meters.
• Error curve recording displays a schematic diagram of the error curve and error monitoring data.
• Verification methods for electricity meters: capable of verifying single-phase, three-phase active and reactive electronic electricity meters, standard electricity meters, mechanical electricity meters, electromechanical integrated electricity meters, prepaid electricity meters, and multi-functional electricity meters.
• Measurement with multiple wiring methods: It can measure AC voltage, current, and power (active power, reactive power, and apparent power) in various wiring methods such as single-phase and three-phase Y/Δ.
• Parameter measurement: Measures various parameters such as AC voltage, current, power, energy, frequency, phase, power factor, waveform distortion, energy pulse constant of the meter under test, low-voltage CT ratio, and angle difference.
• Waveform display and harmonic measurement: It can measure the harmonic content and amplitude of voltage/current up to the 31st order, and display the histogram.
• Automatically detects wiring errors in P3/P4 energy meters, points out the location of the incorrect wiring, displays the secondary wiring diagram and power expression, and automatically calculates the correction factor.
• Without the input of voltage or current signals, the instrument can simulate and derive the corresponding wiring results based on field data. The wiring simulation function can be used as a training tool for wiring inspection, improving the wiring inspection skills of field personnel.
• Power stability: Three power stability algorithms are available.
• Load curve recording (trend recording): Select any 4 items from the data items such as voltage, current, frequency, power, and power factor to record.
• It has functions for accumulating electrical energy and running time testing.
• Calculation of voltage quality imbalance.
• Vector calculator, used for on-site calculation of voltage and current vector sums.
• Optional 500A or higher current clamps can be used to achieve real-load measurement of the comprehensive error of low-voltage power metering devices.
• Dual power supply: AC measurement terminals are directly powered by 80V-450V, and the built-in high-capacity 7600mAh lithium battery provides power.
• It can save 4000 sets of measurement data, and users can view the saved data sets and vector diagrams.
• It has a built-in standard English character library and uses an intelligent English character input method to input Chinese characters, letters, numbers, and other stored content.
• The instrument is equipped with a USB interface, allowing measurement data to be directly exported to a computer for management via a USB flash drive. The host computer management software enables functions such as browsing, editing, printing (A4 size ) standard format test reports, and backup of instrument data.
• The instrument is equipped with a 485 interface to read the energy data of a multi-function energy meter (national standard 645 protocol).
• Optional Bluetooth wireless communication function: Bluetooth wireless + smart APP dedicated data acquisition software can realize synchronous data transmission, viewing, storage and analysis on Android handheld terminal . The handheld terminal can realize on-site evidence collection, photo taking and geolocation functions.