Three-Phase Electric Energy Meter Calibration Bench
Product Introduction
The MEDT-WP/3M Three-Phase Multifunctional Energy Meter Calibration Bench uses single-chip microcomputers, digital electronics, and analog circuits, among other cutting-edge technology. Digital synthesis, digital frequency modulation, digital amplitude modulation, digital phase shift, and pulse width modulation techniques are all incorporated into this power source, which is based on an MCU microcontroller. Its most noteworthy features are high operational reliability and excellent load characteristics, making it an ideal next-generation multi-position energy meter calibration device. It overcomes the drawbacks of conventional linear amplifiers, such as low efficiency, excessive heat generation, and poor reliability.
Prepaid energy meters, multi-rate energy meters, electronic and electromechanical three-phase multifunction meters, and basic energy meters can all be verified using this energy meter. Reactive energy meters, such as three-phase four-wire cross-phase reactive, three-phase four-wire sinusoidal reactive, three-phase three-wire sinusoidal reactive, and three-phase three-wire 60-degree phase-shift reactive meters, can be calibrated using a variety of measurement methodologies.
This energy meter can be used with the associated program on a computer or with its own panel keyboard. Both approaches are clear-cut and easy to use.
Product Parameter (specification)
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Power Supply |
220V ±10%, 50Hz/60Hz; |
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Maximum Power Consumption |
1800VA; |
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1. Phantom Load Power Source Specifications |
◆ Output Voltage;3x30V(AC) - 3x380V(AC); Adjustment Resolution;0.01% of current range; ◆ Output Current;0.1A(AC) - 100A(AC); Adjustment Resolution;0.01% of current range; ◆ Phase Shift Range;0-360°; Adjustment Resolution;0.1°; Voltage/Current Output Frequency;45Hz-65Hz; Adjustment Resolution;0.01 Hz; |
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◆ Waveform distortion during sine wave output |
Voltage, Current < 0.5%; |
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◆ Voltage, current, and power stability of the power source during sine wave output |
<0.1% (180s); |
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◆ Load characteristics |
Capable of driving resistive loads, inductive loads, and capacitive loads (less than 4uF); |
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Output waveform |
Capable of generating sine waves; Capable of generating 2nd to 21st harmonics, with total harmonic distortion < 40%; Capable of generating odd-numbered harmonics; Capable of generating sub-harmonics; |
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Output capacity |
Voltage source Maximum 160VA; Current source Maximum 650VA. |
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2. Standard Energy Meter Specifications |
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◆Model |
HDS322-02 Multifunctional Standard Meter; |
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◆Power Supply |
220V/240V ±10%, 50Hz; Maximum Power Consumption;30VA; |
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◆Measurement Functions |
Voltage Measurement Range;40V(AC) - 480V(AC); (Internal ranges;60/120/240/480) |
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◆Current measurement range |
0.001A(AC) - 100A(AC); (Internal ranges;0.02/0.05/0.1/0.2/0.5/1/2/5/10/20/50/100) |
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◆Accuracy Class |
0.05 or 0.1; |
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Active Energy Measurement Accuracy |
0.05% 0.1% (PF>0.5); |
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Reactive Energy Measurement Accuracy |
0.1% 0.2% (PF>0.5); |
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◆Warm-up Time |
30 minutes; |
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◆Operating Environment |
Temperature +5°C to +40°C; |
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◆Relative Humidity |
<85%; |
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◆No corrosive gases. |
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Product feature and application
1) Makes use of digital power amplification technology, also referred to as pulse width modulation power amplification technology, which provides excellent stability and dependability with a power amplifier conversion efficiency of more than 90%;
2) Software-driven output voltage and current start/stop;
3) Automatic current output range switching; automatic voltage or current output defect detection, alarm, and protection;
4) Outstanding stability, superior dependability, and advantageous load characteristics;
5) High output power: current output range (200VA-1000VA), voltage output range (200VA-1000VA);
6) Able to simultaneously calibrate electricity meters with different energy constants but the same specifications;
7) Has an optional optical head collecting function to improve calibration efficiency and an automatic marker search function that facilitates creep and start-up testing;
8) The unit body incorporates a standard RS485 communication interface that, when combined with software, can test the communication port of electricity meters (users can also perform secondary development on other functions based on our company's secondary development manual to meet their specific electricity meter testing requirements);
9) Outfitted with Windows-based PC management and operating software; calibration results can be printed, saved, and queried;
10) gives higher-level management systems access to an open database file format for network-level error data management;
11) has an aesthetically beautiful appearance, a logical design, a flexible setup, and a clear structure. Split-type and integrated structures are the two different styles that are available.
Prodection details
This device is used to calibrate different kinds of electronic/electromechanical three-phase multifunction meters, multi-tariff meters, prepaid meters, and other electricity meters. It is appropriate for power metering, electricity meter makers, and quality inspection agencies. It is capable of testing several characteristics, including creep, beginning, error, and harmonic influence. It is appropriate for situations like laboratory verification, factory inspection, and field calibration since it supports the simultaneous calibration of several meter positions.
Company Qualifications
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