0.01 Accuracy Three-Phase Meter Test Bench
Special Functions
Forward and reverse active energy testing Forward and reverse reactive energy error testing SW-5D bridge wiring method for basic error testing of programmable
energy meters Communication testing, remote meter reading, and computer time
synchronization Meter constant (pulse constant) verification, including: Pulse counting method Time measurement method Stopwatch method
Time-of-use (TOU) testing, maximum demand testing, and display
value error verification Influence tests, including: Voltage unbalance test High-order harmonic test
Disturbance tests, including:
General Functions
Measurement functions: Active power, reactive power, active energy,
reactive energy, starting test, and creep test for three-phase
energy meters Accuracy evaluation: Basic error, mean error, standard deviation,
and 24-hour stability test for high-accuracy calibration Voltage and current output: Adjustable frequency and harmonic
generation (1st–64th order), supporting phase sequence influence
testing Multi-meter calibration: Simultaneous calibration of energy meters
with different accuracy classes and phase sequences; automatic
identification of meter constants Safety protection: Current open-circuit protection and voltage
short-circuit protection to ensure reliable calibration operation Operating modes: Automatic and manual calibration modes Data processing: Automatic error calculation, data processing, data
storage, and PC-based online output Interfaces: Optical and pulse input channels, flexible
configuration, supporting multi-channel meter input Power source system: Modular high-power three-phase source, special
power design with high efficiency and low loss Standards compliance: Fully compliant with IEC 62053, IEC 597, and
R46 requirements for energy meter calibration systems Mechanical structure: Robust, practical, and professional
industrial design for laboratory applications
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