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:

  • Voltage dip test

  • Short-duration power interruption test

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