The YC-1893R series three-phase electrical energy standard verification equipment is a high-grade three-phase standard system developed by our company, featuring world-class performance comparable to similar international systems. With an overall accuracy class of 0.01, this premium standard electrical energy testing equipment is tailor-made for institutions such as national and provincial/municipal metrology institutes, electrical power research institutes, and manufacturers of electrical energy metering products. It is primarily used to establish primary standards or serve as a working standard for verifying reference meters.
Measurement of active power, reactive power, active energy, and reactive energy
Start-up and creep testing
Automatic index mark detection for accelerated creep/start-up testing
Measurement of fundamental error, mean error, standard deviation, and 24-hour variation
Voltage influence, frequency influence, harmonic influence (2nd-21st order), and phase sequence influence testing
Simultaneous verification of standard energy meters with identical voltage/current parameters but different meter constants
Integrated current open-circuit protection and voltage short-circuit protection
Dual operation modes: automatic and manual
Automated error data processing, storage, and real-time output via software
Advanced data management and statistical analysis with configurable reporting formats
Barcode scanner compatibility
Precision power supply design eliminating beat frequency interference
Site-specific structural configuration
|   Device Accuracy Class  |    0.01% or 0.02%  |  
|   Power Supply  |    3P4W 3×380V±10%, 50Hz±2Hz  |  
|   Ambient Temperature  |    -10℃ ... +40℃ (Standard Operating Temperature: 20℃±1℃)  |  
|   Ambient Humidity  |    35% ... 95% (Standard Operating Humidity: 50%R.H±15%R.H)  |  
|   Output Voltage Range (L-N)  |    3×40V ... 450V  |  
|   Output Voltage Power  |    3×200VA  |  
|   Voltage Resolution  |    0.001%  |  
|   Voltage Stability  |    0.002%/120s  |  
|   Load Change Rate  |    0.01%  |  
|   Voltage Distortion  |    0.05% (Across the Entire Linear Load Range)  |  
|   Output Current Range  |    3×1mA ... 120A (Up to 230A Current as Per Customer Request)  |  
|   Output Current Power  |    3×300VA  |  
|   Current Resolution  |    0.001%  |  
|   Current Stability  |    0.002%/120s  |  
|   Current Distortion  |    0.05% (Across the Entire Linear Load Range)  |  
|   Phase Adjustment Range  |    0° ... 360°  |  
|   Phase Resolution  |    0.01°  |  
|   Frequency Adjustment Range  |    45Hz ... 65Hz  |  
|   Frequency Resolution  |    0.001Hz  |  
|   Power Output Stability  |    0.002%/120s  |  
|   Continuous Current  |    100A  |  
|   Maximum Continuous Current for 20 Minutes  |    120A  |  
|   Frequency Response  |    2MHz  |  
|   Error Display Method  |    LED Display (One Display Window per Meter Position)  |  



