The YC-1893D series three-phase electricity meter calibration device is a versatile testing solution designed for power departments, electricity meter manufacturers, metrology and quality inspection departments, and industrial enterprises. This system provides comprehensive calibration and testing capabilities for various meter types including three-phase three-wire, three-phase four-wire multifunctional meters, electronic meters, mechanical meters, electromechanical integrated meters, and multi-user electricity meters.

• Active and reactive power/energy measurement
• Starting and creeping tests with automatic marking search
• Basic error, average error, standard deviation, and 24-hour variation analysis
• Voltage, frequency, harmonic (2nd to 21st), and phase sequence influence testing
• Simultaneous measurement of current and voltage with different meter constants
• Current open-circuit and voltage short-circuit protection
• Automatic and manual operation modes with photoelectric head collection
• Comprehensive data management with automatic storage and reporting
• Barcode input support and 3 to 48 meter position options

• Forward and reverse active/reactive power error testing
• SW-5D precision time base source for daily timing error measurement
• Communication testing and broadcast time synchronization
• Constant verification via pulse count, time, and start-stop energy methods
• Time slot switching, demand cycle, and demand reading error tests
• Meter reading and combination error testing
• Four-quadrant reactive power testing
• Optional: Power consumption testing, parallel wiring, tilt influence, and prepaid meter functions