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YC-1891G Single-Phase Smart Electricity Meter Verification Device (Fully Electric)

The YC-1891G series is a high-performance smart electricity meter multifunctional calibration device, designed to meet the diverse needs of power supply, metering, and electricity meter manufacturing factories. It is fully capable of satisfying the various requirements for the calibration of State Grid smart electricity meters (both local and remote meters), including load switches, dual circuits, infrared communication, carrier communication, and simulated card insertion. The calibration device consists of an integrated digital synthesized sine signal source, a high-stability programmable power source, overload automatic protection circuits, current and voltage output transformation circuits, automatic pressure contact (pneumatic) for meter positions, working power supply circuits, standard electricity meters, and distributed error calculators, all of which are standard metrological instruments.

Specifications

No.

Technical Specification

Details

Power Supply

AC220V±15%, 50/60Hz±2Hz

Ambient Temperature

-10℃ to +40℃

Relative Humidity

35% to 85% R.H.

Output Voltage Range

0 to 480V

Voltage Resolution

≤0.01

Output Voltage Power

>10VA (per meter position)

Voltage Stability

≤0.02%/120s

Load Change Rate

≤0.01%

Voltage Distortion

≤0.3% (full linear load range)

Output Current Range

0 to 120A

Output Current Power

>15VA (per meter position)

Current Resolution

≤0.01%

Current Stability

≤0.02%/120s

Load Change Rate

≤0.01%

Current Distortion

≤0.3% (linear load range)

Output Phase

Phase adjustment range: 0 to 360°

Phase Resolution

0.01°

Output Frequency

Frequency adjustment range: 45 to 65Hz

Frequency Resolution

0.01Hz

Output Power

Output power stability: ≤0.02%/120s

Error Display

Signal reading: from electronic pulse signal end or LED optical signal end

Display Method

LED digital display (8 digits)

Communication Protocol

Fully compliant with DL/T645-2007 and its DL/T645-2009-001/002 two filing documents

Standard Features:

Startup and Creeping Performance Testing

Positive and Reverse Active and Reactive Power and Energy Error Testing

Counter Indication Error Testing

Counter Combination Error Testing

Verification of Calibration Constants

RS485 Communication Testing

Daily Timing Error Testing

Time-Segment Switching Error Testing

Demand Indication Error Testing

Demand Cycle Error Testing

Error Consistency Testing

Load Current Step Change Testing

Special Features:

Combined Active and Reactive Power Mode Testing

Tariff Time-Segment Energy Indication Error Testing

Remaining Energy Decrement Accuracy Testing

Local and Remote Billing Control Function Testing

Stepwise Electricity Price Switching Function Testing

Built-in and External Load Switch Performance Testing

Current Overload Performance Testing

Short-term Overvoltage Performance Testing

Dual Current Loop Testing (Optional)

Infrared and Carrier Communication Testing (Optional)

Power Consumption Testing (Optional)

Voltage, Frequency, Harmonics, and Other Influencing Factor Testing

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