Guangzhou GENY Electric Co., Ltd
Professional in Energy Meter Testing
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The YC-1891G Single-Phase Intelligent Electricity Meter Calibration Device is meticulously crafted and calibrated to align with the stringent standards set by the State Grid Corporation of China (SGCC), specifically for a range of smart meters utilized in the Southern Grid region. This advanced calibration instrument is thoughtfully engineered to accommodate the diverse requirements of various user groups, encompassing power supply entities, metering system operators, and electricity meter manufacturers. It is fully equipped to address their specific calibration requirements, ensuring precision and reliability in the measurement and verification of smart electricity meters.
| Category | Specification Name | Specification Parameters |
| Power Supply | Voltage | AC220V ± 15% |
| Frequency | 50/60Hz ± 2Hz | |
| Environmental | Temperature | -10°C to +40°C |
| Conditions | Humidity | 35% to 85% R.H. |
| Output Voltage | Range | 0 to 480V |
| Resolution | ≤ 0.01V | |
| Power | > 10VA (per step) % | |
| Stability | ≤ 0.02%/120s | |
| Load Change Rate | ≤ 0.01% | |
| Distortion | ≤ 0.3% (full linear load range) | |
| Output Current | Range | 0 to 120A |
| Power | > 15VA (per step) | |
| Resolution | ≤ 0.01% | |
| Stability | ≤ 0.02%/120s | |
| Load Change Rate | ≤ 0.01% | |
| Distortion | ≤ 0.3% (linear load range) | |
| Output Phase | Phase Range | 0 to 360° |
| Resolution | 0.01° | |
| Output Frequency | Range | 45 to 65Hz |
| Resolution | 0.01Hz | |
| Output Power | Stability | ≤ 0.02%/120s |
| Error Display | Signal Reading | From electronic pulse signal or LED light signal |
| Display Method | LED digital display (8 digits) | |
| Communication Protocol | Fully compliant with DL/T645-2007 and DL/T645-2009-001/002 standards |
Startup and Submerged Operation Testing - Evaluates the meter's performance during startup and under submerged conditions.
Power and Energy Measurement Accuracy Testing - Assesses the accuracy of active and reactive power, as well as energy measurements.
Meter Reading Accuracy Testing - Verifies the precision of the meter's displayed readings.
Meter Combination Error Testing - Examines the cumulative error when multiple meters are used in conjunction.
Calibration Constant Verification - Confirms the accuracy of the meter's calibration constants.
RS485 Communication Testing - Ensures reliable data transmission and reception via the RS485 interface.
Daily Timing Accuracy Testing - Validates the meter's timekeeping accuracy for daily operations.
Time-Segment Switching Accuracy Testing - Assesses the precision of time-segment switching, which is crucial for time-of-use billing.
Demand Reading Accuracy Testing - Verifies the accuracy of demand readings, which are important for demand-based billing.
Demand Cycle Error Testing - Examines the accuracy of demand cycle measurements, which are used for demand-based billing.
Error Consistency Testing - Ensures that error measurements are consistent across various operating conditions.
Load Current Step Change Testing - Tests the meter's response to sudden changes in load current, which is important for dynamic load conditions.
