Three Phase Multifunctional Electric Energy Meter Verification Device
Professional-grade verification equipment designed for utility company applications, featuring advanced testing capabilities for electric energy meters.
Key Features
- Integrated digital multi-function standard meter with combined meter and power source structure
- Advanced DDS technology with CPLD and 32-bit embedded system for high signal stability and low distortion
- RAM system with large color LCD display showing comprehensive electrical parameters and analysis charts
- Digital power amplifier with over 90% efficiency and 300KHz carrier frequency
- Comprehensive protection functions including voltage short circuit, open circuit, and overload alarms
- Built-in OCXO for 50KHz high precision impulse output for energy meter clock calibration
- 485 communication interface for universal meter communication testing
- Standalone operation capable with storage for 1,000 calibrated meters' data
- USB interface for upgrades, data output, and peripheral connectivity
Technical Specifications
| Instrument Accuracy Level |
0.05 or 0.1 |
| PC Connection Terminal |
RS232 Communication Interface |
| Output Voltage |
3*57.7V Y, 3*100V, 3*220V Y, 3*380V (0~120% adjustable) |
| Output Current Range |
25mA, 0.1A, 1A, 5A, 25A, 100A (Minimum: 1mA) |
| Output Power |
Voltage Circuit: 3*50VA, Current Circuit: 3*150VA |
| Output Stability |
≤0.02%/120S |
| Waveform Distortion |
≤ 0.5% |
| Three Phase Symmetry |
Better than 120°±0.3° |
| Frequency Range |
45Hz~65Hz (0.1Hz regulation) |
| Phase Range |
-180.0° ~180.0° (0.1° regulation) |
| Power Supply |
230V±10%~50Hz |
| Maximum Power Consumption |
300VA |
| Working Environment |
Temperature: 20℃±5℃, Relative Humidity: ≤85% |
Advanced Testing Capabilities
Capable of performing 2nd to 21st order harmonic testing, voltage interruption and drop testing with adjustable harmonic amplitude.
Product Images