TD3740 Energy Meter Durability Test Device
*Reference only. Configurations and details may vary depending on the application scenario.
1. Summary
TD3740 is a device specially designed to meet the durability test of R46 single-phase/three-phase AC energy meters. The device consists of a standard power source, a meter rack, etc., including three types: TD3740-S (single-phase), TD3740-T (three-phase) and TD3740-ST (single-phase and three-phase compatible). The power/electric energy accuracy is class 0.05. It can be used with high and low temperature test chambers to complete energy meter durability tests and other testing projects.
2. Features
• Three-phase output: maximum voltage 456 V, maximum current 120 A.
• High reliability: Continuous operation at the load point (1.1Umax, Imax) for 1000h can ensure the stability of the value output.
• Phase diagram display: The phase between the three-phase electricity can be adjusted arbitrarily, and it can display phase diagram.
• The software has comprehensive data management functions, convenient data retrieval, and automatic backup function.
• The software can output statistical reports such as verification certificates and test reports; it supports document saving and printing in multiple formats.
3. Appearance
☆ Instruments Introduction | |
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S/N | Description |
| Multi-meter error display screen |
| Standard meter (optional) |
| Standard power source |
| Power switch and emergency stop switch |
| Meter hanging rack |
4. Specification
4.1 Voltage Output
Range | Resolution | Short-term Stability ( % / min ) | Measurement Uncertainty (k=2) ( ppm*RD+ppm*RG) [1] | Distortion ( % ) |
60 V | 0.1 mV | 0.01 | 200 + 50 | < 0.3 |
120 V | 1 mV | 0.01 | 200 + 50 | < 0.3 |
240 V | 1 mV | 0.01 | 200 + 50 | < 0.3 |
380 V(Three-phase only） | 1 mV | 0.01 | 200 + 50 | < 0.3 |
Note [1]: RD is the reading, RG is the range, the same below | ||||
• Output range: single-phase 6~264 V, three-phase 6 V~456 V,
• 6-digit display, load capacity: 15 VA/(phase/meter position)
• Symmetry: voltage ≤ 0.2%, phase ≤ 0.5°
• Protection function: short circuit protection, overload protection
4.2 Current Output
Range | Resolution | Short-term Stability ( % / min ) | Measurement Uncertainty (k=2) ( ppm*RD+ppm*RG) | Distortion ( % ) |
50 mA | 0.1μA | 0.02 | 200 + 50 | < 0.5 |
100 mA | 1μA | 0.01 | 200 + 50 | < 0.5 |
200 mA | 1μA | 0.01 | 200 + 50 | < 0.5 |
500 mA | 1μA | 0.01 | 200 + 50 | < 0.5 |
1 A | 10μA | 0.01 | 200 + 50 | < 0.5 |
2 A | 10μA | 0.01 | 200 + 50 | < 0.5 |
5 A | 10μA | 0.01 | 200 + 50 | < 0.5 |
10 A | 100μA | 0.01 | 200 + 50 | < 0.5 |
20 A | 100μA | 0.01 | 200 + 50 | < 0.5 |
50 A | 100μA | 0.01 | 200 + 50 | < 0.5 |
100 A | 1mA | 0.01 | 200 + 50 | < 0.5 |
• Output range: 5 mA ~ 120 A, 6-digit display, load capacity: 30 VA / (phase/meter position)
• Symmetry: current ≤ 0.5%, phase ≤ 0.5°
• Protection function: open circuit protection, overload protection
4.3 Frequency/Phase
Frequency | Measuring range | 45 Hz ~ 65 Hz |
Minimum resolution | 0.000 01 Hz | |
Measurement uncertainty (k=2) | 0.005%*RD | |
Phase （I ≥ 50mA） | Measuring range | 0 ~ 360° |
Minimum resolution | 0.000 1° | |
Measurement uncertainty (k=2) | 0.012° |
4.4 Power/Energy
Current Range | Power Factor | Measurement Uncertainty (k=2) |
50 mA ≤ I ≤120 A | 0.5L~1~0.5C | 0.05%*RD |
10 mA ≤ I < 50 mA | 1 | 0.05%*RD |
0.5L~1~0.5C | 0.08%*RD | |
5 mA ≤ I < 10 mA | 1 | 0.08%*RD |
0.5L~1~0.5C | 0.15%*RD |
• Output power stability: 0.02% / 2min;
• Power/ energy measurement range: combination of AC voltage range and AC current range;
• Power factor measurement range: -1.000 00…0.000 00…1.000 00;
• Standard energy pulse output: high frequency full range value corresponds to 60 kHz, low frequency full range value corresponds to 6 Hz;
• Standard electric energy pulse input: frequency ≤ 200 kHz, voltage: 0…3.3 V…24 V;
• Energy error display: automatic, with a resolution of 0.0001%.
5. General Specification
Power Supply | Single-phase AC ( 220 ± 22 ) V, ( 50 ± 2 ) Hz |
Warm-up Time | 30-min |
Temperature Performance | Working temperature: 5°C~45°C； Storage temperature: 10°C~55°C |
Humidity Performance | Working humidity: < 80% @ 30°C, < 70% @ 40°C, < 40% @ 50°C Storage humidity: (20%~80%) R H, no condensation |
Altitude | < 3000 m |
Communication Interface | RS232 |
6. Ordering Information
Advanced Multifunction Calibrator Advanced Electrical Reference Standards Electric Vehicle （EV）Charging Facility Tester AC/DC Standard Source /Meter Single-phase/Three-phase Standard Meter Magnetic Parameters Measurement and Calibration Magnetic Material Testing Equipment Electrical Steel Testing Equipment