1. Summary
TD3550 is a new type of energy meter verification device used to verify that it meets the OIML R46 instruction. It mainly consists of single-phase precision standard power source, verification platform, measurement and control platform, PC(optional) and verification software. TD3550 supports simultaneous verification of 6 ~ 24 single-phase electricity/mechanical energy meters, smart meters and IOT electricity meter, etc. with the same voltage/current range, different meter constant.
2. Features
2.1 Basic Features
• Maximum output capacity: 264 V / 120 A.
• Fundamental frequency: 45 Hz ~ 100 Hz.
• Accuracy: class 0.05 or 0.1.
• Minimum current output: As low as 1 mA.
• Auto range: Automatic range switching and load matching.
• Energy measurement: Positive / negative active and reactive energy.
• Harmonic output: 2nd~63st @50Hz / 60Hz, harmonic content and phase are adjustable.
• High order harmonic test: Built in high-order harmonic test schemes.
• Complex waveform test: Built in common waveform scheme, like square-wave, cusp wave, sub-harmonics and odd-harmonic, etc.
• DC and even harmonics test: Equipped with TD3410 half wave rectifier box.
• Daily reckoning error test: Built in standard clock tester.
• Automatic patrol inspection: Support automatic patrol inspection.
• Connection: Equipped with special pressure gauge holder.
• Communication: RS-485, pulse and photoelectric sampling port.
• Multiple-position verification: Optional 6,12,16,24 positions.
• Mobile control unit: LCD touch screen for value output.
• Professional verification software: Support semi-automatic or fully automatic verification of the DUT / UUT, data management and certificate export. The software has the function of single point multiple tests, the test interval can be set, and the error curve can be drawn automatically.
2.2 Optional Features
• Voltage/ Current line power consumption test: The voltage/ current line power consumption test can be completed by selecting the voltage power consumption test module.
• Burden current fast change test: The user can set the duration of ton and toff, and the total time for a single test. The current switches at zero crossing and switches off and on within one nominal frequency period. The repetition time of single test was more than 4 hours.
• AC Voltage dips and interruptions test: AC Voltage dips and interruptions test supporting voltage circuit power supply.
• Standard meter: Optional conventional class 0.5 standard meter or harmonic standard meter.
• Harmonic energy: Complete harmonic energy accuracy test and measurement accuracy test by selecting harmonic standard meter.
3. Verification Items
NO. | Verification Items | Completion （√standard） | Remarks | |
1 | Observation, Mark, Power on inspection | Observation items | ||
2 | Accuracy Test | Initial intrinsic error test | √ | |
3 | Starting current test | √ | ||
4 | Test of no-load | √ | ||
5 | Constant test | √ | ||
6 | Combined error of energy indication value of electronic indicator display | √ | ||
7 | Clock error test powered by power supply | √ | ||
8 | Clock error test using standby power supply | √ | ||
9 | Error consistency test | √ | ||
10 | Variation requirement test | √ | ||
11 | Load current rise and fall | √ | ||
12 | Repeat test | √ | ||
13 | Electromagnetic Test | Voltage dips and interruptions | Optional-Fast change test of load current | |
14 | Resistance to Other Influences | Harmonics in voltage and current -5th harmonic test | √ | |
15 | Harmonics in voltage and current –Square wave test | √ | ||
16 | Harmonics in voltage and current –Cusp wave test | √ | ||
17 | Sub-harmonics in the AC current circuit –Pulse train trigger waveform test | √ | ||
18 | Odd harmonics in current circuit - 90°phase trigger wave test | √ | ||
19 | DC and even harmonics - half-wave rectification waveform test | √ | ||
20 | Voltage variation test | √ | ||
21 | Frequency variation test | √ | ||
22 | Fast change test of load current test | Optional- Fast change test of load current | ||
23 | Self-heating test | √ | ||
24 | High order harmonic test | √ | ||
25 | Electrical Performance Test | Voltage line power consumption test | Optional – Voltage line power consumption test | |
26 | Current line power consumption test | Optional – Current line power consumption test | ||
27 | IOT Electricity Meter | Harmonic power accuracy test | Optional - Harmonic energy | |
28 | Harmonic measurement accuracy test | |||
4. Specifications
4.1 Voltage Output
Range | Resolution | Short-term Stability ( % / min ) | Accuracy ± (ppm of reading + ppm of range) [1] | Distortion Factor ( % ) | ||
Class 0.05 | Class 0.1 | Class 0.05 | Class 0.1 | |||
220 V | 1 mV | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.3 |
Note [1] : (ppm = parts per million) (e.g., 10ppm = 0.001%). | ||||||
• Output range: 0 V ~ 264 V, 6-digits display, load capacity: 15VA/ (phase · position)
• Protective function: Short-circuit protection, Overload protection
4.2 Current Output
Range | Resolution | Short-term Stability ( % / min ) | Accuracy ± (ppm of reading + ppm of range) | Distortion Factor ( % ) | ||
Class 0.05 | Class 0.1 | Class 0.05 | Class 0.1 | |||
10 mA | 0.1 μA | 0.02 | 0.04 | 300 + 200 | 500 + 300 | < 0.5 |
20 mA | 0.1 μA | 0.02 | 0.04 | 300 + 200 | 500 + 300 | < 0.5 |
50 mA | 0.1 μA | 0.02 | 0.04 | 200 + 50 | 300 + 200 | < 0.5 |
100 mA | 1 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
200 mA | 1 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
500 mA | 1 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
1 A | 10 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
2 A | 10 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
5 A | 10 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
10 A | 100 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
20 A | 100 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
50 A | 100 μA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
100 A | 1 mA | 0.01 | 0.02 | 200 + 50 | 300 + 200 | < 0.5 |
• Output range: 1 mA～120 A, 6-digits display, load capacity: 30VA/ (phase · position)
• Protective function: Open-circuit protection, Overload protection
4.3 Frequency / Phase
Accuracy | Class 0.05 | Class 0.1 | |
Frequency | Measuring Range | 45 Hz～100 Hz | 45 Hz～100 Hz |
Minimum Resolution | 0.000 01 Hz | 0.000 01 Hz | |
Accuracy | ± 0.005%*RD | ± 0.005%*RD | |
Phase （I ≥ 50mA） | Measuring Range | 0～360° | 0～360° |
Minimum Resolution | 0.000 1° | 0.000 1° | |
Accuracy | ± 0.012° | ± 0.024° | |
4.4 Power/ Energy
Current Range | Power Factor | Accuracy ± (% of reading) | |
Class 0.05 | Class 0.1 | ||
50 mA ≤ I ≤120 A | 0.5L~1~0.5C | 0.05%*RD | 0.1%*RD |
10 mA ≤ I < 50 mA | 1 | 0.05%*RD | 0.1%*RD |
0.5L~1~0.5C | 0.08%*RD | 0.15%*RD | |
1 mA ≤ I < 10 mA | 1 | 0.08%*RD | 0.15%*RD |
0.5L~1~0.5C | 0.15%*RD | 0.3%*RD | |
• Stability of output power: 0.02% / 2min (Class 0.05)，0.05% / 2min (Class 0.1);
• Measuring range of P/E: Combination of AC voltage and AC current range ;
• Measuring range of power factor: -1.000 00…0.000 00…1.000 00;
• Standard electric energy pulse output: High frequency pulse output port outputs 60KHz at full range, low frequency pulse output port outputs 6Hz at full range;
• Standard electric energy pulse input: frequency ≤ 200 kHz, voltage：0…3.3 V…24 V;
• Electric energy error display: Auto, resolution is 0.0001%.
4.5 Clock
• Daily reckoning error limit: ± 0.05 s/d
5. General Specifications
Power supply | Single phase AC ( 220 ± 22 ) V，( 50 ± 2 ) Hz | ||||
Warm up time | 30min | ||||
Temperature performance | Operating temperature: 5°C~45°C Storage temperature: -10°C~55°C | ||||
Humidity performance | Operating humidity: < 80% @ 30°C，< 70% @ 40°C, < 40% @ 50°C; Storage humidity: (20%~80%) R·H, no condensation. | ||||
Communication interface | RS232, RS485, LAN | ||||
Dimensions of test bench （L*W *table H / total H, mm） | Position number | 6 positions | 12 positions | 16 positions | 24 positions |
Manual wiring | 1350*750*750/1415 | —— | —— | —— | |
Crimp wiring | 1350*750*750/1415 | 1240*750*600/1782 | 1590*750*600/1782 | 2290*750*600/1782 | |
Dimensions of computer desk （L*W*H, mm） | No standard meter | 1000*800*750 | |||
Standard meter | 1500*800*750 | ||||
6. Ordering Information
| ||
Special Customized Function Selection Table | ||
Tick | Option function | Description |
Manual wiring | The default option is Crimping wiring (with meter rack) , Manual wiring is optional. | |
Voltage line power consumption test | Recommend one position | |
Current line power consumption test | At most three position are recommended | |
Load current rise and fall | After this function is selected, all positions support; Support voltage dip and short interruption at the same time. | |
Standard meter | TD3100 standard meter (Class 0.05/0.1) | |
Harmonic energy | TD3100-R standard meter (Class 0.05/ 0.1) | |
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