TD4550
Life Time
12 Months Excellent After Service
Electrical Calibration
Electricity
6 V~456 V
2 mA ~ 110 A
With LCD Display
Non-Customized
Class 0.02, 0.05, 0.1
2nd~21st
optional
45Hz~65Hz
0~54kW
TUNKIA
Package for Exporting
China
Product Description
TD4550 Portable Three-Phase Energy Calibrator

TD4550 is an intelligent and highly integrated test system for calibrating three-phase energy meter and other AC electrical apparatus
. It is built-in 3PH standard source. It can complete intrinsic error test, constant test, standard deviation test, starting current test, test of no-load of electric energy meter.
- Accuracy:class 0.02, 0.05, 0.1
- 3PH ACV output:6 V~456 V
- 3PH ACI output:2 mA ~ 110 A
- Multiple output mode, support three-phase or single adjust
- U-I phase:0°~360°, accuracy 0.01°
- Energy meter test function
- LCD touch screen
- 2nd~21st harmonic output(option)
- Test software(option)

☆ Wide Output |
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☆ Convenient Operation |
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☆ Harmonics Function(Option) | |
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S/N | Function declaration |
Set amplitude of harmonic. | |
Set phase of harmonic(fundamental wave). | |
Choose 2nd~21st harmonics channel output. | |
Oscilloscope function, user can observe voltage and current waves. | |
Display frequency spectrum of harmonic by histogram.(fundament wave is 100%) |
☆ Testing Software(Option) |
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5.1 Three-Phase Voltage / Current Output
Voltage Range | Stability ( %/min ) | Accuracy ±(ppm of reading + ppm of range) [1] | Max Burden (mA) | ||||
Class 0.1 | Class 0.05 | Class 0.02 | Class 0.1 | Class 0.05 | Class 0.02 | ||
57.7 V | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 500 |
100 V | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 300 |
220 V | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 130 |
380 V | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 80 |
Note [1] : (ppm = parts per million) (e.g.,10ppm = 0.001%). |
Current Range | Stability ( %/min ) | Accuracy ±(ppm of reading + ppm of range) [1] | Max Burden (V) | ||||
Class 0.1 | Class 0.05 | Class 0.02 | Class 0.1 | Class 0.05 | Class 0.02 | ||
20 mA | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
50 mA | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
100 mA | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
200 mA | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
500 mA | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
1 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 24 |
2 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 6 |
5 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 6 |
10 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 2 |
20 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 2 |
50 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 0.6 |
100 A | 0.02 | 0.01 | 0.005 | 600+400 | 300+200 | 120+80 | 0.6 |
- Three-phase voltage output:6 V~456 V, Three-phase current output:2 mA~120 A
- Degree of distortion:<0.5%
- Degree of symmetry:voltage <0.2%, current <0.5%, phase <0.5°
- Voltage short circuit, current open-circuit and overload protection
5.2 Frequency / Phase / Harmonic
Frequency | Range:45 Hz~65Hz; Adjustment fineness:0.001 Hz; Accuracy:±0.05 Hz (class 0.1), ±0.02 Hz (class 0.05), ±0.01 Hz(class 0.02) |
Phase | Range:0.000 0°~359.999 9°; Adjustment fineness:0.001°; Accuracy:±0.05° (class 0.1), ±0.02° (class 0.05), ±0.01°(class 0.02) |
Harmonic | 2nd~21st harmonic; Amplitude 0~25% adjustable; Phase 0~359.99°adjustable |
5.3 Power / Energy Output
Type | Current range | Class 0.1 | Class 0.05 | Class 0.02 |
Output power stability ( % / 2min ) | 50 mA≤I≤120 A | 0.05 | 0.02 | 0.01 |
2 mA≤I< 50 mA | 0.05 | 0.03 | 0.02 | |
Active power /energy |cosΦ| ≥0.5 | 50 mA≤I≤120 A | ±0.1%*reading | ±0.05%*reading | ±0.02%*reading |
2 mA≤I< 50 mA | ±0.2%*FS | ±0.1%*FS | ±0.05%*FS | |
Reactive power /energy |sinΦ| ≥0.5 | 50 mA≤I≤120 A | ±0.2%*FS | ±0.1%*FS | ±0.05%*FS |
2 mA≤I< 50 mA | ±0.5%*FS | ±0.2%*FS | ±0.1%*FS | |
Power factor | 50 mA≤I≤120 A | ±0.1% | ±0.05% | ±0.02% |
2 mA≤I< 50 mA | ±0.2% | ±0.1% | ±0.05% | |
Note [2] :FS= voltage range ×current range |
- Power/energy measure range:combination of voltage range and current range
- Power factor measure range:-1.000 00…0.000 00…1.000 00
- Energy pulse output:High frequency full range is 60 kHz, Low frequency full range is 6 Hz
- Energy pulse input:Frequency ≤ 150 kHz, pulse level::0…3.3 V…24 V
- Energy error display:auto,resolution as 0.0001%
Power Supply | AC ( 220 ± 22 ) V,( 50 ± 2 ) Hz |
Temperature Performance | Working temperature:0°C~45°C; Storage temperature:-20°C~70°C |
Humidity Performance | Working humidity:< 80% @ 30°C,< 70% @ 40°C,< 40% @ 50°C Storage humidity:(20%~80%) R·H,non-condensing |
Interface | RS232 |


