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TD3900 High-precision Three-phase Power Source

TD3900 is a high-level, highly stable three-phase power source consisting of a precision three-phase power source, control console, computer, and specialized software. The three-phase power/electric energy output accuracy level of the device is Class 0.02, and the short-term stability of power/electric energy output reaches 30ppm/2min (I≥20mA).

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Model:
TD3900
Brand:
TUNKIA

（This diagram is for reference only; actual delivery may vary.）

1. Summary

TD3900 is a high-level, highly stable three-phase power source consisting of a precision three-phase power source, control console, computer, and specialized software.

The three-phase power/electric energy output accuracy level of the device is Class 0.02, and the short-term stability of power/electric energy output reaches 30ppm/2min (I≥20mA).

TD3900 can be combined with the TH33 series three-phase multi-function standard meter to form a Class 0.005 standard energy meter calibration device, or it can be used alone as a high-accuracy and high-stability standard three-phase power source.

2. Feature

• Three-phase Power Output: maximum voltage up to 576 V, maximum current up to 120 A. The minimum current output is as low as 0.2 mA, which is the basis for the starting test of the electric energy meter under test.

• High-order Harmonic Output/Measurement: It can output 2 to 127 harmonics with adjustable amplitude/phase to complete the standard harmonic calibration of the energy meter, or to analyze the harmonic content and harmonic distortion of the tested three-phase source.

• Harmonic Output/Measurement: Voltage and current support single or multiple simultaneous application of the 2nd to 127th harmonics, with an amplitude of 0 to 40% and a phase of 0.0° to 359.9°adjustable.

• Comprehensive Power Analysis: The device has waveform display, phasor diagram display, power stability test, trend curve drawing, data statistical analysis, etc.

• Mobile Control Console: The value output can be observed or controlled through its large-size high-definition LCD touch screen, which facilitates manual detection by users.

• Special Software: The software can realize automatic calibration or verification of single/three-phase standard energy meters, single/three-phase standard sources, and automatically generate reports.

3. Specifications

3.1 Voltage/Current Output

Range	Resolution	Short-term Stability ( ppm/min )	Measurement Uncertainty（k = 2） ( ppmRD+ppmRG)①		Maximum Load Current（A）	Distortion ( % )
Range	Resolution	Short-term Stability ( ppm/min )	45Hz≤F≤120Hz	120Hz<f≤400hz< pan="">	Maximum Load Current（A）	Distortion ( % )
60 V	10 μV	20	50 + 30	100 + 60	1.2	< 0.2
120 V	100 μV	20	50 + 30	100 + 60	0.6	< 0.2
240 V	100 μV	20	50 + 30	100 + 60	0.3	< 0.2
480 V	100 μV	20	50 + 30	100 + 60	0.25	< 0.2
Note: ① RD is the reading value, RG is the range value, the same below

• Voltage Output Range: 6 V ~ 576 V (a wider range of voltage can be customized);

• Protection Function: voltage short circuit protection, overload protection

3.2 AC Current Output

Range	Resolution	Short-term Stability ( ppm/min )	Measurement Uncertainty（k = 2） ( ppmRD+ppmRG or current value)		Maximum Load Voltage（V）	Distortion ( % )
Range	Resolution	Short-term Stability ( ppm/min )	45Hz≤F≤120Hz	120Hz<f≤400hz< pan="">	Maximum Load Voltage（V）	Distortion ( % )
5 mA	1 nA	50	80 + 0.5 μA	150 + 1 μA	20	<0.5
10 mA	10 nA	25	80 + 0.8 μA	150 + 1.5 μA	20	<0.2
20 mA	10 nA	20	80 + 1 μA	150 + 2 μA	10	<0.2
50 mA	10 nA	20	80 + 40	160 + 80	10	<0.2
100 mA	0.1 μA	20	80 + 40	160 + 80	10	<0.1
200 mA	0.1 μA	20	80 + 40	160 + 80	10	<0.1
500 mA	0.1 μA	15	80 + 40	160 + 80	10	<0.1
1 A	1 μA	15	80 + 40	160 + 80	10	<0.1
2 A	1 μA	15	80 + 40	160 + 80	5	<0.1
5 A	1 μA	15	80 + 40	160 + 80	5	<0.1
10 A	10 μA	15	80 + 40	160 + 80	5	<0.1
20 A	10 μA	15	80 + 40	160 + 80	2.5	<0.1
50 A	10 μA	15	80 + 40	160 + 80	2.5	<0.2
100 A	0.1 mA	15	80 + 40	160 + 80	2.5	<0.2

• Current output range: 0.2 mA～120 A

• Protection functions: current open circuit protection, overload protection

3.3 Frequency/Phase/Harmonic Output

Type	Adjustment Range	Best measurement uncertainty (k=2)
Frequency	45.000 00 Hz～400.000 00 Hz	50 ppm*RD
Phase	0.000 0°～359.999 9°	0.01°
Harmonic Output	Voltage and current support 2nd to 127th @50Hz / 60Hz; amplitude 0~40%, phase 0.0°~359.9° adjustable

3.4 Power/Energy Output

（1）45 Hz≤F≤120 Hz

Type	Voltage Range	Current Range	Short-term Stability ( ppm / 2min )	Annual Measurement Uncertainty （k = 2）
Active Power/Energy \|cos Φ\| ≥0.5 Reactive Power/ Energy \|sin Φ\| ≥0.5	30 V ≤ U ≤ 480 V	20 mA≤I≤120 A	30	0.02%*RD
		10 mA≤I<20 mA	60	0.02%*FS②
		5 mA≤I<10 mA	60	0.03%*FS②
		0.25 mA≤I< 5 mA	120	0.04%*FS②
Power Factor \|cos Φ\| ≥0.5	30 V ≤ U ≤ 480 V	20 mA≤I≤120 A	30	0.02%
		5 mA≤I<20 mA	60	0.03%
		0.25 mA≤I< 5 mA	120	0.04%
Note: ② FS = voltage range value × current range value

• Power/Energy Range：Product of AC voltage range and AC current range

• Power Factor Range：-1.000 000…0.000 000…1.000 000

（2）120 Hz＜F≤400 Hz

Type	Voltage Range	Current Range	Short-term Stability ( ppm / 2min )	Annual Measurement Uncertainty （k = 2）
Active Power/Energy \|cos Φ\| ≥0.5 Reactive Power/ Energy \|sin Φ\| ≥0.5	30 V ≤ U ≤ 480 V	20 mA≤I≤120 A	60	0.04%*RD
		10 mA≤I<20 mA	120	0.04%*FS②
		5 mA≤I<10 mA	120	0.06%*FS②
		0.25 mA≤I< 5 mA	240	0.08%*FS②
Power Factor \|cos Φ\| ≥0.5	30 V ≤ U ≤ 480 V	20 mA≤I≤120 A	60	0.04%
		5 mA≤I<20 mA	120	0.06%
		0.25 mA≤I< 5 mA	240	0.08%
Note: ② FS = voltage range value × current range value

• Power/Energy Range：Product of AC voltage range and AC current range

• Power Factor Range：-1.000 000…0.000 000…1.000 000

4. General Specifications

Power Supply	AC ( 220 ± 22 ) V，( 50 ± 2 ) Hz
Warm-up Time	30 minutes
Temperature Performance	Operating temperature: 18 ℃～28 ℃； Storage temperature: 0 ℃～40 ℃.
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、LAN

TD3900 High-precision Three-phase Power Source

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