Three Phase Standard Program Controlled Test Power Supply

It is suitable for the power department which needs to check the high-precision standard signal source for the electric measurement, thermal engineering, telecontrol and dispatching of the power system

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Three Phase Standard Program Controlled Test Power Supply

Introduction:

The DT-3050 three-phase programmable precision test power supply is a new generation of high-precision standard power source based on 1.2g MAC DSP, large-scale FPGA, high-speed and high-precision DA and high-fidelity power amplifier.It is applicable to power departments and enterprises that need to measure and inspect high-precision standard signal source for electric measurement, thermal engineering, telecontrol and dispatching of power system, as well as other occasions that need high-precision standard signal source for measurement and inspection.

The DT-3050 can output high-precision voltage and current with adjustable frequency, phase and amplitude of power frequency (40Hz ~ 65Hz). It is a very high-precision adjustable voltage and current standard source.

The DT-3050 can output a very pure sinusoidal voltage current with distortion of no more than 0.1%.The voltage and current output of the DT-3050 has a very high output stability, typically 0.03% RD.Therefore, it is very suitable for the work place requiring high precision inspection and calibration, such as the measurement department for the detection of various voltage, current, power and other electrical parameters meter.

Main Parameters:

Ac output	Fine adjustment	0.05%RG
	Accuracy	Better than ±0.1%RG
	Stability	Better than ±0.03%RG/1min
	Distortion	Greater than 0.1%(non-capacitive load)
	Output power	Rated at 15VA per phase
	Full load regulation	Less than ±0.03%RG
	Full load adjustment time	Less than1mS
	Output range	0V～420V
	Gear setting	0V～140V 、140V～280V 、280V～420V ，Automatic gear switching
	Temperature drift	±15PPM/℃
	Long-term stability	±100PPM/years
Ac current output	Fine adjustment	0.05%RG
	Accuracy	Better than ±0.1%RG
	Stability	Better than ±0.03%RG/1min
	Distortion	Greater than 0.1%(non-capacitive load)
	Output power	Rated at 15VA per phase
	Full load adjustment rate	Less than ±0.03%RG
	Full load adjustment time	Less than 1ms
	Output range	0A、1mA～10A(20A)
	Gear setting	0A～0.2A, 0.2A～1A, 1A～5A, 5A～10A, Automatic gear switching
	Customized	0～1A, 1A～5A, 5A～10A, 10A～20A, Automatic gear switching
	Temperature drift	±15PPM/℃
	Long-term stability	±100PPM/years
Power output	Accuracy of	Better than 0.1%RG
Power output	stability	Better than 0.03%/1min
Phase	Adjusting range	0 ~ 359.99 degrees
	Resolution	0.02 degrees
	Accuracy	±0.05 degrees
Frequency	Adjusting range	40Hz～65Hz
	Resolution	0.005Hz
	Accuracy	±0.005Hz
	Temperature drift	±1PPM/℃
	Long-term stability	±4PPM/years
Power factor	Adjusting range	-1～0～+1
	Resolution	0.05%
	Accuracy	0.1%
Power supply	220 V，AC50Hz ±5%
Harmonic output	DT-3050 three-phase programmable precision test power supply can accurately output 2 ~ 22 harmonics, which can be combined and superimposed at any time. However, the sum of the total harmonic content in the output harmonic should not exceed the limit listed in the table below.
Harmonic output	The carrying capacity of the HT3050 will be reduced by half during harmonic output. For reliable and accurate harmonic output, please ensure that the load does not exceed one half of the rated value.Especially the voltage output, because the voltage output is often used as the power supply of the device under test, the power consumption on it will be larger.
Dimensions	480 * 330 * 680 mm³
Weight	31.6kg

Main Features:

1. The three-phase programmable precision test power supply can output sinusoidal power signals with pure distortion of 0.1%(typical value).

2. Harmonic outputs can be superimposed on fundamental waves.

3. The frequency output is adjustable from 40Hz to 65Hz, with a resolution of 0.005hz and an accuracy of 0.005hz.

4. Phase A and phase B are A frequency reference, while phase C is A separate frequency reference, so phase conversion can be performed separately.

5. The phase is adjustable from 0 to 360 degrees, which can be used to simulate all kinds of power supply and even reverse power supply.

6. Strong carrying capacity, with capacitive, inductive, resistive load or compound type load, and load adjustment rate better than 0.03%RG。

7. Excellent temperature stability. The core device is a military grade product with a temperature coefficient as low as 1PPM, which can ensure the output accuracy in the outdoor temperature environment.

8. Adopt 32 bit MCU+DSP processor, powerful and flexible.

9. The waveform kneading with power frequency up to 50000 points per week ensures the accurate output of the waveform without the need for smooth filtering of the internal signal output, which enables the system to output accurate harmonics and has excellent harmonic distortion index.

10. Easy to connect with PC via an RS232, expand other functions.

11. Perfect overcurrent, overvoltage, overheat, short circuit, open circuit, overload protection.

12. Hardware PID, extremely fast response, load changes will not cause the slightest fluctuation in the output.

13. 13、320*240 LCD, Chinese interface, easy to operate.

14. Open communication protocol to facilitate secondary development (automatic ex-factory verification of RTU/FTU/ electricity management terminal/public transformer metering terminal).

15. Three-phase programmable precision test power supply with pure capacitive load.

16. Combined with PC software can check the electricity meter.