Three-Phase Standard Power Source

To set up and take the load regulation of voltage, current, phase angle, frequency and power factor, also can be used as AC current source, AC voltage source or power source. To set 2-128 times of the amplitude and phase harmonics, and it can be added to the base wave in every harmonic output. Frequency value is adjustable (AB and phase C). Voltage, current output a wide range, big power, high stability, waveform distortion degree is small. Strong with load ability, but it can take capacitive, sensibility, resistance of composite type load or load and load regulation is higher than 0.01%. To apply the 32 bit MPU + DSP + FPGA, powerful flexible. To use hardware PID, fast response, the change of load will not cause output volatility. Industrial frequency waves as high as 50000 points a week of the wave kneading, signal output without filter, precise output waveform, the harmonic output precision, harmonic distortion degree is small. Range switching automatically To use software calibration, simple operation, stable and reliable. To have big screen, 320 x 240 LCD display, Chinese or English interface, operating simply. To have perfect over-current, over-voltage, heat, a shorts-and-opens, overload protection, failure detection automatically. With RS232 interface, and PC connection To take place machine software, it can be output through the PC software program.

This device adopts advance ARM+FPGA high precision D/A conversion and DDS technologies can set up and regulate parameters of voltage current frequency phase etc in a long period of time via analog closed loop feedback and digital PID control 1. Can be used to test errors and variance caused by voltage current waveform or power factor change for a variety of metering instrument such as energy meter voltmeter ammeter wattmeter frequency meter power factor meter phase meter 2. Can generate distorted wave with 2~32 order harmonic harmonic number order amplitude and phase position to base wave can be controlled by programs 3. Operational amplifier work frequency 40HZ~1kHz good linearity dual output protection High fidelity output signal and high shock-proof ability 4. With RS232 and USB(optional) communication interface for PC connection 5. With aluminum alloy carrying box which look nice and with little weight

This device adopts advance ARM+FPGA high precision D/A conversion and DDS technologies can set up and regulate parameters of voltage current frequency phase etc in a long period of time via analog closed loop feedback and digital PID control 1. Can be used to test errors and variance caused by voltage current waveform or power factor change for a variety of metering instrument such as energy meter voltmeter ammeter wattmeter frequency meter power factor meter phase meter 2. Can generate distorted wave with 2~32 order harmonic harmonic number order amplitude and phase position to base wave can be controlled by programs 3. Operational amplifier work frequency 40HZ~1kHz good linearity dual output protection High fidelity output signal and high shock-proof ability 4. With RS232 and USB(optional) communication interface for PC connection 5. With aluminum alloy carrying box which look nice and with little weight

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The instrument GF312D1 is a precision 0.05% AC energy meter testing instrument, mainly used to test three phase energy meter error on site, measure all various of AC parameters and CT ratio & phase error, it is also as three phase reference energy meter in the laboratory. Mainly using test single phase or three phase meter error on site. GF312D1 energy meter calibrator is an ideal test tool for the metrological service of electricity power company.

The GF302D3 portable three phase energy meter test bench consists of an integrated three phase 120A current source and 600V voltage source and a class 0.02 three phase electronic reference standard meter. The energy meter test bench is particularly designed for analysis of complete metering installations and local mains conditions. The meter test bench offers high functionality combined with an excellent menu guided operation via built-in thirty keys and colored 7 touch LCD-display. It can auto & manual test all kinds of energy meter error. Using on site or in the laboratory. It can preset a variety of test schemes for testing energy meter.

This product is portable design,used in field to check watt-hour meter error. Accuracy class:0.05. 6.4inch TFT COLOR LCD measured CT variable ratio 0-600V/1MA-12A Check wiring and calculation electricy of compensation.

The GF302D1 three phase portable energy meter test equipment consists of an integrated three phase current source(up to 500V/120A or 500V/20A) and built-in three-phase electronic reference standard of accuracy class 0.05%. Characteristic features of the GF302D1 are its wide measuring range, high accuracy and high tolerance to unwanted external influences. The equipment offers high functionality combined with an excellent menu guided operation via built-in keyboards and colored 7" touch LCD-display. Voltage & current harmonics output from 2 to 63 times. This model portable meter test equipment can be programmable by PC, automatic generation of energy meter error test report.