It adopts the integrated structure of meter source and has a 0.05-level three-phase wide range multi-functional digital standard table. It can read the electrical parameters of standard table by software.
Using DDS technology, 36000 point waveform synthesis technology, large-scale CPLD and 32-bit embedded system, the signal source output stability is high, the adjustment fineness is small, the distortion degree is small.
7 inch color touch LCD screen with RAM system, with more display information, can display three-phase voltage, current, active power, reactive power, apparent power; It can also display power vector diagram, waveform analysis diagram and other functions.

1) Use the table source integrated structure, built-in 0.05-level three-phase wide range multi-functional digital standard table, can read the electrical parameters of the standard table through software.
2) Adopt DDS technology, 36,000 point waveform synthesis technology, large-scale CPLD and 32-bit embedded system, the signal source output stability is high, the adjustment fineness is small, the distortion is small.
3) 7-inch color touch LCD screen with RAM system, with more display information, can display three-phase voltage, current, active power, reactive power, apparent power; It can also display power vector diagram, waveform analysis diagram and other functions.
4) The use of small and efficient PWM digital power amplifier, with more than 90% efficiency, 300KHz carrier frequency, with small distortion, small heat, high efficiency advantages.
5) With perfect protection function, with voltage short circuit alarm, current open circuit and overload alarm.
6) Built-in high stability constant temperature crystal oscillator, output 500KHz high-precision pulse, can test the energy meter clock, with the meter management software, can test the daily timing error, time switching error. (Optional function)
7) Configure 485 communication interface, which can test various communication tests of multi-functional meters. (Optional function)
8) No computer, according to the built-in procedures to automatically check the energy meter, and can save more than 10,000 meters of data.
9) Configure a USB interface, you can automatically upgrade the program through the U disk; The saved data can also be exported; External mouse, can directly operate the device.

1. Device grade: 0.05
2. Computer online port: RS232 communication port
3. Technical parameters of three-phase source:
1) Output voltage:
3 times 57.7V Y 3 times 100V ∆
3 * 220V Y 3*380V ∆
2) Adjustment range: 0 ~ 120% continuously adjustable
3) Adjustment fineness: better than 0.01%
4) Output current: 25mA, 0.1A, 5A, 25A, 100A
5) Adjustable range 0 ~ 120% continuously adjustable; The adjustment fineness is better than 0.01%
6) Minimum output current: 1mA (accuracy: < 5%)
7) Output power: (voltage loop) 3×50VA; (Current loop) 3×150VA
8) Output voltage, current, power stability: ≤ 0.02% /120S
9) Output voltage, current waveform distortion: ≤ 0.5%
10) Three-phase symmetry: better than 120° soil 0.3°
11) Frequency range: 45Hz ~ 65Hz Adjustment fineness: 0.01Hz
12) Phase shift range: -180.0° ~ 180.0° Adjustment fineness :0.01°
13) Indicating instrument grade: accuracy of voltage and ammeter is 0.01%; Phase meter accuracy is 0.01°; The accuracy of the frequency table is 0.01Hz