1. Product Overview MP330A series three-phase DC standard source is Haiyan Jin Han Electronic Technology Co., according to the national electricity industry standards and technical requirements of the State Grid Corporation of power quality standard system analysis study abroad for electrical measurement technology and power quality , combined with the actual needs of the development. This product is suitable for domestic and foreign markets. MP330A series of three-phase alternating current standard source using high-speed sampling, high-precision DDS waveform synthesis, high-speed digital signal processor (DSP), complex programmable logic arrays (CPLD), high-power integrated amplifier, embedded systems and other technology designed ARM . Suitable for multi-function digital meter, transmitters, power meter, is the ideal equipment for electricity power system product verification and calibration. 8-inch color LCD display, full Chinese display, clear and simple interface, easy operation, good visual effect. MP330A series three-phase DC standard source for 0.05 precision. 2. The main features of various types of AC and DC digital meter calibration, AC and DC volume transmitter, and meter. Testable instruments as follows: power transmitter: AC voltage, current transducer, three-phase active power (four-wire and three-wire), reactive power transmitter, transmitter phase, three-phase power factor transducer, frequency transmitter, DC voltage, current transducer, three-phase four-wire and three-phase three-wire active and reactive power transmitter and so on. Meter: single-phase, three-phase four-wire and three-phase three-wire active and reactive energy meter. ? Output AC voltage source, AC current source, the power source is a standard source of all high-precision, high stability, without adding tables to monitor the use of the internal self-calibration software. ? Output DC voltage source, a DC current source are both high precision and high stability of the standard source, use without adding table testing. ? Between the three-phase voltage, between the phase current, the phase between the voltage and current can arbitrary fineness 0.01 ° phase shift. ? Large-screen 800 * 600 TFT color LCD combined with friendly graphical interface display Chinese Windows, USB mouse and keyboard operation is simple, convenient and intuitive, without special training. ? With a Chinese character input system. ? System has a lot of storage space to store the results can be saved in the system. ? Voltage, current, power, phase has a common test points, simple operation, a key place, easy to use and efficient. ? CPLD chip using VLSI IC design their own dedicated circuit to simplify and improve the reliability. ? With multiple alarm and protection, fault self-testing can accurately show the fault type and location, safe and reliable. ? No computer can work alone, the transmitter can also be manually calibrated automatic calibration. 3. Main Specifications 3.1 AC voltage output limit: 380V, 220V, 100V, 57.7V adjustment range: (0-120)% RG RG limit the amount, the same below adjust the fineness: 0.001% RG Accuracy: 0.05% RG Stability: ≤0.005% / 2min Distortion: ≤0.05% (non-capacitive load); Output load: Each phase 20VA / 25VA / 30VA (optional) Load Regulation: 0.02% 3.2 AC current output limit: 20A, 5A, 2A, 1A adjustment range: (0 ~ 120)% RG RG limit the amount, the same below; adjust the fineness: 0.001% RG Accuracy: 0.05% RG stability: ≤0.005% / 2min Distortion: ≤0.05% (non-capacitive load) Output load: Each phase 20VA / 25VA / 30VA (optional) Load Regulation: 0.02% power output of 3.3 Accuracy: 0.05% RG stability: 0.005% RG / 2min 3.4 phase adjustment range: 0 ° ~ 359.999 ° Resolution: 0.001 ° accuracy: 0.02 ° 3.5 power factor adjustment range: -1 ~ 0 ~ + 1 Resolution: 0.00001 Accuracy: 0.05% RG 3.6 frequency adjustment range: 45Hz ~ 60Hz; Resolution: 0.0001Hz Accuracy: 0.0005Hz 3.7 DC output limit: Voltage 600V, 300V, 100V, 10V, 75mV current of 20mA, 10mA, 1mA adjustment range: (0 ~ 120)% RG RG limit the amount, the same below; adjust the fineness: 0.001 % RG Accuracy: 0.05% RG stability: ≤0.005% / 2min ripple content: ≤1% Output Power: ≤10W 3.8 input DC voltage measurements limit: ± 10V, ± 5V measuring range: (0-120)% RG RG limit for the amount, the same below Resolution: 0.000001V Accuracy: 0.01% RG 3.9 measure the amount of DC current input limit: ± 20mA, ± 1mA measuring range: (0 ~ 120)% RG RG limit the amount, the same below-resolved Rate: 0.000001mA Accuracy: 0.01% RG 3.10 Environmental conditions Operating temperature: 0 ℃ ~ 40 ℃ Relative humidity: ≤85% Storage conditions: -30 ℃ ~ 60 ℃ 3.11 Power supply AC220V ± 15% 3.12 Dimensions and weight Dimensions : 3U: 440mm X 132mm X 436mm non-standard 4U: 440mm X 177mm X 370mm Weight: 3U: 15Kg (AC standard source) Non-standard 4U: 19.5Kg (AC and DC standard source)