Constant current output feedback synthesis of use (hereinafter referred to as the constant current DDDL-H current of generator is an up flow reactor), is my company uses Germany the new module, and my company's existing technology in 2004 in the second half of their own research and development of test equipment, uses the numerical control technology, anti-interference ability is strong, and a generation of up flow is compared, with low power consumption, high capacity of self coupling voltage regulating device, and the hardware of the IGBT tube and high permeability core produced by the converter, through SPWM, inverter, PID control, measurement and software compensation and other new technology, product, power, small volume, weight light, good waveform, output stability, response speed, etc.. Mainly used for thermal relay, motor protector, contactors, for breaker, fuse, air switch, switch cabinet, circuit breaker, protection screen calibration, for a busbar protection and a variety of current transformer ratio test project, suitable temperature Shengheng flow experiment, is widely used in electric power, railway, petrochemical, metallurgy, mine and so on enterprise of scientific research, production and electrical field test.

SPWM hardware adjustment technology, fast reaction speed, stable output;

High power MOS/IGBT driver, reliable operation, strong overload capacity;

Applicable to all kinds of resistance, sensibility, rectifier load etc.;

With voltage limit, voltage limit, overheating, the abnormal conditions such as protection function;

With a fast parameter memory function, key operation, easy to use;

The power frequency current can be adjusted online;

The bright LCD six bit array liquid crystal display, clear and eye-catching, large viewing angle, convenient production line;

With RS232 communication interface, the baud rate is 9600.

2.2 main application and scope of application

Professional laboratory (EMI/EMC/ security);

Manufacturing plant (quality assurance / life test);

Export product testing, simulation of the power grid;

Product type: SDDL-5000H

Input power: single-phase 220 + 15%, 50/60Hz + 5Hz

The opening of output voltage: 5V

The adjustable output current: 0~5000A

The output frequency: frequency: 45 ~ 65Hz;

The frequency stability: less than 0.1%

The current stability: less than 1% (test point: 220V, 50Hz resistance at full load)

The degree of distortion: less than 1.5% (resistive load)

The crest factor: 1.41 + 0.10

The source voltage effect: less than 1%

The load effect: less than 1%

The efficiency: 85%

The frequency of display: six and a half LCD resolution, 0.1Hz true color LCD screen

The voltage display: six and a half LCD resolution, 0.1V true color LCD screen

The current display: Six - LCD, 0.1A/0.1A true color LCD screen resolution

The alarm function: protection device (AO) after the alarm signal, and display fault code;

The working environment: temperature: -10 to 40 DEG C; relative humidity: 10% ~ 90% (40 C)

The overheating protection: power device temperature higher than 85 DEG C + 5

The shell protection grade: IP2X

The chassis structure: Desktop