Descripción
Itech IT8900A/E Series High Power DC Electronic Load
La Serie de Cargas Electrónicas DC de Alta Potencia y Alto Rendimiento IT8900A/E ofrece tres tangos de voltaje 150V/600V/1200V,, con potencia por unidad en el rango de 2kW a 54kW. La serie IT8900A/E, con su amplio rango de voltaje y corriente se controla por una unidad master independiente. Se puede expandir la potencia hasta 384kW mediante master-slave en paralelo. Con un diseño electrónico muy compacto de alta densidad la unidad de 6kW tiene solo 4U de altura. IT8900A/E tiene ocho (serie A) / cuatro (serie E) modos de trabajo, rápida respuesta de bucle y de alta velocidad de flanco de subida y bajada de corriente, así como de modo dinámico, funciones de test OCP, OPP y de test automático de baterías. Incorporan de serie interfaces CAN, LAN, GPIB, RS232 y analógico.
IT8900A/E tienen una amplia gama de funciones de protección que pueden aplicarse a la descarga de baterías, estaciones de carga DC, cargadores on-board (OBC), electrónica de potencia y otros equipos electrónicos de potencia.
IT8900A/E Models
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High power density, small size
IT8900A/E series adopts high power density design, the size is half of the conventional electronic load, and the weight is 1/3 of the conventional electronic load.
Ultra-wide voltage and current input range
IT8900A/E series has ultra-wide voltage and current input range, covering a variety of existing models, meeting the requirements of high current, low voltage or high voltage, low current.
Eight working modes
IT8900A series provides eight kinds of working modes such as CC, CV, CR, CP, CV+CC, CV+CR, CR+CC, CP+CC, which can adapt to the test requirements of various occasions. Among them, the CP mode is often used to UPS battery test, simulate the current change when the battery voltage is decaying. It can also be used to simulate the characteristics of the inputs of DC-DC converters and inverters. The CV+CC mode can be applied to the load simulation battery and test the charging station or the car charger. When the CV is working, the maximum loading current is limited. CR+CC mode is commonly used in the testing of voltage limiting, current limiting characteristics, constant voltage accuracy, and constant current accuracy of on-board chargers, which prevents over-current protection of on-board chargers.
Dynamic and List function
The dynamic mode and list mode of the IT8900A/E series can all be performed in the CC mode. By editing the step width and slope of each step, a variety of complex sequences can be generated, allowing the user to complete various tests with loading waveforms. And under CC mode, IT8900A/E can set the rising and falling speed.
Master-slave paralleling, flexible power configuration
IT8900A/E series have master-slave paralleling and equalized current. IT8900A/E series support cabinet paralleling under different power and same voltage. After paralleling, all functions of the stand-alone can be realized, including working in CV mode, maximum paralleling up to 384kW. The stand-alone can also work independently and the power configuration is more flexible. The paralleling machine adopts analog and digital wiring separately, and the performance of the paralleling machine is more stable.
