The ET 255.01 device together with ET 255 are used to simulate the current and voltage characteristics of photovoltaic modules. For example, it is possible to study how illuminance and temperature affect the operating behaviour of photovoltaic modules and other components of the solar power system.
The GUNT software in ET 255 is used to control, operate and configure the photovoltaic simulator and to record and display the measured values on a laboratory PC. The function of the maximum power point tracking (MPP tracker) of ET 255 can be observed in a characteristic curve diagram. In addition, experiment sequences with defined generation and consumption profiles can be controlled. The GUNT software is network-compatible and enables experiments to be monitored, recorded and analysed at any number of workstations via the customer’s own network.
The photovoltaic simulator is connected to an external PC via network interface. Without a network connection, the DC power supply unit can only be operated in constant current or constant voltage mode. The colour-coded display shows the measured and default values for current, voltage and electrical power.
