BT 20920-40 Triple

The battery tester with regenerative energy recovery in the BT 20000 Triple series from EA Elektro-Automatik are two quadrant devices with 3 channels which can perform the function of a charger as well as that of an electronic load (discharging). In discharging mode the device is regenerative and feeds the energy back into the local grid with an efficiency of up to over 96%. The BT 20000 triple series includes three phase units which, together with the wide input range, allows use with practically all global mains voltages. The DC voltages and currents are determined by the application and the spectrum ranges from 0 - 10 V to 0 - 920 V and from 0 - 40 A up to 0 - 600 A per channel in a single device. The DC supply operates as a flexible output stage with a constant power characteristic (auto-ranging) with a wide voltage and current range. To achieve higher power and current all units are equipped with a Master-Slave-Bus.

This enables up to 3 parallel connected channels to be combined into one channel which can provide up to 30 kW and 1800 A. Such a combination works as a single channel and can use as a battery tester with higher power and current. In this way as an example a user can construct a battery cell tester with 3 channels of 0 - 10 V and 0 - 600 A or one channel with 0 - 10 V and 0 - 1800 A. Furthermore typical battery tester alarm and warning management, various industrial interfaces, software solutions and many more functions are available.

The energy consumed in discharge mode is fed back into the connected grid with an efficiency of up to over 96%. As the energy is not converted to heat as in other battery testers, the energy costs are reduced. In addition, the devices generate less heat requiring less cost intensive air conditioning.