Automatic testing of batteries, test software and test systems
When testing battery capacity but especially when testing battery life under certain conditions, it is wise to use automation software. This ensures safe and automatic storage of the measurement data. It also concerns unambiguous testing and the required safety with the necessary programmable stop criteria.
Below, we list the bi-directional DC power supplies in TTMS’ range with their corresponding automation options.
FOR TESTING BATTERY CELLS
The R&S NGM200 series bi-directional DC power supplies/meter from Rohde&Schwarz with one or two channels. Max 20V, max 6A, max 60W per channel. With internal battery charge and discharge function and data logging. An ideal instrument for testing small battery cells.
The IT-M3400 series of bi-directional power supplies come in 200W, 400W and 800W. And this model range starts with a voltage range of 0-60V and a current range of 0-30A.
Unique to the IT-M3400 ultra compact two quadrant power supplies is the comprehensive integrated test and function for battery charging and discharging. During testing, protection limits for current, voltage, capacity and charge time can be set. If these are exceeded, the power supply stops its charge or discharge cycle. In addition, this power supply also has a connection for a temperature sensor so that this can also be included as a condition for charging and discharging.
H&H’s QL series consists of a range of two quadrant and four quadrant DC power supplies in a power range of 200W to 3600W. At a maximum voltage of 10V, you then have a maximum current of 20A. These models can also be fitted with a temperature measurement option for protection. Battery test software is included free of charge with these units.
FOR TESTING BATTERY MODULES
The aforementioned Itech IT-M3400 models also come in voltage ranges of up to 150V, 300V and 600V. In addition, you can easily integrate the power supplies in a master/slave configuration, giving you an extremely flexible setup for a wide range of battery modules up to a power of 4800W and more. The M3400 series is also regenerative when discharging. The aforementioned H&H QL series also has several models up to a 3600W and suitable for voltages up to 100V.
The Itech IT-6000C series comes from 5kW to 18kW and is available in a voltage range of 80V, 300V, 500V, 800V and 1500V. Like the Itech M3400 series, these units have an option to programme a charge or discharge cycle in the unit itself with the necessary stop criteria. These units are regenerative where the energy absorbed when discharging is thus supplied back to the grid.
FOR TESTING BATTERY PACKS
For testing high-power battery packs, Cinergia has the B2C series of bi-directional DC power supplies. Modules include 15kW, 20kW, 30kW, 40kW, 50kW, 60kW, 80kW, 100kW, 108kW, 145kW and 160kW. All have a voltage range of 0-750V (800V optional) and a particularly wide current range. The great advantage of this is that (depending on the model) maximum power is already available from, say, 250V. In addition, these units briefly have the possibility of a peak load of twice the rated power.
The Cinergia modules can be connected in series or parallel up to test systems of 1500V and more like 1.2MW. All modules can also be used separately. The Cinergia units come with comprehensive battery test software.
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