Chroma - Model 17010H -Battery Reliability Test System

The 17010H`s energy recovery circuit architecture offers a marked improvement over traditional switching power supply equipment. It features high measurement accuracy/precision, high-speed current response, zero-crossover time for charge-discharge conversion, as well as multiple current ranges, which help battery cell experiments to enhance capacity test accuracy, improve performance parameter identification, and facilitate realistic dynamic current and power testing. In addition, Chroma 17010H has a 200% pulse current output function, a 300A single-channel continuous current, and provides a 30S pulse test current of 600A, which is beneficial to applications such as power capability and DC internal resistance testing which require short-term and high-rate test currents, while also reducing equipment purchase costs.

High-current life cycle tests highlight the importance of testing the equipment`s energy conversion efficiency. Benefits include not only reduced power demand but also a large decrease in heat production. The control circuit operates at a relatively low temperature, effectively suppressing thermal drift and extending components` life cycles. In this way, the 17010H achieves accurate and stable test performance. Compared with linear circuit products, it offers more efficient energy conversion and higher power density, reduces power distribution requirements for laboratories, saves operating power and air conditioning costs, and improves space utilization.

Taking into account the diversity of battery cell products and experiments, Chroma 17010H features a channel parallel function with a continuous current up to 2400A and a pulse current up to 4800A, greatly improving the applicability of the system.

With regards to safety, each channel is additionally equipped with Level 2 V. Protection, and an independent measurement loop prevents battery overvoltage when a single component fails, enhancing testing safety. In addition, the system`s product maintenance design has been improved: the circuit units are modularized and can be individually assembled and disassembled quickly, enabling convenient maintenance and channel backup.

• High accuracy ± 0.015% of F.S.
• High precision ± 0.005% of F.S.
• Multiple current range 300 A / 150 A / 30 A
• Fast current response <1.5 mS
• Charge and discharge with zero crossover time
• 200% pulse current
• Channel parallel output up to 4800 A
• Efficient recycling of discharged energy (75%)
• High speed data logging (10 mS)
• High single point transient sampling rate (1 mS)
• Level 2 V. Protection
• Integrable data logger and chamber
• Compliant with IEC and GB/T standards

Accurate output capability that meets test standards

Run power capability tests and driving simulations to test compliance of vehicle batteries with international standards. Test parameters for high-rate current and power are based on battery operating conditions (such as BEV, PHEV and HEV) with an output time of 30S, which makes purchasing full-power equipment unnecessary. Chroma 17010H not only provides 200% rated pulse current and power output capability, but can also effectively save equipment costs and space.

Chroma 17010H feeds the electric energy released during discharge back to the AC power grid, which greatly reduces the generation of waste heat, realizes green energy manufacturing with low carbon emissions, reduces power distribution requirements, and saves operating power and air conditioning costs.

• Discharged energy is fed back to the regional power grid with a recovery rate of 75%
• System feedback grid current`s total harmonic distortion <5%

Fast current response < 1.5 mS / 200% pulse current output < 2 mS

The fast current response provides ideal experimental conditions, reduces occurrence of cumulative errors during the fast-changing dynamic test and obtains low-distortion data.

Accuracy is key to comparison of different channel data

Battery products often require multi-channel experiments for comparative analysis to ensure the accuracy of measured differences between different channels. The higher the accuracy, the easier it is to identify differences.

High precision improves data analysis efficiency

The inside of the battery is a complex electrochemical structure, and its characteristics are changed by the current, temperature, SOC, SOH and other experimental conditions. Initial changes are subtle and easily affected by the measurement stability of the equipment. High precision ensures measurement reproducibility and reduces measurement-caused data jumps, which is very helpful for the interpretation of the testing data.