High-Precision Battery Pack Tester 30V10A 8-Channel Feedback Type

Feedback Type High-Precision Battery Pack Testing Equipment 30V10A with 8 channels

Product information:

1 Equipment Introduction

The feedback type high-precision battery pack detection equipment is independently developed by Kexin Electronics, which can test various performance indicators such as lithium-ion battery capacity, state of charge, overcharge and over-discharge. The equipment has the characteristics of high power, high efficiency, high precision and high performance. It adopts electric energy feedback technology, which can greatly reduce the heat emission, electric energy consumption and use cost of the equipment.

2 System Architecture

The equipment is mainly composed of a host computer, a middle computer, a DC/AC module, a DC/DC module, a lower computer, a data acquisition and processing system, etc., and can collect the voltage, current, capacity, energy and other information of each single battery in real time. The system can optionally support battery temperature data collection. The collected data is stored in a specially designed database and provides various data statistics, analysis and report generation functions.

3 System Features

Main functions of the system:

◆ Battery cycle life test

◆ Battery capacity test

◆ DC internal resistance test (optional)

◆ Battery charge/discharge characteristic test

◆ Battery charge retention ability test

◆ Battery charge/discharge efficiency test

◆ Battery depth/constant voltage discharge test

◆ Battery overcharge/overdischarge tolerance test

◆ Battery temperature characteristic test

◆ Battery dynamic and operating condition test (optional)

Main features of the system:

◆ The equipment adopts electric energy feedback technology, which has high energy-saving efficiency and low heat generation in the system, which can greatly reduce the heat emission, power consumption and use cost of the equipment;

◆ Three-phase balance technology (without neutral line) reduces the load on the power grid;

◆ Soft start function reduces the impact on the power grid;

◆ The equipment accuracy is better than 0.05%, the data recording time can reach 1000mS/time, and the stability is high;

◆ Single point independence, independent charging and discharging conditions can be set for each channel;

◆ It has complete input and output, software and hardware protection, reverse connection protection, power failure protection, and poor fixture contact protection;

◆ There is no impact current when the channel starts, and the constant current to constant voltage transitions seamlessly without any current surge;

◆ Multi-layer network integrated management, one computer can centrally control more than 1000 channels, and the large system supports remote monitoring;

◆ The DC internal resistance test process can be defined and set by yourself, providing a high reliability basis for the battery cell grouping (optional);

◆ Channels can be freely connected in parallel as needed to achieve multiple uses of one machine;

◆ When the computer is abnormal, it supports offline operation at an appropriate time (optional);

◆ Modular design concept, plug-in design of the box, easy to maintain;

◆ The output line adopts quick plug-in method for easy installation and maintenance;

◆ The battery end adopts gold-plated ejector clamp to press down to reduce heat and facilitate battery loading and unloading;

◆ The system control circuit adopts a digital circuit with a high-speed floating-point DSP digital signal processor as the core

◆ Synchronous rectification technology is used to improve energy utilization efficiency and reduce hardware size

◆ Rich peripheral resources and high-speed digital computing processing capabilities enable it to meet the needs of data processing and system control

◆ The control variables to be detected are directly sent to the DSP for processing through the I/O port

◆ The hardware design of the system is simple and reliable;

◆ The modular design makes system upgrade and maintenance more convenient

◆ The data is clear and comprehensive, real-time monitoring and upload to the MES system (optional);

 
Technical Parameters:

No.	Brand		SN-30V10A
1	Number of main channels		8 channels
2	Channel action mode		Fully independent
3	Main channel working mode		Charging: constant current charging CC, constant voltage charging CV, constant current constant voltage charging CCCV, constant current constant voltage conversion without impact during charging; Discharging: constant current discharge CD, constant power discharge CP, constant voltage discharge; Standing, stopping.
	Main channel test termination condition		Time, voltage, current, capacity, etc.
4	Main channel voltage	Charging voltage range	0V-30V
		Discharge voltage range	5V-30V (5V is the device port voltage)
		Accuracy	±(0.05%RD+0.05%FS)
		Resolution	0.1mV
	Main channel current	Maximum output current	±10A
		Minimum output current	±150mA
		Accuracy	±(0.05%RD+0.05%FS)
		Resolution	0.1mA
		Current start response time	≤20ms
		Current conversion time	≤40ms
	Time	Resolution	1000mS
	Power	Output Power	Maximum power of single channel continuous operation: 300W
		Stability	±0.1%FS
	Efficiency	Highest charging efficiency	85%
		Maximum discharge efficiency	85%
	Feeder	Harmonic	≤3%
		Power factor	≥0.99
	Auxiliary channel parameter cutoff function		The main channel step can be set to stop or switch when the auxiliary channel signal reaches a certain condition.
5	Communication		The device uses an RJ-45 network interface to ensure the stability and real-time performance of long-distance data collection.
	BMS Communication		CAN/RS485 (Optional)
6	Control Program		Supports power-off data protection, supports manual stop due to power outage, and continues testing from data files.
			Safety protection conditions can be set, including: voltage lower limit, voltage upper limit, current lower limit, current upper limit, voltage and current trends, and single-step protection settings are supported.
			Auxiliary channel protection conditions can be set, and the parameters that can be set include: voltage upper limit, voltage lower limit, temperature upper limit, and temperature lower limit.
			Cycle times	Maximum 9999
			Nested loops	Maximum 10 loops
			Step time range	Support h, min, S formats
			Data recording	Time ≥ 1000mS
7	Data presentation method		Circular list	There are cycle number, charge/discharge capacity, charge/discharge energy, average charge/discharge voltage, etc.
			Process list	There are program number, working mode, process time, capacity, energy, termination voltage, termination current, etc.
			Detailed list	It records serial number, system time, cumulative time, voltage, current, energy, power, etc.
8	Data export method		The data can be exported into EXCEL and chart files, which can provide various data analysis curves such as charge and discharge efficiency, charge and discharge curves, voltage, capacity, current-time characteristics, etc., and the curves can be imported into EXCEL.
9	Curve type		X coordinate: total time, charge and discharge capacity, number of cycles, etc., can be set freely.
			Y coordinate: total voltage, current, capacity, monomer temperature, charge and discharge capacity, monomer voltage, etc., can be set freely.
10	Software protection		Power-off data protection, power-off suspension and connection, overvoltage and over-discharge protection, overcurrent and undercurrent protection, capacity protection, over-temperature protection, abnormal current fluctuation protection, abnormal charging voltage rise speed protection, and abnormal discharge voltage drop speed protection.
	Hardware protection		Battery reverse connection, over-current protection, over-voltage protection.
	Alarm function		The hardware has functions such as emergency cut-off switch, automatic shutdown after power failure, automatic load connection and disconnection, etc.
11	Output line		In four-wire connection mode, the current and voltage lines are separated.
12	Cooling method		Forced air cooling
13	Security level		Meets EN60950, GB4943 requirements.
	Noise		The noise level should be tested according to the IEC62040-3 method, and the noise level should be less than 75dBA. The sound level meter used should meet the requirements of Type I in IEC804, and the accuracy should be better than ±0.5dB.
	Protection level		IP22
14	Maintainability		Modular structure, spare parts and accessories can be used for timely replacement and repair, free of charge during the warranty period.
15	Software upgrade service		The software is upgraded free of charge for life until the hardware becomes incompatible.
16	Failure rate		≤1%