PLC Touch Controller Automatic Temperature Controlled Battery Short Circuit Tester

PLC Automatic Temperature Controlled Battery Short Circuit Tester

1. Product overview:

1.1, The temperature-controlled battery short-circuit tester is designed based on the requirements of various battery short-circuit test standards.

According to standard requirements, the short-circuit device must meet the internal resistance range ≤ 5mΩ, so as to obtain the maximum short-circuit current required by the test; in addition, the circuit design of the short-circuit device must be able to withstand the impact of large currents, so we have selected industrial-grade DC electromagnetic contactors, all-copper terminals and internal copper plates for current conduction.

The wide and thick copper plates can effectively improve the heat dissipation effect, making high-current short-circuit devices safer and effectively reducing test equipment. loss to ensure the accuracy of the test data.

1.2, The short-circuit testing machine adopts PLC automatic control to simulate the external short-circuit of the battery, and meets the standards of UL1642, UN38.3, IEC62133, GB/T18287, GB/T 31241-2014 and so on.

Record battery voltage, current and surface temperature changes, the short-circuit testing machine must have a resistance of 80±20mΩ for the entire circuit (including circuit breaker, wires and connecting devices), and each circuit can withstand a short-circuit current with a peak value of 1000A.

Short-circuit stop mode can be selected: 1. Short-circuit time; 2. Battery surface temperature.

Test requirements:

After the battery is fully charged according to the prescribed test method, it was placed for 30 minutes, then connect the positive and negative terminals with wires, and ensure that the total external resistance is 80mΩ±20mΩ.

During the test, the temperature change of battery is monitored. When one of the following two situations occurs, the test is terminated.

a) The battery temperature drops to 20% lower than the peak value;
b) The short-circuit time reaches 24h.

Test results: The battery should not catch fire or explode, and the maximum temperature should not exceed 150°C.

3. Technical parameters:

1. Control method: PLC touch screen control + PC software computer system + 10 meters wireless remote control action command

2. Voltage: 0-30V

3. Short circuit current: 0-1000A

4. Acquisition of battery surface temperature: 0~1200℃ thermocouple

5. Temperature control explosion-proof box test space: W500xD500xH500mm *8 independent controls (multiple stations can be customized)

6. Temperature range of explosion-proof box: room temperature +15°C~150°C, Uniformity: ±2°C

7. Working voltage: AC 220V 50Hz～60Hz

8. Impulse voltage: AC 1kv/1.2-50μs (peak value) 1min

9. DC response time: ≤5μs

10. Device internal resistance: 10/20/50/80/100/200 mΩ adjustable (load current 1000A) software end automatic switching

11. Action time: pull-in time/release time ≯30ms

12. Action characteristics: cold pull-in voltage ≯66% Us

13. Release voltage in cold state: ≯30% Us, ≮5% Us

14. Exhaust fan: diameter 150mm smoke exhaust with connecting flange

15. Air supply port: there is a test hole with a diameter of 50mm on the left side of the box, which can also be used to measure voltage, etc.

16. Window size: 150 X 150mm, tempered explosion-proof glass with a thickness of 20mm. A movable stainless steel explosion-proof wire mesh is installed in front of the glass to increase safety performance and facilitate extraction and cleaning.

17. Weight: about 500Kg

18. Power supply: AC220V, 50/60Hz

19. Voltage acquisition: 0-30V, 1 channel, resolution 0.01V, accuracy 0.1%

20. Current acquisition: 0-1000A, 1 channel, resolution 1A, accuracy 0.2%

21. Temperature acquisition: 0-1200 degrees, 1 channel, resolution 0.1 degrees, accuracy 2%

22. Data processing: real-time acquisition by the acquisition instrument --- data is saved in the instrument --- automatic generation of documents --- docking and uploading to the mes system

23. Acquisition speed: 100ms/time

24. The software can set multiple conditions or single conditions, single operation or multiple repeated operations, up to 100 cycles.

The interval time can be set by yourself.