I. Design Features of Temperature-Controlled Battery Short-Circuit Tester

The temperature-controlled battery short-circuit tester is designed in compliance with the requirements of various battery short-circuit test standards. In accordance with standard stipulations, the short-circuit device must meet an internal resistance range of ≤5mΩ to achieve the maximum short-circuit current required for tests. In addition, the circuit design of the short-circuit device must withstand the impact of large currents. For this reason, we adopt industrial-grade DC electromagnetic contactors, all-copper binding posts and internal copper plate current conduction. The wide and thick copper plates effectively improve heat dissipation, making the high-current short-circuit device safer, reducing the wear of test equipment effectively and ensuring the accuracy of test data.

II. Compliant Standards

The test chamber of the temperature-controlled battery short-circuit tester is additionally equipped with a temperature control function, complying with test standards such as IEC62133, QC/T 743 and QC/T 744, and accurately controlling the temperature of batteries in the test chamber, thus fully meeting the test standard requirements.

The temperature-controlled battery short-circuit tester complies with the requirements of standards including GB, IEC, EN, UN38.3, UL 2054, QC/T 744-2006 and QC/T 743-2006.

III. Product Features of Temperature-Controlled Battery Short-Circuit Tester

1. High-Current DC Contactor (2000A)

1.1 Realize remote on and off of DC working voltage up to 660V;

1.2 Rated working current of 2000A DC, equipped with an arc extinguishing system with series magnetic blow longitudinal baffle clay arc chutes;

1.3 Adopt a planar layout integral structure, with the electromagnetic system and main contact arc extinguishing system fixed on the mounting base frame respectively; a clapper-type electromagnetic system with angular rotation and a double-winding pull-in coil are used, and a pressure edge device is installed on the rotating edge;

1.4 Main contacts are made of electrolytic copper, featuring low contact resistance and fast response speed;

1.5 The contactor features reliable and safe operation, long service life, and convenient maintenance.

2. Remote Control

2.1 Long-distance wireless control;

2.2 Reliable and stable operation, with self-locking and interlocking functions, strong anti-interference ability and long service life.

3. Voltmeter

3.1 Measuring voltage: 0-100V, ensuring test accuracy;

3.2 Display accuracy: F.S ±0.2% rdg ±1digit;

3.3 Operation mode: Double integration mode.

4. Ammeter

4.1 Measuring current: Two ranges of 0-2000A DC and 0-1000A DC;

4.2 Display accuracy: F.S ±0.2% rdg ±1digit;

4.3 Operation mode: Double integration mode.

5. Basic Configuration

5.1 The complete set of battery short-circuit tester consists of a high-current short-circuit contactor, a remote controller, a voltmeter, an ammeter and other components;

5.2 Necessary accessories: 2000A test copper cables, etc.

IV. Product Performance Parameters

Working voltage: AC 220V 50Hz-60Hz

Temperature control range: 0～200℃

Temperature control accuracy: 0.1℃

Temperature uniformity: ±1℃

Test space: 1000×1000×1000mm (customizable according to test requirements)

Impact voltage: AC 1kv/1.2-50μs (peak value) for 1min

Maximum measurable battery voltage: 100V

DC response time: ≤5μs

Maximum short-circuit current: 2000A (customizable according to requirements); Maximum allowable passing current: 3000A within 5 seconds

Device internal resistance: ≤5mΩ

Accuracy of voltmeter and ammeter: 0.0001

Operation time: Pull-in time / release time ≤30ms

Operation characteristics: Cold-state pull-in voltage ≤66％Us; Cold-state release voltage ≤30％Us and ≥5％Us

Mechanical service life: 300,000 times

Electrical service life: Resistive load: 50,000 times; Inductive load: 60％Ie of resistive load, 20,000 times

Working environment: Temperature -10℃~100℃, Humidity 10~90% without condensation

Observation window: Double-layer explosion-proof glass design, size 200mm×200mm

Control cabinet: Separated from the test chamber with a remote controller to ensure the safety of operators

Remote control distance: 20m without solid barriers