High Current Short Circuit Test Machine

The High Current Short Circuit Test Machine has two types of Short-Circuit Control Architectures available:

1. Low-Resistance Mode:
   Resistance ＜ 5 mΩ, Pneumatic Vacuum Arc Suppression short-circuit testing structure.
2. Multi-Resistance Mode:
   Resistance 1 mΩ–100 mΩ or higher, industrial high-current silver-contact short-circuit testing control structure.

Application

This High Current Short Circuit Test Machine is used to simulate the safety performance of cells, battery modules, and battery packs under direct short-circuit or multi-resistance load short-circuit conditions.

Test Procedure

1. The test object is a battery system.
2. During testing, all control systems of the test object must remain in normal operating status.
3. Short-circuit the terminals of the test object for 10 minutes.
4. The short-circuit resistance is set to 1–100 mΩ, as agreed by both parties. Observe for 2 hours.
5. Requirements:
   • The protection device shall function properly.
   • No leakage, casing rupture, fire, or explosion of the battery system.
   • The post-test insulation resistance shall be ≥ 100 Ω/V.

Specifications

Product Name	High Current Short Circuit Test Machine
Control Mode	Remote computer control + video monitoring
Maximum Short-Circuit Current	DC 5000A ~ DC 20000A (Customizable)
Contactor System	Type 1 (Resistance ＜ 5 mΩ): High Current DC Contactor Type 2 (Resistance 1 mΩ ~ 100 mΩ): Industrial high-current silver-plated contactor
Arc Extinguishing Method	Type 1 (≤ 5 mΩ): Pneumatic vacuum arc-extinguishing short-circuit structure (vacuum arc suppression) Type 2 (1 mΩ ~ 100 mΩ): Industrial silver-contact short-circuit structure with resin fire suppression
Contact Response Time	Type 1: ≤ 20 ms Type 2: ≤ 2 ms
Operating Temperature	Ambient / High temperature (Customizable)
Internal Resistance	Type 1: ≤ 5 mΩ (system short-circuit internal resistance) Type 2: 1 mΩ ~ 100 mΩ adjustable or higher (Optional)
Insulation Resistance	≥ 100 MΩ at DC 1500 V (between terminals and side panels)
Withstand Voltage	AC 1500 V for 1 min, leakage current ≤ 5 mA
Resistor Material	Constantan
Temperature Sensitivity	≤ 50 ppm/°C
Temperature Coefficient	α = 5 × 10⁻⁶ (0–100 °C) 1/°C
Resistivity	ρ (20 °C) = 4.4 × 10⁻⁷ Ω·m
Cooling Method	Forced air cooling by a fan
Explosion-Proof Chamber Volume Options(Optional)	1 m³ / 1.5 m³ / 2 m³ / 4 m³ / 6 m³ / 8 m³ / 12 m³ (Customizable)
Explosion-Proof Chamber Steel Plate Thickness(Optional)	5 mm / 8 mm / 10 mm / 12 mm; single-layer or double-layer (Customizable)
Data Acquisition System	Measured Parameters: Current: DC 5000A ~ DC 20000A, Voltage: DC 5V ~ DC 1500V, Temperature Channels, Range, Accuracy & Sampling Rate: Customizable Acquisition Mode: Built-in or external
Test Termination Conditions	Battery temperature, voltage, and short-circuit time can be set individually or in combination as automatic test stop conditions.
Curve Display	Real-time synchronized display of multi-channel battery temperature, voltage, short-circuit current, and short-circuit time curves for accurate safety performance analysis.
Data Interface	Ethernet (LAN port)
Safety Systems	Video monitoring system Explosion-proof protection system Smoke exhaust system Smoke alarm system Explosion-proof lighting system
Safety Protection Design	Over-temperature protection Overload protection Leakage protection device Door access control system Emergency stop button Three-color alarm indicator
Power Supply	AC220V/50Hz, or AC110V/60Hz
Air Supply	Vacuum arc-extinguishing short-circuit system requires compressed air ≥ 0.6 MPa The multi-resistance short-circuit main unit does not require an air supply
Dimensions	Vacuum Arc-Extinguishing Short-Circuit Main Unit: W700 × D1050 × H1650 mm Multi-Resistance High-Current Short-Circuit Main Unit: W2000 × D1550 × H1750 mm (Final size subject to design)
Net Weight	Vacuum arc-extinguishing short-circuit main unit: 400 kg Multi-resistance high-current short-circuit main unit: 1500 kg (Subject to final design)