Three Phase 3500A Primary Injection System

The HMSLQ-3500A/10V DC High-Current Generator is a high-performance DC high-current source designed specifically for power plants, substations, electrical equipment manufacturers, and research laboratories. The unit features a modular design (intelligent control console + current-boosting transformer + electric induction voltage regulator) and delivers a DC current of up to 3500A at 10V, making it suitable for short-term or intermittent operation.

• High-Current DC Output: Up to 3500A/10V, meeting the testing requirements for high-power DC equipment and components.
• Dual Operating Modes: Supports motorized current increase/decrease (self-locking continuous adjustment) and momentary current increase/decrease (step-by-step fine-tuning) for precise control of the output current.
• Intelligent Protection Features:

1. Overcurrent Protection: The overcurrent relay activates, the main contactor opens, and an audible and visual alarm is triggered, followed by automatic return to zero (response time ≤ 7 ms).
2. Zero-Position Protection: Automatically returns to zero when not at zero position, ensuring safe startup.
3. Timer Alarm: Upon reaching the set time, the current automatically decreases to zero, accompanied by audible and visual alerts.
4. Multifunctional Panel: Integrates displays for input voltage, AC/DC current, and timer, as well as status indicator lights for power, closing, zero position, current increase/decrease, and alarms, making operation intuitive.
5. Surge Test Function: Zero-position protection can be disabled to perform rapid current surge tests.
6. High Precision and Low Ripple: The digital meter has a precision of Class 0.5, and the DC output ripple coefficient is <0.3%, ensuring accurate test data.
7. Split-Type Design: The control console and current booster are separate, facilitating on-site layout and heat dissipation.

• Electric Voltage Regulator

Input Voltage Three-phase 380V

Rated Capacity 40kVA

Input Current 60.7A

Output Voltage 0–430V (three-phase)

Output Current 53.7A

Cooling Method Air-cooled

• Intelligent Control Console

Input Voltage Three-phase 380V

Input Current 60.7A 

Rated Capacity 40kVA

Output Current Indication DC 0–3.5 kA

Input Voltage Indication 0–450 V

Meter Accuracy Class 0.5 (Digital)

Overcurrent Setting Range DC 0–3.5 kA (Bounce Release Time 7 ms)

Time Measurement Range 0–999 seconds/minutes/hours (switchable)

Cooling Method Forced-air cooling

• Step-up Transformer

Input Voltage 0–400 V (three-phase)

Input Current 0–57.7 A

Rated Capacity 40 kVA

Output Voltage DC 1–10 V (open-contact)

Output Current DC 250–3500 A (continuously adjustable)

Rectification Method Full-wave rectification (ZP 3500A/200V, six groups)

Shunt FLQ 3500A/75mV (Accuracy Class 1.0)

Ripple Coefficient ≤0.3% (standard sine wave)

Operating Time ≤5 minutes at 3500A

Cooling Method Air-cooled