MSM-PS630 25KW 630A DC Power Supply for Arc Melting Systems with HF Arc Starting and Digital Control
The MSM-PS630 power supply is engineered to provide stable and controllable direct current power for arc melting processes, particularly compatible with MTI’s SP-MSM200 arc melting system. This unit addresses the need for precise electrical input to achieve consistent melting results in laboratory and research environments.
Operating on a three-phase 460 VAC input at 50/60 Hz, the MSM-PS630 converts power through a digitally micro-controlled inverter utilizing IGBT modules. This design ensures high efficiency and power factor, optimizing energy use during demanding melting cycles. The power supply supports a wide output voltage range from 0 to 34 volts DC and can deliver currents up to 630 amperes, accommodating various melting requirements.
Key Features
- Digital micro-controlled inverter with IGBT modules for efficient power conversion.
- Output voltage adjustable from 0 to 34 V DC and current range from 20 to 630 A DC.
- Pulse frequency adjustable between 0.1 and 100 Hz for process flexibility.
- High-frequency (HF) arc ignition system for reliable and consistent arc starting.
- Supports 60% duty cycle at 630 A/34 V and continuous operation at 488 A/29 V.
- High efficiency (≥ 95%) and power factor (≥ 0.92) for energy-saving operation.
- Designed for integration with MTI’s SP-MSM200 arc melting system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Voltage / Phase | 460 VAC, 3 Phase, 50/60 Hz |
| Input Current | 30.75 A |
| Maximum Power Output | 24.5 kW |
| Output Voltage Range | 0 – 34 V DC |
| Output Current Range | 20 – 630 A DC |
| Pulse Frequency Range | 0.1 – 100 Hz |
| Duty Cycle | 630 A / 34 V @ 60% duty cycle; 488 A / 29 V @ 100% duty cycle |
| Efficiency (η) | ≥ 0.95 (rated value) |
| Power Factor (λ) | ≥ 0.92 |
| Arc Ignition | High-Frequency (HF) Arc Starting |
Typical Applications
The MSM-PS630 power supply is primarily used in arc melting systems for material synthesis and alloy preparation in research laboratories. It supports precise control of melting parameters, enabling reproducible sample fabrication and metallurgical studies.
Configuration & Operating Notes
This power supply is designed for integration with MTI’s SP-MSM200 arc melting system and requires a compatible three-phase 460 VAC power source. The digital control interface allows for fine adjustment of output parameters and pulse frequency. High-frequency arc ignition facilitates reliable arc initiation, reducing downtime. Users should ensure proper ventilation and follow electrical safety protocols during installation and operation.
