LSP-500VAS Digital Adjustable AC Power Supply
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The LSP-500VAS Digital Adjustable AC Power Supply features ultra-low output voltage distortion (≤1% waveform distortion) and configurable output current protection thresholds. Engineered for compliance testing per IEC 61000-4-11 for voltage dips, short interruptions, and voltage variations, this unit is specifically designed for electrical testing applications in home appliance, motor, compressor, and industrial equipment sectors. It serves as a precision replacement for conventional voltage regulators and inverters, delivering efficient, cost-effective, and accurate testing solutions with laboratory-grade performance.
The compact form factor facilitates benchtop placement or rack-mount integration in test cabinets. Constructed with IGBT-based SPWM (Sinusoidal Pulse Width Modulation) technology, it ensures stable, clean power output essential for sensitive electrical testing protocols.
Technical Specifications
| Model | LSP-500VAS | LSP-1KVAS | LSP-2KVAS |
|---|---|---|---|
| Output Power | 500VA | 1KVA | 2KVA |
| Circuit Topology | IGBT-based SPWM pulse width modulation | ||
| Input Characteristics | |||
| Input Voltage | Single phase, 220V±10% (50Hz/60Hz±5%) | ||
| Output Characteristics | |||
| Output Voltage Phase | Single phase | ||
| Voltage Range | Auto-ranging: 0-150V / 150.1-300V; High-range lock: 0-300V | ||
| Voltage Accuracy | ≤±(0.2% of reading + 0.2% of full scale) | ||
| Output Current (Low Range) | 4.5A | 9A | 18A |
| Output Current (High Range) | 2.25A | 4.5A | 9A |
| Current Accuracy | ≤±(0.3% of reading + 0.3% of full scale) | ||
| Output Frequency Range | 45-70Hz | ||
| Frequency Stability | ≤±0.1% | ||
| Transient Recovery Time | ≤20ms | ||
| Source Voltage/Load Regulation | ≤1% | ||
| Total Harmonic Distortion (THD) | ≤1% (at 220V/110V ±15%, resistive-inductive load) | ||
| Efficiency | ≥70% | ||
| Protection Functions | |||
| Protection Types | Output overvoltage, overload, overcurrent, short circuit with automatic protection and visual alarm indication | ||
| Overload Response | 100-110%: 30 seconds; 110-120%: 10 seconds; >120%: Immediate protection | ||
| Measurement Display | |||
| Output Voltage | 4-digit display (V), 0.1V resolution | ||
| Output Current | 4-digit display (A), 0.01A resolution | ||
| Output Frequency | 3-digit display (Hz), 0.1Hz resolution | ||
| Output Power | 4-digit display (W/kW), 1W resolution | ||
| Operational Features | |||
| Quick Settings | 110V, 220V, 50Hz, 60Hz preset keys; 3 user-defined voltage/frequency profiles | ||
| Current Protection Setting | 0-120% of rated output current | ||
| Line Impedance Simulation | 0-500mΩ programmable line resistance | ||
| Communication Interface | RS232 for remote control and data acquisition | ||
| Cooling Method | Forced air cooling | ||
| Environmental Specifications | |||
| Operating Temperature | 0-40°C | ||
| Relative Humidity | 0-90% (non-condensing) | ||
| Dimensions (W×H×D) | 430×133×380mm | 430×133×440mm | 430×133×440mm |
| Note: Input configuration includes single-phase 110V±10% variants (consult manufacturer for specific model availability). | |||