Sinuo Testing Equipment Co. , Limited
Sinuo Testing Equipment Co., Limited
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120KVA AC Power Source Three Phase Large Capacity Variable Frequency Power Supply
Product Overview:
1.1 Features
● Based on high frequency SPWM hardware adjustment technology, the response is fast and output is stable.
● With high-power MOS / IGBT drive, the operation is reliable and the overload capacity is strong.
● Suitable for various loads such as resistance, inductance, rectification, etc. .
● With protection against abnormal conditions such as overheating, overcurrent and short circuit.
● With parameter memory function and shortcut key operation mode, the operation is easy.
● The power supply voltage is adjustable online, and the output frequency is optional.
● Adopts high-brightness LED display, which is clear and eye-catching, with wide viewing angle, and convenient for production line use.
● With RS232 communication interface, the baud rate can reach 9600.
1.2 Main purpose and scope of application
● Professional laboratory (EMI / EMC / safety regulations)
● Manufacturing plants (quality assurance / life test)
● Testing of products, simulating power grids of various countries
● Product development testing.
Technical Parameters:
| Model no.: | SN9912-120KVA |
| Power capacity | 120KVA (can be customized) |
| Input power supply | Three-phase four-wire 220V±10%,60Hz or 380V±10%,50Hz |
| Output phase voltage range | Single-phase: low range 0.0 ~ 150.0V, high range 0 ~ 300.0V, resolution 0.1V |
| Output line voltage range | Single-phase: low range 0.0 ~ 260.0V, high range 0 ~ 520.0V, resolution 0.1V |
| Output voltage tolerance | 110V and 220V:±1%, others are ±1.5%； |
| Output frequency | 45 ~ 400Hz, resolution 0.1Hz; fixed frequency output: 50Hz, 60Hz, 400Hz |
| Frequency stability | ≤0.01% |
| Voltage stability | ≤1% |
| Distortion | ≤2% (Resistive load) |
| Crest coefficient | 3:1 |
| Source voltage effect | ≤1% |
| Load effect | ≤1% |
| Effectiveness | ≥80% (3kVA and below capacity ≥70%) |
| Frequency display | Four-digit LEDs, resolution 0.1H |
| Voltage display | Four-digit LED, resolution 0.1V |
| Current display | Four-digit LED, resolution 0.001A / 0.1A |
| Power display | Four-digit LED, resolution 0.01W / 0.1kW |
| Power factor display | Three-digit LED, resolution 0.01 |
| Preset function | Output voltage, output frequency, output voltage up and down floating percentage preset |
| Shortcut function | Commonly used voltage and frequency conversion, output voltage floating up and down selection |
| Alarm function | After the protection device is activated, an alarm (sound and light) signal is issued, and the fault code is displayed |
| Overload capacity | 15s, 5s overload protection |
| Overheating protection | Power device temperature is greater than 85 ℃ ± 5 ℃ |
| Enclosure rating | IP2X |
| Chassis structure | Cabinet type (with casters) |
| Working environment | Temperature: -10 ℃ ~ + 40 ℃; relative humidity: 10% ~ 90% (40 ℃) |