Variable sinusoidal power source
European harmonised standards in the form of EN 60335-1 require product testing at rated, minimum, and maximum voltages and frequencies which require a special sinusoidal power supply.
In 2015 we were commissioned by a client to design and build a galvanically-isolated 6kW power supply with an easily adjustable output voltage and frequency. This was used for type testing of the company’s products at various sinusoidal voltages at 50-60Hz. The power supply was later modified for higher power ratings.
The special power supply also turned out to be useful for other clients. Also added were precise output power measurement, voltage stabilisation, and smart HMI panel with remote control and supervision over Ethernet and a smart phone app. Due to excellent output stability the same converter can be used as a voltage stabiliser with flexible signalisation programming options.
The AC sources are based on industrial low voltage components and are available up to the MW power range.
Variable sinusoidal power source ET-SIN
Applications
- Product testing at rated, minimum, and maximum voltages and frequencies
- Precize voltage stabiliser
- Laboratory stabilised voltage, current or power supply
Features
- Precise output measurement
- Voltage stabilisation
- Voltage distortion THDU max 2%
- Smart HMI panel
- Remote control
- Supervision over Ethernet
- Smart phone app
- Flexible signalisation and programming options
Variable Sinusoidal Power Source with adjustable frequency.
| Output voltage range 120 V / 400 V (1 phase) | Rated power | Output voltage range 400 V / 690 V (3 phases) | Rated power |
|---|---|---|---|
| 8 A / 3 A | 1000 VA | 8 A / 4 A | 2500 VA |
| 23 A / 8 A | 2500 VA | 16 A / 8 A | 5000 VA |
| 49 A / 16 A | 5000 VA | 28 A / 14 A | 8000 VA |
| 85 A / 28 A | 8000 VA | 33 A / 16 A | 10 000 VA |
| 100 A / 33 A | 10 000 VA | 40 A / 20 A | 12 500 VA |
| 120 A / 40 A | 12 500 VA | 53 A / 26 A | 15 000 VA |
| 160 A / 53 A | 15 000 VA | 63 A / 32 A | 20 000 VA |
| 190 A / 63 A | 20 000 VA | 76 A / 38 A | 25 000 VA |
| 230 A / 76 A | 25 000 VA | ||
| Other ranges up to 1 MW available on request |
Guarantee time: 2 years