Voltage Sag Generator
Omniverter Voltage Sag Generator (VSG) accurately produces pre-programmed voltage sags as recommended by IEEE 1668-2017. It is a powerful diagnostic tool to test the voltage sag ride-through performance and compliance of electrical and electronic equipment connected to low-voltage power networks.
The SEMI F47, IEC 61000-4-11, IEC 61000-4-34, and Samsung “Power Vaccine” sag parameters can be pre-configured using the VSG software. During sag testing, the data acquisition system monitors and records the equipment response.
Voltage Sag Test Capabilities
Wye Mode Testing
- Type I, Type II A2, Type III testing according to IEEE 1668-2017.
- The multi-tapped transformers generate the sag on each phase independently.
- Generate user-predefined sags from 30% to 100% of nominal voltage in 2.5% steps.
- Sag duration ¼-cycle to 3 seconds in ¼-cycle steps.
- Create voltage swells up to +125% of the nominal voltage in 2.5% steps.
Delta Mode Testing 3-Phase
- Type II, Type II A1 testing according to IEEE 1668-2017.
- The voltage sagis controlled directly between two phases. Tests are repeated for each phase combination (A-B, B-C, and C-A).
- Generate user predefined sags at 50%, 70% and 80% of nominal voltage as per IEC 61000-4-34.
- Sag duration ¼-cycle to 3 seconds in ¼-cycle steps.
Key Features & Specifications
- Generate 1-phase, 2-phase or 3-phase sags (3-Phase Units) of predetermined depth and duration.
- Solid-state switch design for seamless transitions.
- With the 3-phase unit, the three phases are independently variable, allowing unbalanced sags to be generated.
- 360-degree point-on-wave control.
- Captured waveforms can be saved in several formats, including csv and jpg.
- Advanced data acquisition system software, OmniSag with reporting and data export functionality.
Applications
- Semiconductor & other industries testing low-voltage ride-through (LVRT) capability of process lines or sensitive equipment
- Variable Frequency Drive manufacturers
- Third party testing companies
- Academic & research entities
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