Grt-VDC S2003 220V Wall Mounted Semi F47 Sensitive Loads Voltage Compensator

We are a direct manufacturer. GREAT ENERGY (Shenzhen) has specialized in power electronics and power-quality equipment since 1998. Every GRT-VDC unit is designed, assembled, and 100% tested in our own factory - no middlemen, so you get factory pricing and full technical traceability.

A VDC (also called a Voltage Sag Compensator / Dynamic Voltage Restorer (DVR)) is purpose-built to ride through voltage sags and short interruptions. It uses ultracapacitor energy storage and injects the missing voltage within milliseconds, so sensitive loads never see the dip. Unlike a UPS, it has no batteries to replace, runs at >98% efficiency, stays cool, and is maintenance-free for 10+ years - the right, lower-cost answer to 'voltage flicker / hiccup' problems where a UPS is overkill. For a

Detection in 2 ms, full compensation in <4 ms - far faster than a UPS (5-95 ms). Compensation depth is 100%: even if grid voltage drops to 0 V, the load side stays at rated voltage. Standard ride-through is 1 second, customizable to 1-5 seconds for longer events.

GRT-VDC is CE marked, manufactured under ISO 9001 / 14001 / 45001, and compliant with SEMI F47 for semiconductor-fab voltage-sag immunity. Electrical safety and EMC follow IEC standards. Certificates are available on request and can be attached to your shipment.

Tell us what you have, and we size it for you: If you have a single-line diagram or panel schedule: send it over and we recommend the exact model and capacity. If you have load details (rated voltage, power/kVA, sag frequency & depth, critical equipment): we return a matched solution, usually within 1 business day. If you have little information: our engineers can perform an on-site power-quality survey and deliver a professional report before you order. Typical ranges: single-phase 110/220 V, 3