svc(tnd) series fully automatic voltage regulator consists of contact voltage regulartor, sampling control circuit and servo motor as well. it has excellent features, such as small vaveform distortion, high efficiency, high power factor, free from the effect or frequency variation of supply. it can be widely used in most satuations where the voltage stablization is required. the specifications as follows: svc-500w: output power: 500va packing: 4pcs/ctn svc-1000w: output power: 1000va packing: 4pcs/ctn svc-1500w: output power: 1500va packing: 4pcs/ctn svc-2000w: output power: 2000va packing: 1pcs/ctn svc-3000w: output power: 3000va packing: 1pcs/ctn svc-5000w: output power: 5000va packing: 1pcs/ctn svc-8000w: output power: 8000va packing: 1pcs/ctn svc-10000w: output power: 10000va packing: 1pcs/ctn svc-15000w: output power: 15000va packing: 1pcs/ctn http://www.chnz.com email:ad@chnz.com