the voltage regulator is in the structure of adjustable compensator, it wind a coil on the loop core, thee brush coincide with the rubbed surface of the coil closely under the spring pressure effect, rotate the revolving shaft to drive the brush stand, and make the brush move along the coil surface to change the contact position of the brush, that means change the turns rate of primary and secondary coil, which can make the output voltage stepless adjusted within the adjustment range. it has the advantage of no waveform distortion, small volume, less weight, high efficiency, simple and reliable operation, work for long period and so on. the specifications as follows: tdgc2-0.5: rated output capacity(kva): 0.5 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 2 tdgc2-1: rated output capacity(kva): 1 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 4 tdgc2-2: rated output capacity(kva): 2 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 8 tdgc2-3: rated output capacity(kva): 3 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 12 tdgc2-5: rated output capacity(kva): 5 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 20 tdgc2-10: rated output capacity(kva): 10 phase: 1 input voltage(v): 220 output voltage(v): 0~250 max output current(a): 40 tsgc2-1. 5: rated output capacity(kva): 1.5 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 2 tsgc2-3: rated output capacity(kva): 3 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 4 tsgc2-6: rated output capacity(kva): 6 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 8 tsgc2-9: rated output capacity(kva): 9 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 12 tsgc2-15: rated output capacity(kva): 15 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 20 tsgc2-20: rated output capacity(kva): 20 phase: 3 input voltage(v): 380 output voltage(v): 0~430 max output current(a): 28 http://www.chnz.com email:ad@chnz.com