... price. 3.CE certificate 4.15 years manufacture experience Relay type voltage regulators (TZ type):1.Model No.TZ-350VA, TZ-500VA, TZ ... TZ-5000VA, TZ-8000VA and TZ-10000VA 2.General:TZ relay singlephase voltage stabilizer adopts double sampling, double stabilizing voltage, and ... : 1,500V/min Delayed time: 3-10mInsulation resistance: 2MΩ relay type stabilizer(AVR),voltager regultor,SVR,TZ-350VA-10KVA