2nd unit CONDITION NEW 100% OLD STOCK KBCH12001H15MED S/n 337704J48/250V (See page 10 Ratings for dc/ac Operative range)Vn = 100/120V In = 5AEnglish Types KBCH 120 Differential Protection for Transformers and Generators Featuresl Fully numerical designl Biased differential protectionl Restricted earth fault protectionl Overfluxing protectionl Integral CT ratio and vector groupcompensationl Remote transformer tap controll Measurement of phase, differentialand bias currentsl Record of fault current magnitudesfor the last faultl Relay flag details for the previous5 faultsl 8 programmable optically isolatedinputs to monitor the status ofexternal plantl IEC 870-5 compatiblecommunications via K-Busl Integral disturbance recorderaccessible from a remote PCl Integral event recorder accessiblefrom a remote PCl Comprehensive self-checking andalarmsอ่านเพิ่มเติม