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Protection Purpose Precision Current Transformers






































                Application                                     General Features
                •  Accuracy power monitoring                    •  Meeting International Standard IEC 61869-2
                •  High-end digital protection relay            •  High precision & stability
                •  Power transducer                             •  High saturation induction
                •  High-end UPS periphery relay                 •  Excellent linearity
                •  High-end industrial power sensor             •  Excellent thermal properties
                •  Inverter controlling                         •  High potential voltage of 2.5kV-4.0kV/min
                •  Precision motor protection relay             •  RoHS compliant

                •  EV Charging Plug & Cable




                Ⅰ. Standard Model : Accuracy Class 3.0



                Model & Specification
                                                                          f=50Hz, Rb=1 n, PF=1.0, unit : percent / minute
                                                                                Rnv       Pnv
                             Current    DCR        Im        Im        Im                           Phase
                  Model No                                                     Rb=O,      Rb=O,
                             Ratio     ±6%       Rb=1Q    Rb=20Q    Rb=500Q                       Shift at 1V
                                                                               1-20A      -20A
                    TC1V
                    TC1L     1000:1     74Ω       76A       60A        9A       1.5%      190'      106'
                   TC148V    2000:1     98Ω       225A      190A      38A       0.7%       75'       29'
                   TC148L
                   TC149V    1500:1     46Ω       370A      260A      31A       1.0%       50'       24'
                   TC149L
                   TC150V    2000:1     40Ω       870A      590A      69A       2.0%       85'       39'
                   TC150L


                Definition of Terms
                Im: Max ratedcurrent Rnv: Nominal variation of ratio error at the mentioned pimary current range Pnv: Nominal variation of phase
                error at the mentioned primary current range Rb: Burden resistance PF: Power factor DCR: DC Resistance of secondary winding
                Remark: The data of maximum current, ratio and phase error on 60Hz testing would be around 20% better than those of above 50Hz

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