36~765kV Oil-immersed Current Transformers

765kV 550kV 525kV 420kV 362kV 275kV 245kV 170kV 145kV 123kV 72.5kV 36kV oil immersed current transformer,  oil CT
LVB—Series, series, Oil immersed(filled) inverted tank current transformers is applied for metering and protect in 72.5~550kV High-voltage power transmission system.
——The features of the equipment omply with IEC 60044-1
——Modern and compact design，good insulation performance，high mechanical strength
——There are various options on output and accuracy class
——The most modern manufacturing technology on oil-paper-insulation manufacture
——Strict quality control and routine inspection

Main technical parameters
>>  Highest system voltage: 36~765kV
>>  Rated frequency: 50Hz or 60 Hz
>>  Polarity：Negative
>>  Raetd primary current: 5~8000A
>>  Rated secondary current: 1A or 5A
>>  Accuracy class of the windings for measurement: 0.2S, 0.2, 0.5S, 0.5
>>  Accuracy class of the windings for protect: 5P, 10P, 5PR, 10PR, TPY, TPS, TPX, TPZ
>>  No. of the secondary windings: 1~8
>>  Rated output: 5~50VA
>>  Security factor of the instrument (Fs): 5, 10
>>  Accuracy limit coefficient：10，15，20，25，30，35，40
>>  Accuracy limit conditions of the PR class:
      a. Symmetrical multiple of the short time current Kssc =20 or 25
      b. Short circuit time constant of primary windings Tp -100ms
      c. Direct Current Amount of short circuit current 100%（full migration）
      d. Stipulated operating cycle
          C-0.1S-O-0.5S-C-0.1S-O
          or  C-0.1S-O-0.4S-C-0.1S-O
      e. The guaranteed transient error time during reclosing：40ms or 50ms
      f. Remanence coefficient≤0.1