Capacitors of voltage dividers, capacitive voltage dividers

 Capacitors of voltage dividers, capacitive voltage dividers

 


Capacitors of voltage dividers is designed for:
* for voltage dividers in AC electrical plants;
** for voltage dividers in different apparatus at AC high-voltage electricity transmission lines, also for air circuit-breaker;
*** for voltage dividers for SF6 switches.





         Capacitors of voltage dividers 

 


          In capacitors designation the first number after type is rated voltage in kV,
                                                         second – rated capacitance in nanofarad.


          DMR – new designation of earlier produced capacitors DMRU.
          DMKP and DMKF – capacitors in reinforced polymer or porcelain insulator.

 

 

 

 

 

 

          Capacitive voltage dividers is designed to complete capacitive voltage transformers of voltage classes 110, 220, 330, 500, 750 kV and to secure high-frequency communication from 24 up 1000 kHz along AC electricity transmission lines of frequency 50 Hz.

          Intermediate voltage for DOCI of all voltage classes - 12,064 kV.
          Capacitive voltage dividers are completed with capacitors CMAOI -110√/3 (166√/3,188√/3) and CMAI-110√3 (166√/3, 188/3).
          Dividers for voltage 500 and 750 kV are equipped with electrostatic screen.
Symbol structure part type of dividers decryption follows is:
    
          Symbol structure part type of dividers decryption follows is:

                      DOCI-110 UHL1
                      D - voltage dividers;
                        O - function - power takeoff;
                           C - communications;
                              I - metering circuit;
                                110 - voltage type, kV;
                                       UHL - climatic modification;
                                               1 - placement category.
                      Capacitive voltage dividers

            1) - Depending on the performance of the tires, there may be differences in the overall and mounting dimensions of the dividers. The required dimensions are specified when ordering.

          DOCI - voltage divider for power take-off, for communication, for measuring devices.

          DЕО - voltage divider capacitive for optical transformers.