• For more details please open our catalogue: Cylindrical capacitors.pdf

    Application and construction

    Capacitors are intended for the improvement of Power Factor in low voltage power networks. Used MKP technology consists of metallized PP film with extremely low loss factor. The dielectric system is self-healing and has no liquid impregnant.

    Capacitor elements enclosed in cylindrical aluminium cases are filled with a vegetable oil based gel which is non-toxic, biodegradable and environmentally friendly.

    The capacitors have overpressure protection to disconnect it from the supply in the event of internal failure and at the end of its operational life.

    The construction described above and the use of high quality materials ensure reliability and longevity.

    Installation instructions

    Capacitors can be installed in any position. Mounting is by M12,M16 stud on the bottom and this can also be used for the earth connection - max tightening torque 12 Nm. 

    Function of disconnector


     

    Technical data

     

    Rated voltage: UN 250 -690 V
    Frequency: fN 50/60 Hz
    Standards:  

    ISO9001:2008

    Max overvoltage: Umax

    UN + 10 % (up to 8 hours daily)
    UN + 15 % (up to 30 minutes daily)
    UN + 20 % (up to 5 minutes)
    UN + 30 % (up to 1 minute)

    Overcurrent (according to above standards): IS 1,5 - 2,0 * IN
    Capacitance tolerance:   -5 / +5 %
    Test voltage, terminal/terminal: UTT 2,15 * UN, AC, 10 s 
    Test voltage, terminal / case: UTC  3000 V AC, 10 s
    Inrush current:   Max 200 x IN
    Dielectric losses: tan δ cca 0,2 W/kvar
         
    Degree of protection:   IP 20, on request IP 54
    Ambient temperature category:   -25 °C / D - maximum is 50 °C 
    - highest mean over any period of 24 h is 40 °C
    - highest mean over any period of 1 year is 30 °C
    Cooling:   natural or forced
    Statistical life expectancy:   100 000 - 150 000 hours (depended on voltage, temper.)
    Max above sea level:   2 000 m above sea level
    Mounting position:   any
    Mounting:   Stud M12,16 at the bottom
    Case:   Aluminium
    Dielectric:   MKP - metallized PP film
    Impregnant:   Dry type
    Discharge resistors:   1 minute or 75 V, 3 minutes

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