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Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection

    Buy cheap Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection from wholesalers
     
    Buy cheap Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection from wholesalers
    • Buy cheap Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection from wholesalers
    • Buy cheap Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection from wholesalers
    • Buy cheap Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection from wholesalers

    Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection

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    Brand Name : XIWUER
    Model Number : CT8-2-50KV-1000pF
    Certification : ISO9001,ISO14001,ISO45001
    Price : Negotiable
    Payment Terms : L/C,T/T
    Supply Ability : 4,000,000 pcs a year
    Delivery Time : 5-7days
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    • Company Profile

    Low Dissipation High Voltage Doorknob Capacitors with High Withstanding Voltage and High Insulation Resistance for Surge Protection


    No.SpecificationDissipationWithstanding voltageInsulation resistanceDimension(mm)
    120kV-2000pF








    ≦0.0040








    1.5Ur 1min








    ≧1.0×105MΩ

    DHLDM
    220kV-10000pF451923125
    320kV-18000pF651519125
    430kV-1000pF801725125
    530kV-2700pF452432124
    630kV-12000pF602028124
    740kV-150pF20334184
    840kV-500pF28334184
    940kV-7500pF802429126
    1040kV-10000pF802226165
    1150kV-1000pF503034124
    1250kV-1000pF322731165
    1350kV-5600pF803135165
    1460kV-1500pF503134125
    1560kV-3000pF653235165
    16100kV-500pF505458125
    17100kV-2000pF513235165
    18Insulator type 100kV-1500pF683640165
    19150kV-820pF6595100125
    20200kV-600pF509094165

    Power System Lightning Arresters (Surge Protection)
    Technical Cornerstone: The Core Role of High-Voltage Doorknob Capacitors in Lightning Arresters
    In power system lightning protection, surge protectors (SPDs) are the first line of defense against lightning surges and switching overvoltages. High-voltage doorknob capacitors, with their unique ceramic dielectric and epoxy resin encapsulation structure, play a key role in high-frequency filtering and energy buffering. When lightning electromagnetic pulses (LEMPs) or switching overvoltages (such as a switch trip) intrude into the system, doorknob capacitors quickly absorb high-frequency surge energy, suppressing voltage spikes. They then work with varistors (MOVs) or gas discharge tubes (GDTs) to achieve multi-stage discharge. Their low-inductance design ensures nanosecond response speed, effectively controlling residual voltage below the equipment's insulation withstand level (e.g., ≤1.5kV), preventing damage to downstream precision equipment due to overvoltage. For example, on the DC side of the inverter in new energy sites (photovoltaic and wind power), the DC SPD needs to withstand high temperature and high humidity at 1500VDC. The low loss factor and high insulation resistance characteristics of the door handle capacitor can significantly improve the reliability of the SPD in harsh environments.






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