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Zero Sequence Current Transformer LXK-Ø120 Series - China Suppliers & Factory for Low Resistance Systems

LXK-Ø120 series zero sequence current transformers (models 80, 100, 120, 140, 150, 180, 185, 250) are essential solutions for cable grounding protection in low resistance current systems. Designed for rated frequencies of 50Hz or 60Hz and rated voltages of 10kV and below, these transformers meet the rigorous product implementation standards of GB20840.1-2010 and GB20840.2-201As a leading China manufacturer and supplier, we ensure high-quality performance and reliability in our factory, making our products ideal for various industrial applications. Choose our zero sequence current transformers for robust safety and efficiency in your electrical systems

    Model and its meaning

    LXK-120 Zero-Sequence Current Transformer Model Meaning

    Summarize

    This series of zero-sequence current transformers utilizes a split-type design, combined with an epoxy resin casting structure, for excellent mechanical strength and durability. This unique split-type design allows the transformer to be easily split into two halves during installation, facilitating operation in confined or complex spaces. This design not only increases installation flexibility but also significantly simplifies the installation process, saving time and labor costs.

    After installation, the transformer's two halves can be joined together using a clamping clamp to ensure a secure connection and prevent loosening due to vibration or other external factors. This structural design not only improves the safety and reliability of the equipment, but also ensures that the transformer maintains good performance during long-term use.

    Normal service condition

    Installation place: Indoor.
    Ambient temperature: Maximum temperature 40℃; Minimum temperature -5℃; Average daily temperature ≤ 30℃.
    Atmospheric conditions: The atmosphere must be free of significant contamination, dust, fumes, chemical corrosion, and pollutants to ensure stable performance and safety.

    Technical parameter

    Relay model Relay coil connection method Relay scale value Zero-sequence current value(A)
    DD-11/60
    DD-1/60
    Series 15x1 24~45
    30x1
    Parallel connection 15x2 3~5
    30x2
    Series 15x1 3~5
    30x1
    Parallel connection 15x2 3~6
    30x2

    Structure and characteristics

    The epoxy resin casting material properties ensure that this zero-sequence current transformer offers excellent resistance to moisture, dust, and corrosion, making it suitable for use in a wide range of environmental conditions. Whether in industrial sites or power facilities, this transformer provides stable measurement and monitoring capabilities, ensuring the safe operation of power systems.

    In short, this series of zero-sequence current transformers, with their convenient installation and superior performance, has become an indispensable component in modern power systems.

    Frequently Asked Questions

    What is the primary benefit of the split-type design?
    The split-type design allows the transformer to be separated into two halves, making it much easier to install in confined spaces or on existing cables without disconnecting them.
    What materials are used in the construction of the LXK-120?
    It features an epoxy resin casting structure, which provides high mechanical strength and excellent resistance to moisture, dust, and corrosive elements.
    Can this transformer be used outdoors?
    According to the standard technical specifications, this series is designed for indoor installation and should be kept away from heavy pollutants and extreme weather.
    What is the operating temperature range?
    The unit operates effectively between a minimum of -5℃ and a maximum of 40℃, with a daily average temperature not exceeding 30℃.
    How is the connection secured after installation?
    The two halves of the transformer are joined and secured using a specialized clamping clamp to ensure a stable, vibration-resistant connection.
    What are the atmospheric requirements for operation?
    The environment should be free from significant dust, fumes, and chemical pollutants to maintain stable performance and extend the equipment's service life.