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JDZJ-3、6、10.jpg

China JDZJ-3, 6, and 10 Type Voltage Transformers - Reliable Suppliers and Factory for Power Systems

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Voltage transformers are essential components in power systems, significantly enhancing the safety, reliability, and cost-effectiveness of operations. We offer the JDZJ-3, 6, and 10 type voltage transformers, specifically designed for AC power systems with a rated frequency of 50Hz or 60Hz, and a voltage rating between 3 to 10 kV. These high-quality transformers are ideal for electric energy metering, voltage monitoring, and protective relay applications. Trustworthy and efficient, these products comply with the execution standards GB20840.1-2010 and GB20840.2-201As leading suppliers from China, our factory ensures that you receive unparalleled performance and quality.

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    Preview Data Contact us
    Outline and Installation Dimension Drawing

    Model and its Meaning

    JDZJ-3, JDZJ-6, JDZJ-10 Voltage Transformer Model Meaning

    Summarize & Advantages

    Voltage transformers (VTs) provide critical benefits in power systems, ensuring operational excellence through:

    ✓
    Safety: Reduces high voltages to safe levels for monitoring and personnel protection.
    ✓
    Precise Measurement: Ensures high-precision monitoring and control accuracy.
    ✓
    Isolation Function: Prevents high voltage damage via electrical isolation.
    ✓
    Strong Adaptability: Suitable for both AC and DC power system applications.
    ✓
    System Stability: Enhances reliability by monitoring and controlling voltage levels.
    ✓
    Automation Ready: Seamlessly integrates with remote monitoring and data collection systems.
    ✓
    Cost Efficiency: Reduces the need for expensive high-voltage measurement equipment.
    ✓
    Multifunctionality: Capable of frequency and phase measurement integration.

    Normal Service Condition

    • 📍 Installation Site: Indoor environments.
    • 🌡️ Ambient Temperature: Max 40℃ | Min -5℃ | Daily average ≤ 30℃.
    • ☁️ Atmospheric Conditions: No severe atmospheric pollution.

    Technical Parameter

    Product Model Rated Voltage Ratio (KV) Accuracy Level Rated Output (VA) Extreme Output (VA) Rated Insulation Level (KV)
    JDZJ-3 3/√3 / 0.1√3 / 0.1/3 0.2 15 300 3.6/25/40
    0.5 30
    JDZJ-6 6/√3 / 0.1√3 / 0.1/3 0.2 20 400 7.2/32/60
    0.5 50
    JDZJ-10 10/√3 / 0.1√3 / 0.1/3 0.2 25 500 12/42/75
    0.5 50

    Structure and Characteristics

    This series of voltage transformers features a semi-enclosed epoxy cast design. The core is constructed from high-quality silicon steel sheets stacked precisely. Within the cast body, cylindrical concentric primary and secondary coils are housed. For secure installation, the bottom clamp is equipped with a grounding bolt and four dedicated installation holes.

    Frequently Asked Questions

    What is the primary application of the JDZJ series voltage transformers?
    The JDZJ series is designed for indoor power systems to reduce high voltages to safe, measurable levels for monitoring, control, and protection of electrical equipment.
    What materials are used in the construction of these transformers?
    These transformers use high-quality silicon steel sheets for the core and are encapsulated in a semi-enclosed epoxy cast body for durability and insulation.
    Can these transformers be installed outdoors?
    No, the JDZJ-3, 6, and 10 models are specifically designed for indoor installation sites with controlled atmospheric conditions.
    What are the accuracy levels available for the JDZJ-10 model?
    The JDZJ-10 model supports accuracy levels of 0.2 and 0.5, depending on the rated output requirements (25VA or 50VA).
    What is the temperature range for normal operation?
    The transformers operate safely between a minimum of -5℃ and a maximum of 40℃, with a daily average temperature not exceeding 30℃.
    How is the JDZJ series grounded during installation?
    Each unit features a grounding bolt located on the bottom clamp, alongside four installation holes for secure mounting.