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JSY-04 Dielectric Loss Tester Power Industry Solution

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January 20, 2026
Category Connection: Transformer Testing Equipment
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Tags:
#transformer testing machine #current transformer test set #transformer test instruments
Brief: Join a quick walkthrough that focuses on what matters to users and operators. This video demonstrates the JSY-04 Automatic Anti-Interference Dielectric Loss Tester in action, showing how it performs reliable on-site dielectric loss measurements in high-interference environments like substations. You'll see its advanced frequency conversion technology, user-friendly touch interface, and automated testing processes for transformers, capacitors, and other power equipment.
Related Product Features:
  • Utilizes frequency conversion and Fourier transform digital filtering for high-precision capacitance and dielectric loss measurements.
  • Features strong anti-interference capability, filtering out 50Hz power frequency interference for reliable data in electromagnetic environments.
  • Equipped with a full-touch LCD screen and intuitive graphic interface for easy operation without extensive training.
  • Includes internal data storage with calendar chip and large memory, plus USB export for PC management.
  • Integrated design with built-in standard capacitor and high-voltage power supply for convenient field testing.
  • Supports CVT testing, including self-excitation tests and automatic measurement of C1, C2 capacitance and dielectric loss.
  • Offers AC withstand voltage testing for PT, CT secondary windings and 400V low-voltage systems.
  • Provides safety features like grounding protection, overcurrent protection, and electric shock protection.
FAQs:
  • What is the main advantage of the JSY-04 tester in substation environments?
    The JSY-04 uses frequency conversion technology to automatically filter out 50Hz power frequency interference, allowing it to measure reliable data even in high electromagnetic interference environments like substations.
  • Can this tester be used for oil dielectric loss measurement?
    Yes, the instrument has high measurement accuracy suitable for oil dielectric loss measurement when equipped with a standard oil cup and special test lines.
  • What safety features does the JSY-04 dielectric loss tester include?
    It includes multiple safety protections: grounding protection prevents operation without proper grounding, overcurrent protection safeguards against short circuits, and electric shock protection immediately cuts off high voltage if the operator is accidentally shocked.
  • How does the instrument handle data storage and management?
    It features internal memory with a calendar chip for saving test results, includes a thermal printer for reports, and allows data export via USB flash drive for management on any PC using specialized software.
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