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KDJK-20 Overhead Line Ground Fault Locator
KDJK-20 Overhead Line Ground Fault Locator

KDJK-20 Overhead Line Ground Fault Locator

Applications:

In 110kV and below power systems, most distribution transformers adopt neutral ungrounded or arc-suppression coil grounded modes. This device is used to accurately locate single-phase grounding faults quickly, avoid manual trial-and-error blackouts, and ensure safe and stable distribution network operation.

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

The KDJK-20 adopts distributed traveling wave technology and ultra-low-frequency signal injection to realize high-precision fault line selection and location. It is unaffected by line structure or neutral grounding mode, with fault location accuracy over 95%.

Features:

  1. Adopts ultra-low-frequency signal injection with strong anti-capacitance interference and high positioning accuracy.
  2. Injects detection signal to locate fault point, reducing detection time and blindness.
  3. Supports load current monitoring during normal line operation.
  4. Single-phase grounding fault positioning error ≤ 1m.
  5. Adopts STM32 (Cortex-M3) core with high integration, strong anti-interference and low power consumption.
  6. Operated via insulation rod on the ground, keeping operators away from high voltage for high safety.
  7. Built-in power supply for convenient and flexible use.
  8. Low power consumption and long continuous working time.

Parameter:

  1. Current detection range: 0.00mA–800A
  2. Load current detection accuracy: ≤ 1.0%
  3. Special-frequency current detection accuracy: ≤ 1.0%
  4. Operating temperature: -10℃~+55℃
  5. Relative humidity: 10%~90%
  6. Wireless communication distance: 800m
  7. Built-in power working duration: ≥ 8h