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KDZD Grounding Fault Locator: Pinpoint Multi-Point Grounds in Secondary Circuits
KDZD Grounding Fault Locator: Pinpoint Multi-Point Grounds in Secondary Circuits

KDZD Grounding Fault Locator: Pinpoint Multi-Point Grounds in Secondary Circuits

Applications:

  • Detecting multiple grounding faults in VT/CT secondary neutral circuits
  • Troubleshooting erroneous relay tripping caused by ground loops
  • Verifying single-point grounding integrity during commissioning or maintenance
  • Diagnosing insulation degradation or wiring errors in outdoor terminal boxes
  • Supporting preventive maintenance in substations, power plants, and industrial facilities

  • Response within
    24 hours

  • Free warranty
    12 month

  • On-line training
    Support

Profile:

In power systems, unintended multi-point grounding in secondary circuits poses serious risks—causing false relay operations, measurement errors, and even cascading outages. The KDZD grounding fault locator solves this critical challenge with intelligent signal injection, real-time current analysis, and directional fault indication. Field-tested and engineered for harsh environments, it combines precision measurement, intuitive display, and rugged portability to give protection engineers and maintenance teams full confidence in grounding system integrity.

Features:

Multi-Point Grounding Detection: Identifies illegal ground connections via signal current analysis
Directional Fault Indication: Shows whether the fault is in-phase or out-of-phase
Real-Time Waveform Display: 12-second live waveform visualization of signal current
High-Precision Measurement: 0.1 mA resolution; detects faults as low as 0.5 mA
Smart Signal Injection: Auto-adjusts output (<150 mA, <0.05 W) for system safety
Dual Current Monitoring: Measures main signal +分流 (shunt) currents in other ground paths
Audible & Visual Alarm: Immediate alert when multi-point grounding is detected
Wide Impedance Range: Detects ground resistance from 0 to 1500 Ω
High Noise Immunity: Works reliably with system capacitance up to 1000 µF
Portable & Rugged: Only 2.5 kg, ergonomic design, industrial-grade components

Parameter:

Parameter Specification
Model KDZD Multi-Point Grounding Fault Locator
Signal Current <150 mA
Current Measurement Range 0 – 200 mA
Resolution 0.1 mA
Fault Detection Threshold 0.5 mA
Ground Resistance Range 0 – 1500 Ω
Max. Tolerable Capacitance Single branch ≤100 µF; Total system ≤1000 µF
Waveform Display Duration 12 seconds
Fault Direction Indication In-phase / Out-of-phase
Alarm Type Audible + LED
Operating Temperature –30°C to +50°C
Humidity ≤95% RH (non-condensing)
Dimensions (Case) 450 × 260 × 110 mm
Weight 2.5 kg
Power Safety Signal power < 0.05 W (no risk to DC systems)