Overview
Enviro Test Construct Portable DC Ground Fault Locator DC system ground Fault of the Power system is a Fault that incident and larger jeopardize for Power system, whether it is positive or negative ground Fault, all of those may cause safeguard maloperation or protection refused action, endanger the normal operation of the power system.
Features
- Functionality
- DC ground finder assesses system insulation and detects branch insulation faults
- Signals insulation fault if above ground fault, aiding in fault point location
- Components
- “DC System Analyzer” and “DC Fault Detector”
- Analyzer analyzes insulation, displaying system data on LCD
- Detection Process
- “DC Fault Detector” wirelessly communicates with the “DC System Analyzer”
- High-res DC Clamp detects leakage current in branches
- Insulation Fault Identification
- “DC System Analyzer” identifies insulation faults; “DC Fault Detector” locates the ground point
- Wireless Communication
- Components communicate wirelessly for data exchange
- Measurement Accuracy
- Detector measures leakage current and insulation resistance using Analyzer’s voltage and current data
- Ease of Use
- Streamlines fault detection with clear signals and wireless communication
Technical Specifications
| Relative Humidity | ≤ 90% |
| Power of Signal | ≤ 10 dBm |
| Signal Band | 433 MHz |
| Sensitivity | -106 dBm |
| Transmission Distance | 100 m within visibility, 2 m above ground |
| Applicable DC System Voltage Levels | 48 V, 110 V, 220 V |
| System Voltage Measurement Range | 0 V to 300 V |
| DC to Ground Voltage Range | 0 V to 300 V |
| AC to Ground Voltage Range | 0 V to 280 V |
| Voltage Measurement Resolution | 0.1 V |
| System Grounding Resistance Range | 0 to 600 KΩ |
| Grounding Resistance Resolution | 0.1 KΩ |
| Display Mode | LCD |
| Detection Signal Current Size | 0 mA to 2 mA |
| Detection Signal Voltage Amplitude | 0 V to 50 V |
| Signal Frequency | 0.167 Hz |
| Branch Insulation Resistance Range | 0 KΩ to 600 KΩ (Under Signal Mode – 220 V), 0 KΩ to 300 KΩ (110 V), 0 KΩ to 60 KΩ (48 V) |
| Insulation Resistance Resolution | 0.1 KΩ |
| Time Waveform Display | 12 s |
| Current Measurement Range | ±50 mA |
| Current Measurement Resolution | 0.01 mA |
| Display Mode | LCD |
| Direction Display | Up arrow (same direction), Down arrow (inverse direction) |
| Temperature | 23 ºF to 122 ºF (-5 ºC to +50 ºC) |
| Clamp Size | Ф 1.18 in (30 mm) |
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