Portable Cable Fault Test Systems (Extended /380V-500KV)
Portable Cable Fault Test Systems (Extended /380V-500KV)
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The Portable Extended Test System (380V–500kV) locates transmission-level cable faults up to 500 kV with bridge and 60 kV conditioning — factory direct at $25,400.
What Is the Portable Extended Test System?
This complete kit extends fault location capability to 500 kV networks with TDR pre-location (0–200 km), a 60 kV HV supply, impulse generator, and acoustic-magnetic pinpointer. An optional HV bridge handles extreme-resistance faults on transmission lines. It is built for EPC contractors and grid operators.
Why Do Transmission Networks Need an Extended System?
High-voltage lines present faults beyond the reach of standard distribution kits — longer distances, higher resistance, and specialized configurations. The Extended system's 200 km TDR range and 60 kV conditioning cover transmission spans. Its bridge module measures faults on long feeders that resist standard testing.
What Are the System's Key Specifications?
The system covers 380V–500kV with a TDR ranging 0–200 km (±0.5 m) and HV supply up to 60 kV. Burn-through output reaches 60 kV/600 mA. Total system weight is approximately 150 kg across five cases. Lead time is 10–25 days.
How Does the Extended System Serve EPC Projects?
Contractors commissioning new transmission lines use the Extended system for on-site fault location during construction. Its bridge module handles double-end GIS and cross-bonded configurations without cable removal. The complete documentation package supports grid operator compliance requirements.
Key Features
- Precise location of main insulation and outer sheath faults up to 500 kV
- Locates double-end GIS faults without removing cables from warehouse
- Locates ultra-long transmission cable faults without dismantling cross-bonding
- Optional HV bridge for extreme-resistance faults
Technical Specifications
| System Voltage | 380 V – 500 kV |
| TDR Module | 0–200 km, ±0.5 m |
| HV Supply | Up to 60 kV |
| Burn-Through | 60 kV / 600 mA |
| Bridge Module | Optional, for extreme resistance |
| Pinpointing | Acoustic + magnetic, high-depth |
| System Weight | ~150 kg (5 cases) |
| Lead Time | 10–25 days |
Applicable Scenarios
- Transmission line fault location — faults on HV/EHV lines up to 500 kV
- EPC contractor projects — fault location for newly commissioned lines
- Grid operator specialist teams — high-voltage fault response
- Long feeder diagnostics — faults beyond standard distribution range
- Cross-country lines — locate faults on long spans
Testing Method
- Line isolation — full grid-side isolation per utility procedure
- TDR pre-location — measure fault distance on the long span
- Bridge measurement — apply the HV bridge for ultra-high resistance
- Conditioning — burn down the fault with the 60 kV supply
- Pinpointing — impulse + acoustic pinpoint on the surface
- Document — full test report for grid records and compliance
Quality & Delivery
- System integration test — end-to-end testing before shipment
- CE-certified components — EU compliance
- Export packing — foam-lined cases, systems crated
- Lead time — 10–25 days FOB
- After-sales — 1-year warranty, lifetime maintenance, free commissioning support
FAQ
What voltage networks does the Extended system cover?
It covers 380V–500kV transmission and distribution networks.
What range does the Extended TDR provide?
The TDR ranges 0–200 km with ±0.5 m accuracy.
Why is a bridge module needed?
Bridge measurement locates extreme-resistance faults on long feeders that resist standard TDR testing.
Who uses the Extended system?
Grid operators, EPC contractors, and specialist transmission maintenance teams.
What is the Extended system's price?
$25,400 with a 1-year warranty and lifetime maintenance support.
