MB10 HV Bridge & Burnout System
MB10 HV Bridge & Burnout System
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The MB10 High-Voltage Location Bridge measures and conditions high-resistance cable faults up to 60 kV with ±(0.2%×L+1) m accuracy — factory direct at $10,400.
What Is the MB10 HV Bridge & Burnout System?
The MB10 combines a high-voltage breakdown unit (0–60 kV) and an intelligent bridge for precise fault measurement on long feeders. It performs one-key automatic operation with digital fault distance display. Four-terminal resistance measurement eliminates lead resistance errors.
Why Do Long Feeders Need Bridge Methods?
Faults beyond the reach of standard TDRs — high-resistance faults on long transmission and distribution feeders — require bridge measurement for accurate distance calculation. The MB10's Murray-loop-compatible bridge locates faults up to 50 km with high precision. Its burnout function converts stubborn high-resistance faults into locatable low-resistance arcs.
What Are the MB10's Key Specifications?
The MB10 provides 0–60 kV breakdown output with ~600 mA short-circuit current, plus bridge output of 0–3 kV at ~600 mA. Location range covers 1–50,000 m with ±(0.2%×L+1) m accuracy. It handles double-end GIS and ultra-long cable faults without removing cables from service.
How Does the MB10 Handle Sheath and GIS Faults?
Specialized cable configurations — double-end GIS terminations and cross-bonded systems — require the MB10's combined bridge and burnout capability. Its one-key automatic operation reduces operator error on complex measurements. The digital readout converts the bridge ratio to cable distance directly.
Key Features
- Integrates breakdown and intelligent bridge functions
- One-key automatic operation with digital fault distance display
- Four-terminal resistance measurement avoids lead resistance errors
- Locates double-end GIS and ultra-long cable faults without removal
Technical Specifications
| Breakdown Output | 0 – 60 kV continuous, ~600 mA short-circuit |
| Bridge Output | 0 – 3 kV, ~600 mA |
| Location Range | 1 – 50,000 m |
| Accuracy | ±(0.2% × L) + 1 m |
| Output Power | 1 kVA |
| Power Source | Generator (>1 kW) compatible |
| Certification | CE |
Applicable Scenarios
- High-resistance fault measurement — precise measurement beyond TDR range
- Long feeder fault location — bridge methods for transmission feeders
- Sheath fault localization — locate faults on PILC and XLPE cables
- Burnout conditioning — convert stubborn faults into locatable arcs
- Cable diagnostic specialists — advanced analysis for contractors and labs
Testing Method
- Isolate & ground — confirm cable isolation and safe grounding
- Configure the bridge — connect leads to healthy and faulted phases
- Apply bridge voltage — ramp HV until balance; read the fault ratio
- Calculate distance — convert ratio to cable distance
- Burnout conditioning — switch to burnout mode if resistance remains high
- Re-measure — repeat for the conditioned fault
- Hand off to pinpointing — proceed to acoustic pinpointing
- Discharge & disconnect — auto-discharge, verify zero voltage
Quality & Delivery
- 100% factory tested — calibration and test certificate included
- CE certified — EU compliance
- Export packaging — foam-lined transit case
- Lead time — 15–20 days
- After-sales — 1-year warranty, lifetime maintenance, free training
FAQ
What is an HV location bridge used for?
It measures high-resistance faults on long feeders that standard TDRs cannot detect, using bridge methods.
How accurate is the MB10?
The MB10 achieves ±(0.2%×L)+1 m accuracy across a 1–50,000 m range.
What is burnout conditioning?
A function that applies high current to convert high-resistance faults into locatable low-resistance arcs.
Can the MB10 handle GIS cable faults?
Yes — it locates double-end GIS and cross-bonded system faults without cable removal.
What is the MB10's price?
$10,400 with a 1-year warranty and lifetime maintenance support.
