G35 Fault Location Power Supply

The G35 Cable Fault Location Power Supply conditions high-resistance cable faults up to 32 kV so TDRs and pinpointers can detect them — factory direct at $4,200.

What Is the G35 Fault Location Power Supply?

The G35 is a high-voltage power supply (0–32 kV, 1,536 J discharge energy) used to burn down high-resistance cable faults into locatable low-resistance arcs. It pairs with TDRs and pinpointers in the standard fault location workflow. Its switching power supply technology provides stable output for field conditioning.

Why Do High-Resistance Faults Need Conditioning?

High-resistance faults (above ~500 Ω) reflect too little TDR pulse energy to be detected — the pulse passes through as if the fault were absent. Applying 5–15 minutes of HV conditioning breaks the fault down into a conducting arc. Once conditioned, the fault becomes visible to both TDR and acoustic-magnetic pinpointing.

What Are the G35's Key Specifications?

The G35 outputs 0–32 kV with working current up to 10 A and built-in capacitance of 3 µF/35 kV. Discharge energy reaches 1,536 J with a pulse cycle of 4–8 seconds. It features an 800×480 touch LCD, single and continuous pulse modes, and one-key emergency stop with automatic discharge.

How Does the G35 Improve Fault Location Success?

Unconditioned high-resistance faults cause the majority of "clean trace, fault invisible" failures in the field. The G35 converts these hidden faults into measurable conditions, typically within 5–15 minutes per fault. It works with the A10 TDR and C11 pinpointer as a complete conditioning-to-location chain.

Key Features

• Switching power supply technology; pairs with impulse tester and pinpointer
• Three-proof pull-rod chassis, portable and protective
• Auto voltage boost; arbitrary output voltage setting
• One-key emergency stop and automatic discharge for safety

Technical Specifications

Applicable Scenarios

• High-resistance fault conditioning — burn down faults above TDR detection threshold
• Intermittent fault stress testing — apply controlled voltage to force flashover
• Water-tree damaged cable diagnosis — condition aged XLPE/PILC cables
• Pre-location support — create conditions for TDR and pinpointer measurement
• Preventive cable maintenance — stress-test insulation during routine work

Testing Method

1. Isolate & ground — confirm cable isolation and safe grounding
2. Connect HV lead — attach output to the faulted phase
3. Set voltage — start low and ramp toward rated value while monitoring current
4. Condition the fault — apply DC or impulse until resistance drops (5–15 min)
5. Re-test with TDR — confirm the fault is now locatable
6. Discharge safely — activate auto-discharge, verify zero voltage
7. Proceed to pinpointing — hand off to the C11 pinpointer

Quality & Delivery

• 100% factory tested — calibration and test certificate included
• CE certified — EU compliance
• Export packaging — foam-lined transit case
• Lead time — 10–15 days 
• After-sales — 1-year warranty, lifetime maintenance, free training

FAQ

What does a fault location power supply do?

It applies high voltage (up to 32 kV) to burn down high-resistance faults so other instruments can detect them.

Why can't my TDR see the fault without conditioning?

High-resistance faults reflect too little TDR pulse energy. HV conditioning breaks them down into detectable arcs.

How long does fault conditioning take?

Typically 5–15 minutes per fault, depending on fault resistance and cable condition.

Is the G35 safe to operate?

Yes — it features one-key emergency stop, automatic discharge, and grounding interlocks.

What is the G35's price and warranty?

$4,200 with a 1-year warranty and lifetime maintenance support.