A30D Multi-Impulse Generator

The A30D Multi-Impulse Generator stresses intermittent and water-tree cable faults with 40 kV multi-pulse sequences — making them locatable by TDR and pinpointer — factory direct at $1,200.

What Is the A30D Multi-Impulse Generator?

The A30D is a portable high-voltage impulse source (0–40 kV, 250–1,200 J) that fires single or programmable multi-impulse sequences into a faulted cable. Repeated discharges force intermittent faults to flash over consistently. It supports the C11 pinpointer during acoustic-magnetic pinpointing.

Why Use Multi-Impulse Instead of Single Shots?

Fault breakdown is probabilistic — a single discharge may not trigger flashover on an intermittent fault. Multi-impulse sequences increase flashover probability dramatically; 10 impulses with a 30% per-shot probability yield roughly 97% certainty. The A30D's adjustable 1–10 s discharge interval lets operators control the sequence.

What Are the A30D's Key Specifications?

The A30D outputs 0–40 kV with selectable energy of 250–1,200 J and adjustable discharge intervals of 1–10 s. It weighs under 18 kg for portability and runs on selectable 220 V/110 V power. Built-in safety includes auto-discharge and high-voltage interlocks.

How Does the A30D Upgrade an Existing Kit?

Teams with a TDR and pinpointer can add thumping capability without replacing their existing tools. The A30D fills the missing impulse step in the fault location workflow. At $1,200, it is the lowest-cost upgrade to extend a basic kit's capability to intermittent and water-tree faults.

Key Features

• Intermittent fault activation — force faults to flash over consistently
• Water-tree fault conditioning — stress aged insulation to reveal hidden faults
• Pinpointing support — clean, repeatable impulse sequences for the pinpointer
• Compact kit upgrade — lightweight impulse source for field service

Technical Specifications

Applicable Scenarios

• Intermittent fault activation — force hidden faults to flash over
• Water-tree fault conditioning — stress aged insulation
• Pinpointing support — impulse source for the acoustic pinpointer
• Compact kit upgrade — add thumping to an existing TDR setup
• Portable field service — lightweight impulse source for contractors

Testing Method

1. Isolate the cable — de-energize and confirm grounding
2. Connect HV output — attach to the faulted phase with proper spacing
3. Set impulse parameters — select voltage, energy, sequence
4. Fire the sequence — discharge into the fault; watch for flashover
5. Verify repeatability — consistent flashover at the same location
6. Pinpoint concurrently — use the C11 during impulse cycles
7. Complete & discharge — auto-discharge, verify zero voltage

Quality & Delivery

• 100% factory tested — 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 multi-impulse generator do?

It fires repeated high-voltage impulses into a cable fault to force intermittent flashovers that pinpointers can detect.

Why are multi-impulses better than single shots?

Fault breakdown is probabilistic — repeated impulses dramatically increase the chance of catching an intermittent fault.

What is the A30D's voltage and energy?

It outputs 0–40 kV with selectable energy from 250 to 1,200 J.

Can I add the A30D to my existing kit?

Yes — it pairs with any standard TDR and acoustic-magnetic pinpointer to complete the fault location workflow.

What is the A30D's price?

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