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HV Cable Fault Locating System
(Fully Self Contained)

HDW's new M series thumpers, the SG15 OR SG25 are self contained, full-featured fault locating systems. Features include our ARM filter and the T 3050, our newest large screen Automatic Radar. Also featured is
a Switchable Capacitor, this allows 100% energy output, 1150 Joules, (maximum thump noise) at both 50% and 100% of the rated output voltage! Impulse Generator (Thumper)

Modes of Operation:

  • Arc Reflection Method (ARM)
  • Surge Pulse (optional)
  • Direct Surge (thump)
  • DC-HV Proof Test and Burn


    • Energy Output :

  • 1150 Joules @ 7.5 and 15 kV (SG15)
  • 1150 Jouldes @ 12.5 and 25 kV (SG25)
  • DC Hipot: 0-15/0-25 kV continuous
  • Burn Current:
         14mA max @ 15/25 kV
         28mA max @ 7.5/12.5 kV


    • Key Features :

  • Single Shot thump in ARM
  • Voltmeter
  • Current Meter (optional)
  • 5-7 sec. thump cycle @ max. output
  • Automatic Cable Grounding
  • Built in ARM Filter
  • Single Point Safety Ground


    • Power Options:

  • 12V Deep Cycle Marine Battery, rechargeable ('Smart' recharger included) and 120 V/60Hz AC


    • Mounting and connecting Cables:

  • Mounted on heavy duty dolly*
  • Enclosure: NEMA 12 compliant 50 feet GRND / 50 feet HV hook up Cable w / Vice Grips (elbow adapters for hot stick use available)


    • Mounting and connecting Cables:

  • Mounted on heavy duty dolly*
  • Enclosure: NEMA 12 compliant 50 feet GRND / 50 feet HV hook up Cable w / Vice Grips (elbow adapters for hot stick use available)


    • Weight:

  • 190-230 lbs.
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    Cable Master Inc. 160 Pony Dr. #6A, Newmarket, ON, L3Y 7B6
    905-715-7303 | Toll Free: 877-715-7303 | Fax: 905-715-7305 info@cablemasterinc.com