Distribution Transformer Tester, NDB-DOC

The NDB-DOC is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The NDB-DOC is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.

Linemen crews are called on to re-energize transformers regularly, whether it’s after storms or when line faults occurs etc... The reasons for the outages are not always obvious, but the power needs to get back on. When damaged or connected to a faulty circuit, the transformers can rupture with massive amount of energy when attempting to re-energize. In order to make a better decision whether it is safe to re-energize the transformer or not the NDB-DOC is your friendly and safe choice!

Main features:

  • For transformers up to 833kVA single phase or 2500kVA three phase (Polemount or Padmount).
  • Measurement by contact on the transformer primary bushing and Neutral/Ground
  • Used on de-energized transformer.
  • Detects primary transformer short-circuit, open circuit & secondary short circuits.
  • Visual and audible warning.
  • Automatic self-test & Auto shut-off
  • Low battery indicator
  • Operating temperature -25C to +55C.

Get a quote today! Contact us: mkt@ndbtech.com

Sales Representatives

  • Canada
    • ndb Technologies Canada

      Quebec, Canada

      1405 Avenue St-Jean-Baptiste office 111

      Tél.: 1(418)877-7701
      Fax.: 1(418)877-7787


  • USA
    • ndb Technologies USA

      United States

      Tél.: 1(418)877-7701
      Fax.: 1(418)877-7787
      Contact: Brad Macdonald


  • International
    • ndb Technologies International

      Tél.: 1(418) 877-7701
      Fax.: 1(418) 877-7787


Website by SYN Média inc.