PBwel successfully demonstrated the capability of the MTag voltage detector to a major DNO

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PBwel successfully demonstrated the capability of the MTag voltage detector to a major DNO

With a heritage spanning over 80 years, P&B Weir Electrical Limited (PBwel) is recognised globally as a Designer, Manufacturer and Supplier of temporary portable earthing, voltage detectors, Buchholz Relays and electrical safety equipment.

The OHL team of a DNO asked PBwel to provide a high voltage detector and proving unit for some of their rural networks. The MTag was successfully demonstrated and will now be part of the DNO catalogue.

PBwel can provide online or on-site product demonstrations. If you are seeking a solution for a specific need, please feel free to contact our technical sales engineers who will be happy to discuss your requirements and how we can provide you with the right solution.

PBwel has developed extensive experience in designing tailored solutions to meet the needs and requirements of our end users working within the Electrical Supply Industry and Rail sectors in the UK. Our products have been proven and tested around the world. We have worked closely with some of the UK’s biggest household names such as National Grid, Network Rail, and DNOs such as Scottish Power.

This Go NoGo Contact voltage detector is designed for “proving dead”, making sure that nominal voltage is actually absent on a circuit of an HV distribution system, It’s two operating ranges are calibrated according to IEC recommendations between 1 kV and 69 kV:

  • The device will detect any nominal voltage in contact with the part of the installation to be tested on overhead lines and substations.
  • It will not indicate voltage presence when detecting induced voltages in order to allow grounding operations.


Optimised indicators that can be understood clearly in all working conditions:

  • The visual indication is visible in all usual working environments, in sunlight or fog, with a wide-angle of visibility and from the side thanks to an optic ring.
  • The 100 dB sound signal is designed to remain audible even in traffic or strong wind, thanks to its acoustic “horn”.

Direct access to the battery and sealed electronics compartment. When the battery is replaced, this design prevents the following:

  • Accidental interchange of housing or circuitry;
  • Damage to electronic circuits;
  • Humidity ingress into the device when the battery is replaced outdoors.
  • 2 in 1:
    • This dual range detector acts as 2 voltage detectors with 2 separated ranges: lower range and upper range.
    • The presence of nominal voltage within the calibrated ranges is indicated as shown below:

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