For many years, stakeless or clamp-on testing has been accepted as an established method of testing earth system resistance, and is now included in the German standard VDE 0100-600:2008 (appendix B3). This method has a number of real user benefits, in particular not having to disconnect the electrode under test, increased user safety and huge savings in time and aggravation. However, many users are failing to enjoy the benefits of stake-less testing, and that’s mainly down to two main issues. Firstly many potential users do not fully understand the testing technique, and avoid it; secondly many people have found some problems when testing, resulting in a number of concerns.

 Automated six-winding transformer ohmmeter

• Automated 8-terminal/6-winding measurement capability
•  Simultaneous winding magnetization
•  Tests operation of on-load tap-changers
•  Built-in auto-demagnetization feature
•  Automatic discharge
•  Power DB software (MTO330)

Model MTO330 shown above.

The MTO 300 series delivers full eight-terminal/six-winding resistance measurement capability. It is designed to save time for the user by testing all normal 6 windings without having to disconnect and reconnect leads during testing.

The MTO3xx series also shares the Megger TTR300 series lead set. Users who test both turns ratio and winding resistance can save time and money since only one lead set is needed to connect to the transformer.

MTO3XX Series Datasheet

Precision AC Power Reference Standard

HCE most recents inputs into the reference meters market borns from well know needs and limitations by our own experience developing and continuously improving metering and monitoring equipment along the years Electric Panels located in substation and diverse industrial applications. Mainly contains the following: Measurement elements, control switches, signalling and secondary protection (over-current, differential, etc.)

1. Maintenance services base in the installation requirements for the well functioning of the grid.
2. Technical researches and investigation for read patterns that generate issues that may affect the installation and aim for avoid to face them lately. Requested under the highest level of standard as could be for the Electric generation and distribution area.

HC3600 not only answer a concrete need, it’s versatility, high accuracy, performance and stability over continuous use in many diverse applications do more than just empower the professional fulfilling the current technician and engineers needs, it opens to the user a much more wide catalog of applications and business opportunities that before simply wasn’t possible to meet the standard. 

HC3600 Details