Electrical grid grounding and ground fault protection for QMM

Client informations

Job Name/Reference

QMM Electrical grid grounding and ground fault protection of the overhead line

Place of execution

Fort-Dauphin – Madagascar

Client Name

QIT Madagascar Minerals (QMM)

Client adress

QMM MADAGASCAR MINERALS, Fort-Dauphin 614 – Madagascar

Management

Tantely R. (Project Manager)
Vonjy R. (Site Supervisor)

Number of personnel worked in the project

Project duration

165 months

Specialized man power

–

Improvement of the ground fault protection of the overhead line distribution grid.

Lost Time Injury (LTI) recorded : 00

Start date (month/year)

February 2014

End date (month/year)

December 2014

Installation of Neutral earthing resistor (NER) for the two main power transformer.

Installation of neutral earthing resistor (NER) for two 6 MVA – 11kV diesel generator.

Installation of core balanced current transformer inside 14 switchgear cubicles.

Installation of a new earthing for all the 96 metallic pole of the overhead line to obtain less than 10 ohms of resistivity.