References

Our projects

Projects carried out for Sonelgaz Distribution, often on live substations, without interrupting supply to customers.

Digital control cabinet with touch-screen HMI, computer and switches

Rehabilitation of a 30 kV / 10 kV primary electrical substation

Sonelgaz Distribution

Refurbishment of the MV equipment, power workshops and remote control of a primary substation, carried out while maintaining continuity of service.

Continuity of serviceMV equipmentPower workshopsRemote control

Two-level Sonelgaz primary substation building

Construction of a new two-level 60 kV / 30 kV / 10 kV primary substation

Sonelgaz Distribution

Construction of a new primary substation with two MV voltage levels, from civil works to electrical equipment.

New substation60 / 30 / 10 kVTwo voltage levels

Cable laying in trenches, ducts, trench formwork and cable trench

Relocation of the cables of 38 MV feeders

Sonelgaz Distribution

Relocation of the cables of 38 MV feeders with continuity of service, and construction of 680 linear metres of cable trench.

38 MV feeders680 m of cable trenchContinuity of service

Upgrade of Sepam 2000 protection relays to Sepam 80

Sonelgaz Distribution

Replacement of Sepam 2000 relays with optimised Sepam 80 relays, in six steps and without modifying the existing wiring: the old relay is disconnected and removed, the Sepam 80 is fitted into the original cut-out, then the original connectors are plugged back in and the relay is tested on site by injection.

Sepam 80Wiring unchanged6 stepsInjection testing

The six steps for replacing a Sepam 2000 with an optimised Sepam 80: initial state, disconnection and removal, preparation, mounting, reconnection, final result with unchanged wiring

Our know-how

Architecture of a digital control system

C264 RTU, time synchronisation master, redundant switches, HMI and remote control gateway, Sepam 80 relays connected via IEC 61850 over fibre optics.