Scope of Supply
The scope of supply included the provision of commissioning services for the Control System installed at the 220/132/33 kV Njiro Substation.
General system architecture


System Description
- 2 Operation Station EFACEC HMI 500;
- 2 Operation Station EFACEC UC 500, in redundant operation;
- 1 Gateway EFACEC UC 500E;
- 1 Time Server Mobatime LTS;
- 1 Line Panel 220 kV, with the following equipment: EFACEC BCU 500;
- 1 Reactance Panel 220 kV, with the following equipment: EFACEC BCU 500;
- 2 Transformer Panels 220/132 kV, with the following equipment: EFACEC BCU 500;
- 1 Line Panel 132 kV, with the following equipment: EFACEC BCU 500; EFACEC BCU 500
- 1 Line Panel 132 kV, with the following equipment: EFACEC BCU 500, SEL 421, EFACEC TPU S420, ALSTOM MICOM P545;
- 2 Transformer Panels 132/33 kV, with the following equipment: EFACEC BCU 500, SEL487E, EFACEC TPU S420, EFACEC TPU TC 420;
- 2 Transformer Panels 132/33 kV, with the following equipment: EFACEC BCU 500, SEL487E, EFACEC TPU S420;
- 7 Line Panel 33 kV, with the following equipment: EFACEC TPU S420; EFACEC TPU S420;
- 1 BusCoopler 33 kV, with the following equipment: EFACEC TPU S420;
- 4 Condensers battery panels 33 kV, with the following equipment: EFACEC TPUC420;
- 6 Line Panel 33 kV, with the following equipment: SCHNEIDER SEPAM S82;
- 2 BusCoopler 33 kV, with the following equipment: SCHNEIDER SEPAM S82;
- 2 Arrival Transformer panels 33 kV, with the following equipment: SCHNEIDERSEPAM S82;
- 4 Automatic Voltage Regulators, with the following equipment: MR TAPCON 230;
- 1 Cabinet Count 220 kV e 132 kV, with the following equipment: EDMI Mk10E;
- 2 Cabinet Count 33 kV, with the following equipment: EDMI Mk10E;
- Net equipment IEC 61850, with the following equipment: SIEMENS RuggedcomRSG2100 (2) e RS900 (11);
- 3 Serial port servers over Ethernet MOXA NPort 5150;
The commissioned system includes the following entities: 2884 digital signals, 623 analogic signals, 195 commands.
Description of Activities
The ENGIPROT work team was responsible for the commissioning of the command and control system, in conjunction with teams commissioning NCC for equipment High and Medium Voltage, and for the protections equipment’s.
In addition, ENGIPROT was also responsible for on-the-job training of NCC and TANESCO technicians.
The ENGIPROT still did the lifting of all the elements needed to produce plans and final documents "How to Run” for Command System.
Benefits for the Client
With the inclusion of ENGIPROT in the team of commissioning tests EFACEC ensured a precise realization of commissioning tests, allowing the reducion of the final project completion.






