110/35/10 kV “Loznica 2” Substation

The 110/35/10 kV “Loznica 2” substation project was carried out for the investor JP “Elektroprivreda Srbije” – “EPS Distribucija” d.o.o. Belgrade. The rated transformer power is 2 × 31.5 MVA, with a 1 × 31.5 MVA transformer installed in the first phase.

Installed equipment:

• Transformer: Comel, type TP1706-31.5, transformation power 31.5/31.5/10.5 MVA, regulation range ±11×1.5%, transformer vector group Ynyn0d5.
• 110 kV switchgear: for outdoor installation with fixed-mounted equipment (conventional outdoor 110 kV switchgear) — 2 transformer bays, 2 line bays, 2 spare bays. Circuit breakers GE Grid Solutions GL312F1 and GL312F3, disconnectors ALSTOM GRID type S2DA/T, current transformers Pfiffner JOF123, voltage transformers Pfiffner EOF123.
• 35 kV switchgear: Schneider Electric F400 Cubicle type AD6 — indoor, metal-clad, air-insulated, with withdrawable vacuum circuit breakers — 2 transformer bays, 6 outgoing bays, 2 metering bays, a bus coupler bay and 1 bus coupler extension.
• 10 kV switchgear: GE Industrial Solutions SecoGear P/V-17.5 — indoor, metal-clad, air-insulated, with withdrawable vacuum circuit breakers — 2 transformer bays, 12 outgoing bays, 2 metering bays, a bus coupler bay and 1 bus coupler extension.