---
title: "SPENS Novi Sad: 10/0.4 kV 1000 kVA substation installation"
description: "ADD Projekt d.o.o. installed a 10/0.4 kV, 1000 kVA transformer substation for SPENS in Novi Sad, Serbia. The stages of the work and which buildings need one."
lang: en
canonical: https://addprojekt.rs/en/references/spens-substation-1000-kva/
alternates:
  sr: https://addprojekt.rs/reference/spens-trafostanica-1000-kva.md
  en: https://addprojekt.rs/en/references/spens-substation-1000-kva.md
  de: https://addprojekt.rs/de/referenzen/spens-trafostation-1000-kva.md
---

# Installing a 10/0.4 kV, 1000 kVA substation for SPENS in Novi Sad

ADD Projekt d.o.o., an electrical engineering company from Novi Sad, installed a 10 kV/0.4 kV, 1000 kVA transformer substation for SPENS Sports Centre Vojvodina in Novi Sad, Serbia. The company holds contractor licences for low- and medium-voltage power installations, which this work requires.

## Project at a glance

- **Client:** SPENS Sports Centre Vojvodina
- **Location:** Novi Sad, Serbia
- **Building type:** Sports and business centre
- **ADD Projekt's role:** Installation contractor
- **Installations:** 10 kV/0.4 kV, 1000 kVA transformer substation

## A 1000 kVA substation for the SPENS sports and business centre

SPENS is a sports and business centre in Novi Sad, run by the public enterprise JP Sportski centar Vojvodina. Buildings like this have a high and variable power demand, so they are supplied through their own transformer substation. ADD Projekt installed a 10 kV/0.4 kV substation with a rated power of 1000 kVA there.

The substation takes 10 kV from the medium-voltage distribution network and steps it down to 0.4 kV, the 400/230 V that the building's installations and equipment run on. Because this is medium-voltage work, Serbian rules allow only engineers with the matching contractor licence to carry it out.

## Stages of a 10/0.4 kV substation installation

On every site the construction design (PZI) and the conditions on the ground set the exact scope. The general sequence looks like this:

- Reviewing the design and preparing the room or foundation for the equipment
- Delivering and placing the transformer and the medium- and low-voltage switchgear
- Laying and connecting the medium- and low-voltage cables
- Earthing and equipotential bonding
- Testing and commissioning in line with Serbian regulations
- Documentation for technical acceptance, including the as-built design (PIO)

## When a building needs its own substation

A dedicated 10/0.4 kV substation is needed when a building uses more power than the low-voltage network can supply. Sports halls, shopping centres, hotels, hospitals, industrial plants and warehouses are typical cases. The question comes up when a new building is planned and also when an existing one needs a higher connected load.

## What we did on this project

- [Electrical installation works, low and medium voltage](https://addprojekt.rs/en/electrical-installation-works/)

## Frequently asked questions

### What is a 10/0.4 kV substation and what does it do?

A 10/0.4 kV substation steps the 10 kV medium voltage of the distribution network down to 0.4 kV low voltage, i.e. 400/230 V. It feeds the distribution boards, lighting, machinery and other equipment in the building. Buildings with a high electricity demand have one.

### What does 1000 kVA mean on a transformer?

It is the transformer's rated apparent power, the maximum load it is designed to carry continuously. The active power in kW that the building can actually use depends on the power factor of its loads, so the required rating is worked out by calculation in the design.

### Does ADD Projekt install 10/0.4 kV substations?

ADD Projekt installs 10/0.4 kV substations as a contractor licensed for medium-voltage installations. The 1000 kVA substation for SPENS in Novi Sad is one of these projects. We prepare quotes based on the design and the conditions on site.

## Request a quote

- **Phone:** 066 5453 212 (+381665453212)
- **Email:** office@addprojekt.rs
- **Address:** Heroja Pinkija 2, 21000 Novi Sad, Srbija
- **Company reg. no.:** 21464457
- **Tax ID (PIB):** 111335277