Transformer substation maintenance and medium voltage in Seville, Spain (coordination)

Transformer substation maintenance in Seville: one point of contact for the whole installation

Companies with high power demand, such as warehouses with heavy machinery, industrial refrigeration, hotels or large stores, usually receive electricity at medium voltage and step it down in their own transformer substation (centro de transformación). That substation has maintenance and periodic inspection obligations, and on the other side of the transformer begins the low-voltage installation that runs the whole business.

We want to make this clear from the start: the medium-voltage work is carried out by a company licensed for high voltage. Pulso Eléctrico coordinates the maintenance, inspections and alterations of the substation with that company, and does all the low-voltage work. That way you have a single point of contact and nobody passes the buck when something fails.

What we do and what the high-voltage company does

Statutory inspections of the transformer substation

Royal Decree 337/2014 approves the Spanish high-voltage regulation, and its ITC-RAT-23 governs the checks and inspections of these installations, with inspections every 3 years carried out by the company licensed for high voltage. If it is a customer-owned substation, meaning it belongs to your company, complying with those inspections and with maintenance is your responsibility as the owner.

We help you keep track: we manage the calendar, coordinate the high-voltage company’s visit, prepare the low-voltage side so the shutdown is as short as possible and file the inspection reports.

The low voltage that hangs off the transformer

All the energy for your business comes out of the transformer, and that is where we work:

• Main low-voltage switchboard, with the main protection and distribution, which we describe on industrial switchboards.
• Lines to the sub-boards and to the machines.
• Capacitor bank to compensate reactive energy, which in these installations is often penalised on the bill. We explain it on power factor correction.
• Thermal imaging of the switchboards with the installation under load, as in our thermal imaging service.
• Preventive and corrective maintenance, within an industrial maintenance plan.

When a transformer substation is needed

• New warehouses and businesses whose power exceeds what the distributor can supply at low voltage at that point.
• Industrial estates that supply plots at medium voltage.
• Large power increases in companies that already have a substation and have outgrown it.

Before planning a new substation or an upgrade, we review real consumption. Sometimes load management, reactive power compensation or solar for businesses covering daytime consumption reduces the power you need.

Companies with a transformer substation in Seville

Customer-owned substations are common in the large warehouses on the industrial estates around Seville, such as PISA in Mairena del Aljarafe, La Isla in Dos Hermanas, Fridex in Alcalá de Guadaíra, or Calonge, Store and Carretera Amarilla in the city itself, and in industries in La Rinconada and Utrera. If your warehouse is still being designed, we build this in from the start as part of the warehouse electrical installation.

How we work

1. Visit to the transformer substation and the low-voltage installation.
2. Document review: ownership, latest inspections and reports.
3. Coordinated proposal: what the company licensed for high voltage does and what we do.
4. Calendar of inspections and shutdowns, adjusted to your activity.
5. Low-voltage work carried out by us and coordination of the medium-voltage work.
6. Filing of inspection reports and a report on each intervention.

Guide prices

More references on our prices page and the rest of our services for businesses under business and industry.