System description

The GESINNE system is a smart voltage regulator that stabilises the electrical supply’s voltage for an installation, optimising both for proper load function and decreasing consumption, since it is more efficient. Both optimum supply voltage regulation and balancing between phases through independent control for each one of them lead to huge advantages and great energy savings.

Technical issue. Electric network supply

There are mainly two voltage systems cohabiting in Spain: B2 (220/380 V) and B3 (230/400 V).

There is a single infrastructure that supplies clients with very different needs, which leads to voltage fluctuations along the entire line. Electrical networks are several kilometres long and are linear. They must meet a legal minimum voltage for the last supply point on the network. Surcharges normally occur at the points closest to the power generation sources, and undervoltages with the last users on the line.

By Royal Decree, distributors have a +7% tolerance or margin over the nominal voltage they must supply (220V and 230V, RD 1955/2000).

Electronic equipment are designed to work within this interval, but they will not consume the same or have the same life cycle.

Current unbalances

According to Fortescue’s Theorem, a voltage unbalance at 5% between phases reduces performance in motors and three-phase switchgear and motors by 25%.

Moreover, when the same intensities are not circulating through the three phases in a three-phase system, this unbalance creates overheating, bearing wear and a reduced life cycle for the equipment.

On the other hand, due to the effect of Joule heating, when the current passes through wires, thermal losses directly proportionate to it occur, which leads to greater electricity consumption.

EFFECTIVE RMS VALUE

NOMINAL

MINIMUM

MAXIMUM

B2 SYSTEM

220

204.6

235.4

B3 SYSTEM

230

213.9

246.1

B2 SYSTEM

380

353.4

406.6

B3 SYSTEM

400

372

428

STANDARD ELECTRICAL EQUIPMENT

230

400

207

360

253

440

Savings factors

  • Equipment operates at optimum working voltage, leading to improved efficiency and savings on active energy.

  • Reduced reactive consumption: this is a decrease in apparent power, which has a positive effect on efficiency.

  • Oversized installation: reduced energy consumption in installations where the effective work obtained is greater than necessary.

All the aforementioned improvements imply a decrease in apparent power (and consequently, intensity), either by reducing either active or reactive power, leading to extra savings on active energy thanks to improved efficiency. This is especially caused by decreased heating losses (Joule heating), which are proportionate to apparent power.

Savings by load types

The greatest benefits come from large consumption sets, with lighting and HVAC, but also electronic systems and equipment that are permanently connected.

CONSUMPTION SET

LOAD TYPES

SAVINGS WITH GESINNE

Lighting

Halides, Conventional fluorescent, Incandescent

LED, Low-Consumption Fluorescent

15 %

5 - 9 %

HVAC

Fixed (All-Nothing)

Variable (With Inverter)

10 %

7%

Cafeteria

Ovens

Refrigeration equipment

15 - 15 %

9 %

Spa and Pools

Pumps, purification systems, etc.

12 %

Electronic Systems

Lifts, Servers, Connected equipment, etc.

Variable

With simple installation, GESINNE equipment can reduce your company’s electricity consumption, and therefore the costs on your power bill.