Specifications
ESDONI
>
LIGHT FLOW STABILIZERS-DIMMERS
> Operation graphic
> Description
ESDONI equipment is a line-head flux stabiliser-reducer that resolves problems caused by
grid instability by stabilising line supply voltage during peak periods. They reduce the vol-
tage during off-peak periods and thus achieve additional savings.
Lighting systems that incorporate discharge lamps associated with ballast of the high-pres-
sure sodium vapour (HPSV) type or mercury vapour (MV) are highly susceptible to supply
voltage variations.
Voltages exceeding 105% of the rated value for which they were designed will significantly
reduce lamp and equipment life span by increasing electric power consumption.
The graph in Figure 1 shows the great influence of power supply voltage on consumption
and on the lifespan of a 400W HPSV lamp. As can be seen, a 7% increase produces a
lifespan reduction of 50% and a 16% excess consumption.
In addition, the need to rationalise energy consumption leads to the reduction of public stre-
et lighting levels during hours when there are fewer users.
The Energy Efficiency regulation regarding exterior lighting installations indicates to us that
"Installations of over 5 kw must be endowed with a light level adjustment system, allowing
a reduction in the light flow up to 50%"
> High-performance voltage stabiliser-dimmer system
Stabilisers-dimmers are items of equipment designed to generate an energy saving. Hence,
the first condition to be met by a system with these characteristics is that it should be extre-
mely efficient. To this end, own consumption must be minimal, raising the performance
levels to the maximum. The high-performance flow stabilisers-dimmers over 99% at full
load (tests at an official laboratory accredited by ENAC test no. IE-ITE2010100003). These
values can be attained thanks to the use of power relays in the switching.
> Features
a) Limiting the current peak when the lamps are switched on.
b) Stabilising the lighting line rated voltage.
c) Reduce the lighting line voltage during the hours of fewest users.
> 4 5 <
Fig.1: Lamp life span and consumption in function of mains voltage.
(Auxiliary equipment - series ballast - 400 W high-pressure sodium vapour)
Tensión de Flujo Nominal
Tensión de Flujo Arranque
Tensión de Flujo
Reducido
Ciclo de Encendido Diario
Cambio a Flujo Reducido
12 min.
Horas
Voltios
230
220
210
200
190
180
170
PM AM
20 21 22 23 24 1 2 3 4 5 6
Tensión de Flujo Nominal
Tensión de Flujo Arranque
Tensión de Flujo
Reducido
Ciclo de Encendido Diario
Cambio a Flujo Reducido
12 min.
Horas
Voltios
230
220
210
200
190
180
170
Cambio a Flujo Nominal
PM
AM
20 21 22 23 24 1 2 3 4 5 6
Equipment start-up regime curve, rating, and reduced until sunrise of the
ESDONI equipment..
Start-up regime curve, rating, reduced and return to the rating regime of the
ESDONI equipment.
EQUIPMENT CONSUMPTION
N
OMINAL
VOLTAGE
N. VOLTAGE
N
. VOLTAGE
N. VOLTAGE
N
. VOLTAGE
LAMP LIFE SPAN
Starting flux voltage
Nominal flux voltage
Voltage
Daily starting cycle
Change to reduced flux
Hours
Reduced flux voltage
6 min.
Starting flux voltage
Nominal flux voltage
Voltage
Daily starting cycle
Change to reduced flux Change to nominal flux
Hours
Reduced flux voltage
6 min.