Specifications

105
Stabilisers
WHY USE STABILISERS?
Proper operation of most electric and
electronic equipment depends to a
large extent on the power supply
voltage that must be kept as steady
and as near to the nominal value as
possible. In many installations, the
mains power supply tends to fluctuate
for a number of reasons. So devices
that overcome and correct this problem
are often used and the ideal solution is
a stabiliser. AROS produces a full range
of electromechanical and electronic
stabilisers as well as electronic line
conditioners.
ELECTROMECHANICAL STABILISERS
This type of stabiliser controls the
voltage output by adding or removing
(by moving a brush converter) voltage
so as to restore output to the nominal
value. Advantages of using an
electromechanical stabiliser are:
• High quality voltage
• Insensitive to the type of load or
power factor
• Low weight/power ratio
• High stabilizing accuracy
• High reliability
• Wide range of power ratings for
single-phase or three-phase voltages.
ELECTRONIC STABILISERS
The operating principle of an electronic
stabiliser is based on the regulation of
the voltage through self-transformer
sockets selected and connected to the
output via static switches.
Regulation is determined by a specific
electronic control circuit.
Advantages of using an electronic
stabiliser are:
• No harmonic distortion
• Insensitive to the type of load or
power factor
• Low weight/power ratio
• High reliability
• High voltage regulation speed.
ELECTRONIC LINE CONDITIONERS
An electronic line conditioner combines
an electronic stabiliser, an isolating
transformer and high attenuation
EMI/RFI filters in a single unit.
It provides maximum protection for
installations susceptible to voltage
fluctuations, high frequency line noise
and power surges. Advantages of the
line conditioners are:
• Isolation between the line
and the load
• No harmonic distortion
• Insensitive to the type of load
or power factor
• High voltage regulation speed
• Protection against power surges
• Protection against line noise.