Gb taurus.doc

The TAURUS types cover the range from 800kVA to 4000kVA and allow for the choice of several input voltage variation
percentages from +15% up to –35%.
They are similar in construction to the SIRIUS Y but differ in terms of type of cooling.
The stabilisers are either cooled by a combination of air and oil or by a complete oil cooling system.
The measuring instrumentation for the TAURUS stabilisers is incorporated in a control panel on the cabinet door and
consists of two multi-task digital network analysers. Such instruments are able to provide with information
regarding the status of the lines upstream and downstream the voltage stabiliser such as phase and linked voltages,
current, power factor, active power, apparent power, reactive power, etc.
Such information can also be monitored on an industrial PC included in the unit.
Pilot lights are provided for each phase signalling ‘power on’, reaching of voltage regulation limits and direction of voltage
regulation (increase/decrease).
Alarms for minimum and maximum voltages, maximum current, over-temperature and ventilation off are also indicated.
The alarm indicators are accompanied by an acoustic alarm.
In the TAURUS type, these signals are located on the control panel mounted on the cabinet door an consisting of a set of
LEDs.
The stabiliser is provided with a voltage regulator protection circuit controlled by thermal probes. The circuit works in case
of temporary overload: it opens t he connection between the voltage regulator and the buck/boost transformer and short-
circuits the transformer primary winding at the same time.
By doing so, the transformer voltage drop is cancelled and the user can be supplied the mains voltage (although not
stabilised) without interruption.
The auxiliary circuit is protected by fuses.
The logic control, performed on the true rms voltage, is based on a 2-way microprocessor. By using this
device, monitoring the system and setting the stabiliser parameters via a PC connection are made possible.
TAURUS STANDARD FEATURES
FREQUENCY
ADMITTED LOAD VARIATION
from 0 up to 100%
ADMITTED LOAD UNBALANCE
up to 100%
MAINS WAVEFORM DISTORTION INCREMENT
< 0.2%
Natural Air (aided over 40°C) and oil
AMBIENT TEMPERATURE
-15/+45 °C
STORAGE TEMPERATURE
-25/+60°C
RELATIVE HUMIDITY
ADMITTED OVERLOAD
200% 2min
PROTECTION
INSTALLATION
RATING IN RELATION TO THE INPUT VARIATION PERCENTAGE
-25/+15%
-35/+15%
Any other variation range not mentioned in the table above can be dealt with on request.
TAURUS ±15% AUTOMATIC THREE-PHASE VOLTAGE STABILISER
RESPONSE
VOLTAGE INPUT
TAURUS ±20% AUTOMATIC THREE-PHASE VOLTAGE STABILISER
RESPONSE
VOLTAGE INPUT
TAURUS ±25% AUTOMATIC THREE-PHASE VOLTAGE STABILISER
RESPONSE
VOLTAGE INPUT
TAURUS –25%/+15% AUTOMATIC THREE-PHASE VOLTAGE STABILISER
RESPONSE
VOLTAGE INPUT
TIME CABINET GHT
-25/+15% CURRENT
1000-15/25
1250-15/25
1600-15/25
2000-15/25
2500-15/25
TAURUS –35%/+15% AUTOMATIC THREE-PHASE VOLTAGE STABILISER
RESPONSE
VOLTAGE INPUT
-35/+15% CURRENT
800-15/35
1000-15/35
1250-15/35
1600-15/35
2000-15/35
The technical data in the above tables are subject to change by the Company either for internal reasons or because of a specific request from the Customer Input output voltage 50Hz: 380/415V - Input output voltage 60Hz: 460/480V

Source: http://www.ilviokat.gr/files/pdf/stabiliser/TAURUS.pdf