Safety Information; Storage And Transport; Introduction - Pegasus GRT7-TH4 R2 Manual De Instalación, Operación Y Mantenimiento

1 SAFETY INFORMATION

To guarantee the safety of the operators, the correct installation and proper operation of the equipment, the following
precautions must be taken:
Installation and maintenance services should be performed only by qualified personnel, using appropriate equipment.
The product instruction manual and specific product documentation must always be consulted before proceeding with its
installation, handling, and parameter setting.
Adequate precautions should be taken to avoid drops, knocks, and/or risks to the operators and the equipment.
Do not touch inlet and outlet connections, and always keep them isolated from the rest of the panel command circuit,
except when otherwise instructed.
Always disconnect the main power supply and wait for the alternator to come to a complete stop, before touching any
electrical component associated with the equipment including the control connectors. Do not touch the input and output
connectors since high voltages may be present even after the power has been switched off and keep them isolated from
the rest of the principal command circuit of the alternator.
The equipment's electronic boards can have components that are sensitive to electrostatic discharges. Do not directly
touch components or connections. If this is absolutely necessary, then first touch the grounded metal body or use an
appropriately grounded bracelet.

2 STORAGE AND TRANSPORT

If the alternator needs to be stored for a short period of time before its installation and/or start-up, the following measures
should be taken:
The regulator must remain in its original package or in a similar package which provides the same safety conditions
against mechanical damages, excessive temperature and humidity so as to avoid rusting of contacts and metallic parts,
damages to integrated circuits or any other damage arising from improper storage;
Properly packaged, the regulator must be kept in a dry and well-ventilated area away from direct sunlight, rain, wind and
other adverse weather conditions in order to ensure the preservation of its operational functions.
Failure to comply with the above mentioned recommendations could exempt the supplier of the equipment from any
responsibilities and liabilities from any resulting damages as well as voiding the warranty on the equipment or damaged
part.

3 INTRODUCTION

The GRT7-TH4 R2 automatic analog voltage regulators are compact products featuring high reliability and low price, which
were designed with state-of-the-art technology for voltage regulation of brushless synchronous alternators.
Their control and regulation circuits use semiconductors and integrated circuits duly tested following the most demanding
quality requirements. It doesn't utilize mechanical components for field flashing since its system is completely static. It is
encapsulated in resin suitable for maritime environment and withstands vibrations up to 5Gs. It is fitted with internal voltage
adjustment by trimpot and external by potentiometer.
The stability of the system is controlled through trimpots that adjust proportional and integral gains, allowing a wide
adjustment range and permitting the operation of the regulator with several types of alternators, covering a large number
of dynamic characteristics.
It features under frequency protection (U/F limiter which does not permit that the alternator to be excited during the turn off
procedures or with a rotation decrease), whose intervention point is adjustable by trimpot, and the rated operation
frequency can be configured for 50Hz or 60Hz operation.
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Automatic Voltage Regulator – GRT7-TH4 R2 l 11