• Fully automatic mains synchronization
• Extremely rapid synchronization with precise advance time
• Frequency and voltage control via actual values
• Reverse power protection during synchronization
• LCD display of current voltage and frequency values
• All settings can be scrolled through on the LCD
• Settings can be changed during operation
• Automatic switchover to off-mains operation
• Voltage and frequency display with a precision of < 1 %
• Voltage inputs 231V and 400V for generator and mains

This unit is used for synchronization with the public power supply system and for voltage and frequency control for off-mains operation. As a result of the short reaction times used in frequency and voltage control and in synchronization, the unit is especially suitable for gensets with short rev-up times and gas turbines. All inputs and outputs have a high potential separation and the output contacts are dimensioned for low-voltage use and equipped with internal spark quenching capacitors. All relevant settings can be changed and stored permanently by the customer via easy-to-use menu control and an LCD display. All current voltage and frequency values are displayed during operation. The monitor control of the unit is equipped with safety functions such as a watchdog and a key code function to prevent unauthorized alteration of the par

• Fully automatic mains synchronization
• Comprehensive test functions for the prevention of wrong synchronization
• Reverse power protection during synchronization
• Advance time adjustable from 10 - 250ms
• Maximum differential frequency adjustable from 0.15 - 1 Hz
• Frequency control with pulse output for "Up" and "Down"
• Automatic switchover to off-mains operation in case of mains failure
• Maximum differential voltage adjustable from 2 - 10%
• Voltage inputs 231V and 400V for generator and mains

• Fully automatic mains synchronization
• Comprehensive test functions for the prevention of wrong synchronization
• Reverse power protection during synchronization
• Advance time adjustable from 10 - 250ms
• Maximum differential frequency adjustable from 0.15 - 1Hz
• Maximum differential voltage adjustable from 2 - 10%
• Voltage inputs 231V and 400V for generator and mains

This unit is used for the parallel connection of generators with the mains. It is equipped with preselectable advance time ( generator switch delay ), frequency difference and voltage difference. The instantaneous states are indicated by LED`s. The current phase position of the two networks in comparision to one another can be observed via the 0V display. The DSY300 is equipped with protective measures against wrong synchronization and works reliably with all types of disturbances on the lines connect.

• Output contact switches in synchronized range only
• Phase deviation between both networks adjustable from 5 - 20 degrees
• Differential voltage for release adjustable from 2 - 10%
• Voltage inputs 231V and 400V for generator and mains

This unit is used for manual synchronization or for monitoring synchronization as an additional safeguard against wrong synchronization. Release is effected by closing of contacts 17-18. The unit works in both directions. The +/- phase range within which the output contact is closed is set via the phase adjuster.