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NG10 - Manual - 01 - 2015
GENERAL
2 GENERAL2 GENERAL
Preface
The relay can be typically used as differential protection fo generators, motors and short lines.
The phase and amplitude adaptation of the current for differential protection can be achieved both
through internal compensation is through the use of external adapters transformers
Following input circuits are available:
• Three phase current side H
• Three phase current side L
• One residual current.
For any input the rated current is independently selectable at 1 A or 5 A using dip-switch.
In addition to the main protection element, the breaker failure (BF), CT monitoring (74CT), Trip Circuit
Supervision (TCS) and programmable logic (PLC) are also provided.
Setting, programming and reading operations must be effected by means of Personal Computer with
ThyVisor software or by means of remote communication interface (RS485 bus, Ethernet network
and USB); all operations must be performed through MMI.
According to the hardware configurations, the NT10 protection relay can be shipped in various case
styles depending on the required mounting options:
• Flush.
• Projecting mounting.
• Rack.
• With separate operator panel.
Other options are:
• Auxiliary power supply operating range.
• Communication protocols.
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