GE DGP Series, Instruction Manual

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DGP Digital Generator Protection System GE Power Management
1.2 INTRODUCTION 1 PRODUCT DESCRIPTION
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1.2 INTRODUCTION 1.2.1 GENERAL
The DGP Digital Generator Protection™ System is a microprocessor-based digital relay system that uses
waveform sampling of current and voltage inputs to provide protection, control and monitoring of generators.
These samples are used to compute current and voltage phasors that are used for the protection-function
algorithms. The DGP™ system uses a man-machine interface (MMI) and GE-Link software for local and
remote communication respectively.
This instruction book describes all the functions available in the various standard DGP models. Refer
to the SELECTION GUIDE in the previous section to determine functions included in a specific model.
1.2.2 APPLICATION
The DGP system is designed to be used on hydroelectric, gas, and steam generating units. Any size of gener-
ator can be protected with this digital system.
More detailed application considerations are contained below in the remaining headings of this section and in
Chapter 2: CALCULATION OF SETTINGS.
A typical wiring diagram for the DGP relay is shown on the following page.