Process Bus Modules - GE D30 Instruction Manual

3.2 WIRING
3
The phase voltage channels are used for most metering and protection purposes. The auxiliary voltage channel is used as
input for the synchrocheck and volts-per-hertz features.
Substitute the tilde "~" symbol with the slot position of the module in the following figure.
NOTE
The D30 can be ordered with a process bus interface module. This module is designed to interface with the GE Multilin
HardFiber system, allowing bidirectional IEC 61850 fiber optic communications with up to eight HardFiber merging units,
known as Bricks. The HardFiber system has been designed to integrate seamlessly with the existing UR-series applica-
tions, including protection functions, FlexLogic, metering, and communications.
The IEC 61850 process bus system offers the following benefits:
• Reduces labor associated with design, installation, and testing of protection and control applications using the D30 by
reducing the number of individual copper terminations
• Integrates seamlessly with existing D30 applications, since the IEC 61850 process bus interface module replaces the
traditional CT/VT modules
• Communicates using open standard IEC 61850 messaging
For additional details on the HardFiber system, see GE publication GEK-113658: HardFiber Process Bus System Instruc-
tion Manual.
3-12
Figure 3–12: ZERO-SEQUENCE CORE BALANCE CT INSTALLATION
Figure 3–13: CT/VT MODULE WIRING
D30 Line Distance Protection System
3 HARDWARE

3.2.5 PROCESS BUS MODULES

GE Multilin