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GE D30 User Manual

GE D30
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CHAPTER 5: SETTINGS CONTROL ELEMENTS
D30 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 5-267
5
Figure 5-152: Acknowledge mode
Application example
Consider an application where the selector switch is used to control setting groups 1 through 4 in the relay. The setting
groups are to be controlled from both user-programmable pushbutton 1 and from an external device via contact inputs 1
through 3. The active setting group is to be available as an encoded three-bit word to the external device and SCADA via
output contacts 1 through 3. The pre-selected setting group is to be applied automatically after five seconds of inactivity
of the control inputs. When the relay powers up, it is to synchronize the setting group to the three-bit control input.

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GE D30 Specifications

General IconGeneral
BrandGE
ModelD30
CategoryRelays
LanguageEnglish

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