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GE 489 Communications Guide

GE 489
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68 489 GENERATOR MANAGEMENT RELAY – COMMUNICATIONS GUIDE
30 F4 Last Trip Hottest Stator RTD Temperature (°C) Class 1 Note 3
31 F1 Last Trip Bearing RTD Class 1 Note 3
32 F4 Last Trip Hottest Bearing RTD Temperature (°C) Class 1 Note 3
33 F1 Last Trip Other RTD Class 1 Note 3
34 F4 Last Trip Hottest Other RTD Temperature (°C) Class 1 Note 3
35 F1 Last Trip Ambient RTD Class 1 Note 3
36 F4 Last Trip Hottest Ambient RTD Temperature (°C) Class 1 Note 3
37 F12 Pre-Trip Analog Input 1 Class 1 Notes 3,9
38 F12 Pre-Trip Analog Input 2 Class 1 Notes 3,9
39 F12 Pre-Trip Analog Input 3 Class 1 Notes 3,9
40 F12 Pre-Trip Analog Input 4 Class 1 Notes 3,9
41 F1
Pre-Trip Fundamental Frequency Neutral Voltage
(volts)
Class 1 Notes 3,10
42 F10
Pre-Trip Fundamental Frequency Neutral Voltage
(tenths of a volt)
Class 1 Notes 3,10
43 F1 Pre-Trip Third Harmonic Neutral Voltage (volts) Class 1 Notes 3,10
44 F10
Pre-Trip Third Harmonic Neutral Voltage (tenths of
a volt)
Class 1 Notes 3,10
45 F2 Pre-Trip Vab/Iab (loss of excitation impedance) Class 1 Note 3
46 F1
Pre-Trip Vab/Iab Angle (loss of excitation
impedance angle)
Class 1 Note 3
47 F1
Scale factor for current readings (points marked
with “Note 7”). Will always be a power of 10 (1, 10,
100, etc.). Changes only when the configuration
setpoints are changed.
Class 1 Note 3
48 F1 Phase A Output Current Class 2 Note 7
49 F1 Phase B Output Current Class 2 Note 7
50 F1 Phase C Output Current Class 2 Note 7
51 F1 Phase A Neutral-Side Current Class 2 Note 7
52 F1 Phase B Neutral-Side Current Class 2 Note 7
53 F1 Phase C Neutral-Side Current Class 2 Note 7
54 F1 Phase A Differential Current Class 2 Note 7
55 F1 Phase B Differential Current Class 2 Note 7
56 F1 Phase C Differential Current Class 2 Note 7
57 F1 Average Phase Current Class 2 Note 7
58 F1 Generator Load (percent) Class 2
59 F1 Negative Sequence Current Class 2
Table CG–8: Analog Inputs Point List (Sheet 2 of 5)
INDEX FORMAT DESCRIPTION EVENT CLASS
ASSIGNED TO
NOTES

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GE 489 Specifications

General IconGeneral
BrandGE
Model489
CategoryRelays
LanguageEnglish

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