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GE P643 User Manual

GE P643
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V03114
5
th
harmonic
Overfluxing detection
2nd harmonic
Inrush detection
No Gap detection
CT Saturation
External Fault
CT Supervision
Idiff > Is-HS1
Idiff > Is-HS2
&
&
1
&
Id biased
delay
1
K2
K1
Is2
Is1
&
Idiff Trip
Id biased
Trip
Idiff HS1 Trip
Idiff HS2 Trip
Id biased
Start
Change Is1 to
Is-CTS in
restraint mode
Figure 50: Differential protection blocking mechanisms
Chapter 6 - Transformer Differential Protection P64x
120 P64x-TM-EN-1.3

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GE P643 Specifications

General IconGeneral
BrandGE
ModelP643
CategoryRelays
LanguageEnglish

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