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Redundant Control System - GE EX2100 User Manual

Excitation control.
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Ethernet Data Highway to Turbine Control and HMI
PT
PT
PT
PT
Fan-out
circuits
CT
CT
EPCT
TRIP
TRIP
TRIP
TRIP
86
86
86
86
2nd
2nd
2nd
2nd
TRIP
TRIP
TRIP
TRIP
ECTB
70V
EX2100 User's Guide GEH-6632

Redundant Control System

A redundant control system has three controllers and three redundant power supplies,
one for each controller. The power supply rack also holds three ground detector
modules. Figure 2-6 shows three EDCF boards, and there can be three EPCT boards,
if required.
Up to two Ethernet cables are connected to the ACLA controllers (one to M1 and
one to M2) for redundant communication with the turbine control and HMIs. Two
keypads are shown connected to M1 and M2. Both keypads have access to the
information in controller C.
Keypad
EBKP
Backplane
M1
Tool
P24V
P24V
70V
70V
E
PN24V
PN24V
G
D
EPSM
M
EPSM
Power
Power
Supply
Supply
EPBP
EPDM
back
plane
Field
125 V dc
Ground
Battery
Detector
EGDM
Rectified ac
Figure 2-6. Redundant Control System Cabling
Keypad
M2
C
Fiber-optic Field
V & I feedback
P24V
70V
E
E
PN24V
G
G
D
D
M
EPSM
M
Power
Supply
125 Vdc
Coil Power
GPA power
Option:
DACA
Chapter 2 Functional Description 2-13
EXTB
To Flashing
panel
53A
41
pilot
close
41 Device
41
53A
close
pilot
De-
53A
41
excitation
pilot
close
53B
41
Crowbar
pilot
trip
53B
41
De-ex
pilot
trip
pilot
70V
41
53B
-125Vdc
trip
70V
pilot
Gate Pulse Amplifiers
EGPA
125Vdc
EGPA
125Vdc
EDCF
EDCF
EDCF
PPT and air core CT
(AC) Feedbacks
EACF
EDEX
De-excitation
EXAM
Attenuator
Optional:
Crowbar

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  • AHMED Nov 25, 2012 01:47:
    ilike studing for the manuel white excitation EX2100