GE EX2100 用户手册

••••

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.

PT

CT

TRIP

TRIP

TRIP

TRIP

86

86

86

86

PT

PT

PT

CT

To Flashing
panel

41 Device

AC

LA

D

SPX

EPCT

E

M

IO

 M

a

st

er

 I/0

ESEL

Fan-out

circuits

2nd

2nd

2nd

2nd

TRIP

TRIP

TRIP

TRIP

ECTB

Br

id

ge

 1

AC

LA

DS

P

X

D

SPX

E

M

IO

 Mas

te

r I

/O

E

M

IO

 M

a

st

er

 I/0

Br

id

ge

 2

Br

id

ge

 3

Br

id

ge

 4

Br

id

ge

 5

Br

id

ge

 6

70V

De-
excitation

-125Vdc

Crowbar

Gate Pulse Amplifiers

EI

SB

ESE

L

EI

SB

EI

S

B

EDCF

EDCF

EDCF

EGPA

125Vdc

EGPA

125Vdc

Power

Supply

EPDM

Coil Power

125 V dc

Battery

125 Vdc

P24V

PN24V

70V

EDEX

De-excitation

EACF

PPT and air core CT

 (AC) Feedbacks

Field
Ground
Detector
EGDM

EXTB

53A
pilot

41

trip

41

trip

41

trip

53B
pilot

53B
pilot

53B
pilot

53A
pilot

53A
pilot

41

close

41

close

41

close

O

pt

ion:

 F

iel

d 

B

reaker

70V

70V

Tool

Ethernet Data Highway to Turbine Control and HMI

EBKP

Backplane

Keypad

Keypad

M2

M1

C

Power

Supply

70V

P24V

PN24V

Power

Supply

70V

P24V

PN24V

E
G
D
M

E
G
D
M

E
G
D
M

Fiber-optic Field

V & I feedback

EPSM

EPSM

EPSM

EPBP
back
plane

Option:

DACA

Rectified ac

Optional:

Crowbar

EXAM

Attenuator

GPA power