GE Industrial Solutions Entellisys System Test Kit - Manual (Page 9)

System Test Kit 10
1.2 Test overview/architecture
The System Test Kit uses the method of low voltage injection to perform its tests. The test kit
drives these low level voltages (10V p-p) into individual test inputs of the Messenger's A/D
converter. Basic protection scheme, Functional protection, and Single Point Relay protection of
the entire system can be tested using low voltage injection from the System Test Kit.
Figure 1-3 Entellisys system architecture with System Test Kit
C P U A C P U B
P T ’s
B r e a k e r
M e s s e n g e r
C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T
M e s s e n g e r S w i t c h M e s s e n g e r S w it c h
S y s t e m
T e s t K i t
H M I
U S B
U S B
D B - 2 5
D B - 2 5
S y s t e m C o n f i g u r a t i o n
D o w n l o a d L i n k
T e s t C o n n e c t o r
S y s t e m I n t e r f a c e
E t h e r n e t S w it c h
C P U A C P U B
P T ’s
B r e a k e r
M e s s e n g e r
C T C T C T C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T C T C T C T
B r e a k e r
M e s s e n g e r
C T C T C T C T C T C T
M e s s e n g e r S w i t c h M e s s e n g e r S w i t c h M e s s e n g e r S w it c h M e s s e n g e r S w it c h
S y s t e m
T e s t K i t
H M I
U S B
U S B
D B - 2 5
D B - 2 5
S y s t e m C o n f i g u r a t i o n
D o w n l o a d L i n k
T e s t C o n n e c t o r
S y s t e m I n t e r f a c e
E t h e r n e t S w it c h