GE Industrial Solutions Entellisys 4.0 System Test Kit User Manual - Manual (Page 10)

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
CPU A CPU B
PT’s
Breaker
Messenger
CT CT CT
Breaker
Messenger
CT CT CT
Breaker
Messenger
CT CT CT
Breaker
Messenger
CT CT CT
Messenger Switch Messenger Switch
System
Test Kit
HMI
USB
USB
DB-25
DB-25
System Configuration
Download Link
Test Connector
System Interface
Ethernet Switch
CPU A CPU B
PT’s
Breaker
Messenger
CT CT CT CT CT CT
Breaker
Messenger
CT CT CT CT CT CT
Breaker
Messenger
CT CT CT CT CT CT
Breaker
Messenger
CT CT CT CT CT CT
Messenger Switch Messenger Switch Messenger Switch Messenger Switch
System
Test Kit
HMI
USB
USB
DB-25
DB-25
System Configuration
Download Link
Test Connector
System Interface
Ethernet Switch