GE EntelliGuard G - Outputs for Entelliguard G Circuit Breakers; Waveform Capture; Table 3.25 Input Assignments Possible

DET-653C EntelliGuard
®
G Circuit Breaker Application Guide
24-May-12 Section 3. EntelliGuard
®
TU Trip Unit System
©2012 General Electric All Rights Reserved
32
Table 3.25 shows the assignment for the inputs.
Table 3.25. Input Assignments Possible
Input
Assignment
Summary Description
1
OFF
No action taken.
TRIP
Will cause the circuit breaker to trip
RELT
Input causes the unit to use the RELT set-
point as long as input is active. Note: RELT
must be set to REMOTE at the Trip HMI or
via serial communications.
RESET
Input causes Output Contacts (non RELT)
to open. This will also clear the event
information from the front screen.
Enables the ability to open the Alarm
Output contacts remotely.
2
OFF
No action taken.
TRIP
Will cause the circuit breaker to trip
RESET
Input causes Output Contacts (non RELT)
to open. This will also clear the event
information from the front screen.
Enables the ability to open the Alarm
Output contacts remotely.
Note: When RELT is Optioned, Input1 is dedicated to RELT.
Contacts are rated for 30 VDC/25 VAC MAX, 1 Amp.
Outputs for EntelliGuard G Circuit Breakers
The number of outputs available varies by breaker. The
EntelliGuard G circuit breaker has three. These outputs are
relay contact outputs to secondary disconnect. Each output
can be configured per Table 3.26.
Table 3.26. Output Configuration
Function
Group #
Summary Description
GF alarm 1
Closes when GF alarm is activated.
Relays 1 or 2.
Over-current trip
(GF, INST, LT, ST)
2
Over-voltage trip closes the relay.
Relays 1 or 2.
RELT on 7
Closes relay when Reduced Let
Through Energy Instantaneous
pickup setting is enabled. Relays 1
or 2.
Any protective
relay
3
Closes relays when protective the
relay is in pickup. Relays 1 or 2.
Current alarm 1 4
Exceeding current alarm pick-up
closes relay. Relays 1 or 2.
Current alarm 2 5
Exceeding current alarm pick-up
closes relay. Relays 1 or 2.
Health status. NO
or NC may be
assigned to Health
OK via serial
communication
6
Relay contact will change state
when the Health Monitoring
algorithm senses a change. Relays
1 or 2.
Waveform Capture
When a fault has taken place, it is important to visualize the
event. The Waveform Capture option included in the
advanced trip unit can track and visualize any fault event.
The device tracks eight cycles, four before and four after the
event, with resolution of 48 samples per cycle at 60Hz and
stores the results in memory. It registers events in all three
phases and the neutral. After the event, the waveform is
stored in COMTrade format and can be accessed by using
the waveform client module of the Enervista software. When
the upload into this software is complete, the tripuUnit will
reset this function and be available to register the next
event.