GE EntelliGuard G - Isolating Contacts (Drawout Type) Inspection; Power Terminals and Busbar Inspection; Trip Unit Testing

DET-653C EntelliGuard
®
G Circuit Breaker Application Guide
24-May-12 Section 3. EntelliGuard
®
TU Trip Unit System
©2012 General Electric All Rights Reserved
34
Table 3.27. EntelliGuard Trip Unit Summary (continued)
Feature
Characteristic
Specification
Accuracy (at 100%)
Ground Fault Protection
Pick Up Range
0.1/0.2 – 10
-
External Zero Seq. (Gnd Return) CT
Input
1A = 100%
-
Delay Band Range
0.042/0.058-0.417/0.0917sec
-
Delay Bands
9/7/2015
-
I
2
t Slopes
2
-
I
4
t Slopes
1
-
GF Alarm Option
yes
-
Zero Selective Interlock
Short time
yes
-
Ground Fault
yes
-
Separate ZSI Band Settings
yes
-
Instantaneous
yes
-
Protective Relays
Current Unbalanced
10% - 50% difference between highest
& lowest phase compared to average,
1% steps; 1 to 15sec delay in 1sec
steps
2%, ±0.1sec on delay
Over Voltage
110% - 115% of line voltage in 1%
Steps; 1-15sec delay in 1sec steps
2%, ±0.1sec on delay
Under Voltage
30% - 85% of line voltage in 1% Steps;
1-15 Second Delay in 1 sec steps
2%, ±0.1sec on delay
Voltage Unbalance
10% - 50% difference between highest
& lowest phase compared to average,
1% steps; 1 to 15sec delay in 1sec
steps
2%, ±0.1sec on delay
Power Reversal
Line to Load OR Load to Line, From 10
to 990kW in 10kW steps
2%
Current Level (Alarm/Load
Management)
2
-
Metering, Diagnostic, and
Miscellaneous Functions
Current (A)
A, B, C & neutral
0000 Resolution, 2%
Voltage (V)
A, B, & C
0000 resolution, 2%
Real Power (kW)
A, B, C and total
000.000 resolution, 4%
Reactive Power (KVAr)
A, B, C and total
000.000 resolution, 4%
Apparent Power (kVA)
A, B, C and total
000.000 resolution, 4%
Energy (KWh)
A, B, C and total
000.000 resolution, 4%
Frequency (Hz)
yes
00 resolution, 1 cycle
Real Demand (kW)
total
000.000 resolution, 4%
Power Factor (%)
A, B, C
00 resolution, 4%
Peak Power Demand (KW)
A, B, C
000.000 resolution, 4%
Waveform Capture (COMTrade)
yes (requires PMCS)
-
Trip Operations Counter
yes
-
Temperature Monitoring
future
-
Event Log
last 10 events
-
Serial Comm.
Open Protocols (13)
Modbus RTU, Profibus DP
-
Front Port for Local Comm
yes – standard
-
I/O
Programmable Relays
4
-
Health Monitoring Relay
1
-
Flexibility
Universal Trip Plugs (16)
yes
-
Adjustable (20%-100%) Trip Plug
yes
-
Universal Spare Trip Unit
yes
-
Interchangeable Trip Unit
with = sensor & process
-
All Settings can be performed via the front of the trip unit. Also available is Free Set-up Software downloadable from
geindustrial.com Download and upload trip unit settings. Ability to download and view the waveform captured by the trip
unit. Also has the ability to store settings in an Offline file and then compare it to the current settings. Requires the
EntelliGuard TU Test Kit, GTUTK20.