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EntelliGuard G
GE EntelliGuard G Application Guide
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EntelliGuar
d
®
G
Cir
cuit Br
eaker
Application Guide
GE Energy
Now with the following new ratings:
• Envelope 1, 100KAIC, 2000A and below
• Envelope 1, 65KAIC, 1200A and below
• Envelope 2, 100KAIC @ 600V rating
• UL489B DC Switch Ratings @ 600V and 1000V DC
2
Table of Contents
Table of Contents
2
Introduction
7
Table 1.3. ANSI/UL1066 Ratings
8
Table 1.6. Non-Automatic Circuit Breaker/Molded Case Switch – UL Version Ratings
9
Figure 2.1. Entelliguard G Features and Characteristics
10
Standard and Optional Features
11
Short Time Rating (1/2 Sec)
11
Short Circuit/High Interruption Rating
11
Thermal Performance
11
Reverse Feed
11
Two-Step Stored Energy Mechanism
11
Field Installable Trip Units and Accessories
11
Coils
12
Breaker/Main Contact Status
12
Motor Operator
12
Electrical Closing Button
12
Ready to Close Indicator
12
Mounting Straps/Accessories
12
Auxiliary Switches
12
Interlocks
12
Breaker Status Indicators
12
Rejection Feature
13
Through-Door Racking
13
Padlocking Devices
13
Key Interlock
13
Shutters
13
Carriage Position Switch
13
Lifting Beam
13
IP Covers
13
Mechanical Counter
13
Cable Interlocks (OEM Applications Only)
14
Bell Alarm Contact
14
Section 2. Features and Characteristics
10
Section 3. Entelliguard TU Trip Unit System
15
Introduction
15
Reliability Without Compromising Protection
15
Arc Flash and the Entelliguard TU Trip Unit
15
Selectivity with Molded Case Circuit Breakers and Other Devices
16
Figure 3.1. Arcing Current
16
Table 3.1. Entelliguard Selectivity above GE Current Limiting Circuit Breakers
17
Table 3.2. Maximum Instantaneous Pickup Multipliers for GE Circuit Breakers
18
Table 3.3. Selectivity with Entelliguard TU Trip Units in ANSI and ICCB/ Power Break II Circuit Breakers
19
Above Downstream Feeders
20
The Waveform Recognition Selective Instantaneous
20
Above Other Power Circuit Breakers
21
Table 3.4. Minimum Selective Clearing Times for an Entelliguard G Circuit Breaker
21
Terminology
21
Long Time Protection
22
Thermal Long Time Overcurrent
22
Fuse-Shaped Steep Long Time Overcurrent
23
Table 3.6. Fuse Characteristic: Nominal Clearing and Commit Times for X Multipliers of Nominal Pickup
24
Short Time Protection
25
Short Time Pickup
25
Short Time Bands
26
Short Time I 2 T Slopes
26
T (in or Out)
26
Thermal Memory
25
Ground Fault Protection
26
Internal Residual Summation
26
External Zero Sequence Input
27
Ground Fault Pickup Settings
27
Ground Fault Protection Curves
27
Ground Fault Time Delay Bands
27
Instantaneous Protection
27
Adjustable Selective Instantaneous
28
High Set Instantaneous Overcurrent (HSOIC)
29
Making Current Release (MCR)
29
Reduced Energy Let-Through (RELT) Instantaneous Trip
29
Reduced Energy Let-Through Switch Wiring
30
Zone Selective Interlocking (ZSI)
30
Table 3.14. Instantaneous ZSI on Entelliguard TU Trip Units in ANSI Entelliguard G Circuit Breakers
31
Figure 3.11. Zone Selective Interlocked CB, Upper CB Shown "Unrestrained
32
Rating Plugs
32
Table 3.15. Trip Rating Plug Specifications
33
Universal Spare Trip Unit
34
Table 3.18. Universal Spare Trip Unit Options (User-Selected)
35
Protective Relays
36
Relay Functions
36
Voltage Unbalance Relay
36
Current Unbalance Relay
37
Under Voltage Relay
37
Under Voltage Relay Zero-Volt Trip Enable
37
Over Voltage Relay
37
Power-Reversal Relay
37
Power-Direction Setup
37
Potential Transformer Primary Voltage
37
Potential Transformer Connection
37
Power Demand Intervals
37
Current Alarm
37
Outputs for Entelliguard G Circuit Breakers
38
Waveform Capture
38
Table 3.25 Input Assignments Possible
38
Entelliguard Trip Unit Performance Characteristics Graphs
39
Table 3.28. Metering Data Startup Levels for Breaker with Entelliguard Trip Unit with 24 VDC
41
Figure 3.14. Long Time Circuit Breaker Characteristics
42
Figure 3.15. Short Time Pickup and Delay Bands
43
Figure 3.16. Ground Fault: Multiple of Sensor
44
Figure 3.17. Instantaneous, Override (HSIOC), Reduced Energy Let-Through Instantaneous (RELT)
45
Section 4. Accessories
46
Introduction
46
Motorized Spring Charging Unit
46
Circuit Breaker Closing Coils - Standard and Commanded
46
Command Operation Module
47
Shunt Trip
47
Status Indication Switch (Coil Signaling Contact)
47
Under Voltage Release with Fixed Time Delay
47
Table 4.2. Closing Coil Characteristics
47
Time Delay Module for UVR (Externally Mounted)
48
Remote Operation Coil Combination
48
Ready to Close Contact
48
Auxiliary Switches
48
Figure 4.2. Time Delay Module
48
Table 4.11. Power Rated (3NO/3NC) (Ref Drawing 10099230)
49
Circuit Breaker - Key Interlock Facility
50
Table 4.14. Power Rated (4NO/4NC) + Low Signal (Hi-Fi) (4NO/4NC) (Ref Drawing 10099234
50
Carriage Position Switch (TOC)
51
Mechanical Interlocks (Cable/Rod) (OEM Applications Only)
51
Cables
51
Table 4.20. Interlock Configurations
52
Bell Alarm with Lockout
53
Charging Spring Status Indicator
53
Secondary Disconnects (Factory-Installed/Field Installable)
53
Table 4.26. Wiring Schematic for Block B
54
Table 4.29. Wiring Schematic Nomenclature Definitions
55
Cassette/Substructure
56
Door Interlocks
56
Ground Fault
56
Mechanical Operations Counter
56
Position Indicators
56
Sealed Door Panel Escutcheon
56
Back Connected Terminations
57
Table 4.34. Back Connected Terminations
59
Front Flat Terminations
62
Table 4.36. Cluster
63
Table 4.37. Cluster Pad
64
Grounding/Earthing Device (IEC Only)
65
Rejection Device
65
Remote Racker
65
Terminations for DC Switches UL 489B
65
Section 5. Catalog Numbering Guide
66
Entelliguard G ANSI/UL489 Circuit Breaker Catalog Number Guide
66
Entelliguard G Cassette Catalog Number Guide
74
Entelliguard TU Trip Unit for Entelliguard G Breaker
76
Entelliguard TU Trip Unit Rating Plugs
78
Section 6. Application Data
79
Introduction
79
Key Features
79
UL1066 Low Voltage Power Circuit Breakers
79
UL498 Stored Energy Insulated Case Circuit Breakers
79
IEC Rated Circuit Breakers for IEC Equipment and Applications
79
All Types
79
Ratings and Sizes
79
Short Circuit Interrupting Ratings
80
Withstand Ratings, Selective Adjustable-, RELT- and Override-Instantaneous Protection
80
Close and Latch Ratings and Making Current Release (MCR) Instantaneous Trip
81
Operations
82
Selecting a Circuit Breaker for an Application
82
Cable or Bus Size - Factor a
82
Table 6.4. Entelliguard G Non-Automatic Switch Close, Latch, and Withstand Ratings, UL489 Listed
82
Ambient Temperature - Factor B
83
Operating Frequency - Factor C
83
Altitude - Factor D
83
Load Class Rating - Factor E
83
Safety - Factor F
84
Other Factors that Influence Circuit Breaker Sizing 100% Vs. 80% Ratings
84
Table 6.9. Load Class Rating – Factor E
84
Section 7. Physical Data
85
Dimensional Drawings
85
Dimensional Drawing Index
86
Dimensions
87
Section 8. Standards and References
88
Publications
91
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GE EntelliGuard G Specifications
General
Brand
GE
Model
EntelliGuard G
Category
Circuit breakers
Language
English
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