EntelliGuard R AKD-6
GE Energy
EntelliGuard® R
Circuit Breaker Retrofill
AKD-6 Installation Manual
General Electric AKD-6 Low Voltage Switchgear is a free-standing assembly of
metal-enclosed units of power circuit breakers and other auxiliary power circuit
protective devices. It may also be a part of a single-ended or double-ended
load center unit substation. It’s a draw-out breaker. One particular feature of
the AKD-6 is that the breaker is built into the cassette.
imagination at work
1 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Table of Content
Preface .......................................................................................................................................................................................3
Hazards..........................................................................................................................................................................................................................3
Danger ......................................................................................................................................................................................................................3
Warning....................................................................................................................................................................................................................4
Caution......................................................................................................................................................................................................................4
Notice or Note .......................................................................................................................................................................................................5
Warranty.......................................................................................................................................................................................................................5
Trademarks and Patents.......................................................................................................................................................................................5
Standards .....................................................................................................................................................................................................................5
Document Conventions.........................................................................................................................................................................................5
Related Publications................................................................................................................................................................................................6
Service and Support ................................................................................................................................................................................................6
Estimated Time to Complete Tasks ..................................................................................................................................................................6
Description................................................................................................................................................................................ 6
Product Specs.............................................................................................................................................................................................................6
Weight (lbs)..............................................................................................................................................................................................................6
Views..........................................................................................................................................................................................................................7
History and Types ....................................................................................................................................................................8
AKD ..................................................................................................................................................................................................................................8
AKD-6—AKR30H/AKR30L/AKR50H....................................................................................................................................................................8
Mechanical Drawings .............................................................................................................................................................................................9
AKD-6—Compartment...........................................................................................................................................................10
Interior.........................................................................................................................................................................................................................10
Unpack Retrofill Circuit Breaker..........................................................................................................................................13
Quality ......................................................................................................................................................................................................................... 14
Information Label...................................................................................................................................................................................................14
Product and Catalog Serial Numbers...........................................................................................................................................................14
Remove Circuit Breaker from Container..................................................................................................................................................... 15
Inspect.................................................................................................................................................................................................................... 15
Use Lifting Truck................................................................................................................................................................................................15
2 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Store Circuit Breaker .............................................................................................................................................................16
Check Before Installing .........................................................................................................................................................17
Clean and Grease Breaker....................................................................................................................................................17
Rack Out Legacy or Existing CB...........................................................................................................................................18
Install Secondary Disconnect Bullets (Breaker)................................................................................................................18
Wire Secondary Disconnect Assembly—AKR30/30H/50/50H ..........................................................................................................20
Install Position Switch Actuator (Breaker) .........................................................................................................................21
Install Door Interlock System (Breaker) .............................................................................................................................23
Install Neutral Rogowski Current Transformer (Breaker)...............................................................................................25
19-Pin Programmer Secondary Disconnect (Breaker).....................................................................................................25
Install or Insert AKD-6 Retrofill............................................................................................................................................27
Remove and Replace Existing Door....................................................................................................................................32
Prepare Switchgear Compartment.....................................................................................................................................32
Install Neutral Disconnect Assembly (Bus Compartment) .............................................................................................34
Multi-Source Ground Fault...................................................................................................................................................35
Install 19-Pin Programmer Secondary Disconnect (Compartment) .............................................................................36
Wiring Diagram for the AK/AKR Retrofill ...........................................................................................................................38
Notes ........................................................................................................................................................................................39
3 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Preface
Hazards
The following important highlighted information appears throughout this document to warn of potential hazards
or to call attention to information that clarifies a procedure. Carefully read all instructions and become familiar
with the devices before trying to install, operate, service, or maintain this equipment.
Danger
This indicates a hazardous situation which, if not avoided, results in death or serious injury. A variety of electrical
hazards warnings are displayed here and are applied to installation manuals. These are standard or generic alerts
and labels that must be taken quite seriously when installing Retrofill circuit breakers in AKD switchgear and when
working with potentially dangerous electrical equipment (Table 1). There are also dangers, pertaining to product
safety, that need to be custom-written for particular or specific circumstances (Table 2).
Table 1. Generic Danger Alerts and Labels Used for Documentation and
Dangerous Equipment
Table 2. Custom Danger Alerts and
Labels Used for Documentation and
Dangerous Equipment
4 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Warning
This indicates a hazardous situation, which, if not avoided, would result in death or serious injury. A variety of
electrical hazards warnings are displayed here and are applied to installation manuals. These are standard or
generic alerts and labels that must be taken quite seriously when installing Retrofill circuit breakers in AKD
switchgear and when working equipment that can cause injury, but may not be necessarily fatal (Table 3). There
are also warnings, pertaining to product safety, that need to be custom-written for particular or specific
circumstances (Table 4).
Table 3. Generic Warning
Alerts and Labels Used for
Documentation and Dangerous
Equipment
Table 4. Custom Warning Alerts and Labels Used for
Documentation and Dangerous Equipment
Caution
This pertains to a hazard that has a low level of risk, which means that if not avoided, it could result in minor or
moderate injury. It also indicates that failure to comply with instructions may result in product damage. The label
here requires a specific message that targets a special product or procedure (Table 5).
Table 5. Custom Caution Alerts and Labels Used for
Documentation and Operating Equipment
5 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Notice or Note
This indicates important information in that it aids in job performance, that is, a notice or note is used to notify
practices not related to personal injury (Table 6).
Table 6. Custom Notice Alerts and Labels Used for
Documentation and Operating Equipment
Warranty
This document is based on information available at the time of its publication. While efforts have been made to
ensure accuracy, the information contained herein does not cover all details or variations in hardware and
software, not does it provide for every possible contingency in connection with installation, operation, and
maintenance.
Features may be described herein that are not present in all hardware and software systems. GE Energy assumes
no obligation of notice to holders of this document with respect to changes subsequently made. GE Energy makes
no representation or warranty, expressed, implied, or statutory, with respect to, and assumes no responsibility for
the accuracy, completeness, sufficiency, or usefulness of the information contained here it. Not warrantees of
merchantability or fitness for purpose shall apply.
Contact your local sales office if further information is required concerning any aspect of EntelliGuard R Circuit
breaker operation or maintenance.
Trademarks and Patents
EntelliGuard® R
EntelliGuard® TU
EntelliGuard® Trip Unit
EntelliGuard® G
Standards
Agency Certification
Standard Number:
Title:
ANSI C37.13,16,17,20,50,59
Low-Voltage AC Power Circuit Breakers
UL 1066
Low-Voltage AC and DC Power Circuit Breakers Used in Enclosures
Document Conventions
Topics and text are divided into primary, secondary, and tertiary paragraph headings.
6 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Related Publications
Publication
Publication Number
Brochure
DEA-532
Snapshot
DEE-543
Installation Manual AKD8
DEH-41549
Installation Manual AKD6
DEH-41548
Installation Manual AKD5
DEH-41547
Accessory: Door Interlock (Door Interlock Kit)
DEH-41529
Accessory Retrofill Doors Assembly
DEH-41563
Accessory: Position Switch Plate & Position Switch Assembly & Wiring (Position Switch Kit)
DEH-41530
Accessory: Neutral Rogowski CT Disconnect (Neutral Assemblies)
DEH-41531
Accessory: Programmer Disconnects
DEH-41532
Accessory: Finger Clusters (Cluster Assemblies)
DEH-41533
Accessory: Secondary Disconnects
DEH-41534
FAQ
DEQ-171
Application Guide
DET-753
Guideform Spec
DET-754
Spare/Renewal Parts Guide
DET-755
Service and Support
In addition to the local field sales office and service teams, GE also has a dedicated AfterMarket team to assist
customers with legacy information, selection, ordering, and upgrading.
Estimated Time to Complete Tasks
It takes about 20 minutes to install a feature-for-feature LSI assembly. This includes racking out the old breaker,
racking in the new breaker, and replacing the door. If new options are desired, or if it’s a 4-wire LSIG circuit or
modifications are needed to the cubicle, then additional time is required. Time also does not include wiring the
secondary disconnect on the Retrofill.
Description
Product Specs
Weight (lbs)
Retrofill Breaker
Weight
Box Weight 10101653P1
Pallet 10101650P1 Wt
Accessories
Wt
Total
Weight
AKD6
213
16
33
2
264
Retrofill Breaker
Weight
PB2 Large Frame Box Wt
10101653P1
Pallet 10101513P1 Wt
Accessories
Wt
Total
Weight
AKD6
213
11
24
2
250
7 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Views
General Electric AKD-6 Low Voltage Switchgear is a free-standing assembly of metal-enclosed units of power
circuit breakers and other auxiliary power circuit protective devices. It may also be a part of a single-ended or
double-ended load center unit substation. It’s a draw-out breaker. One particular feature of the AKD-6 is that
the breaker is built into the cassette. Figure 1 shows the AKD-6 EntelliGuard R Retrofill breaker permanently
encased in its cassette (front view). Figure 2 shows also the AKD-6 EntelliGuard R Retrofill in the cassette (rear view).
Figure 3 presents the AKR50H (AKD-6) with four-fingered clusters.
Figure 1. AKD-6—AKR30H\50H Breaker in Cassette
(Front View)
Figure 2. AKD-6—AKR30H Breaker in Cassette
(Rear View)
Figure 3. AKD-6—AKR50H Breaker in Cassette (Rear View)
The EntelliGuard R Circuit Breaker is suitable for application on power systems up to 600 VAC 50/60 Hz systems
and up to 600 Vdc as a main/source breaker, feeder breaker, bus coupler, or tie breaker.
8 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
History and Types
AKD
AK—Power Circuit Breaker Equipment
D—Drawout circuit breaker construction
Manufactured from 1951 to 1975 were these: all bolted, copper bus design, all drawout breakers—AK-1, —2, —3,—
15 / 25 / 50 / 75 / 100; the 4000A-max bus rating, 4 levels of bus, ring-bus used in all feeder sections, and the main
bus with provisions for future extension; sections in outdoor construction, which did not line up in the front; and
indoor construction, with extended frames allowing the section fronts to line up. Moreover, there were indoor
depths 49" (225 / 600A breakers), 59" (1600A breakers), and 63" (3200 / 4000-A breakers).
Back then, breakers had a ratcheting drawout mechanism, with an open-door drawout. Breakers were painted
ANSI 61, light gray, manufactured in Philadelphia from 1951 to the mid-60s and in Burlington from the mid-60s
to 1975.
The breaker compartment was a welded assembly, and the equipment frame was bolted. Breaker boxes were
stacked to make a vertical section with equipment frame around the breaker boxes. There were no bus
compartment barriers, just an open bus design. Ring silver-plating was applied to bolted connections.
AKD-6—AKR30H/AKR30L/AKR50H
The AKD-6 was manufactured in Salisbury, NC from 1977 to 1981. Some AKD-5s, which were built in Salisbury from
1975 until 1977, got name-plated as AKD-6. There is no “flash-butt” welded aluminum to copper. Aluminum bus is
tin-plated and bolted at shipping splits (but welded everywhere else). Copper bus design has ring silver plating at
bolted joints. AKR-75 / 100s were introduced during this time. Stab-and-finger connections on 3200A and 4000A
breakers were improvements, versus the round the primary disconnects located on the AKD-5s.
The AKD-6 uses inner-house drawout breaker compartments and tuning fork primary disconnects (extrusions) on
the 800—2000A breaker compartments. They have copper feeder breaker runbacks and 60"-deep frames with 18"optional rear extensions. They are painted ANSI 61 light gray and breakers have ECS or SST trip units.
9 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Mechanical Drawings
Below is an AKD-6 mechanical drawing that dimensions the breaker (DWG 1 and DWG 2)
DWG 1. AKD-6—Retrofill for AKR30/30H
DWG 2. AKD-6—Retrofill for AKR50/50H
10 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
AKD-6—Compartment
Interior
Figure 4 displays an empty compartment of the AKD-6 switchgear. Figure 5 shows features of the AKD-6 interior.
Figure 4. AKD-6 Switchgear, Empty Compartment
11 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Figure 5. AKD-6 Compartment Distinctions
Figure 6 is an example of a compartment in the AKD-6 switchgear that is empty; that is, the upper compartment is
ready for a retrofill breaker where the legacy, or original breaker, had been racked out and new wire connections
made. The lower compartment has a retrofill breaker, already installed. In this figure, there is also a photo showing
a mechanically-operated status indicator (connect/disconnect) that worked with the original breaker. This device, if
left in the compartment as is, won’t interfere with the retrofill breaker; it can, however, be disassembled by
removing its hardware. Figure 7 displays the bus inside the gear.
12 EntelliGuard R Circuit Breaker Retrofill AKD-6 Installation Manual DEH-41548 02/12
Figure 6. AKD6 Breaker Compartment (Upper and Lower Compartments)
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