ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description...
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Transcript of ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description...
![Page 1: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/1.jpg)
ACADs (08-006) Covered
KeywordsSwitchgear, motor control, ground, circuit breaker.
Description
Supporting Material
1.3.7.2 1.3.7.4 2.1.14.1 5.1.1.1.1.1 5.1.1.2.1.3
5.1.1.2.1.7 5.1.1.2.1.12e 5.1.2.20
![Page 2: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/2.jpg)
SESSIONS 27 and 28
4160V Switchgear 480V Switchgear
480V Motor Control Centers
![Page 3: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/3.jpg)
Rule of Thumb
• 0 - 49 HP 480V MCC• 50 - 249 HP 480V Bus• +250 HP 4160V Bus
![Page 4: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/4.jpg)
• Hand out and review drawings:
• SD-2500-01• SD-2548-04
![Page 5: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/5.jpg)
Typical 4160v Switchgear Assembly
![Page 6: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/6.jpg)
Typical 4160v Circuit Breaker Cubicle(Front)
Relays Fuse BlockRelays
4160v Circuit
Breaker
Indicator Lights
Indicator Lights
![Page 7: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/7.jpg)
Typical 4160v Circuit Breaker Cubicle(Front)
Fuse Block
52h Switch52s Switch
Typical Tagging Points
![Page 8: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/8.jpg)
Typical 4160v Circuit Breaker Cubicle(Breaker Removed)
Shutterguard Clamp/Lock
Primary Contacts(Stabs)
Actuator arm for auxiliary relays above
Grounding Strap
Secondary Contacts(Auxiliary)
Shutterguard(Closed)
Shutterguard(Open)
Bus Ports & Connections
![Page 9: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/9.jpg)
Typical 4160v Circuit Breaker Cubicle(Back)
Current Transformer
Current Transformer(s)
Bus Bar(s)
Maple Plug
![Page 10: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/10.jpg)
Typical 4160v Circuit Breaker Racking Mechanism
Racking Crank(Bar)
Racking Crank(Bar)
4160v Circuit
Breaker
4160v Circuit
Breaker
Switchgear Compartment
Door
Sliding Panel
Unlock Lever
![Page 11: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/11.jpg)
Typical 4160v Circuit Breaker(Front)
Ground
Charging Lever
Closing Springs
5th Wheel Fitting
Charging Motor Switch
Manual Trip
Pushbutton
Position Indicator
Counter
Racking MechanismManual
Close Lever
![Page 12: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/12.jpg)
Typical 4160v Circuit Breaker(Back)
Primary Contacts(Stabs)
Secondary Contacts(Auxiliary)
Arc Chutes
Ground
Puffer(s)
![Page 13: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/13.jpg)
Typical 4160v Circuit Breaker Movable & Stationary Contacts
Puffer
Movable Arcing
Contact
Movable Main
Contact
Stationary Arcing
Contact
Stationary Main
Contact
NormalContact Wear
![Page 14: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/14.jpg)
Typical 4160v Circuit BreakerArc Formation
![Page 15: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/15.jpg)
Typical 4160v Circuit BreakerSchematics
Auto Trip Schematic
Spring Charging
Motor Schematic
![Page 16: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/16.jpg)
Typical 480v Circuit BreakerSwitchgear Assembly
![Page 17: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/17.jpg)
Typical 480v Circuit BreakerComponent Relationships
![Page 18: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/18.jpg)
Typical 480v Circuit BreakerRacking Mechanism
Power Shield
Racking Crank(Bar)
Position Indicator
Indicator Lights
480v Circuit
Breaker
Shutter Door
Indicator Lights
![Page 19: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/19.jpg)
Typical 480v Circuit BreakerPositions
Breaker Position Label
![Page 20: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/20.jpg)
Typical 480v Circuit BreakerSwitchgear Cubicle
Primary Contacts(Stabs)
Grounding Strap
Secondary Contacts(Auxiliary)
Tagged Stabs
Unprotected Stabs
Current Transformer
Grounding Strap
![Page 21: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/21.jpg)
Typical 480v Circuit BreakerRear of Cabinet
Fuse Block
Terminal Strip
Typical Tagging Point
![Page 22: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/22.jpg)
Typical 480v Circuit Breaker(Front)
Power Shield Arc Chutes
Manual Trip Pushbutton
Manual Electrical Close Pushbutton
Charging Motor Switch
Auto Trip Indicator/Reset
Tagging &Lock Hasp
Racking Shutter (Door)
Open/Close Indicator
Closing Spring Charge
Indicator
Manual Close Lever
Auxiliary Switches
![Page 23: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/23.jpg)
Typical 480v Circuit Breaker(Back)
Primary Contacts(Stabs)
Secondary Contacts(Auxiliary)
Charging Spring Motor
Ground
Primary & Secondary CT’s for Powershield
![Page 24: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/24.jpg)
Typical 480v Circuit BreakerSwitchgear Assembly
Movable Arcing
Contact
Movable Main
Contact
Stationary Arcing
Contact
Stationary Main
Contact
![Page 25: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/25.jpg)
Typical 480v Circuit BreakerMetal & Insulated Arc Chutes
![Page 26: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/26.jpg)
Typical 480v Circuit BreakerTrip Schematic
![Page 27: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/27.jpg)
Typical 480v Circuit BreakerSchematic
![Page 28: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/28.jpg)
Typical 4160v Ground Truck
![Page 29: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/29.jpg)
Typical 4160v Ground Truck
DoorDoor
Connections for grounding
cables
Connections for grounding
cables
Grounding cables
![Page 30: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/30.jpg)
Typical 4160v Ground Truck Chassis
Racking Mechanism
Primary Contacts
Ground
Racking Mechanism
5th Wheel Fitting
Racking Mechanism
![Page 31: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/31.jpg)
Typical 4160v Pot Fuses
Trip String Relays
Drawers
Terminal Strip
Rotary Switch
Undervoltage Knife
Switches
Agastat Time Delay Relay
![Page 32: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/32.jpg)
Typical 4160v Pot Fuses
Pot Fuse Clips
Power Control Secondary
Connection broken when
door is opened
Ground
![Page 33: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/33.jpg)
Typical Motor Control Center
![Page 34: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/34.jpg)
Typical AC Motor Control Center
Slide Switch
Term Board
Rotary Switch
Thermal Overload
Reset
Fuses
Transducer
Auxiliary Contact
RelayAuxiliary Contact
Fuses
Thermal Overload
Reset
Thermal Overload
Reset
![Page 35: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/35.jpg)
Typical DC Motor Control Center
Term Board
Auxiliary Contact
![Page 36: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/36.jpg)
Typical Motor Control Center
Term Board
Auxiliary Contact
Relay
Rotary Switch
Rotary Switch Connections
(fingers)
![Page 37: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/37.jpg)
Typical Motor Control Center
Term Board
Auxiliary Contact
Slide Switch
Slide Switch Connections
(fingers)
Slide Switch Connections
(fingers)
![Page 38: ACADs (08-006) Covered Keywords Switchgear, motor control, ground, circuit breaker. Description Supporting Material 1.3.7.21.3.7.42.1.14.15.1.1.1.1.15.1.1.2.1.3.](https://reader030.fdocuments.us/reader030/viewer/2022032517/56649cc05503460f94987507/html5/thumbnails/38.jpg)
Safety Equipment
Voltage check
‘Rocket’