Eaton DS-632 series - Section 12 - Inspection and Maintenance; 12.0 GENERAL; 12.1.1 When to Inspect; 12.1.2 What to Inspect

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Instruction Booklet IB 33-790-1J

Effective November 2010

Instructions for Low Voltage Power

Circuit Breakers Types DS and DSL

EATON CORPORATION www.eaton.com

Fig. 5b View Showing Controls on the Panel (Post 1988).

DIGITRIP RMS TRIP UNIT

NAMEPLATE

EMERGENCY

CHARGING

HANDLE

OPEN-CLOSE

INDICATOR

CLOSE BAR

SPRING CHARGE

INDICATOR

TRIP PLATE

PADLOCK PLATE

DRAWOUT UNIT

POSITION INDICATOR

SHUTTER

Main Page

Table of Contents3
Introduction11
Ty Pe DS Breaker Ratings11
General Description12
- Basic Breaker Assembly12
- Arc Chutes12
- Optional Components12
- Accessories12
DSL Breakers - Current Limiting Ty Pe Breakers and Combinations12
- Special Circuit Breakers: DS-206S and DS-416S13
Safety Features14
Recommended Safety Practices15
Section 1 -Receiving, Handling and Storing16
Receiving and Handling16
Storing16
Weights: Circuit Breakers and Fuse Trucks16
Approximate Weights16
Section 2 -First Removal of Breaker from Compartment17
General17
Setting the Rails in Front of the Compartment17
Removing Shipping Brace17
- The Type DS Low Voltage Power Circuit Breaker Is Shipped Inside Its Own Compartment17
Lifting the Breaker18
- Levering Device Crank Handle Installed18
- Use of Breaker Lifting Adapter18
View Showing Controls on the Panel (Pre 1988)19
Section 3 -Preliminary Examination of Circuit Breaker19
General19
View Showing Controls on the Panel (Post 1988)20
Left Side of Breaker with Levering Device Arm in REMOVE Position21
DS 416 Breaker with Front Panel Removed21
- Right Side Showing Levering Device Arm in TEST Position21
- Rear View Showing Levering Device Arm in CONNECT Position21
Independent Manual and Power-Operated Breakers22
- Closing Facilities22
- Tripping Facilities22
Tr Ip Actuator22
Levering Device22
Undervoltage Tr Ip Device22
Section 4 -Basic Operating Instructions23
General23
Levering Device23
Charge the Closing Springs23
- Method Used to Press Trip Plate and Lower Shutter with One Hand, Preparatory to Inserting Crank23
Close the Breaker24
Open the Breaker24
Place the Breaker in the Test Position25
Place the Breaker in the Connect Position25
Remove the Breaker for Final Inspection25
Final Inspection25
Amptector Trip Settings25
Place the Breaker in Service25
Rear of Power-Operated Mechanism26
- Power-Operated Mechanism27
Section 5 -Description and Explanation of Operation26
General26
The Operating Mechanism and How It Works26
Explanation of Spring-Charging Mechanism for Power-Operated Breakers27
Arrangement of the Principal Parts of a Power Operated Mechanism28
Power Operation28
Front View Showing Major Parts of the Crank Shaft Assembly29
Power-Operated Spring-Charge Details30
Crank Shaft Assembly of Power-Operated Mechanism31
Standard Schematic and Connection Diagrams for Power-Operated Breakers32
Principal Parts in a Manually Charged Spring Operated Mechanism33
Spring-Charging Mechanism on Manual Operated Breakers34
Manual-Operated Mechanisms34
Explanation of Spring-Charging Mechanism for Manually-O Perated Breakers34
These Sketches Show the Four Basic Positions of Breaker and Linkage35
Circuit Breaker Closing Mechanism36
Circuit Breaker Tr Ipping or Opening Mechanism37
Miscellaneous Details38
DS-632 Breaker with Front Panel Removed38
Front View Showing Close Bar Guard39
Rear View Showing the Seismic Positioner39
- Motor Cut-Off Switch and Other Details Not Visible from above39
Mechanical Interlocking, Description and Explanation of Operation40
Drawout Unit Position Indicator40
The REMOVE Position41
The DISCONNECT Position41
The TEST Position41
The CONNECT Position42
Detailed Explanation of Mechanical Interlock System42
Spring Discharge Interlock43
- Relation of Shutter, Interlock Cam, and Levering Device Arms44
Connected Breaker Manual Close Interlock45
Close-Release Interlock to Discharge Springs on Levering out of Compartment and Conn. Position no Manual Close Interlock45
Breaker Equipped for Electric Lockout46
Close Interlock to Prevent Efforts to Close a Breaker that Is Already Closed46
Closed Breaker Interlock47
Padlocking Provision47
Section 6 -Circuit Breaker Pole Units, Description and Operation48
General48
Moving Contact Sub-Assemblies48
Three-Pole Assembly of DS-206 Pole Units on Frame48
Three-Pole Assembly of DS-416 and DS-420 Pole Units on Frame49
Stationary Contact Sub-Assemblies50
Three-Pole Assembly of DS-632 Pole Units on Frame50
- Three Pole Assembly of DS-840 Pole Units on Frame51
Type DS-206 Pole Unit Assembly - Front View52
Type DS-206 Pole Unit Assembly - Rear View53
Type DS-416 Pole Unit Assembly - Front View54
Type DS-416 Pole Unit Assembly - Rear View54
Type DS-420 Pole Unit Assembly - Front View54
Type DS-420 Pole Unit Assembly - Rear View54
Type DS-632 Pole Unit Assembly - Front View55
Type DS-632 Pole Unit Assembly - Rear View55
Type DS-840 Pole Unit Assembly - Front View55
Type DS-840 Pole Unit Assembly - Rear View55
Moving and Stationary Contact Details DS-20656
Moving and Stationary Contact Details DS-41657
Moving and Stationary Contact Details DS-42058
Moving Contact Details DS-63259
Stationary Contact Details DS-63260
Moving Contact Details DS-84061
Stationary Contact Details DS-84062
Breaker with Barrier Removed to Show Mounting of Arc Chutes63
DS-206 Arc Chute with Details63
Section 7 -Arc Chute63
General63
DS-416/420 Arc Chute with Details63
DS-632 Arc Chute with Details63
DS-840 Arc Chute with Details64
Section 8 -Circuit Breaker Automatic Tr Ipping System65
General65
The Amptector II-A Trip Unit66
Optional Amptector I-A Solid-State Trip Unit67
The Amptector I-A Trip Unit67
Ground Fault Protection71
Making Current Release (Discriminator)71
Servicing of Amptector Trip Unit72
Actuator72
Sensors72
DS-840 Breaker Rear View Showing Sensors73
Optional Accessories73
Frame Size and Sensor Ratings73
Undervoltage Trip Attachment74
Overcurrent Trip Switch74
High Load Switch75
High Load Switch (Available with Amptector L-A Only)75
Latch Check Switch Operation76
Auxiliary Switch Construction Details76
Latch Check Switch76
Auxiliary Switches76
Amptector Trip Unit Test Kit (for Amptector I-A and II-A)77
Amptector Trip Unit Test Kit77
General77
Description77
Operation77
Tes T Kit in Operation78
Sensor and Limiter Ratings79
DSL-206 Breaker Side View79
Section 9 -DSL Circuit Breakers and Fuse Trucks79
General79
DSL Current Limiters79
Blown Limiter Indicator79
DSL-206 Breaker Front View (DSL-416 Similar)80
DSL-416 Breaker Side View80
Fuse Trucks80
Installing Fuse Trucks80
Blown Limiter Indicator81
DS-3200 Fuse Truck Front View81
Replacing Fuses81
Blown Fuse Indicator81
DS-3200 Fuse Truck with Front Cover Removed82
DS-4000 Fuse Truck Side View82
Section 10 -Fixed Breakers83
General83
Section 11 -Drawout Dummy Elements83
Section 12 -Inspection and Maintenance84
General84
When to Inspect85
What to Inspect86
DS-206, DS-206S, DS-416, DS-416S, and DS-42087
DS-632 and DS-84088
Replacement of Contacts88
DS-416, DS-416S, DS-420, DS-632, and DS-84088
Arc Chutes88
General Inspection88
Power Operated Mechanisms88
Factory Adjustments89
Trip Latch Overlap90
Breaker Open Position Stop (DS-632 Only)90
Moving Contact Adjustment90
Levering Mechanism90
Lubrication91
Frequency91
Location and Lubricant91
Section 13 -Renewal Parts92
General92
Identifying Parts for DS-416S and DS-206S92
DS-416S Parts92
DS-206S Parts92

Eaton DS-632 series - Section 12 - Inspection and Maintenance; 12.0 GENERAL; 12.1.1 When to Inspect; 12.1.2 What to Inspect

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