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Eaton DSLII Series Manuals
Manuals and User Guides for Eaton DSLII Series. We have
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Eaton DSLII Series manual available for free PDF download: Instructions For Installation, Operation And Maintenance
Eaton DSLII Series Instructions For Installation, Operation And Maintenance (64 pages)
Low Voltage Power Circuit Breakers
Brand:
Eaton
| Category:
Circuit breakers
| Size: 11.34 MB
Table of Contents
Table of Contents
3
Section 1: Introduction
7
General Information
7
Safety Features
8
Safety Practices
8
Qualified Personnel
9
Other Publications and Documentation
9
Section 2: Receiving, Handling and Installation
11
General Information
11
Unpacking Circuit Breaker
11
2-2.1 Storing Circuit Breaker
11
Lifting Circuit Breaker
11
Breaker Inspection
12
Levering Circuit Breaker
13
Drawout Dummy Element
14
Fixed Circuit Breaker
14
Section 3: Equipment Description
15
Type DSII Circuit Breaker
15
Type DSLII (Limiter) Circuit Breaker
16
Basic Breaker Assembly
17
Pole Units
17
3-4.1 Primary Moving Contact Assembly
17
3-4.2 Primary Stationary Contact Assembly
18
Interphase Barriers
18
ION Arc Chutes (Interrupter Assemblies)
20
Electronic Tripping System
20
Electronic Trip Unit
22
Sensors
22
Trip Actuator
22
Operating Mechanism
23
3-8.1 Manually Operated Circuit Breaker
23
3-8.2 Power Operated Circuit Breaker
24
Movable Primary and Secondary Contacts
24
Standard and Optional Devices
25
3-10.1 Motor Cut-Off Switch (LS)
25
3-10.2 Spring Release Device (SRD)
25
3-10.3 Anti-Pump Relay (Y)
25
3-10.4 Shunt Trip Attachment (STA)
25
3-10.5 Latch Check Switch
26
3-10.6 Auxiliary Switch
26
3-10.7 Undervoltage Trip Attachment (UVTA)
26
3-10.8 Overcurrent Trip Switch
27
Miscellaneous Details
27
3-11.1 Interference Interlock
27
3-11.2 Ground Contact
28
3-11.3 Close Bar Guard
28
3-11.4 Operation Counter
28
Section 4: Basic Operating Instructions
29
Manual Circuit Breaker Operation
29
4-1.1 Spring Charge Mechanism for Manually Operated Breakers
29
Power Circuit Breaker Operation
30
4-2.1 Spring Charge Mechanism for Power Operated Breakers
31
4-2.2 Power Operation
35
Closing Mechanism
35
Opening (Tripping) Mechanism
37
Mechanical Interlocking System Description
40
4-5.1 Remove Position
40
4-5.2 Disconnect Position
40
4-5.3 Test Position
40
4-5.4 Connect Position
42
4-5.5 Mechanical Interlocking System Operation
42
4-5.6 Spring Discharge Interlock
44
4-5.7 Connected Breaker Manual Close Interlock
44
4-5.8 Electric Lockout Equipped Breaker
44
4-5.9 Closed Breaker Interlock
44
4-5.10 Padlocking Provision
46
DSLII Circuit Breaker and Fuse Truck
47
4-6.1 DSLII Current Limiters
48
4-6.2 Blown Limiter Indicator
48
4-6.3 Fuse Truck
48
4-6.4 Fuse Truck Installation and Use
49
4-6.5 Fuse Replacement
49
4-6.6 Blown Fuse Indicator
49
Section 5: Inspection and Maintenance
51
General
51
General Cleaning Recommendations
51
When to Inspect
51
What to Inspect
51
5-4.1 DSII-308 through DSII-620 Inspection
52
5-4.2 DSII-632 and DSII-840/850 Inspection
52
5-4.3 DSII-308 Contact Replacement
52
5-4.4 DSII-516 through DSII-840/850 Contact Replacement
52
5-4.5 Arc Chutes
53
DSII-308 Contacts and Adjustments
53
5-4.6 Power Operated Mechanism
54
Factory Adjustments
54
DSII-516/620 Contacts and Adjustments
54
DSII-632 Contacts and Adjustments
55
5-5.1 Trip Latch Overlap Adjustment
56
5-5.2 Breaker Open Position Stop Adjustment (DSII-632 Only)
56
DSII-840/850 Contacts and Adjustments
56
Shunt Trip Details Showing Trip Shaft Adjustment
57
Open Position Stop and Anti-Rebound Latch
57
5-5.3 Moving Contact Adjustment
58
5-5.4 Levering Mechanism Adjustment
58
Levering Mechanism
58
Lubrication
59
5-6.1 Lubrication Frequency
59
5-6.2 Lubrication Location
59
Left Side of Mechanism Lubrication Points
60
Shunt Trip Device Lubrication
60
Spring Release Device Lubrication
60
SECTION 6: Renewal PARTS
62
General
62
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