Eaton SPS-C32 Voltage Circuit Manuals

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Eaton SPS-C32 User Manual (58 pages)

Low voltage power circuit breakers for use in ANSI/UL applications

Brand: Eaton | Category: Circuit breakers | Size: 11 MB

Table of Contents
2
Purpose
5
Safety
5
Section 1: Introduction
5
General Information
5
Safety Features
6
Safety Practices
6
Figure 1. Family of Magnum PXR Low Voltage Power Circuit Breakers (800-6000 A)
6
Figure 2. Typical Magnum PXR Nameplate
6
Table 1 . Magnum PXR Ratings at 240, 480, 600 V
7
Table 2. Power Defense SB Ratings at 240, 480, and 600V
7
Qualified Personnel
8
Other Publications and Documentation
8
Section 2: Receiving, Handling, and Installation
8
General Information
8
Suggested Tools
8
Unpacking the Circuit Breaker
8
Figure 3. Typical Magnum PXR and PD-SB Designation Example
8
Lifting Circuit Breaker
9
Figure 4. Shipping Clamps for Drawout Circuit Breaker
9
Figure 5 . Magnum Circuit Breaker with Lifting Yoke Attached (Magnum DS Shown)
9
Circuit Breaker Inspection
10
Table 3. Basic Circuit Breaker Weights (Lifting and Support Reference Only)
10
Installing the Drawout Circuit Breaker
11
Figure 6. One Side of Drawout Circuit Breaker Properly Seated on Extension Rail
11
Figure 7. Cassette Rejection Interlock Pin Positioning/Installation
11
Figure 8. REMOVE Position
12
Figure 9. DISCONNECT Position
12
Figure 10. TEST Position
13
Figure 11. CONNECT Position
13
Levering Circuit Breaker
14
Fixed Circuit Breaker
14
Figure 12. Cassette Label Showing DISCONNECTED, TEST, and CONNECTED Position of Recessed Cover
14
Figure 13. Levering Position Indication
14
Circuit Breaker Operation
15
Section 3: Circuit Breaker Description and Operation
15
Introduction
15
Figure 14. Typical Fixed Magnum PXR Circuit Breaker
15
Figure 15 . Typical PXR Drawout Circuit Breaker Features (Front and Rear Views)
16
Figure 16 . Typical PXR Fixed Circuit Breaker Features (Front and Rear Views)
16
Figure 17 . Typical Double-Wide Standard Frame Circuit Breaker Features (Front and Rear View)
17
Figure 18 . Magnum PXR and PD-SB Drawout Circuit Breaker
18
Basic Circuit Breaker Assembly
19
Pole Units
19
Figure 19 . Typical Magnum and PD-SB Construction (Right Side View)
19
Figure 20 . Features of Magnum and PD-SB Moving Conductor Assembly
19
Figure 21. Narrow Frame (8-Finger) Moving Conductor Assembly
20
Figure 22. Standard Frame (12-Finger) Moving Conductor Assembly
20
Figure 23 . General Partial Cross-Sectional View
20
Operating Mechanism
21
Figure 24 . Typical Electrically Operated Drawout MPS Circuit Breaker with Front Cover Removed
21
Figure 25. Circuit Breaker Closing Springs Being Manually Charged (Magnum DS Shown)
21
Arc Chambers
22
Figure 26. Electrical Motor Operator to Charge Closing Spring
22
Figure 27. Cross Section of Conductor and Arc Control System
22
Figure 28. Integral Arc Runner Viewed from Top of Arc Chamber (Arc Chute Removed, Circuit Breaker Closed)
22
Electronic Tripping System
23
Figure 29. Arc Plate Assembly
23
Figure 30. Pictorial Diagram of Typical Current Sensing, Processing, and Tripping System
23
Table 4. Magnum PXR and PD-SB Trip Units
24
Figure 31. PXR 25 Programmable Trip Unit Installed in Magnum PXR Circuit Breaker
24
Figure 32. Narrow Frame Current Sensors Shown with Cover Plate Removed
25
Figure 33 . Line and Load-Side Voltage Taps for PXR Circuit Breakers
25
Accessory Devices
26
Table 5. Shunt Trip Ratings
26
Table 6. Continuous Duty Shunt Trip
26
Table 7. Spring Release Ratings
26
Figure 34. Through-The-Window Electrical Accessories
26
Figure 35. Shunt Trip with Cutoff Switch
26
Figure 36. Shunt Trip Switch Installed
26
Table 8. Undervoltage Release
27
Table 9 . Auxiliary Switch, Overcurrent Trip Switch
27
Figure 37. Spring Release with Optional Latch Switch
27
Figure 38. Undervoltage Release
27
Figure 39. Shunt Trip, Spring Release, and Undervoltage Release Installed
27
Table 10 . Compact Motor Operator
28
Figure 40. Auxiliary Switch (Form C)
28
Figure 41. Mechanical Trip Indicator with Associated Overcurrent Trip Switch
28
Figure 42. Motor Operator Kit
28
Figure 43. Motor Operator Installed in a Standard Frame Circuit Breaker
29
Figure 44. Cover Mounted Key Lock and Operations Counter
29
Figure 45. Cassette-Mounted Key Lock
29
Figure 46 . OPEN-CLOSE Pushbutton Lockable Cover Plate (Magnum DS Shown)
30
Figure 47. Typical Safety Shutters in CLOSED Position
30
Figure 48. Typical Safety Shutters in OPEN Position
30
Figure 49. Cell Switch (Drawout Position Indicator) Unmounted
30
Figure 50. Cell Switches Mounted on Cassette
30
Figure 51. Door Escutcheon and Gasket
31
Figure 52. IP55 Waterproof Cover (Magnum DS Shown)
31
Figure 53. Cassette-Mounted Two-Way Cable Interlock (Magnum DS Shown)
31
Section 4: Master Connection Diagrams
32
Secondary Contacts and Connection Diagrams
32
Figure 54 . Secondary Connector Protective Hood
32
Figure 55. Top View Secondary Connectors
32
Figure 56. Typical Cassette-Mounted Secondary Wiring
33
Figure 57. AMP Secondary Wiring Removal Tool
33
Figure 58 . Magnum PXR and PD-SB 3-Pole Wiring Diagram (PXR20/25)
34
Figure 59 . Magnum PXR and PD-SB 4-Pole Wiring Diagram (PXR20/25)
35
Figure 60 . Magnum PXR and PD-SB 6-Pole ABCABC Wiring Diagram (PXR20/25)
36
Figure 61 . Magnum PXR and PD-SB 8-Pole NABCNABC Wiring Diagram (PXR20/25)
37
Figure 62 . PXR and PD-SB 6/8 Pole Wiring Diagram (PXR20/25) for Alternate Phasing Configurations
38
Figure 63. Magnum PXR and PD-SB Accessory Wiring Diagrams (PXR 20/25)
39
Section 5: Drawout Circuit Breaker and Cassette
40
General
40
Figure 64. MPS/SPS Drawout Circuit Breaker in Cassette
40
Figure 65. MPS/SPS Drawout Circuit Breaker with Automatic Primary Disconnects
40
Figure 66. Typical Drawout Cassette Features
41
Drawout Circuit Breaker Dimensions
42
Drawout Cassette Dimensions
42
Figure 67. Typical Narrow Frame Cassette (Horizontal Terminals)
42
Figure 68. Typical Basic Cassette (Vertical Terminals)
42
Figure 69. Typical Basic Cassette (Without Stabs)
42
Figure 70 . Typical Universal Cassette, Four-Pole (Flat Terminal Pads)
42
Section 6: Fixed Circuit Breaker
43
General
43
Fixed Circuit Breaker Dimensions
43
Section 7: Importance of Maintenance
43
Safety Precautions
43
Figure 71. Fixed Narrow Frame Circuit Breaker with Available Vertical Adapter Shown
43
General Cleaning Recommendations
44
Functional Tests
44
Figure 72. CLOSED and OPEN Indicators
44
Procedure
45
Figure 73. Accessory Viewing Windows
45
Figure 74. Power Xpert Protection Manager (PXPM) Software
45
Maintenance Schedule
46
Table 11. Normal Operating Conditions
46
Table 12. Normal Maintenance Frequency
46
Table 13. Increased Frequency Conditions
46
Table 14. Altitude Rating Factors
46
Inspection Procedures
47
Table 15. Pre-Inspection Conditions
47
Figure 75. Top Rear View of Circuit Breaker with One Arc Chute Removed
47
Figure 76. Bottom View of Arc Chute
47
Table 16 . Pre-Inspection Conditions
48
Figure 77. Primary Contacts with Circuit Breaker Open (Not Used for Contact Wear Inspection)
48
Figure 78. Contact Inspection Area with Circuit Breaker Open
48
Table 17 . Pre-Inspection Conditions
49
Table 18 . Magnum and PD-SB Breaker Torque List
49
Table 19 . Greases Used on Magnum and PD-SB
49
Figure 79. Use of Contact Wear Indicator with Circuit Breaker Closed
49
Figure 80 . Magnum PXR Breaker Mechanism Lubrication
50
Figure 81 . Magnum PXR Pole Shaft Lubrication
50
Figure 82 . Magnum PXR Drawout System Lubrication (Not Applicable to Fixed-Mount Breakers)
50
Figure 83 . Magnum PXR Drawout System Lubrication
50
Figure 84 . Magnum PXR Charging Handle and Gear Lubrication
50
Figure 85 . Magnum PXR Pole Shaft and TA Spring Lubrication
50
Table 20 . Pre-Inspection Conditions
51
Table 21 . Pre-Inspection Conditions
51
Figure 86. Primary Disconnects
51
Figure 87. Breaker Secondary
51
Figure 88. Cassette Secondary
51
Table 22 . Pre-Inspection Conditions
52
Figure 89. Charged and Opened
52
Figure 90. Push to Close
52
Figure 91. Levering-In Door in Position between Disconnect and Test
53
Troubleshooting
54
Table 23. Spring Charging
54
Table 24. Contact Closing
54
Table 25. Contact Opening
55
Table 26. Levering-In/-Out (Drawout Applications Only)
55
Section 8: Renewal Parts
58
General
58
Disclaimer of Warranties and Limitation of Liability
58

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