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50DH-VE-50AXU-1200A
Eaton 50DH-VE-50AXU-1200A Manuals
Manuals and User Guides for Eaton 50DH-VE-50AXU-1200A. We have
1
Eaton 50DH-VE-50AXU-1200A manual available for free PDF download: Instruction Book
Eaton 50DH-VE-50AXU-1200A Instruction Book (34 pages)
Brand:
Eaton
| Category:
Circuit breakers
| Size: 1.61 MB
Table of Contents
Table of Contents
3
Section 1: Introduction
4
Available 50Dh-Vr Circuit Breakers
4
Section 2: Safe Practices
7
Section 3: Receiving, Handling, and Storage
8
Receiving
8
Handling
8
Approximate Weight by Type
9
Section 4: Description and Operation
14
Vcp-Tr Vacuum Circuit Breaker Element
14
Contact Erosion Indicator
14
Contact Wipe and Stroke
14
Phase Barriers
14
Bushings and Disconnecting Contact Assemblies
14
Stored Energy Mechanism
15
Electrical Position
15
Trip-Free Operation
15
Anti-Pump Feature
15
Latch Check Switch
15
Timing
15
Secondary Disconnect Block
15
Interlocks
15
Racking System Trip and Closing Spring Release Interlocks
17
Cell Position Description
17
50Dh-Vr 50Axu / 75U - Front Racking
17
50Dh-Vr 50Xu / 75Aru - Rear Racking
18
Miscellaneous Items
20
Grounding Contact
20
Section 5: Inspection & Installation
21
Examination for Damage
21
Nameplate Verification
21
Cell Modifications
21
Cell Clearance Modifications
21
Cell Clearance and Shutter Modifications
25
For 50-Dh-50Xu & 75Aru (Rear Racking)
25
Insertion Procedures
26
50-Dh-Vr-50 Axu/75U (Front Racking)
26
50-Dh-Vr-50 Xu/75Aru (Rear Racking)
27
Removal Procedure
27
50-Dh-Vr-50 Axu/75U (Front Racking)
27
Section 6: Inspection & Maintenance
28
Inspection Frequency
28
Inspection and Maintenance Procedures
28
Vacuum Interrupter Integrity Test
29
Contact Erosion
29
Contact Wipe
29
Insulation
30
Insulation Integrity Check
30
Primary Circuit Resistance Check
31
Mechanism Check
31
Lubrication
31
Section 7: Replacement Parts
33
General
33
Ordering Instructions
33
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