Secheron UR46-82S

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Revision changes UR46-81/82S

Document number: SG104148TEN Revision: B01 Issue date: 20.8.2012

4 File: 2-UR46-8S_rev_en.fm

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Secheron

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Default Chapter5
- Table of Contents5
A. Introduction9
General Description9
- Description9
- Uses of the High Speed Circuit-Breaker9
- Main Features10
- Functions10
- Device Identification11
- Routine Tests11
Safety Precautions12
- General Precautions12
- Safety Requirements for the Installation12
- Hazard Information13
- Personnel Use Requirements13
B. Technical Specifications15
Characteristics15
- Breaking Current Parameters15
- Main Circuit15
- Control Circuit15
- Operating Conditions15
Breaker Control16
- Typical Values for the Closing Coils17
Auxiliary Contacts18
- Commutation Diagram18
C. Installation19
Weight and Dimensions19
General Requirements20
Delivery Check and Acceptance20
- Check20
- Transport Damage Procedure20
Handling20
Packing21
Storage21
Disposal21
Tightening Torques21
- General Procedure21
- Standard Tightening Torques21
Mounting22
- Mounting Position22
- Clearances to be Observed in Operating Position22
Low Voltage Connector23
Earth Connection24
High Voltage Connections25
- Recommended Dimensions of the Bars/Cables25
Maximum Current Release (ID) Setting26
- Direct Release26
- Setting Procedure26
Final Visual Inspection and Tests27
Security Check Advised During Operation28
Maintenance29
Required Tools and Consumable29
Periodicity of the Inspections30
Procedure30
Part Replacement Criteria31
Visual Inspection32
- Arc Chute Removal32
- Inspection32
- Arc Chute Refitting32
Detailed Inspection33
- Cleaning the Contact Area33
- Measuring the "W" Contact Wear Dimension33
- Check and Adjustment of the X Clearance34
- Check and Adjustment of the y Clearance35
- Check and Adjustment of the Z Clearance36
- Check and Grease36
Replacement of the Main Contacts and the Pole37
- Removal of the Fixed Contact, the Pole and the Metal Strips37
- Replacement of the Moving Contact38
- Reassemble the Metal Strips, the Pole and the Fixed Contact38
- Refit the Arc Chute39
Replacement of the Fork Unit39
Replacement of the Arc Chute Parts40
- Replacement of De-Ionizing Plates and Baffles40
- Replacement of the Horns40
Replacement of the Closing Device41
Replacement of the Closing Core and the Spring41
Replacement of the Direct Release42
Replacement of the Pusher and the Shock Absorber43
After Sales Services43
Trouble Shooting45
- Procedure45
  - Main Circuit Malfunctions45
  - Auxiliary Switches Malfunctions46
- Adjustments of the Closing Coil47
- Performance Check48
- Replacement of the Auxiliary Contacts49
Wear & Spare Parts Catalogue51
- List Description51
- Recommended Spare Parts51
- After Sales Services51
- Catalogue52
Options57
- Manual Closing Device57
- Over Current Release Indicator & Contact Wear Indicator58
- Manual Tripping Device: M3 Type59
- Indirect Releases60
- Checking and Adjusting the J Clearance62
  - Measurement62
  - Adjustment62
Vertical Mechanical Release63
- Description of the Vertical Mechanical Release63
- Installation - Prerequisites63
- Installation - Adjust the J Clearance63
Varistor64
- Description64
- Trouble Shouting64
- Spare Parts Catalogue64
Direct Release Type de65
- Description65
- Maximum Current Release (ID) Settings65
- Maintenance65
- Spare and Wear Parts Catalogue66
Position Indicator66
- Description66
VEAM Low Voltage Connections67

Secheron UR46-82S - Page 4

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