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Eaton MVS User Manual

Eaton MVS
28 pages
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Description Page
Introduction .............................2
Receiving, handling, and storage ............4
Installation .............................. 5
Operation .............................. 16
Maintenance ........................... 17
Duplex switchgear configuration ............ 23
Motor operation .........................23
Electromechanical stored energy release
(shunt trip) ..........................25
MVS switchgear bolt tightness for
bus connections and connections to
switch terminal pads .................. 28
Common renewal parts ................... 28
Effective May 2011
Supersedes April 2006
Instructional Booklet IB02102006E
Type MVS (previously WLI)
metal-enclosed switchgear
4.76 kV, 15.0 kV, 27.0 kV, and 38.0 kV
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Eaton MVS Specifications

General IconGeneral
ModelMVS
Frequency50/60 Hz
MonitoringOptional
CommunicationOptional: Modbus
DimensionsVaries depending on configuration
WeightVaries depending on configuration

Summary

Safety Information

Safety Features

Details built-in safety mechanisms of the switchgear.

Safety Practices

Outlines essential precautions for safe operation.

Installation Procedures

Joining MVS Enclosures

Steps for connecting multiple switchgear units.

Electrical Connections

Connection to Transformer

Physical and electrical connection to transformers.

Cable Management

Customer Power Cable Connections

Details for connecting incoming/outgoing power cables.

Cable Support and Lacing

Guidance on securing and lashing cables to prevent damage.

Field Insulation Procedures

Taping Electrical Connections

Step-by-step guide for field taping electrical connections.

Assembly and Pre-Startup

Switch Inspection Before Startup

Critical checks before energizing the switch.

Operation and Fuse Replacement

Mechanical Safety Interlocks

Explains switch and door interlocks.

Maintenance and Alignment

Inspection Schedule and Procedure

When and how to inspect the switch.

Switch Adjustments

Closed-Open-Stop Adjustment

Adjusting switch open/closed positions.

Switch Adjustments

Main Blade Alignment

Procedures for aligning main blades correctly.

Replacement Procedures

Main Blade and Break Jaw Replacement

Replacing key subassemblies like blades and jaws.

Duplex Switchgear and Motor Operation

Motor-Operated Switch Features

Details on motor operation and safety interlocking.

Electromechanical Stored Energy Release

Charging and Operating the Spring

Steps to charge and operate the spring mechanism.

Switch Interlock and Adjustments

Blade and Arc Chute Alignment

Procedures for aligning blades and arc chutes.

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