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PowerVac

GE PowerVac User Manual

40 pages

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DEH 40368 Instructions

PowerVac

Vacuum Circuit Breaker

with ML-20 Mechanism

Table of Contents2
SECTION 1-Introduction4
Safety4
Maintenance4
SECTION 2-Description5
General5
Summary Description5
SECTION 3− − − − Receiving, Handling and Storage5
Receiving5
Equipment Packages5
Inspecting for Damage5
Filing a Claim5
Handling5
Storage6
SECTION 4-Features6
Safety Precautions6
Interlocks6
Rating Interference Plate6
Closing Spring Interlock6
Negative Interlock7
Positive Interlock Bar7
Closing Spring Gag Interlock7
SECTION 5-Operation8
General8
Close Spring Charging8
Closing Operation8
Opening Operation9
Trip-Free Operation9
SECTION 6− − − − Control Circuit9
SECTION 7− − − − Mechanical Checking and Slow Closing9
Visual Inspection9
Closing Spring Charging9
Closing Spring Gag10
Slow Closing10
Gag Plate Removal10
SECTION 8-Dimensional Checks11
Primary Contact Erosion11
ML Wipe Spring Compression11
Contact Gap11
Close Coil Plunger Gap12
Trip Coil Plunger Gap12
Control Switch Adjustment12
SECTION 9-Electrical Checks14
Electrical Operation14
High Potential Test14
Primary Circuit14
Secondary Circuit14
Primary Circuit Resistance14
Vacuum Interrupter Integrity Test14
Insulation Test15
SECTION 10− − − − Checking and Installing16
Breakers16
SECTION 11-Maintenance17
General17
Powervac Interrupter17
Trouble Reporting17
Service Conditions17
Fault Interruptions17
Contact Erosion17
Transfer Finger Wear17
Mechanism17
Primary Insulation Parts17
Lubrication18
Recommended Maintenance18
SECTION 12-Timing19
SECTION 13-Opening and Closing Speed20
SECTION 14-Repair and Replacement21
General21
Replacement of Interrupter Assemblies21
Primary Disconnect Fingers21
Mechanism21
Control Switches21
Trip Coil Replacement21
Closing Coil Replacement22
Auxiliary Switch Replacement22
Motor Replacement22
Y" Relay Replacement22
SECTION 15-Renewal Parts23
Ordering Instructions23
SECTION 16− − − − Mechanical Adjustment23
General23
Wipe Adjustment23
Contact Gap Adjustment23
Trip Coil Plunger24
Close Coil Plunger24
Close Spring Discharge Interlock24
Negative Interlock24
Index36
Trouble Reporting Form37

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GE PowerVac Specifications

General

Brand	GE
Model	PowerVac
Category	Circuit breakers
Language	English

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GE PowerVac User Manual

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GE PowerVac Specifications

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