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GE PowerVac manual available for free PDF download: Instructions Manual
GE PowerVac Instructions Manual (40 pages)
Vacuum Circuit Breaker with ML-20 Mechanism
Brand:
GE
| Category:
Circuit breakers
| Size: 3.02 MB
Table of Contents
Table of Contents
2
SECTION 1-Introduction
4
Safety
4
Maintenance
4
SECTION 2-Description
5
General
5
Summary Description
5
SECTION 3− − − − Receiving, Handling and Storage
5
Receiving
5
Equipment Packages
5
Inspecting for Damage
5
Filing a Claim
5
Handling
5
Storage
6
SECTION 4-Features
6
Safety Precautions
6
Interlocks
6
Rating Interference Plate
6
Closing Spring Interlock
6
Negative Interlock
7
Positive Interlock Bar
7
Closing Spring Gag Interlock
7
SECTION 5-Operation
8
General
8
Close Spring Charging
8
Closing Operation
8
Opening Operation
9
Trip-Free Operation
9
SECTION 6− − − − Control Circuit
9
SECTION 7− − − − Mechanical Checking and Slow Closing
9
Visual Inspection
9
Closing Spring Charging
9
Closing Spring Gag
10
Slow Closing
10
Gag Plate Removal
10
SECTION 8-Dimensional Checks
11
Primary Contact Erosion
11
ML Wipe Spring Compression
11
Contact Gap
11
Close Coil Plunger Gap
12
Trip Coil Plunger Gap
12
Control Switch Adjustment
12
SECTION 9-Electrical Checks
14
Electrical Operation
14
High Potential Test
14
Primary Circuit
14
Secondary Circuit
14
Primary Circuit Resistance
14
Vacuum Interrupter Integrity Test
14
Insulation Test
15
SECTION 10− − − − Checking and Installing
16
Breakers
16
SECTION 11-Maintenance
17
General
17
Powervac Interrupter
17
Trouble Reporting
17
Service Conditions
17
Fault Interruptions
17
Contact Erosion
17
Transfer Finger Wear
17
Mechanism
17
Primary Insulation Parts
17
Lubrication
18
Recommended Maintenance
18
SECTION 12-Timing
19
SECTION 13-Opening and Closing Speed
20
SECTION 14-Repair and Replacement
21
General
21
Replacement of Interrupter Assemblies
21
Primary Disconnect Fingers
21
Mechanism
21
Control Switches
21
Trip Coil Replacement
21
Closing Coil Replacement
22
Auxiliary Switch Replacement
22
Motor Replacement
22
Y" Relay Replacement
22
SECTION 15-Renewal Parts
23
Ordering Instructions
23
SECTION 16− − − − Mechanical Adjustment
23
General
23
Wipe Adjustment
23
Contact Gap Adjustment
23
Trip Coil Plunger
24
Close Coil Plunger
24
Close Spring Discharge Interlock
24
Negative Interlock
24
Index
36
Trouble Reporting Form
37
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