September 1983
●
New Issue
Printed in USA
Oil Switches
Types VR, VCR, VLR
Maintenance Instructions
1
S260-20-9
Service Information
Figure 1.
Type VR, VCR and VLR electronically controlled three phase oil switch.
These instructions do not claim to cover all details or variations in the equipment, procedure, or process described, nor to provide
directions for meeting every contingency during installation, operation, or maintenance. When additional information is desired to
satisfy a problem not covered sufficiently for the user’s purpose, please contact your Cooper Power Systems sales engineer.
CAUTION:
Do not energize this
equipment out of oil.
!
CONTENTS
Introduction . . . . . . . . . . . . . . . . .
1
General Description . . . . . . . . . .
1
Description of Operation . . . . . .
3
Standard Actuator . . . . . . . . . . . .
3
Quick-Close Actuator . . . . . . . . .
4
Ratings and Specifications . . . .
5
Maintenance . . . . . . . . . . . . . . . .
5
Frequency of Maintenance . . . . .
5
Periodic Maintenance Inspection .
5
Operating Instructions . . . . . . . .
6
Electrical Operation . . . . . . . . .
6
Standard Actuator . . . . . . . . .
6
Quick-Close Actuator . . . . . . .
6
Manual Operation . . . . . . . . .
6
To Close Switch . . . . . . . . .
6
To open Switch . . . . . . . . . .
6
Oil Condition . . . . . . . . . . . . . .
6
Insulation Level Withstand Tests
6
Shop Repair Procedures . . . . .
7
Bushings . . . . . . . . . . . . . . . . .
7
Contacts . . . . . . . . . . . . . . . . .
7
Type VR and VCR Switches .
8
Type VLR Switches . . . . . . . .
11
Actuator Mechanism . . . . . . . .
13
Electrical Components . . . . .
13
Trip Solenoid . . . . . . . . . . . .
14
Motor Replacement . . . . . . .
15
Speed Reducer . . . . . . . . . .
15
Service Parts List .....................
17
Tank and Head Assembly Parts
(Figure 39) ..........................
18
Type VR Contact Assembly Parts
(Figure 40) ..........................
20
Type VCR Contact Assembly Parts
(Figure 41) ..........................
21
Type VLR Contact Assembly Parts
(Figure 42) ..........................
22
Actuator Mechanism Parts
(Figure 43) ..........................
24
Quick-Close Mechanism Parts
(Figure 44) ..........................
26
