CONTENTS
GENERAL......................................................................1
ELECTRICAL RATINGS ...............................................1
INSTALLATION.............................................................2
Step 1 Mount Switch ...............................................2
Step 2 Lead Training ...............................................3
Step 3 Index Plate....................................................3
Step 4 Markings .......................................................4
OPERATING INSTRUCTIONS......................................4
GENERAL
Cooper Power Systems’ RTE
®
sectionalizing switches
are used in underground residential applications with
loop feed, and in three-phase commercial industrial
installations where the ability to use an alternative source
of power is necessary. They can also be used to switch
on and off a primary cable tap on a transformer.
RTE sectionalizing switches rotate 360° in either
direction for alternate source selection. A spring-loaded
activating mechanism ensures quick loadbreak action
and positive contact engagement through all positions.
The under-oil switch can be installed near the
transformer core/coil assembly, thus minimizing cable
capacitance. With cable capacitance minimized and all
three phases switched simultaneously, the likelihood of
ferroresonance is greatly reduced. Sidewall or cover
mounted switches are hotstick operable and available in
six different blade configurations for one, two or three
pole connections.
ELECTRICAL RATINGS
TABLE 1
Voltage Ratings and Characteristics
TABLE 2
Current Ratings and Characteristics
Loadbreak/Loadmake tested per ANSI/IEEE C37.71.
OEM Equipment
Sectionalizing Switch
Installation Instructions
S800-64-1
Service Information
January 1994 • New Issue • © 1993 Cooper Power Systems, Inc.
Printed in U.S.A.
1
Description
15 kV
25 kV
35 kV
Standard Voltage Class
15
25
35
Maximum Rating Phase-to-Phase
15
25
35
Maximum Rating Phase-to-Ground
8.3
15.2
21.1
ac 60 Hz 1 Minute Withstand
34
40
50
BIL and Full Wave Crest
95
125
150
CAUTION: Sectionalizing Switch should
be installed only by personnel familiar
with good safety practice and the handling of
high-voltage electrical equipment.
Figure 1.
Line illustration of Sectionalizing Switch.
Description
15 kV
25 kV
35 kV
Continuous
600
300
200
Momentary, 10 Cyc. Symmetrical
10,000
10,000
10,000
Two Second, Symmetrical
10,000
10,000
10,000
3-Shot Make and Latch, Symmetrical
10,000
10,000
6,000
Loadbreak/Loadmake
20 operations
600
300
200
30 operations
300
150
100
10 operations
100
50
25
No. Mechanical Switching Operations
Over
Over
Over
1000
1000
1000
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.
TANK WALL
SWITCH
!
