Southern States LLS-I-2000 User Manual
Title: Southern States –
LLS-I-2000, LLS-II-2000 and LLS-II-3000
Load and Line Switchers
TABLE OF CONTENTS
1.0 SCOPE.......................................................................................................................2
2.0 STANDARDS .............................................................................................................2
3.0 DESIGN REQUIREMENTS........................................................................................2
3.01 Service Conditions................................................................................................. 2
3.02 Ratings................................................................................................................... 2
3.03 Interrupter .............................................................................................................. 3
3.04 SF6 Gas System .................................................................................................... 3
3.05 Operating Mechanism............................................................................................ 3
4.0 DESIGN TESTS.........................................................................................................3
5.0 PRODUCTION TESTS...............................................................................................3
5.01 Mechanical Operations Test .................................................................................. 3
5.02 Leak Test............................................................................................................... 4
5.03 Resistance Test..................................................................................................... 4
5.04 Dielectric Test........................................................................................................ 4
6.0 SPARE PARTS ..........................................................................................................4
7.0 DOCUMENTATION REQUIREMENTS......................................................................4
7.01 Approval Drawings................................................................................................. 4
7.02 Final Drawings....................................................................................................... 4
7.03 Instruction Books ................................................................................................... 4
7.04 Additional Documentation...................................................................................... 5
8.0 SHIPPING and DELIVERY.........................................................................................5
9.0 WARRANTY...............................................................................................................5
10.0 ACCEPTABLE LOAD and LINE SWITCHER.............................................................5
Product Specification Guide
PAGE
Page 1 of 5 Publication No.: PSG-805-080109
Title: Southern States –
LLS-I-2000, LLS-II-2000 and LLS-II-3000
Product Specification Guide
Load and Line Switchers
1.0 SCOPE
This specification covers the design, manufacture, and testing of outdoor load and line
switchers.
2.0 STANDARDS
All outdoor load and line switchers shall be designed, manufactured, assembled, and
tested in accordance with the latest applicable ANSI, NEMA, IEEE, and ASTM
standards and guidelines. If there are any conflicts between the ANSI, NEMA, IEEE, or
ASTM standards and this specification the specification shall govern.
3.0 DESIGN REQUIREMENTS
3.01 Service Conditions
The load and line switcher shall be suitable for outdoor installation in electric
power substations and on transmission line applications under the following
conditions:
3.01.01 Temperature
The load and line switcher shall perform in an ambient temperature
range of -40oC through +50oC.
3.01.02 Altitude
The load and line switcher shall perform at elevations up to 3,300 feet.
3.01.03 Additional Requirements
If any site specific service conditions not covered in sections 3.01.01 and
3.01.02 exist (e.g. extreme cold temperature installation, high altitude
installation, etc.) they will be defined in the quotation request.
3.02 Ratings
Design Characteristics LLS-I-2000 LLS-II-2000 LLS-II-3000
Maximum Voltage 38 kV – 72.5 kV 72.5 kV -170 kV 245 kV 72.5 kV -170 kV 245 kV
Load Breaking Capability 2000 A 2000 A 2000 A 3000 A 2000 A
Line Dropping Capability 300 A 300 A 200 A 300 A 200 A
Loop Splitting Capability 2000 A 2000 A 2000 A 3000 A 3000 A
55 psig at 20ºC
Nominal Operating Pressure 65 psig at 20ºC
Full Load Operations 2000 2000 2000 2000 2000
for 72.5 kV, 65
psig at 20ºC for
123 kV-170 kV
65 psig at 20ºC
55 psig at 20ºC
for 72.5 kV, 65
psig at 20ºC for
123 kV-170 kV
65 psig at 20ºC
Page 2 of 5 Publication No.: PSG-805-080109
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