Circuit Switchers – Vertical (CSV, CSV-CB-DB)
Southern States’ CSV (“candlestick”) circuit switcher, with vertical interrupters, is designed specifically for transformer protection and switching applications where substation space is limited. Unlike traditional general purpose circuit breakers, these devices account for the fast rate-of-rise transient recovery voltage (TRVs) during the interruption of a transformer limited fault.
Additionally, the CSV can be integrated with a Southern States disconnect switch. Most commonly, these designs include an integral double sidebreak “vee” switch (CSV-DB) or an integral center break “vee” switch (CSV-CB). Both can be specified for manual or motor operation.
- Compared to dead tank circuit breakers, circuit switchers have a significantly smaller footprint and utilize significantly less SF6
- Simple, easy erection minimizes field installation time required.
- Structure baseplate can have its hole locations and hole sizes varied when required to fit existing foundation locations and anchor bolt sizes.
- Gas density switch with low pressure alarm and low pressure lockout contacts allow remote gas monitoring.
- Local visual indication of gas system by an SF6 pressure gauge.
- Ships with minimal gas pressure for safety during transportation and in handling during installation.
- Adaptable to a wide variety of installation height requirements and foundation requirements.
- 4 hole NEMA terminal pads are readily reversible to fit specific installation requirements.
- Each unit is completely assembled and tested at the factory with only the disassembly required to meet shipment restrictions being performed
| Maximum kV Rating | 27 | 38 | 38 | 48.3 | 72.5 | 38 | 48.3 | 72.5 |
| BIL (kV) | 150 | 200 | 200 | 250 | 350 | 200 | 250 | 350 |
| Continuous Current | 1200 A & 1600 A | 1200 A | 1200 A, 1600 A, 2000 A, 2500 A | |||||
| Primary Fault Interrupting | 25 kA | 25 kA (31 kA*) | 40 kA | |||||
| Secondary Thru-Fault Interrupting | 4 kA | 4 kA | 4 kA | |||||
| Interrupting Time | 3 cycles | 5 cycles | 3 cycles | |||||
| Power Frequency | 50/60 Hz | 60 Hz | 60 Hz | |||||
| Short-Time Withstand | 25 kA (3 sec) | 40 kA (3 sec) | 40 kA (3 sec) | |||||
| Peak Withstand | 62.5 kA | 104 kA | 104 kA | |||||
| Short-Circuit Making | 25 kA | 40 kA | 40 kA | |||||
| Insulator Design | Porcelain | Composite | Porcelain | |||||
| Ambient Temperature Range | -40º C to +50º C | -40º C to +50º C (-50º C to +50º C optional)** | -30º C to +50º C | |||||
Catalog Flyers & Bulletins
Circuit Switcher Bulletin
CSV 38kV-72.5kV Catalog Flyer
CSV 48.3kV-170kV Catalog Flyer
CSV 245kV Catalog Flyer
CSV-DB-CB 72.5kV-170kV Catalog Flyer
Specification Guides & Drawings
CSV Configuration Overview
CSV Product Specification Guide(Download Word Document)
CSV-CB / CSV-DB Product Specification Guide(Download Word Document)
Outline Drawing CSV 72.5kV 3 cycles 48″ Phase Spacing
Outline Drawing CSV 72.5kV 3 cycle 84″ Phase Spacing
Outline Drawing CSV 72.5kV 5 cycle
Outline Drawing CSV 123kV – 145kV 3 cycle 84″ Phase Spacing
Outline Drawing CSV 123kV – 145kV 3 cycle 96-120″ Phase Spacing
Outline Drawing CSV 170kV 3 Cycle 84″ Phase Spacing
Outline Drawing CSV 170kV 3 cycle 96-120″ Phase Spacing
Outline Drawing CSV 245kV 6 Cycle
General Information
Article – Transformer Switching & Protection Considerations
CSV Product Application Guide Minimum Control Wire Size
Finepoint Circuit Breaker Test & Maintenance Conference 2008 – Local, Series- Connected Interupters Enhance System Reliability
Southern States Vertical Interrupter Circuit Switchers – Versatility Ratings Performance
Standard and Optional Features for 15.5kV-72.5kV 3 cycle CSV
Standard and Optional Features for 15.5kV-72.5kV 5 cycle CSV
Standard features & available optional features for 245kV CSV with 6 cycle spring operating mechanism