Reduce Inrush Current, Voltage Drop, & Increase System Reliability
The Southern States TranSwitcher® is a renewable intertie solution designed specifically for switching and protection of power transformers. Its unique design makes it ideally suited for distribution systems that intertie with solar farms as well as other distributed energy resources. The use of a “soft close” helps to minimize system voltage drops and potential ferro-resonance issues caused by the high inrush currents associated with DER transformer energization. Employing the TranSwitcher® can help utilities increase the life of their transformer as well as maintain system power quality.
Is the inrush mitigation needed for your application?
- Inrush mitigation using closing resistors
- Solid insulation – hydrophobic cycloaliphatic epoxy (HCEP)
- Long life vacuum interrupters
- Optional pole mounting support
- Magnetic actuators on each phase
- 304 stainless steel tank
- High-visibility yellow manual trip and lockout handle
- High visibility position indicator with 360 degree visibility
| Maximum Voltage (kV) | 15.5 | 27 | 38 |
| Continuous Current (A) | 630 | ||
| Rated Frequency (Hz) | 50 / 60 | ||
| Basic Insulation Level (kV) | 110 | 125 | 170 |
| Load Break (A) | 630 | ||
| Optional Symmetrical Interrupting Current (kA) | 16 | 12.5 / 16 * | 16 |
| Asymmetric Peak Making Current (kA) | 40 | 32.5 | 40 |
| 60 Hertz Withstand Voltage (kV): | |||
| Dry, One Minute | 50 | 60 | 70 |
| Wet, Ten Seconds | 45 | 50 | 60 |
| Creepage Distances (mm / in): | |||
| Terminal to Terminal | 673 / 26.5 | 876 / 34.5 | 1160 / 45.7 |
| Lower Terminal to Ground | 679 / 26.7 | 938 / 36.8 | 1500 / 59.0 |
| IEC Pollution Class Terminal to Ground | Very Heavy | ||
| Mechanical Life (Close / Open Operations) | 10,000 | ||
| Ambient Temperature (OC) | -30 to +50 ** | ||
* Consult factory for 16kA rating
** Consult factory for temperatures outside this range
Catalog Flyers & Bulletins
TranSwitcher® 15.5 – 38kV Catalog Flyer
TranSwitcher® Catalog Bulletin
General Information
