Tertiary Reactor Switching Device 15.5 kV – 38 kV

Switch Tertiary Shunt Reactors with confidence and certainty!

Switching shunt reactors located on the transformer tertiary can impose a severe duty on the connected system, switching device, and shunt reactor. Due to the relatively small inductive current, the interrupting device attempts to clear at a forced current zero causing current chopping. If the interrupter’s contacts have not separated enough to sustain the system voltage, a re-ignition of the arc will occur. These high magnitude and high frequency re-ignitions can shorten the life of the reactor and the switching device. The Southern States’ RLSwitcher®, with its patented interrupter design, minimizes the probability and magnitude of these harmful re-ignitions.

Southern States RLSwitcher® in Nova Scotia

BENEFITS

Patented Interrupter minimizes probability and magnitude of re-ignitions
Reduced Turn-to-Turn voltage stress on reactor windings
Simplified design improves reliability
Local and remote gas monitoring system
Compact design can fit in tight spaces
High creep composite insulators

SPECIFICATIONS

Maximum Voltage Ratings: 15.5 kV – 38 kV
Reactor Switching Current Rating: 15 kV – 3000 A • 38 kV – 1600 A
Short Time Withstand Current: 40 kA / 2 sec
Peak Withstand Current: 108 kA
Short Circuit Making Current: 40 kA rms sym

KEY ADVANTAGES

Very low probability of re-ignitions, 10X less than with conventional interrupters
Makes and breaks circuit in SF6
Single mechanism spring-open, spring-close provides reliable long-life performance
Ships fully assembled to minimize installation time
Local visual indication of gas pressure provided by color coded temperature compensated gas gauge
Common gas system with gas density switch with low pressure alarm and low pressure lockout for remote status monitoring
Suitable for use where pollution level requirement is “very heavy”