RLSwitcher®

Switch reactors with confidence and certainty

Switching reactors 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.

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RLSwitcher®

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The Southern States RLSwitcher® reactor switching device is the first product designed specifically for reactor switching of medium high voltage shunt reactors.

Key features of this product include:

  • Special nozzle/contact design resulting in very low probability of re-ignitions
  • Reduced turn-to-turn stress on reactor
  • Increased reactor life
  • Patented Interrupter minimizes probability and magnitude of re-ignitions
  • Reduced Turn-to-Turn voltage stress on reactor windings
  • Simplified design improves reliability
  • 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
  • Compact design can fit is tight spaces
  • Makes and breaks circuit in SF6
  • Single mechanism spring-open, spring-close mechanism provides reliable long-life performance
  • Fully assembled and tested at the factory
  • Ships with minimum dis-assembly to minimize installation time

Reactor Switching Ratings

Maximum Voltage Reactor Switching Current Shunt Reactor Rating
38 kV 1600 A 105 Mvar
72.5 kV 539 A 67 Mvar

 

Additional Ratings

Maximum Voltage Rating (kV) 38 72.5
Continuous Current Rating 1600 A 1200 A
Power Frequency 50/60 Hz 50/60 Hz
BIL (kV) 200 350
Short Circuit Breaking Current 25 kA 36 kA
Interrupting Time 3 cycles 3 cycles
Short-Time Withstand 25 kA (3 sec) 40 kA (3 sec)
Short-Circuit Making 25 kA 40 kA
Peak Withstand 62.5 kA 104 kA
Insulator Design Porcelain Porcelain
Ambient Temperature Range -40º C to +50º C -30º C to +50º C

Reactor Switching Ratings

Maximum Voltage Reactor Switching Current Shunt Reactor Rating
245 kV 630 A 267 Mvar
362 kV 630 A 395 Mvar
550 kV 440 A 400 Mvar

 

Additional Ratings

Maximum Voltage Rating (kV) 245 362 550
Continuous Current Rating 630 A 630 A 440 A
Power Frequency 60 Hz 60 Hz 60 Hz
BIL (kV) 900 1300 1800
Short Circuit Breaking Current NA NA NA
Interrupting Time 3 cycles 3 cycles 3 cycles
Short-Time Withstand 40 kA (3 sec), 63 kA (18 cycles)
Short-Circuit Making 63 kA 63 kA 63 kA
Peak Withstand 164 kA 164 kA 164 kA
Insulator Design Porcelain Composite Composite
Ambient Temperature Range -30º C to +50º C -40º C to +50º C -40º C to +50º C

Consult factory for 123kV-170kV applications

Reactor Switching Ratings

Maximum Voltage Rating (kV)

Minimum Reactor Switching Current (A)

Maximum Reactor Switching Current
15.5  1000  2000 A
15.5  1000 
  3000 A * 
38  500  1600 A

 

Additional Ratings

Maximum Voltage Rating (kV)15.538
Continuous Current Rating (A) 2000 | 3000 1600
Power Frequency (Hz) 50/60 50/60
Ligthting Impulse Withstand 200 200
Short-time Withstand Current (kA/sec) 40/2 40/2
Peak Withstand Current (kA) 108 108
Short Circuit Making Current (kA rms/kA peak) 40/108 40/108
Creepage Distance (mm) 1842 1842
Ambient Temperature Range * -40ºC to +50º C -40º Cto +50º C

 

* At ambient temperatures greater thatn +40º C to +50º C the 15 kV, 3000 A design has a maximum current of 2700 A.

Reactor Switching

Shunt Reactor Switching

Shunt Reactor Switching