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11.0 27 kV R-MAG ELECTRICAL SPECIFICATIONS
Rated Maximum Voltage 27 kV
Voltage Range Factor, K 1.0
Continuous Current (Ratings Available R1-R4) 1250 A
2000 A
Temperature Range -50°C to +55° C
Dielectric Strength
Low Frequency Withstand
Dry 60 Hz 1 minute 60 kV RMS
Wet 60 Hz 10 seconds 50 kV RMS
Full Wave Withstand 125/150 kV BIL
Minimum Creep to Ground (External) 27.5 inches
ANSI Standard Operating Duty O-0.3s-CO-3Min-CO*
Interrupting Time 3.0 cycles (seconds)
Permissible Tripping Delay (Y) 2 seconds
Reclosing Time 0.3 seconds
Interrupting Ratings
Short-Circuit (At Contact Part) RMS R1 12.5 kA Sym / 14.5 kA Asym
Short-Circuit (At Contact Part) RMS R2 16.0 kA Sym / 18.5 kA Asym
Short-Circuit (At Contact Part) RMS R3 20.0 kA Sym / 23.2 kA Asym
Short-Circuit (At Contact Part) RMS R4 25 kA Sym / 29 kA Asym
Close and Latch (Initial Current Loop) Peak 2.6 x Sym interrupting rating
Transient Recovery Voltage (time to peak = 63 μsec) 51 kV peak
Load Current Switching Capability same as continuous current rating
Rated Line Charging Breaking Current 100 A
Rated Cable Charging Breaking Current 400 A
Rated Isolated Capacitor Bank Breaking 400 A
(Definite Purpose)
Rated Back-to-Back Capacitor Bank Breaking 400 A
(Definite Purpose)
Rated Capacitor Bank Inrush Making 20 kA
Rated Capacitor Inrush Frequency 4240 Hz
Mechanical Life
Between Servicing 2,000
No-Load Mechanical 10,000
Continuous Current Switching 10,000
*Operating duty conforms to old ANSI Standard (actual time can be CO-15 Sec-CO).
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