01880 abb outdoor apparatus cataloge 18-01-11 v28 aw (low res)

Outdoor three-phase load break switches
SECTOS 36kV NXA SF6 load break switch
−−Full options for sectionalizer: current and voltage based
logic
−−ABB patent spiral spring operation mechanism with clear
indication
−−Reliable, stable gas density switch and gauge with
temperature compensation
−−Gas-low locking device/manual locking device as options
−−Completely sealed stainless steel tank
−−Easily upgraded from manual operated to motor operated
and remote control
Technical data
NXA
Nominal operating voltage kV 36
Power frequency withstand voltage, 50 Hz to earth and between phases kV 70
Power frequency withstand voltage, 50 Hz across the isolating distance kV 80
Lightning impulse withstand voltage to earth and between phases kV 170
Lightning impulse withstand voltage across the isolating distance kV 195
Rated power frequency Hz 50/60
Rated normal current A 630
Mainly active load breaking current A 630/400
Number of breaking operations CO n 50/400
Line-charging breaking current A 40
Cable-charging breaking current A 40
Earth fault breaking current A 175
Cable-charging breaking current under earth fault conditions A 80
No-load transformer breaking current A 20
Short-time withstand current (3 sec) kA 12.5
Peak withstand current kA 31.5
Short-circuit making current kA 31.5
Number of making operations CO main switch 31,5 kA (CL E3) n 5
Creepage distance mm 960/1440
Operating temperature celsius -40 … +60
Mechanical endurance (number of close-open operation) main switch n 5000
Filling pressure (+20 Celsius) bar (abs) 1.5
Alarm pressure (+20 Celsius) density switch bar (abs) 1.2
Alarm pressure (+20 Celsius) density gauge bar (abs) 1.2
Alarm pressure (+20 Celsius) low gas lock-out mechanism bar (abs) 1.1
Weight kg 117
Standard tested to: ANSI C37.63 and 37.71 and IEC 60129, IEC 60265-1 and IEC 60694.
18 Outdoor three-phase load break switches | ABB Medium Voltage Products