Place of Origin :
Post Date : 22-09-2021
Expiry Date : 19-06-2024
Application Of 33KV SF6 Gas Load Breaker Switch
The Switch Is Made Of A Proven Rugged, Corrosion-resistant Material (304L Stainless Steel Plate For Warships), Ensuring A Long Service Life (30 Years) And A Range Of Operations, With The Characteristics Ideal For On-column Equipment.
Technical Parameters Of 33KV SF6 Gas Load Breaker Switch
Products Type FWX-36
Basic Ratings
Maximum System Voltage 36kV
Rated Continuous Current 630A
Rated Frequency 50/60Hz
Short Time Withstand Current 16kA/1sec
Making And Breaking Capacity
Mainly Active Load Current 630A
Number Of Load-break Operations 400times
Short-circuit Making Current (peak) 40kA
Number Of Making Operations 5 Times
Cable Charging Current 25A
Line Charging Current 1.5A
Closed Loop Circuit Current 630A
Transformer Magnetizing Current 22A
Power Frequency Withstand Current Test
Wet Condition-10sec Ph- Ph-Eth, Across Interrupters 70kV
DryCondition-1min,Ph- Ph, Phase To Earth 95kV
Dry Condition - 1 Min Across Interrupter 110kV
Impulse Withstand Current Test( 1.2 X 50 µs )
Phase To Phase, Phase To Earth 195kV
Across Interrupter 215kV
Other Ratings & Specifications
Internal Arc Test 20kA /0.1 Sec
Arc Extinction Medium SF6 Gas
Insulation Medium SF6 Gas
Creepage Distance (Porcelain) 1055mm
Creepage Distance (Silicon) 1550mm
Dry Arcing Distance =
IP Level 65
Operation Performance
Closing/Opening Time <1sec
Mechanical Operations (Guaranteed) 10000times
Operating Temperature (*Manual Type) -25~+70?
Gas Pressure
Nominal Pressure (MPa, At 20°C) 0.07
Bursting Pressure (MPa) 0.4~0.6
Minimum Gas Pressure (MPa) 0.05
Leakage Rate (cc/ Sec) =0.5%
Voltage Sensors
CT ABC 10P10 5VA 400:05:00
Incoming Side And Outgoing Side Of The Voltage Sensor
6 Voltage Sensor(built-in)
Phase Voltage:(24(36)kV/v3)/(3.25V/v3)
Special Attention Should Be Paid To The Voltage Sensor, Which Must Be Directly Fed By The Switch.
No Additional Adjustment Circuit Can Be Added To The Controller. The Voltage Signal Of The Switch Into The Test Line Needs To Be Tested Separately.
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