These load break switch 33kv are intended for outdoor applications. They can be mounted either horizontally or vertically, and are suitable for electrical operation and power distribution by power distribution cabinet. These 33kv load break switch are tested by our quality controllers on various parameters before delivering them to our valued customer ends. We manufacture these switches with the help of cutting edge technology, which allows us to deliver a flawless product that is sure to be flawless as well. The 33 kV live parts are not directly touchable and hence guarantee protection from hazards.
Contact UsThe 33kv pole mounted 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.
| 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/√3）/（3.25V/√3） |
Special attention should be paid to the voltage sensor, which must be directly fed by the 33KV load break interrupter switch. No additional adjustment circuit can be added to the controller. The voltage signal of the 33kv load break switch into the test line needs to be tested separately. | |
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Building 3, No. 2007 Mingzhu South Rd, Qianshan, Zhuhai, Guangdong, China
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