33KV SF6 Gas Load Break Switch
Application of Load Breake Switch33KV
The 33kvpole mounted switchis 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 |
|
|
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) |
|
|
Bursting Pressure (MPa) |
|
|
Minimum Gas Pressure (MPa) |
|
|
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 33KVload 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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Gopoweris one of the initiators and members of the Zhuhai Smart Grid Alliance.
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