| Type: | High-voltage |
|---|---|
| Structure: | Three-column Disconnector |
| Installation: | Outdoor High-voltage |
| Operation: | Manual |
| Grounding Mode: | Grounding |
| Movement Mode: | Plug-in Type |
| Samples: |
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| Customization: |
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The sf6 load break switch is used for breaking rated voltage 12/24/40.5kV,rated current 630A,50/60Hz power distribution system, closing load current and over load current of power system,it could separate automatically track sections of power distribution which faults occur. This intelligen product load switch is matched with electroniccontroller which is with the latest technology.The switch has manual,motor,remote operation modes. The electronic controller would be installed inside the stainless steel box, so it could be used in various climate conditions. Besides that,the wire/wireless modem installed inside control box could achieve remote monitoring and controlling. If s easy and convenient for installation the switch on pole, and that could reduce the execution cost.
Standard application condition
Operation condition as follows:
Ambient temperature
Air temperature: max: +50°C, min. -40°C.
Relative humidity: 110%
Altitude 3000m
Wind pressure 700pa (equivalent to wind speed 34m/s)
Seismic intensity: 8 degree
Installation site: No fire disaster, explosion danger, chemical corrosion and frequent strenuous vibration places)
Pollution grade: in class,IV class
Characteristics
SF6 gas insulation
SF6 gas is nontoxic, incombustible, electrical insulating gas, it is with excellent arc extinguishing characteristic.
Bushing diversity
Expect standard porcelain bushing, could provide many schemes, include rubber insulator in epoxy device bushing.
Visible breaking/ closing status
It's easy to see the indicator which marked with color in main contact position from earth, (green- breaking; red-closing). The indicator would connect directly with drive shaft of main contacts to make sure of showing contact status exactly.
Adopt spring energy storage type operation mechanism to make sure of quick opening and closing operation(less than 110ms)
Could achieve local or remote controlling Couldachievelocaloperationwithelectroniccontroller.andalsocouldachieve master control operation with FTU/RTU interface.
Durable switch
The switch is made of durable, anti-corrosion material (304L stainless steel)which is verified, that could make sure of long lifetime (30 years).And also could achieve series operation.
Every switch has been filled with SF6 gas and dealt with sealing treat merit before
sending out from factory. The test has been done according to IEC60265-1(1988).
GB3804-1990 standards.
| Products Type | PGS-12 | PGS-24 | PGS-40.5 |
| Basic Ratings | |||
| Maximum System Voltage | 15 kV | 25.8 kV | 40.5 kV |
| Rated Continuous Current | 630 A | 630 A | 630 A |
| Rated Frequency | 50/60 Hz | 50/60 Hz | 50/60 Hz |
| Short Time Withstand Current (rms) | 20 kA/4sec | 25kA/1sec | 20kA/1 sec |
| Making and Breaking Capacity | |||
| Mainly Active Load Current | 630A | 630A | 630A |
| Number of Load-break Operations | 400 times | 400 times | 400 times |
| Short-circuit Making Current (peak | 50 kAp | 50kAp | 50 kAp |
| Number of Making Operations | 5 times | 5 times | 5 times |
| Cable Charging Current | 25A | 25A | 25A |
| ine Charging Current | 1.5A | 1.5A | 2A |
| Closed Loop Circuit Current | 630A | 630A | 630A |
| Transformer Magnetizing Current | 22A | 22A | 22A |
| Power Frequency Withstand Current Test | |||
| Wet Condition-10 sec(Ph-Ph,Ph-Eth,Across Interrupters) | 45 kV | 50kV | 70 kV |
| DryCondition-1min(Phaseto Earth,Phase to Earth) | 50 kV | 60kV | 95 KV |
| Dry Condition -1min(Across Interrupter) | 50 kV | 60kV | 110 kV |
| Impulse Withstand Current Test(1.2x50μs) | |||
| Phase to Phase,Phase to Earth | 85 kV | 150kV | 195 kV |
| Across Interrupter | 95 kV | 150kV | 215 kV |
| Other Ratings &Specifications | |||
| Intenal Arc Test | 20kA/0.1 sec | 20kA/0.1 sec | 20kA/0.1 sec |
| Arc Extinction Medium | SF 6 Gas | SF 6 Gas | SF 6 Gas |
| Insulation Medium | SF 6 Gas | SF6 Gas | SF 6 Gas |
| Creepage Distance (Porcelain) | 550 mm | 840 mm | 1055 mm |
| Creepage Distance(Silicon) | 615 mm | 900 mm | 1250mm |
| IP Level | 54 | 54 | 54 |
| Operation Performance | |||
| Closing/Opening Time | <0.1 sec | 50.1 sec | <0.7 sec |
| Mechanical Operations (Guaranteed) | 10,000 times | 10,000 times | 10,000 times |
| Operating Temperature (*Manual Type) | 25 (-40)~70ºC | -25 (-40)~70ºC | 25 (-40)~70ºC |
| Gas Pressure | |||
| Nominal Pressure (kgf/cm G,at 20C) | 0.7 | 1.0 | 1.0 |
| Bursting Pressure (kgt/cm G) | 4~6 | 4~6 | 4~6 |
| Minimum Gas Pressure (kgf/cm G) | 0.05 | 0.0 | 0.0 |
| Leakage Rate (cc/sec) | 1.1x10 -7 | 1.1x10 -7 | 1.1x10 -7 |
Appearance and dimension of switch
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