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Audited Supplier Outdoor Pole Mounted Sf6 Gas Load Break Switch
Product Description
The GPS series outdoor SF6 pole mounted load switch is used for three-phase AC 50Hz/60Hz outdoor medium voltage switchgear with a rated voltage of 24kV and a rated current of 630A. It can disconnect and close the load current and overload current in the power system. The load switch adopts an intelligent controller to achieve automation of the distribution system.Simple installation on pole is convenient, fast, and also can reduce the construction cost.
The standard conditions of use
Ambient air temperature: upper limit +50 ºC, lower limit of -40 ºC.
Relative Humidity: 100%
Elevation does not exceed 1000m;2000m;3000m;5000m
The pressure does not exceed 700pa (equivalent to wind speed of 34m / s).
Earthquake intensity: 8 degrees.
Installation site: No fire, no explosion hazards, no chemical corrosion and recurrent severe vibration.
Pollution class: class III, class IV.
Features
1SF6 gas-insulated
SF6 gas is a kind of nontoxic, nonflammable and electrical insulating gas. It has the excellent characteristic of arc extinction.
2 Drive pipe with large diversity
In addition to the standard ceramic drive pipe, we can also provide a variety of solutions, including rubber insulators used in the epoxy resin filling equipment.
3 Visible open / closed status
It is easy to see the main contact position indicator which is color-coded just standing on the ground (Green - off; red - closed). The indicator is directly connected with the main contacts of the drive shaft assembly to ensure accurate display of contact states.
4 Quick operation
operating mechanism with spring energy to ensure a quick closing and opening operation (less than 100milliseconds).
5 Can realize remote control
It is equipped with electronic controller, fit for in situ operation as well as FTU interface console operation.
6 Rugged switch
The switch is made of proven durable, corrosion-resistant materials (special used in warships 304L stainless steel plate)which ensures that there is a very long service life (30 years), and can be implement a series of operations.It has the ideal characteristics as a column equipment.
7 Standard
Each switch before leaving the factory has been filled with SF6 gas, sealed, and test according to IEC60265-1, GB40.504 standard.
Technical Satisfaction
| Products Type | GPS-12 | GPS-24 |
| Basic Ratings | ||
| Rated Voltage | 15 kV | 25.8 kV |
| Rated Continuous Current | 630 A | 630 A |
| Rated Frequency | 50/60 Hz | 50/60 Hz |
| Short Time Withstand Current ( rms) | 20 kA/ 4sec | 25kA/ 1sec |
| Making and Breaking Capacity | ||
| Mainly Active Load Current | 630A | 630A |
| Number of Load-break Operation | 400 times | 400 times |
| Short-circuit Making Current (peak) | 50 kAp/4s | 31.5kAp/4s |
| Number of Making Operations | 5 times | 5 times |
| Cable Charging Current | 25A | 25A (200 A) |
| Line Charging Current | 1.5A | 1.5A |
| Closed Loop Circuit Current | 630 A | 630 A |
| Transformer Magnetizing Current | 22A | 22A |
| Power Frequency Withstand Current Test | ||
| Wet Condition- 10 sec (Ph- Ph, Ph-Eth, Across Interrupters) | 45 kV | 50kV |
| Dry Condition - 1 min(Phase to Earth, Phase to Earth) | 50 kV | 60kV |
| Dry Condition - 1 min (Across Interrupter ) | 50 kV | 60kV |
| Impulse Withstand Current Test ( 1.2 x 50 ps ) | ||
| Phase to Phase, Phase to Earth | 85 kV | 150kV |
| Across Interrupter | 95 kV | 150kV |
| Other Ratings & Specifications | ||
| InternaArc Tes | 20kA /0.1 sec | 20kA /0.1 sec |
| Arc Extinction Medium | SF 6 Gas | SF 6 Gas |
| Insulation Medium | SF 6 Gas | SF 6 Gas |
| Creepage Distance (Porcelain) | 550 mm | 740 mm |
| Creepage Distance (Silicon) | 615 mm | 800 mm |
| IP Leve | 54 | 54 |
| Operation Performance | ||
| Closing/Opening Time | < 0.7 sec | < 0.7 sec |
| Mechanical Operations (Guaranteed) | 10,000 | 10,000 |
| times | times | |
| Operating Temperature (*Manual | -25 (*-40) | -25 (-40) |
| Type) | ~ 70° C | ~ 70° C |
| Gas Pressure | ||
| Nominal Pressure (kgf/cm2 G, at 20°C)) | 0.7 | 1.0 |
| Bursting Pressure (kgf/cm2 G) | 4 ~6 | 4 ~6 |
| Minimum Gas Pressure (kgf/cm2 G) | 0.05 | 0.0 |
| Leakage Rate (cc/ sec) | 1.1 x 10 -7 | 1.1 x 10 -7 |
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