The SF6 insulated switchgear is suitable for middle voltage power distribution system with a rated voltage of 12kV. It could be used as RMUs in a power supply network, fault isolating switches and sectionalizing switches. If equipped with distribution automation devices (FTU/DTU) and communication devices, the SF6 insulated switchgear could communicate with the control center, measure the cable voltage, current, etc, and monitor the working status of switches.
All live parts and switching mechanisms are sealed into SF6 filled enclosure. This kind of switchgear is not easily affected by external ambient conditions, the reliability and safety standard can be guaranteed, therefore, the product is maintenance-free.
The following standard modules are provided: direct cable connection module, circuit breaker module, load switch module, load switch and fuse combination module, busbar sectionalizing switch module, metering module. customers are able to select combined modules freely based on actual situation. The product can either be comprised as RMUs or as transformer feeder switch.
• The SF6 is the insulation material which is sealed in a stainless-steel enclosure, fully-insulated and maintenance-free.
• Long life endurance.
• Obvious watchable open contacts.
• Reliable interlock and safer operation.
|Rated Short-time Withstand Current||20kA, 4s|
|Rated Peak Withstand Current||50kA|
|1min Power Frequency Withstand Voltage||42kV|
|Lightning Impulse Withstand Voltage||75kV|
|Mechanical Endurance||5000 times|
|Anual Leakage Rate||0.1‰|