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product name:LW8-40.5/1600-25 high voltage SF6 circuit breaker
SummaryLW8-40.5/1600-25 type sulfur hexafluoride circuit breaker is three-phase ac 50 hz, outdoor high voltage electrical equipment is suitable for the 40.5 KV power transmission and distribution system control and protection, Also can be used as a contact circuit breaker and movable capacitor group.
Product open circuit performance is good, the arc extinguish chamber pneumatic type, arc time is short, long electrical life, under the rated voltage continuous breaking short-circuit current 31.5 kA for 21 times don't repair Don't change the sulfur hexafluoride gas; High mechanical reliability. Mechanical life of more than 3000 times; To frequent operation, can carry 12 each current transformer only, for the user to choose from. the Products using new MKZ ranged type SF6 density table pointer type, pressure gauge reading is affected by temperature change, easy to use.
|2||rated insulation level||1 min power frequency withstand voltage, electrode, ground/fracture)||dry||42/49|
|Lightning shock compression (electrode, on the ground)||75|
|Lightning shock compression (fracture)||85|
|5||rated short circuit breaking current||KA||20|
|6||rated short circuit making current peak||KA||50|
|7||rated short time withstand current||KA||20|
|8||rated short circuit closing current peak||KA||50|
|10||rated short circuit breaking current breaking times||TIME||30|