◇ Introduction
SDFZW-12F outdoor user boundary vacuum load switch applies to the 10kV distribution lines, the responsibility of the user line demarcation point at the column installation of 10kV distribution lines branch line T at occasion,it is maintenance-free load switch, vacuum interrupter and SF6 gas as insulating medium between phase and phase to ground .
SDFZW-12F outdoor user boundary vacuum load switch with SDFDR-1 controller supporting, with fault detection capabilities to protect the control functions and communication functions, automatic removal of the single-phase ground fault and automatic isolation phase short circuit fault.Outdoor user boundaries vacuum load switch can not be used in tandem.
Implementation of standards:
GB3804.1 "AC high voltage load switch".
GB11022 "high-voltage switchgear and control equipment sharing technical requirements".
◇Model defined
◇The main technical parameters
1.Switch rated parameters
2.Controller rated parameters
◇Use of the environment
1.The ambient air temperature around the maximum air temperature does not exceed 40 ℃, the lower limit of not more than - 45 ℃.
2.Wind speed: not more than 35m/s.
3.Altitude: no higher than 1000m.
4.Seismic intensity: No more than 8 degrees.
5.Ambient temperature: Monthly average relative humidity less than 90%; average relative humidity less than 95%.
6.Ice cover thickness: 10mm.
7.Installation places: the place of matter, and recurrent severe vibration should be non-inflammable, explosive, chemical corrosion.
8.Neutral grounding modes: neutral point ungrounded neutral point by arc suppression coil grounding the neutral point grounded by low resistance
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