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GW7F Disconnector


1 Overview
  GW7F three-post horizontal double-clearance revolving outdoor three-phase high-volt-age AC disconnector, rated frequency 50Hz, rated voltage 252kV, 363kV is for high-voltage line switch-ing and isolate the high-voltage busbarcircuit breaker and other high-voltage electric equipmentsand live high-voltage line. Under the condition of non-breaking or non-making loading current,during the process of Transfer switching, open-close busbar transferring current and voltage
transformerlightning arrester and so on.
2 Service and Installation Conditions
  Altitude: 252kv disconnector within 2000m; 363kv disconnector within 3000m
  Ambient temperature: -50~+50;
  Wind pressure: within 700Pa;
  Seismic intensity: within 9
  Ice thickness: within 20 mm;
  Pollution class: class III and ;
  There should be no inflammable, explosive, corrosive and violent vibration in the mounting site.