XGNẞ-12 fixed type metal- enclosed switchgear is applied 3.6kV~ 12kV three phase AC 50/60Hz system which work as indoorapparatus distribution device. It has functions like circuit protection and testing, Its busbar system is single busbar and single busbarwith bypass busbar, also can derive dual busbars structure.
It complies with GB/T3906 and DL/T404. It has a completely mechanical anti mis -operation locking device which is. reliableperformance, complete functions, simply structure and convenient operating, it can meet requirements of interlock function of five-preventions simply and effectively.
1.Ambient Temperature: No more than +40℃ and no less than - 15℃.Average temperature is no more than +35℃ within 24 hours.
2.Altitude: No more than 1000m.
3.Relative Humidity: the average daily value is no more than 95%, the average monthly value is no more than 90%.
4.Earthquake Intensity: No more than 8 degrees.
5.Vapor pressure: average daily value is no more than 2.2kPa, average monthly value is no more than 1.8kPa.
6.Installation locations without fire, explosion danger, serious pollution, chemical corrosion and violent vibration.
1.XGNẞ-12 switchgear uses sealed metal box-type structure, and the framework of cabinet is welded by angle steel and steel sheet.
2.The cabinet is divided into circuit breaker compartment, busbar compartment, cable compartment and relay compartment,separated by steel plate between two compartments.
3.The switchgear was set by a front and a back door. And it is installed away from the wall and could be maintained from both sides.4.A pressure relief channel is provided at the top of thecabinet. If internal arcing fault occurs, it is able to release pressure anddischarge gas from the pressure relief channel to ensure the safety of operators.
5.The switchgear has a perfect "five-preventions", with simple and clear operation procedures.
6.The main circuit breakers that the switchgear using are ZN28- 12, ZN63A, VCA, etc. series vacuum circuit breakers; and othertypes of circuit breakers can also be used according to the requirements.
7.The disconnecting switch is GN30 rotating disconnecting switch or GN22 big current disconnecting switch.
Schematic diagram of structure