GN27-40.5 Indoor High Voltage Disconnect Switch

GN27-40.5 indoor high voltage  disconnect switch.. It is a three-phase AC 50Hz high-voltage switchgear, which is used in a power system with a voltage of 40.5kV to divide and close circuits under the condition of voltage and no load.

Our GN27-40.5 indoor high voltage disconnect switchis a three-phase common chassis structure of vertical rotary guillotine type. The static contact on the fracture side is designed as a swing type multi-contact contact, which has the advantages of low contact pressure, low wear, large heat dissipation area and small operating torque of the single contact. chassis structure. The static contact on the fracture side is designed as a swing type multi-contact piece contact, which has the advantages of low contact pressure, low wear, large heat dissipation area, and small operating torque of the single-piece contact. insulating properties and high mechanical strength. In order to meet the needs, there are flat type, wall type, with grounding knife and other types. This series of isolating switches can be installed horizontally, vertically or obliquely.

Model Description

G:Isolating switch

N:Indoor

27:Design Number

40.5:Rated voltage:40.5kV

▢:With grounding switch

(W）:Anti-fouling type

▢:Rated current:630A、800A、1000A、1250A

Working Environment：

◆Installation method: side-mounted, middle-mounted

◆Ambient air temperature: upper limit +40C, lower limit -30C; ;

◆Altitude: ≤2000m (if the altitude needs to be increased, the rated insulation level should be increased accordingly);

◆Wind pressure: no more than 700Pa (equivalent to wind speed of 34m/s);

◆Amplitude: earthquake intensity 8 degrees;

◆Contamination level: Class I;

◆Maximum daily temperature difference: no more than 25C.

Main Technical Parameters

Structure And Mounting Dimensions