GGD Lower Voltage Switchgear

Product overview

GGD AC low-voltage distribution cabinet is suitable for power plants, substations, industrial and mining enterprises, etc. Power users as AC 50HZ rated working voltage 380V, rated working 3150A distribution system, as power, lighting and distribution equipment for power conversion, distribution and control purposes. The product has the characteristics of high breaking energy retention, good dynamic and thermal stability and strong applicability. GGD low-voltage distribution cabinet meets the national standard GB7251.1 "Low-voltage switchgear and control equipment" and international standard IEC 439.

Use of environmental conditions

The ambient air temperature should not be higher than + 40 degree C, not lower than -5 degree C, and the average temperature within 24 hours should not be higher than + 35 degree C;

For indoor installation and use, the altitude of the place of use shall not exceed 2000;

The relative humidity of ambient air should not exceed 50% at the highest temperature of + 40 C.Ilt should be alowed to have a larger relative temperature at a lower temperature (for example.90% at + 20 C), Consideration. should be given to the occasional effect of condensation due to the change of temperature.

When installing the equipment, the inclination with the vertical plane should not exceed 50.

The equipment should be installed in places where there is no severe vibration and impact, and where the electrical components are not sufficiently corroded.

Users may negotiate with the manufacturer when they have special requirements.

Electrical performance

1.Basic eletrical parameters

2. Main Bus
Considering the price ratio and the feasibility of replacing copper with aluminium, single aluminium bus can be used when rated current is below 1500A and double copper bus can be used when rated current is greater than 1500A. The manufacturer manufactures the prototype according to this regulation and passes the type test. Of course, the manufacturer can also replace aluminium bus with copper bus with the same carrying capacity according to the user's requirements. Line.The overlap surfaces of buses are all treated by tin-enameling process.

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