HNGCK low-voltage withdrawable switchgear is widely used in power distribution centers PC and motor control centers MCC of power plants, substations, factories, mining enterprises, and high-rise buildings. It is a low-voltage complete distribution device used for centralized control of power distribution and motors, reactive power compensation in power generation and supply systems with AC 50-60Hz, rated working voltage of 660V and below, and rated current of 4000A and below.
Main technical parameters
Rated insulation voltage: AC 660V, AC 1000V
Rated working voltage: AC 380 V, AC 660 V
Rated frequency: 50Hz
Maximum current of feeding circuit: 3150A
Maximum current of drawer circuit: 3150A
Maximum capacity of control motor: 320KW
Peak withstand current of horizontal busbar (0.1S): 63KA, 105KA, 176KA
Short time withstand current of horizontal busbar (1S): 30 KA, 50 KA, 80 KA, 100 KA
Vertical bus peak withstand current (0.1S): 63 KA, 105 KA
Short time withstand current of vertical busbar (1S): 30 KA, 50 KA
Rated power frequency withstand voltage (1min): 2500V
Secondary power frequency withstand voltage (1min): 2500V
Protection level: IP30、IP40
Dimensions: Width * Depth * Height mm: 600 (800, 1000) * 800 (1000) * 2200
Product usage environment
1. The ambient air temperature shall not exceed+40 ℃, not be lower than -5 ℃, and the average temperature within 24 hours shall not exceed+35 ℃. If it exceeds, the capacity shall be reduced according to the actual situation for operation;
2. Indoor use: The altitude of the usage location shall not exceed 2000m
3. When the relative temperature of the surrounding air is+40 ℃, it should not exceed 50%. At lower temperatures, a larger relative temperature is allowed, such as 90% at+20 ℃. It should be considered that condensation may occur accidentally due to temperature changes;
4. When installing the device, the slope with respect to the vertical plane should not exceed 5 ℃, and the entire cabinet row should be relatively flat (in accordance with GBJ232-82 standard);
5. The device should be installed in a place without severe vibration and impact, and where there is insufficient corrosion to the electrical components;
6. Users with special requirements can negotiate with the manufacturer to resolve them
