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YBM22-12/0.4 outdoor pre-installed substation


YBM22 series pre-installed substation is a high-voltage electrical equipment, transformers, low-voltage electrical equipment combined into a compact complete set of power distribution devices, used in urban high-rise buildings, urban and rural buildings, residential areas, high-tech development zones, small and medium-sized factories, mines, oil fields and temporary construction electricity and other places, for the distribution system to receive and distribute electricity.

Category:

Box-Type Substation


Product overview

YBM22 series pre-installed substation is a high-voltage electrical equipment, transformers, low-voltage electrical equipment combined into a compact complete set of power distribution devices, used in urban high-rise buildings, urban and rural buildings, residential areas, high-tech development zones, small and medium-sized factories, mines, oil fields and temporary construction electricity and other places, for the distribution system to receive and distribute electricity. The product has the characteristics of strong complete set, small size, compact structure, safe and reliable operation, convenient maintenance and movable. Compared with regular civil substations, the same capacity of box-type substations usually covers only 1/10~1/5 of regular substations, greatly reducing the design workload and construction volume, and reducing construction costs. In the power distribution system, it can be used in the ring network power distribution system, and can also be used in the dual power supply or radiation terminal power distribution system. It is a new complete set of equipment for the construction and transformation of urban and rural substations. YBM22 series prefabricated substation in line with GB/T17467-1998 "high voltage/low voltage prefabricated substation" national standard.

Model and meaning

 

Use of environmental conditions

Air temperature: upper limit ≤ 40 ℃, lower limit ≥-10 ℃;

◆ Solar radiation: ≤ 1000 W/m2;

◆ Altitude: ≤ 1000m;

◆ Icing: ≤ 20mm;

◆ Wind speed: ≤ 35 m/s;

◆ Humidity: daily average relative humidity <95%, monthly average relative humidity ≤ 90%, daily average relative water vapor pressure ≤ 2.2kPa, monthly average relative water vapor pressure ≤ 1.8kPa;

◆ Earthquake: ≤ 8 degrees;

◆ No fire, explosion hazard, serious pollution, chemical corrosion and severe vibration of the place.

Note: special conditions of use, when ordering proposed to negotiate with the manufacturer to resolve.

Main technical parameters

Main Technical Parameters
Serial Number Name Unit High-voltage electrical equipment Transformer Low-voltage electrical equipment
1 Rated voltage kV 10 10/0.4 0.4
2 Rated current A 630   100~2500
3 Rated frequency Hz 50 50 50
4 Rated capacity kVA   100~1250  
5 Rated thermal stability current kA 20/4S   30/1S
6 Rated dynamic stability current (peak value) kA 50   63
7 Rated closing short-circuit current (peak) kA 50   15~30
8 Rated breaking short-circuit current kA 31.5 (fuse)    
9 Rated breaking load current A 630    
10 1min power frequency withstand voltage kV To the ground, interphase 42 Interfracture 48 35/28(5min) 20/2.5
11 Lightning impulse withstand voltage kV To the ground, between 75 and 85. 75  
12 Protection class of shell   IP23 IP23 IP23
13 Noise level dB   Oil transformer 55, dry transformer 65  
14 Number of loops One 1~6 2 4~30
15 Maximum reactive power compensation at low voltage side kvar     300

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