YB series combined substation is a high-voltage electrical equipment, transformers, low-voltage electrical equipment, etc. 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 of electricity and other places, for the distribution system to receive and distribute electricity.
This product has the characteristics of strong complete set, small size, compact structure, safe and reliable operation, convenient maintenance, and movable. It covers an area of only 1-10~1/5 of the same capacity regular civil substation, which greatly reduces the construction cost. In the power distribution system can be used for ring network power distribution system, can also be used for dual power or radiation terminal power distribution system.
This product symbol GB/T17467-1998 "high voltage/low voltage prefabricated substation" standard.
Model
Use of the environment
> Altitude: below 1000m;
> ambient temperature;
> not more than 40 ℃;
> minimum not lower than -25 ℃;
> The average temperature does not exceed 30 ℃ in a 24-hour period;
> Seismic horizontal acceleration is not more than 0.4m/S2, vertical acceleration is not more than 0.2m/S2;
> No severe vibration and shock and explosion dangerous place.
Overall dimension
Technical parameters
Project Name
Unit
High-voltage electrical appliances
Parameters of switchgear and circuit breakers
Rated voltage
kV
6;10
6/0.4、10/0.4
0.4
Rated capacity
KVA
Type I 200~1250
Type II 50~400
Rated current
A
630
100~2000
Rated breaking current
KA
31.5
Rated short-time withstand current
KA
31.5
Rated peak withstand current
KA
50
Rated closing current
KA
31.5
Power frequency withstand voltage 1min
kV
Relative to ground and interphase 42
Oil-immersed: 35
2.5
Isolation fracture 48
Dry type: 28
2.5
Lightning impulse withstand voltage
KV (peak)
Relative ground and interphase 75
75
Isolation fracture 85
75
Protection grade of cabinet
IP3X
IP2X
IP30
Noise level
dB
Oil-immersed type:< 65
Dry type:< 65
Note: when the transformer capacity is less than 200KVA, the project 5.6 is not required.