Product Description
ZBWpackaged substation,also known as prefabricated substation.It meet GB17467-1998“high and low voltage prefabricated substation”and IEC1330 standards etc.As a new type of power supply and distribution device,has more advantages than traditional civil substation.Such as smaller size,smaller floor area,compact structure, flexible movement,which greatly reduce period and area for construction in site,also the constructioncost. Meanwhile,prefabricated substation is easyto be installed at site,can realize rapidpower supply,almost maintenance free.Most particularly,it is placed at load center so that reduce power loss effectively to improve powerquality, enhance the reliability of power supply and also is significant for distribution network transformation.This substation fulfills the functions such as transformationofenergy,distribution,transmission,metering,compensation, system control,protection and communication.
The ZBW prefabricated substation is composed by the high-voltage switchgear,low-voltage distribution panel, distribution transformer and enclosure.The high-voltage switchgear adopts air load switch and the transformer is dry-type or oil immersed type.The substation adopts good ventilation structure with elegantappearance and good heat-insulating performance.The temperature rise of the compartments caused by the outdoor solar radiation can be reduced to within the lowest limits on account ofthe upper and lower ventilation windows.The forced ventilation device and the temperature auto-controlled device should be installed in the substation.The systems of control, protection,live display and the lighting are equipped in each separate unit.
Application
The type ofsmall unattended substationis applicable for voltage up to 35KV,with main transformer capacity up to 5000KVA,is widely used in urban industrial substation,10KVring network system, rural power grid 35KV substation and other occasions.
Main Function
This substation fulfills the functions such as transformation of energy,distribution,transmission,metering, compensation,system control,protection and communication.
Main Characters
The primary and secondary equipments are pre-installed in the cabinet which is removable,full-sealed,automatic temperature controlled,antiseptic,damp proof andrustproof.It only needs to be installed on the cement foundation after arriving at the site.This kind of substation have the advantages of low investment,short construction period, small occupation area and easy environmental coordination.
Technical Parameter of ZBW Prefabricated Substation
Notesto theordering ofthe Prefabricated Substation
1.High voltage:
- 1.1 Way ofincoming:terminal type,ring type or double power in.
- 1.2 Whether there is high voltage metering or not.If yes,the position ofthemeter(front ofthe switch or behind the switch),the requirement ofthe meter gauge and its supplier is designated ornot.
- 1.3 Type ofthe HV switch,one way is using the combination with high voltagevacuum load switch and the fuse, which is mainlyused and economical;the other is adopting the disconnector switch and the vacuum breaker, which is used for the high capacity transformer and with higher price.
2.Transformer
The transformer type,the connection group symbol,capacity andthe impedance voltage of the transformer.
3.Low voltage:
- 3.1 Switch supplier.
- 3.2 The number ofthe outgoing ways and the rated current value of each outgoing switch.
- 3.3 Whether there is the compensation or not,if yes,the capacity of the compensation.
- 3.4 Whether with the metering or not.If yes,the position is necessary