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FZB Prefabricated Substation

A prefabricated substation, also called box-type substation, is a piece of compact indoor or outdoor distribution equipment which is composed of the high voltage switchgear, distribution transformer, and low voltage distribution unit according to some wiring method. It combines the functions of high voltage introduction, voltage reduction, and low voltage distribution together.

As a good replacement for power distribution room and pole-mounted transformer, the FZB prefabricated substation is extensively used in urban network construction. It is widely applied in a lot of places, such as mines, oilfields, road intersections, living quarters, industrial parks, commercial centers, etc. In addition, it can be made to be moveable for mobile operations.

Features
1. Beautiful appearance
2. Small volume, occupying less
3. Easy to install and use
4. Safe and reliable running
5. Strong adaptability to environment, flexible site selection
6. Short power transmission cycle
7. Improve power supply quality
8. Reduce loss

Technical Parameters
High voltage unit Item Unit Data
Rated frequency Hz 50/60
Rated voltage kV 35
Maximum working voltage kV 40.5
Power frequency withstand voltage
To earth or between phases / between fractures
kV 95 / 118
Lightening impulse withstand voltage
To earth or between phases / between fractures
kV 185 / 215
Rated current A 1600, 2000
Breaking current of load switch kA 20, 25, 31.5
Low voltage unit Rated voltage kV 6 10
Maximum working voltage kV 7.2 12
Power frequency withstand voltage
To earth or between phases / between fractures
kV 23 / 28 42 / 48
Lightening impulse withstand voltage
To earth or between phases / between fractures
kV 60 / 70 75 / 85
Rated current A 630, 1250, 600, 2000, 2500
Rated breaking current kA 20, 25, 31.5
Rated breaking times times 20
Transformer unit Power frequency withstand voltage kV 85
Rated capacity kVA 2000~20000
Load voltage regulation kV 35±3×2.5%
Connection group YN, d11
Cooling style Oil immersed air cooling, dry type self-cooling or air cooling

Related Names
Electrical Generation Device | Power Distribution Unit | Electrical Automation Equipment

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