prefabricated substation 12KV 24KV 36 KV

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prefabricated substation is a kind of set of equipment which assembles the MV switch apparatus, transformer, LV distribution equipment together according to fixed connection scheme. This series substation is suitable for neighborhood unit, hotel, large-scale work site and high building that the voltage is 12kV /24kV/36kV/40.5kV, the frequency is 50Hz and the capacity is under 2500kvA.

Service environment

a) Air temperature: Maximum temperature: +40℃; Minimum temperature:-25℃
b) Humidity: Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level: Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake

Main technical specifications

Name Unit HV equipment Transformer LV Equipment
Rated voltage kV 12/24/36 (12/24/36)/0.4 0.4
Rated current A 630 3/75-150/3750 Less than 4000
Frequency Hz 50
Rated Capacity kVA 50-2500
Pfr withstand kV 42/50/70/95 2.5
BIL kV 75/125/170/185
Crust Protection Grade IP23 Oil type 55; dry type 65 IP23
Noisy Grade dB
Appearance Dimensions mm According to primacy wiring circuit schema
HV Room LV Room Transformer Room

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