Description

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