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General:
YBM()series pad mounted transformer is suitable for 7.2kVup to 36kV ring power supply and terminal power supply system as HV distribution calculation and protection equipment. In the substation except transformer there are 4 load switches, two-position load switch, protection fuse and plug-in fuse in the HV side.
We can install control electrical, distribution electrical, compensation electrical and meters. This substation can use indoor or outdoor.
Service environment:
a) Air temperature: Maximum temperature: +40°C; Minimum temperature:-25°C
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
Structure characteristics:
The box structure of this product is divided into two parts. In front is HV and LV operation room. In the HV room including HV terminals, load switch, off-load switchgear, plug-in fuse, pressure relief valve, thermometer, oil level indicator and oil drain valve. In LV room including LV terminals. In the back sector are oil tank and radiator, and transformer winding and iron, load switch and protection fuse are in the oil tank.
Technical data
NameUnitHV equipmentTransformerLV Equipment
Rated voltagekV1212/0.40.4
Rated currentA6303/75~150/1875Less than 4000
FrequencyHz50
Rated CapacitykVA50-1250
Pfr withstandkV42/50/702.5
BILkV75/125/170
Crust Protection Grade
IP23Omni sealIP33
Noisy GradedBOil type less than 55
Appearance DimensionsmmAccording to primacy wiring circuit schemaChina Self Protected Transformer factory
website:http://www.china-rockwill.com/power-transformer-ct-pt/self-protected-transformer/
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