Product DescriptionQinghao oil distribution transformer includes
hermetically sealed, amorphous alloy, conservator type and on-load
tap changer type, which is usually pole mounted or installed in
distribution station for daily lighting and factory power whose LV
output up to 0.4kV. Our distribution transformer rating is up to
2500kVA, and primary voltage up to 35kV. The corrugated tanks as
thermal expansion and contraction component enable the transformer
oil completely isolated with the atmosphere. Oil distribution
transformer with primary voltage range of 6,10,10.5,11,20,22,24,33,
35,38.5kV can be manufactured according to customer
requirements.Amorphous alloy oil immersed distribution transformer
includes:SBH15/21/25 11KV/0.4KV 30kVA-2500kVASBH15/21/25 20KV/0.4KV
100kVA-2500kVA*Please refer to seperate introduction
for Hermetically sealed S series oil immersed
distribution transformer.Main Characteristics:1. Designed by
patented technology and software with premium performance.2. Core
is made of high quality cold-rolled grain-oriented silicon steel
sheet which produced in step-lap technology.3. Winding is using
high strength enameled wire or paper-insulated wire or copper belt,
which offers uniform distribution of ampere-turns, reasonable
insulation structure with high ability to withstand
short-circuit.4. Oil tank is corrugated type with high corrosion
resistance. Tank surface pre-treatment liquid and coating powder
adopts international top brands. The tank is degreasing, pickling,
phosphorated, electrophoresis by automatic production lines, then
power spray coating and heat-solidify.5. The active
part applies core free-hanging structure. The gasket is made
of high-quality acrylate rubber which can inhibit ageing caused by
sun and heat.Advantages:1. Low loss, low noise, low partial
discharge, high reliability.2. Safety with elegant
appearance.3. Convenient installation and simple
maintenance.4. Compact with small occupied area.Applications1.
Building Infrastructure and Industrial: Airports, hospitals,
factories, shopping malls, hotels, commercial and residential
towers.2. Utility: Generation, transmission, distribution
substations, water and waste water treatment plants.3. Oil and
Gas: Oil and gas plants, petrochemical plants and
refineries.Service environment:1. Ambient temperature: Maximum
+40ºC, Minimum -40ºC2. Altitude: less than 1000 meters.3. Seismic
level: less than 3m/s2 at horizontal direction and less than
1.5m/s2 at vertical direction.4. Installation environment: No
obvious and heavy pollution, no explosive and corrosive gas and
dust, with good air ventilation and no severe vibration and
shock.(Note: If the application environment is different from the
above standard conditions, please contact for customized
designs.)Product Parameters High efficiency, low loss, low
noise, small size, light weight, compact structure and easy to
use. The rated voltage can be customized as customers'
requirements. SBH15/21/25 11KV/0.4KV
30kVA-2500kVA
High
Voltage:10(6,6.3,10.5,11)KV
Connection Symbol:D,yn11 or
Y,yn0
Rated
Frequency:50Hz/60Hz
Low
Voltage:0.4(0.415,0.433)KV
Tapping Range of
HV:±2x2.5%
Insulation Level:LI75 AC35/AC3Rated power(KVA)Short-Circuit
Impedance(%)S(B)H25 (W)S(B)H21 (W)S(B)H15 (W)No-Load
Current(%)SoundpressuredB(A)Weight(kg)Overall Dimension(mm)No-Load
LossOn-Load Loss75ºCNo-Load LossOn-Load Loss75ºCNo-Load LossOn-Load
Loss75ºCLWHDyn11Yyn0Dyn11Yyn0Dyn11Yyn0304.02346044030490460305705501.5052430950750880503267064040710680408307901.2053520970790890633580076045850810459909501.00535501000800900804596092055102097055119011401.005562011008109101005511501100701230117070144013600.905566011008209301256513901320801470140080172016400.805975012208309401607517001620901800171090210020000.60598701230900950200852010191011021202020110248023600.606192012409809602501002350225013024902370130291027700.6061109012509909803151252820268015529802840155348033200.50641280126011009904001453330316018535103340185411039100.506415301650110010205001753980379022042004000220492046800.506616701670110010406304.52304560290482029056400.306620101810120010708002755520345583034568200.3068232018801200109010003307580410800041093600.30682940199013401250125038588404809330480109100.2071346021101380135016004551068057511270575131800.2071413021101380182020005.05001273064513450655166400.2072472021601550154025006201405078514820790192700.20725830237015501650Note:
The above parameters are only for designing and selecting
reference, and the final parameters are subject to the actual
product.SBH15/21/25 11KV/0.4KV
100kVA-2500kVA
High
Voltage:20(15,20,22)KV
Connection Symbol:D,yn11 or
Y,yn0
Rated
Frequency:50Hz/60Hz
Low
Voltage:0.4(0.415,0.433)KV
Tapping Range of
HV:±2x2.5%
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