HONLE S11-M series hermetically sealed oil-immersed power
transformer of class 20-10KV with dual-winding
off-circuit-tap-changingModel meaningOverview & featuresOur
three-phase oil-immersed distribution transformer adopts new type
insulation structure for its body that further improves its
short-circuit resistant capacity; its iron core is made of high
quality cold-rolled steel sheet; all HV windings are made of
oxygen-free copper, and adopt multi-layer barrel type structure;
all fasteners have gone through special tightening
treatment. The product is featured with high efficiency, low
loss, it is able to save much electric energy and running cost, has
significant social benefits, is a high-new-tech product popularized
by the nation. Reliable structure Depending on
mature technologies, we made a lot of improvements on the basis of
traditional structure: >> Spiral winding with
longitudinal oil duct that enjoys good inner heat
dissipation; >> Effective support at winding end surface
that further improve the short-circuit resistant capacity of
winding; >> Adoption of new hoisting structure and body
positioning structure that guarantee safety in long-distance
transport and in service; >> More unique and reliable
structures for your option; >>Adoption of transformers
with more excellent performances to improve the technical
content. Excellent materials >>Because we use
oxygen-free copper wires of lower resistivity, which will become
smoother and burr-free after a series of surface treatment, so the
load loss of our transformer is lower and the electric performance
is better.>>We use high-quality silicon-steel sheets which
are of lower specific loss, so the no-load loss of the transformers
is lower.>>We use high quality wooden laminating insulation
pieces, which won't split or move even under the influence of short
circuit current.>>We use thoroughly filtrated transformer oil
containing less water, gas or impurities, which makes our
transformers work better.>>We use high quality rubber sealing
material, which can prevent the transformers from aging or leakage
effectively.>>All raw materials have passed the quality
testing, and all the raw material factories have passed the
national standard IS09000 inspection.Good technology and economic
performanceImproved from S9 series product, S11 series product
reduces the no-load loss by 31%; no-load current by 75-90%; average
temperature-rise by 10k; noise level by 3-5 db; and double the
products' service life. Even under 20% overloads, it can also work
for a long period of time.Hermetically sealedThe "M" in S11 (M)
stands for omniseal structure that the oil tank employed. Compared
with common oil-immersed transformer, omniseal oil-immersed
transformer discards the oil conservator but adopts wing-like
corrugation for replacing oil tube as component of heat dispersion.
The corrugated oil tank which is made of high-quality cold-rolled
sheets is produced on the special production lines. The wing-like
corrugation will expand and compress as that the volume of
transformer dose, so that the transformer is separated from the
atmosphere and can prevent or slower deterioration of oil and
breathing of insulation. All these ensure the reliability of
operation and without maintenance.After the treatment of deoiling,
derusting and parkerizing, the surface of corrugated oil tank is
coated with paint which provides three-proofing function. It is
suitable for the use in the environment such as metallurgy,
petrochemical industry and mining, etc.Service
conditions>>Installation height: altitude shall not exceed
1000m>>Ambient temperature: -40ºC~40ºCDimension &
SchematicTechnical parameters Rated capacityInstallation
dimension(KVA)LWHC1C23098087012305505505010109001280550550631030920131055055080105093013705505501001070970142055055012510909901430550550160113099014706606602001150101015206606602501200108015706606603151210110016206606604001420900173066066050014509201790820820630155010001950820820800170010401990820820100017801130205082082012501880123021008208201600204013802260820820200023501180260010701070250024501220272010701070
Rated capacityVoltage combinationConnection groupLoss (KW)No-load
current Short-circuit impedanceWeight
(kg)kVAHV kVHigh-voltage tapping
rangeLV kVsymbolNo-loadOn-load%%Oil weightGross
weight3020/10±5×2.5%±2×2.5%0.4Dyn110.090.662.15.5260640500.130.962.0280720630.151.1451.9290760800.181.371.83108301000.21.651.63309201250.241.981.53409901600.292.421.436010902000.332.861.339012302500.43.351.243013803150.484.011.147016104000.574.731.050017405000.685.661.054019606300.816.820.96.066025008000.988.250.8740290010001.1511.330.7820331012501.3513.20.7890378016001.6315.950.61000450020001.9519.140.61060518025002.3422.220.511305850
Note: 1. High-voltage tapping range of ±5×2.5% or ±2×2.5% is
available on request.
2. Performance parameters of other capacity
specifications can be determined by both users and manufacturer
through negotiation. Order guidePlease specify the p
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