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High Mechanic Strength Oil Immersed Distribution Transformer 20kV - 800kVA

Categories Oil Immersed Transformer
Brand Name: Pearl Electric Co.,Ltd.
Model Number: PEO-S, S9~13
Certification: KEMA, CE, CCC, ISO9001
Place of Origin: China
MOQ: 1 unit
Price: USD/RMB
Payment Terms: T/T, L/C
Supply Ability: 8000 units per year
Delivery Time: 35~50days ex-work
Packaging Details: Seaworthy wooden packing
Capacity: 800kVA or Customized
Rated H. V.: 20kv or Customized
Rated L. V.: 0.433kv or Customized
Vector Group: Dyn11 or Customized
Impedence: 4.75% or Customized
Cooling: ONAN/ONAF or Customized
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High Mechanic Strength Oil Immersed Distribution Transformer 20kV - 800kVA

20kV - 800kVA , Oil - Immersed Transformer, Three Phases, Two Winding, Power Distribution


Introduction


Oil-immersed type transformer features low noise, low loss, rational structure, high quality material, scientific design, strict production technology and advanced test method. The product also has the following additional advantages:


Core:


The core is manufactured with high quality cold rolled grain-oriented silicon steel of high magnetic conductivity, and 45° Mitring and steps overlapping structure is used for core production, thus to effectively reduce no-load loss and no-load current.

HV winding:


HV winding is manufactured with high quality copper conductor, adopting optimized structure to improve electric distribution. Lightning impulse wave process is carried out for calculation and analysis, thus to improve transformer's anti-lightning impulse capability.

LVwinding:


LV winding is manufactured with high quality foil conductor, so the ampere-turn balance is excellent and the transverse magnetic flux leakage is low. The anti-short circuit capability is thus greatly improved. Oil conduit is rationally designed in the windings to increase winding's heat dispersion surface, effectively reduce temperature and improve transformer's overload capability.


Insulation Structure:


The transformer adopts class-A insulation. The HV and LV windings are arranged in concentric way. Between the windings are oil-clapboard insulation structure built with paper cylinder and small oil conduit.


Tank:


The tank is jointed with high-quality steel. Rust-removing and phosphorization processes are carried out for the tank surface, then the surface is coated with FVC anti- erosion paint, thus to effectively prevent grease pollution and chemical erosion. The appearance is nice and harmonic with the environment. The whole structure is easy for installation and maintenance. It can be widely applied in outdoor environment and under harsh conditions.


Accessories:


The transformer is equipped with HV & LV bushings, oil drain valve, earthing bolt, lifting board, rating plate, pressure relief valve and other accessories. Transformers of over 800KVA power are equipped with signaling thermometer and gas relay.


2.2 Feature


---This indicator can give the correct oil level 30mm under the oil tank cover.

Indication is real,correct.The position of oil indicating can be decided by our

customers' requirements, and is given it out when they order the goods, without

special requirements the oil level indicating position will be set above the tank cover,

i.e. when the oil level is above the tank cover, float gives blue color completely,that

means the oil level is OK.


No.ItemsUnitItem 1
I Basic Information     
1.01Type Designation PEO-S-KVA/HV/LV
1.02Applicable Standards IEC 60076
1.03Manufacturer Pearl Electric
1.04Country of Origin China
II Pearl Electric Performance     
2.01Rated PowerkVA800
2.02HVKV20
2.03LVKV0.433
2.04FrequencyHz50
2.05Number of phase Three
2.06Insullation Class Class A
2.07Cooling Method ONAN
2.08Tapping Ranging ±2*2.5% on HV side
2.09Vector Group Dyn11
2.10Noise leveldB60
2.11Impedance%4.75
2.12No-load lossW1400
2.13Load Loss (@75℃)W7500
2.14Max. Ambient Temperature40℃
2.15Top oil temperature riseK60
2.16Winding temperature riseK65
2.17Impulse Withstand Voltage(HV/LV)
kV
75/0
2.18Power Frequency Withstand Voltage(HV/LV)
kV
28/3
2.19Rated Duration of Short Circuits2
III Materials & Accessories     
3.01Core Materials Silicon Steel Sheet
3.02Winding Materials Copper conductor/foil
3.03Main Insulation Materials Mineral Oil
3.04Tap-changerpcsOff-load tap-changer
3.05Pressure relief valvepcsYes,with alarm and trip
3.06Gas relaypcsYes,with alarm and trip
3.07HV&LV Cable Box & Extension BusbarpcsYes
3.08BushingpcsPorcelain Bushing
3.09Oil thermometerpcsYes,with alarm and trip
3.10Terminal boxpcsYes
3.11Oil-level indicatorpcsYes
3.12Oil ConservatorpcsHermetiacally-sealed tank
3.13De-hydrating breatherpcsN/A
3.14Cooling devicepcsCorrugated fins
3.15Current TransformerpcsN/A
3.16Lightning ArresterpcsN/A
3.17Transformer wheelpcsYes
IV OTHERS     
4.01Dimensions (L*W*H)mm1690*2150*1550
4.02Total mass(with oil)kg2680
4.03Colour RAL7035


Quality High Mechanic Strength Oil Immersed Distribution Transformer 20kV - 800kVA for sale
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