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11kV - 1250 KVA Oil Immersed Transformer Energy Saving Low Loss Economic

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Good quality Oil Immersed Transformer for sales
Good quality Oil Immersed Transformer for sales
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11kV - 1250 KVA Oil Immersed Transformer Energy Saving Low Loss Economic

China 11kV - 1250 KVA Oil Immersed Transformer Energy Saving Low Loss Economic supplier

Large Image :  11kV - 1250 KVA Oil Immersed Transformer Energy Saving Low Loss Economic

Product Details:

Place of Origin: China
Brand Name: Pearl Electric Co.,Ltd.
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEO-S, S9~13

Payment & Shipping Terms:

Minimum Order Quantity: 1 unit
Price: USD/RMB
Packaging Details: Seaworthy wooden packing
Delivery Time: 35~50days ex-work
Payment Terms: T/T, L/C
Supply Ability: 8000 units per year
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Detailed Product Description
Capacity: 1250kVA Or Customized Rated H. V.: 11kv Or Customized
Rated L. V.: 0.433kv Or Customized Vector Group: Dyn11 Or Customized
Impedence: 4.75% Or Customized Cooling: ONAN/ONAF Or Customized

11kV - 1250kVA , Oil - Immersed Transformer, Three Phases, Two Winding, Power Distribution

 

Introduction

 

1. High mechanic strength,  rank first in the industry in China.


2. Excellent overload capability, capable of continuously working under 110% rated load.


3. Low loss, energy-saving


4. Nice appearance, small size


5. Each specified in China GB, international IEC and industrial standards.


6. Hermetically sealed corrugated tank structure is adopted, thus to effectively prevent air corrosion to the oil and prolong service lifetime of the transformer.

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.

 

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.

 

Structure and feature

 

2.1 Tubing oil level indicator consists of the instrument housing made of aluminum

alloy which is shaped by compressing and casting,float indicating system,protective

frame,visual window and top cover or pressure-relief-valve;Visual window is made

of thick glass tube which is inside the indicator.

 

---The inltrument housing is made by compressing and casting aluminum alloy.The

Outward appearance is fine looking.It is also less-weight,corrosion-resistance,

Without accumulation of dust in the surface.The out surface adopts electrostatic paint

Spraying.After this processing, it has very solid adhesive force without any peeling

Off.

 

Main measures for preventing oil leakage:


1. Superior large-width steel plate is selected as material and no vertical joins on the tank wall.


2. All sealing flanges are products of finish machining, thus to ensure components' flatness and cleanness. Therefore, the sealing parts have very long service lifetime.


3. Dual-sealing structure is adopted for large and medium size tank, thus to further ensure tank rim from oil leakage.


4. Advanced technology is adopted during protective welding, thus fully ensuring the welding quality. X-ray leakage detection is carried out for each welding seam.


5. All main components and parts (for example, bushing, radiator, sealing parts, butterfly valve and flap door) are purchased from the famous manufacturers recognized and certified by authority.


6. Superior sealing part and nitrile rubber are adopted for sealing process. The nitrile rubber is a type of oil-resistant high-elasticity product that has a reputation as "sealing expert".

 

No. Items Unit Item 1
I Basic Information     
1.01 Type Designation   PEO-S-KVA/HV/LV
1.02 Applicable Standards   IEC 60076
1.03 Manufacturer   Pearl Electric
1.04 Country of Origin   China
II Pearl Electric Performance     
2.01 Rated Power kVA 1250
2.02 HV KV 11
2.03 LV KV 0.433
2.04 Frequency Hz 50
2.05 Number of phase   Three
2.06 Insullation Class   Class A
2.07 Cooling Method   ONAN
2.08 Tapping Ranging   ±2*2.5% on HV side
2.09 Vector Group   Dyn11
2.10 Noise level dB 60
2.11 Impedance % 4.75
2.12 No-load loss W 1800
2.13 Load Loss (@75℃) W 13000
2.14 Max. Ambient Temperature 40℃
2.15 Top oil temperature rise K 60
2.16 Winding temperature rise K 65
2.17 Impulse Withstand Voltage (HV/LV)
kV
75/0
2.18 Power Frequency Withstand Voltage (HV/LV)
kV
28/3
2.19 Rated Duration of Short Circuit s 2
III Materials & Accessories     
3.01 Core Materials   Silicon Steel Sheet
3.02 Winding Materials   Copper conductor/foil
3.03 Main Insulation Materials   Mineral Oil
3.04 Tap-changer pcs Off-load tap-changer
3.05 Pressure relief valve pcs Yes,with alarm and trip
3.06 Gas relay pcs Yes,with alarm and trip
3.07 HV&LV Cable Box & Extension Busbar pcs Yes
3.08 Bushing pcs Porcelain Bushing
3.09 Oil thermometer pcs Yes,with alarm and trip
3.10 Terminal box pcs Yes
3.11 Oil-level indicator pcs Yes
3.12 Oil Conservator pcs Hermetiacally-sealed tank
3.13 De-hydrating breather pcs N/A
3.14 Cooling device pcs Corrugated fins
3.15 Current Transformer pcs N/A
3.16 Lightning Arrester pcs N/A
3.17 Transformer wheel pcs Yes
IV OTHERS     
4.01 Dimensions (L*W*H) mm 1840*1740*1670
4.02 Total mass(with oil) kg 3680
4.03 Colour   RAL7035

 

 

11kV - 1250 KVA Oil Immersed Transformer Energy Saving Low Loss Economic

Contact Details
Pearl Electric Co.,Ltd.

Contact Person: Sandy

Tel: 86-020-22626603

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