Compact Size Oil Immersed Transformer 6.6 kV - 1250 kVA Eco Friendly Three Phase

Basic Information
Place of Origin: China
Brand Name: Pearl Electric
Certification: KEMA, CE, CCC, ISO9001
Model Number: PEO-S, S9~13
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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Capacity: 1250kVA Or Customized Rated H. V.: 6.6kv Or Customized
Rated L. V.: 0.433kv Or Customized Vector Group: Dyn11 Or Customized
Impedence: 4.75% Or Customized Cooling: ONAN/ONAF Or Customized
High Light:

oil cooled transformers

,

oil type transformer

6.6kV - 1250kVA , 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:


1. High mechanic strength


2. Excellent overload capability


3. Low loss, energy-saving


4. Nice appearance, small size, less installation space occupation and low engineering cost.


5. Each performance index and technical specification excels that 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.


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.

 

Type-YW-series Tubing Oil Level Indicator

Mounting and Operating Manual

 

This series products is applied for oil-immersed enclosed type transformer.It is

mornted on the cover of the oil tank and indicates the oil level inside.When the

window at the top part of the oil Gauge gives blue color,it means the oil level is

normal,oil elvel is above the oil tank cover;Otherwise it will indicate abnormal when

red color appears and it means the oil level is under the tank cover,oil must be

refilled.M40×1.5 screws at the top of the Oil-level Indicator act as the interface for

oil-filling connecting bube,pressure relief-valve vacuum extraction.

 

Methods of making winding connections

 

All connections shall be rounded off to prevent sharp edges

 

Soldered and brazed connections

 

Soft solder shall not be used in making winding connections.

 

If brazed connections are used all traces of acidity shall be eliminated on completion of the process.

 

 Welded connections and joints in winding body

 

All welded copper connections shall be made by the metal-inert gas method or other specifically approved method. This applies particularly to conductor joints in the body of windings. All such joints shall be properly controlled by an approved quality control procedure.

 

 

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 6.6
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

 

 

Compact Size Oil Immersed Transformer 6.6 kV - 1250 kVA Eco Friendly Three Phase

Contact Details
Sandy

Phone Number : 86-020-22626603

WhatsApp : +008618826241798