20 KV - 1000 KVA Oil Type Transformer Anti Short Circuit Low Noise Safety

Basic Information
Place of Origin: China
Brand Name: Pearl Electric Co.,Ltd.
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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20kV - 1000kVA , Oil - Immersed Transformer, Three Phases, Two Winding, Power Distribution

 

Introduction


1. High mechanic strength, great anti-short circuit capability, excellent anti-lightning impulse capability and high reliability. All these performance indexes rank first in the industry in China.


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


3. Low loss, energy-saving, economic and maintenance free.


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.
 


HV winding:


 high quality copper conductor


LVwinding:


foil conductor,


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.

 

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.

 

4.8.3 Earthing

 

4.8.3.1 Core

 

The core shall be earthed to the core clamping structure at one point only, through a removable external link suitably situated, and protected to allow testing after installation of the transformer.

 

 Core clamping structure

 

The bottom core clamping structure shall be in electrical contact with the top core clamping structure through the tie bars, by way of the tank, or by means of a connection placed on the same side and end of the core as the removable core earthing link.

 

If a copper earthing connection is used between the core clamping structure and the tank, it shall be flexible, (e.g. laminated, stranded or braided), tinned at the ends, and shall be located on the same side and end of the core clamping structure as the removable core earthing link.

 

Care shall be taken to ensure that contact resistance between mechanical members that form part of any intentional current paths, be it circulating or to earth, is not detrimentally affected by any painting.

 

There shall be no sparking, that may upset Dissolved Gas Analysis (DGA) monitoring of the transformer, between bolted mechanical members during inrush or other transient conditions.

 

A drawing detailing the specifics of the earthing design is required as part of the transformer manuals and shall also be made available during the transformer design review.

 

 

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 1000
2.02 HV KV 20
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 1500
2.13 Load Loss (@75℃) W 10300
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 1700*2150*1570
4.02 Total mass(with oil) kg 3090
4.03 Colour   RAL7035

 

 

20 KV - 1000 KVA Oil Type Transformer Anti Short Circuit Low Noise Safety

Contact Details
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Phone Number : 86-020-22626603

WhatsApp : 008618826241798