300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer

Product Details
Customization: Available
Application: Power, Electronic, Industrial Company
Phase: Three
Gold Member Since 2007

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Basic Info.

Model NO.
S10 300000/220KV
Core
Core-type Transformer
Cooling Method
Oil-immersed Type Transformer
Winding Type
Two-winding Transformer
Certification
ISO9001-2000, ISO9001, CCC
Usage
Combined Transformer, Power Transformer, Three Phase
Frequency Characteristics
High Frequency
Shape of Core
Ring
Brand
Ville
Test Certification
CQC Transformer Test
Voltage Range Hv
220+-2X2.5% 242+-2X2.5%
LV
6.3/6.6/10.5/11/13.8/15.75/18
Rated Power Definitionwer
300000kVA
Tap Changer
Mr or Hm China
Vector Group
Ynd11
Transport Package
Wooden Cases and Main Body Nude Packing
Specification
IEC Standard
Trademark
vilLE
Origin
China
HS Code
8504231200
Production Capacity
1set/6monthes

Product Description

300000kVA 220KV S10 series Double-winding off-circuit-tap-changer 
Power Transformer 


Structure characteristic:
1,Iron core
1.1 The iron core adopts cold-rolled crystal-oriented silicon steel plate 30Z140 with high quality, low-loss, and no
time effect, sheared by Geroge line and with no burr. 1.2 Iron core adopts pulling board structure, the upper
and down yoke is clamped by board, to form the frame structure. The iron core adopts advanced lamination
process, which effectively controls the no-load loss and electro-magnetic noise.


2 Winding
2.1 Winding adopts mature structure, which ensure the reliability of transformer operation.
2.2 The insulation power field intensity between turns shall be controlled no greater than 1.6kV/mm.

3,Body
3.1 Body adopts mature insulation structure, and strictly guarantee the main axial insulation margin.
3.2 Body mostly adopt multi-coil whole assembly, processed in constant voltage and evaporation, which made
coil shrink evenly and with less rebounce, and enhance the electric strength and mechanical strength.

3.3 Adopt laminating wood board or thermal shaped insulation cardboard. Pressed tightly with pin, which ensure
the winding is constantly pressed tightly. 


4,leading wire
4.1 The layout of all leading wire is reasonable, which guarantees the enough electric distance and mechanical
strenth. 

4.2 All leading wire is cirlulized ,which guarantee the reliable wild or prize connection. 

5,Oil tank
5.1 Oil tank adopts structure of flat top, bell jar type, which add the mechanical strength of oil tank and also
make the appearance beautiful and graceful, site installation tend to be more convenient.

5.2 Pipeline with gas relay such as the oil tube and bushing hoist support on top of oil tank is with hoist
gradient, to facilitate the gas in transformer flow to gas relay.

5.3 Vacuum oiling is adopted, there is no leakage and permanent distortion in the following test. vacuum-
pumping :759mmHg load voltage test: bear 2 times the oil pressure of oil conservator oil surface for 24 hours.

5.4 The structure of transformer is convenient for disassembly and change of bushing and porcelain element.
5.5 The oil drip valve is set on the bottom of oil tank, sampling valve is set in the middle.
5.6 collective gas connecting tube is fixed on the bushing hoist support.
5.7 Transformer is of full-sealed structure, the upper and down oil tanks are required to welded fully. 

6,Oil conservation tank 
6.1 Adopt capsule type, finger type oil level indicator oil conservation tank. 
6.2 The structure is convenient for internal cleaning, the capacity can ensure no oil overflow in 40 ambient
temperature with full load, and oil shall be seen from oil level indicator before put into operation in -25.

6.3 Oil conservation tank is equipped with oil-sealed moisture absorber. 

7,Safety protection device:
7.1 Gas relay is fixed in transformer, the standard complies with ZBK41004-89Gas relay.
7.2 There is enough and reliable pressure release device, and matched with oil spray pipe, the direction of oil
spraying is downward. 


8,Oil temperature measuring device:
8.1 There is pipe support of mercury thermometer, which is  set on the top of oil tank.
8.2 There is temperature controller,  the accuracy of thermometer complies with the related standard. Quantity
and technical requirement shall as per tender document. 


9,Each component  of transformer shall be prefabricated once in manufacture factory, marked, to ensure the
smooth procedure of site assembly. Before Ex-factory, inner core shall be check, and clean the fifth in
transformer.


Technical parameters:
Rated Voltage and tapping range  
HV:220+-2X2.5%   242+-2X2.5%
LV: 15.75
Connection group symbol: YND11
Winding combination:H-L
No-load loss(kW):140
On-load loss(kW ):638
No-load current(%): 0.2
Short-circuit Impedance(%): 12-14

300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer
300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer

Reference:
300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer

300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer
 
Packaging Details: The accessories packed in plywood cases,the main body in nude.

Sales team:
300mva S10 Series 220kv Double-Winding off-Circuit-Tap-Changer Power Transformer

Our Best Service For You
1. Pre sale service
a. make technical solution
b. send quotation, technical data sheet and drawing
c. prepare power transmission plan, testing plan and shipment plan
2. In sale service
a. supervise the manufacturing schedule totally in accordance with the plan
b. send photos to customer during every manufacturing process(hold point)
c. inform the customer one week before testing.
3. After sale service
a. installation and commissioning, training the workers
b. quick response within 12 hours any time
c. provide 12 months guarantee period normally.

Order Instructions
When you choose our company product, please offer following data:
Transformer model:                     
Rated capacity:                     kVA
Phase       :    Three-phase
Single-phase
Frequency   :     50HZ
 60HZ
Rated voltage ( H.V. / L.V. ):                
Tapping range: ±       ×       %
Insulation level: LI       AC       / LI       AC        kv
Veotor group:  Dyn11
             Yyno
             Other
Short-circuit Impedance:        %
Cooling method:  ONAN
                ONAF
Tapping method:  OLTC
                OCTC
                Other
Other requirement:                                            

Notes:
We also can design special products according to customer's particular requirements.
The final dimension is subject to outline drawing.

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