China Distribution Transformer Transformer Power Transformer

Technical parameters:220kV Combined Power Transformer(Two-Winding)
Voltage: 220+ - 2x2.5%/121/37
Connection group: YNd11
Winding combination: H--L
No-load current(%): 0.5
No-load loss(kW): 53
On-load loss(kW): 226
lmpedance(%): 13.32
Weight of active part(kg): 3 28290
Transport weight(kg): 3 35000 (filling with nitrogen)
Transport dimension (L W H mm): 3300x2480x2950
Capacity: 120000kVASFPS8-X-120000/220 MVA 120/120/60Cooling method
WindingConnectionOLTC PositionVoltage
(kV)Current A

(ONAN)Current A

(ONAF)
HVStar1207529.9892.5
9230176.9803.3
17253433.6730.2LVauto91328311400TertiaryDelta920685.511557. Vector Group YN d11

8. Impedance Voltage in Percent at 75
Power MVAwindingRated voltage kVImpedance voltage %40HV/LV230/13218
9. No-load Current: 0.2%:

10. Sustained Short Circuit Current.
WindingMax. Sustained Short-circuit Current. KaHV8.5
LV10.4
TV19
11. Max. Duration of Short-circuits in Seconds(s)HV: 3s
LV: 3 s
TV: 3s
Vector Group YND11
No-load losses 80kw
Load losses 383kw
No load current % 0.2
Short-circuit impedance% HV-LV 12-14Structure characteristic:
1,Iron core
1. 1The iron core adopts cold-rolled crystal-oriented silicon steel plate 30Z140 wGPS ith 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 Insulation 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,Packing Machinery marked, to ensure the
smooth procedure of site assembly. Before Ex-factory, inner core shall be check, and clean the fifth in
transformerReference:
Packing and Shipping
Service Guarantee
1.To provide all technical information and drawings as per contract promptly. VILLE is obliged to invite client, if
necessary, to attend technical design review.
2.To carry out spot technical service as per client's schedule, offer guideness for installation and commissioning
according to technical information and drawings.
3.For relevant auxiliary equipment procured by customers, VILLE will provide relate technical information to
meet requirement of equipment interface.
4.To execute stipulations in MOU or agreement signed by seller and buyer strictly.
5.To train staff from client for equipment installation, commissioning, application, maintenance as stipulated in
the contract.
6.To reinforce pre-sales, mid-sales, after-sales service, to carry out "24-hour service", "service in advance",
"overall process service", "lifelong service" in our manufacturing, installation, commissioning and maintance.
7.To meet spare parts' requirement by customers at anytime.Order Instructions
When you choose our company product, please offer following data:
Transformer model:
Rated capacity: kVA
Phase:Three-phase Single-Sound Module phase
Frequency: 50HZ60HZ
Rated voltage ( H.V. / L.V. ):
Tapping range: ± x %
Insulation level: LI AC / LI AC kv
Veotor group: Dyn11 Yyno Other
Short-circuit Impedance: %
Cooling method: onANONAF
Tapping method: OLTCOCTCOther
Other requirement:
Notes:
1.We also can design special products according to customer's particular requirements.
2.The final dimension is subject to outline drawing.1.Pre sale servicea.make technical solutionb.send quotation, technical data sheet and drawingc.prepare power transmission plan, testing plan and shipment plan2.In sale servicea.supervise the manufacturing schedule totally in accordance with the planb.send photos to customer during every manufacturing process(hold point)c.inform the customer one week before testing.3.After sale servicea.installation and commissioning, training the workersb.quick response within 12 hours any timec.provide 12 months guarantee period normally.
1. Q:What is your delivery time ?A:Depend on the type of transformer.2. Q:What is your payment term?A:30% advance by T/T , 70% before delivery by T/T or L/C or we can discuss about it.3. Q:What kind of standard you follow?A:IEC, ANSI, CSA, GB, etc4. Q:What kind of supporting documentation you can provide normallyA:Quotation, outline drawing, manufacturing plan, quality control plan
testing plan, financial report, type test report(KEMA, CESI),reference list, etc5. Q:What is your normal warranty period?A:12 months after transformer operation.6. Q:Can u do installation and commission in user's site?A:Yes, we can send our installation team to uMattress Machine ser's country for service.7. Q:Do you have any experience in this kind of transformer?A:Yes, we can provide reference list for check.
Our advantages:
Quality Assurance
--From the very beginning,VILLEensures quality in every step to achieve the best quality.
Experience Sharing
--With more than 30 years' experience in power industry,VILLEbrings you an optimized solution.
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--Wherever you are,VILLE global network will support and provide you with value.
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--In response to your needs without delay, VILLE knows the value of your time.Thanks for choosing VILLE as your reliable partner and
please trust both of us will create a brilliant future!