SF11-12000/66 — YUANGUANG (YGT) 66 kV / 12,000 kVA OLTC Power Transformer | Uzbekistan EPC 2020
Product spotlights
Feature highlights:This 50 MVA 132KV electric power transformer features low local discharge, low loss, and high reliability, with a full-sealed suspending-cover free design for easy maintenance. Its iron core is made of high-permeable grain-orientated cold-rolled silicon steel sheets, ensuring reduced noise and improved no-load performance. The high-voltage coil adopts an interleaved-continuous structure for even voltage distribution and enhanced insulation reliability. With a warranty period of 12 months and compliance with IEC standards, it supports customization to meet specific user needs.
Project note
Model: SF11-12000/66
Type: OLTC Power Transformer (66 kV / 12000 kVA)
Phase: Three; Cooling: ONAN; Tap changer: OLTC
Core: CRGO silicon sheet; Winding: interleaved HV copper coil with zig-zag oil guide
Standards: IEC / GB / ANSI; Origin: Zhejiang, China; Supply ability: 5000 sets/year
Case note
Delivered 2020 to Uzbekistan EPC project — skid-mounted OLTC transformers with VPI; FAT witnessed and shipped under certified lifting plan.
Main Function And Features
220kv 110kv and 66kv low-loss series transformer is our independently developed new generation of transformers on the basis of absorption of domestic and foreign advanced technology, which feature low local discharge, low loss, low noise, high reliability, strange protection against abrupt short circuit. Its excellent performance has been recognized by wide users and highly appraised by experts. The full-sealed suspending-cover free products sell well nationwide.
220kv electric power transformer brand transformer
01) Iron core is made of cold-rolled silicon-steel sheet with high conduction of magnetism and adopts pulling-plank structure,so that its magnetic route is short, losses and noise level is low;
02) Compress wire is adopted for winding so losses are low and have good ability withstand short-circuit;
03) Its active part adopts special pressing method which could ensure reliable axial pressure;
04) The oil tank is bell type with the structure of full folding plate type, having an excellent exterior and easy for maintenance;
05) Adopting capsule-type oil container, it can reduce oil aging to the lowest degree.
06) Amount of local discharged: The apparent discharge amount is less than 80pC under the 1.5 times of rated voltage;
07) Noise: Products of 63MVA and below is lower than 58dB(AN);
08) Power loss: no-load loss is 30% lower than that of IEC standard;
09) Reliability: All in-service product have no damages or oil leakage occurred;
10) Short circuit withstanding: Model SFZ11-50000/132 smoothly passed the short-circuit withstanding test of the national transformer quality supervision and inspection center and also passed Holland “KEMA” quality Control system.
Main Technical Parameters for 220kv power transforer Level S(F)Z9, S(F)Z10,S(F)Z11 Series
three-phase two winding on-load-tap-changing power transformer:
| Rated power | H.V Tap range | Connection Symbol | ||||||||||
| (kVA) | High Voltage | Low Voltage | Short-Circuit Impedance | No-load Loss | On-Load Loss | No-load Current | ||||||
| (kV) | (kV) | (%) | (kW) | (kW) | (%) | |||||||
| 9 Type | 10 Type | 11 Type | 9 Type | 10 Type | 11 Type | |||||||
| 31500 | 220 | ±8 x1.25% | 6.3,6.6, | YNd11 | 12~14 | 38 | 34 | 30 | 135 | 128 | 128 | 0.7 |
| 40000 | 242 | ±8 x1.5% | 10.5,11, | 45 | 41 | 36 | 157 | 149 | 149 | 0.63 | ||
| 50000 | 20,34.5, | 54 | 49 | 43 | 189 | 180 | 180 | 0.56 | ||||
| 63000 | 35,37, | 63 | 57 | 50 | 220 | 209 | 209 | 0.56 | ||||
| 90000 | 38.5,66, | 80 | 72 | 64 | 288 | 274 | 274 | 0.49 | ||||
| 120000 | 69 | 99 | 89 | 79 | 346 | 329 | 329 | 0.49 | ||||
| 150000 | 116 | 104 | 93 | 405 | 385 | 385 | 0.42 | |||||
| 180000 | 135 | 122 | 108 | 468 | 445 | 445 | 0.42 | |||||
Coil:The high-voltage(HV) coil adopts an interleaved-continuous structure to improve the voltage characteristics under impact voltage and make voltage evenly distributed. All stays and pads are chamfered to keep highly reliable insulation.
Core
1) The core is made of high-permeable grain-orientated top quality cold-rolled silicon sheet and the material is cut with advanced Germany Geoge GmbH automatic shear line with the cut burrs controlled within 0.02mm.
2) The silicon sheet fabrication adopts “no-upper yoke-lapped’ technology and all lapped joints of the silicon sheet are 45 full-miters. this effectively improves no-load performance and reduces noises.
Oil tank and accessories
The tank wall adopts wide steel sheet, which will be folded into corrugated structure without splicing , in this way welds are decreased and mechanical strength is enhanced ; meanwhile , the corrugated wall has diverging effect, and thus plays a role in decrease of noise.
Our Services
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 testinng.
3. After sale service
a. installation and commissioning
b. training the workers
c. quick response within 12 hours any time
d, provide 12 months gurantee period normally.
Key attributes
Place of Origin
Zhejiang, China
Coil Number
Two
Coil Structure
Toroidal
Phase
Three
Model Number
SFZ-50000/132
Brand Name
YUANGUANG
application
Power
Frequency
50Hz
Certification
ISO9001:2008
Rated capacity
50MVA
Rated voltage
132KV
Material
Copper Winding
Iron core
Silicon sheet
Windings material
Copper
Transformer type
Power transformer
Application
Power Distribution System
Type
Customized according to customer requirements
Packaging and delivery
Packaging Details
Main body in nude , the accessories packing in seaworthy standard wooden case
Port of dispatch
Ningbo or Shanghai
Selling Units
Single item
Packaging examples
Supply capacity
Supply Ability
120 units per Year
FAQ
1. Q: What is your minimum order quantity?
A: 1 set.
2. Q: What is your delivery time ?
A: Depend on the type of transformer.
3. 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.
4. Q: What kind of starndard you follow?
A: IEC, ANSI, CSA, GB, etc
5. Q: What kind of supporting documentation you can provide normally
A: Quotation,outline drawing,manufacturing plan, quality control plan
testing plan, financial report, type test report(KEMA, CESI),reference list,etc
6. Q:What is your normal wanrranty period?
A: 12 months after transformer operation.
7. Q: Can u do installation and commissioningin user's site?
A: Yes, we can send our installation team to user's country for service.
8. Q: Do you have any experience in this kind of transformer?
A: Yes, we can provide reference list for check.
9. Q: Are you manufacturer or trading company?
A: Manufacturer and Trading company.
CTA & Contact Block
Request a Quote
— RFQ form: Company / Contact / Country / Product / Model / kVA / Voltage / Quantity / Drawings upload / Decision date.
— RFQ form: Company / Contact / Country / Product / Model / kVA / Voltage / Quantity / Drawings upload / Decision date.
Technical Contact: Orin Fang
— orin.fang@cnyge.com
— orin.fang@cnyge.com
— WhatsApp: +86-15305704090
