Power Transformer Electricity Transformer 500kVA 1000kVA 2000kVA

ProductPower transformerRated voltage12KV, 24KV, 36KV,110KV,220KV,330KV,550KVRated volumeas per requestWinding materialAlu.,copper,amorphous  Product DescriptionNormal operation condition Altitude      < 1000 m IndoorMax. Ambinet temperature     +40ºCMax. Daily average temperature       + 30ºCMax. annual average temperature    +20ºCMin. temperature  -5ºCSupply transformers operate under special conditions according to customer requirements.Features:1) Amount of local discharged: The apparent discharge amount is less than 80pC under 1.5 times of rated voltage;2) Noise: Products of 63MVA and below is lower than 58 dB (AN);3) Power loss: no-load loss is 30% lower than that of IEC standard;4) Reliability: All in-service products have no damages or oil leakage occurred;Application:10 ~550 kV power system of power plant, substation, mining enterprise and etc.Technologies:Design: relative developed software are adopted in Electromagnetic calculations, strength analysis, leakage magnetic distribution, its electro-dynamic force and electrical insulation.Manufacture:Core: effectively upgrade transformer's no-load performance by below methods: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 burs 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. The laminated core sheets are integrally pressed and adhered with epoxy resin to make the three leg two-yoke core a strong and flat integral one with good verticality precision, this effectively improves no-load performance and reduces noises.3) Bracing plates are used as support between coil leg and inner coil. The iron yoke is tied with epoxy resin-impregnated glass fiber band, and the lower section of oil tank is tightened with counter-pressure bolts. The upper iron and the upper section of oil tank are fixed at three locations. Hence the body inside the oil tank can withstand the vibration during transportation without any shift.Winding:1) 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.2) In the transformer winding there is a zigzag oil guide structure so as to fully cool all areas inside the winding, lower the temperature rise of the winding and the hot points of the winding and prolong the service life of insulation. The HV and MV regulation system are independently provided with voltage-regulating winding to balance the ampere turn of each winding, effectively lower the axial electrodynamic force generated at short-circuit of transformer and improve abrupt short-circuit withstanding capacity.3) The winding adopts radial "0" margin designed, between the core and the paper sleeve of LV winding, and between the LV, HV, voltage-regulating windings, as well as before insertion of stays and shroud plate they are fully dried and tightly matched to ensure extremely good compactness and concentricity of the entire winding. Product Parameters  Detailed PhotosCertificationsCompany ProfilePackaging & Shipping   Our Advantages1. R&D AbilityWe are specialized in the field for more than 10 years, and has a well experienced R&D team taking the design and development work for each project based on customer's special demands.   2. QC TeamWe have extremely strict QC procedure from components to finished products.   3. Production CapacitySteady production period within 15 days.   4. High Quality ProductWe have full set of test reports for products and are supplying for the world's largest utility - State Grid Corporation of China(SGCC) and China Railway Construction Group.  FAQQ1: Are you factory or trading company? A: Factory, we can guarantee our price is reasonable and competitive.   Q2: When can I have the price? A: Usually we quote within 24 hours after receiving your inquiry.   Q3: How could I get a sample? A: If you can not buy our product in your local area, we will ship a sample to you. You will be charged of sample price plus all related shipping costs. Q4: Can we print our logo and company name on products? A: Yes, of course, we accept OEM.   Q5: What is the lead time? A: The lead time depends on the quantities ordered, normally within 7-20 days after receiving the payment.   Q6: How's your quality control process? A: All products will be inspected starting from accessories, and will be carried out with routine tests before leavingour factory.   Q7: How to solve the quality problems after sales? A: Take photos or video of the quality problems and send to us for our checking and confirming, and we will make a satisfied solution for you within 1-3 days.   Q8: What's the warranty time? A: 12 months from shipping date.Q9: Why choose us?A:1.We are spec