Ningbo Ville Electric Co., Ltd.  

Product Name: Lvb (T) -220 Series Inverted Structure with Oil-Immersed Paper Insulation of Current Transformers Model NO.: LVB(T)-220W3/2X Voltage Transformation Principle: Photoelectric Type Magnetic Circuit Structure: Combined Type Installation: Active Type Insulating Medium: Insulating Gas Winding Form: Multilayer Honeycomb Type Usage: Protection, Measurement Operation Condition: Outdoor Phase: Single Type: Current Transformer Application: Instrument Trademark: VILLE Transport Package: Wooden Cases Specification: Customized Origin: China HS Code: 85 Product Description LVB(T)-220 Series Inverted structure with oil-immersed paper insulation ofcurrent transformersGeneral:LVB (T) series current transformer has an inverted structure with oil-immersed paper insulation (Please see theleft figure).It is connected in series with electric energy measurement, measuring, relay protection and transient protectionfunctions.Primary coil has a through-type conducting rod structure with good dynamic and thermal stability; its maximumthermalcurrent can be up to 63kA/3s (when primary coil is connected in series).Primary coil passes through the center of secondary coil without flux leakage. Measurement precision can be upto 0.1and0.2S grades.Secondary coil is fixed in an aluminum shielded-case by casting organic materials; secondary measurement andprotection circuits cannot be damaged by insulation breakdown.Optimal capacitor screen bushing is made of a complete piece of imported broadsheet cable paper; it is coiledby anautomatic wrapping machine which is controlled by a computer with high performance. It has atechnological de-centralityand an excellent insulation property. Partial discharge test is carried out under powerfrequency test voltage.Use the automatic vacuum drying treatment system produced by LEYBOLD in Germany, carry out pressure-changingvacuum drying treatment and oiling after a product is assembled completely, and all insulationmaterials are imported fromforeign countries. All these ensure that the dielectric dissipation factor of completeproduct tan is less than 0.3%.External insulation uses a porcelain cover with high strength, optimal surface field intensity together with lowerfieldintensity of internal bushing make the porcelain cover avoid explosion.Secondary outlet box is a complete structure by casting the aluminum alloy; its sealing structure meets therequirementof IP55, which is dust proof, water proof and air permeable; secondary terminal for wiring usesPhoenix special terminal; itis more convenient for operations such as plug-in, pull-out and wiring etc.Connection between components uses argon-arc welding, fill in high pressure nitrogen to detect leakage afterassemblyis complete, so oil penetration and oil leakage caused by oil-immersed products are resolved at root.Use an aluminum alloy cast case, all components including the base, connection box, stainless steel expander,andnameplate etc do not rust forever.It is light and handy with a small volume and light weight.Symbol ExplanationNote:1 The Company reserves the right to change the parameters in the table.2 When the parameters required by the customer are different from that in the table, they can be negotiated according to therequirement of the customer.3 There are several current ratios for one-time switch of the transformer.4 We also can provide with products which meet the requirement of IEC and ANSI.Outline and Dimensional DrawingOur Best Service For You1.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.FAQ For You1. 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 plantesting 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 user'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.Global Service--Wherever you are,VILLE global network will support and provide you with value.Quick Response--In response to your needs without delay, VILLE knows the value of your time.Thanks for choosing VILLE as your reliable partner andplease trust both of us will create a brilliant future!