Zs 1650kVA 10kv Oil-Immersed Rectifier Transformer

Product Descriptionzs Series Oil-Immersed Rectifier Transformer SpecificationsZS Series Oil immersed Rectifier Transformer : Toroidal coil stucture,loss,Low noise,Low partial discharge,no leakage                   Rectifier transformers are combined with a diode or thyristor rectifier. The applications range from very large aluminum electrolysis to various small and medium size operations. The transformers may have a built-in or separate voltage regulation unit for direct output regulation of diode rectifiers , and correspondingly a power factor improvement with a thyristor rectifiers. Features:1)    Low loss 2)    Low noise 3)    High efficiency 4)    Low partial discharge 5)    Strong mechanical strength and short-circuit withstand ability . 6)    Operation reliability 7)    Easy maintenance 8)    Pretty outline and compact structure 9)    100% guaranteed no leakage Brief specification1)    Voltage class: 6~110 KV 2)    Capacity : 630 KVA to 120,000 KVA 3)    Short-circuit impedance : 4.5~21% Losses: No-load losses is fully comply with IEC standard requirements Application:1)    Aluminum smelting 2)    Magnesium smelting 3)    Copper smelting 4)    Zinc smelting 5)    The largest installations are those for aluminum electrolysis with several transformer/rectifier units in parallel operation to achieve the required DC current, in all cases the rectifier can be with diodes or thyristors. Main Technical Parameters for 6kV~110kV Level ZSSP Series             Oil-immersed type rectifier transformer: TypeRated Power (kVA)Rated Voltage(V)Connection SymbolWeight(kg)Overall dimensionL×W×H(mm)Line sideValve sideActive partOilTotalZSSP-400/104001000050Dy11y111225135740202690×1740×2150ZSSP-500/6.35006300193Dy11y5110078027202080×1340×2060ZSSP-500/1050010000119Dy11y5138091030201750×1490×2220ZSSP-630/1063010000255Dy11y11160091033501885×1460×2165ZSSP-800/0.5800380168Dy11y5157090037101850×1900×2320ZSSP-800/1080010000168Dy11y5166598039001925×1900×2380ZSSP-900/0.5900380209Yyn6yn0170096038002050×1800×2320ZSSP-1000/10100010000140Dy11y53500184068402700×1900×2500ZSSP-1250/10125010000280Yy6y02640146054502170×1660×2560ZSSP-1500/10150010000239Dy11y52660156058702380×2120×2580ZSSP-1600/10160010000246Dy11y52730164061602400×2140×2580ZSSP-1800/35180035000211Yy6y03300220073002550×1830×3080CertificationsCertificates owned by shenda: 100MVA/220kv power transformer short circuit test report -issued by CESI Italy&CTQC China 120MVA/33KV oil EAF transformer 50MVA/69KV oil power transformer 10MVA/33kv dry-type transformer Type test report -issued by KEMA Netherlands 63MVA/110KV Power transformer short circuit test report -issued by CTQC China 12.5MVA/22KV Rectifier transformer routine test -issued by V-Check korea ISO 9001&ISO14001&OHSAS 18001 CE-POWER TRANSFORMER&FURNACE TRANSFORMER&DRY-TYPE TRANSFORMER&REACTOR Transformer CharacteristicsWinding .The winding must be especially protected - both against high electrical stress due to external over voltages and against mechanical overloads by short circuits. They are made of copper or aluminum. Low-voltage windings are made of strip or flat wire while high voltage windings are manufactured from round or profile wire. ("diamond-dotted paper") bonds the winding into a compact block while drying and increases the short-circuit capacity additionally. Magnetic Core lamination.The three-limb iron core is made of oblique cut Grain-oriented, seven-step silicon steel lamination insulated on both sides, guaranteeing low losses and low noise. These values are even improved by laser treatment. It is protected on the surface with a flash-proof varnish in order to prevent the sheet from corrosion and to reduce the noise. Oil tank.Whether during transport or operation -the tank must be absolutely tight under mechanical stress. We have vast constructional experience, the most modern calculation methods and high-quality welding work. Special attention is paid to corrosion protection. Pretreatment of the surface is processed by phosphating pickling, contributes to corrosion protection, just like multi-coating with preset drying times for each layer. On request, hot-dip galvanization provides for even better protection Test labTesting are conducted for every transformer before delivery.Tests are classified to be routine tests and type test. A - Routine tests: According to IEC 60076 standard , the following tests must be carried out for all units of the transformers a- Measurement of winding resistance . b- Measurement of voltage ratio and check of phase displacement. c- Measurement of short circuit impedance and load losses. d-Measurement of no-load losses and current . e-Dielectric routine tests including the separate source AC voltage withstanding test and short duration induced over voltage withstanding test ( ACSD ) . B - Type tests : The following tests shall be carried out a- Temperature rise test b- Lightning impulse test C - Special tests : a- Determination of noise level according to IEC 60551 . b- Oil lea