变压器专业重点英语词汇汇编二〇一〇年五月Power transformerPower transformer with on load tap changer (off-circuit tap changer) 电力变压器有载分接开关（断电路分接开关）Distribution transformerAuto transformer 自耦变压器Interconnecting transformer联络变压器Step up transformerStep down transformerGenerator transformerSubstation transformer 配电发电机Converter transformer换流变压器Transformer with split windings分裂变压器Power plant transformer厂用变压器Single phase transformerThree phase transformerOil immersed transformerDry type transformerCast resin transformer浇注式树脂变压器Gas insulated transformer气体绝缘变压器Three phase bank with separate single-phase transformer Furnace transformer 电炉变压器Rectifier transformer整流变压器Traction (locomotive) transformer牵引（机车）变压器Mining transformer矿用变压器Testing transformer 试验变压器Cascade testing transformer级联试验用变压器Three winding transformerMovable substation 移动变电站Complete substationCurrent transformer (CT)Voltage transformer (VT)Bus-type current transformer母线式电流互感器Porcelain type current transformer 瓷式Bushing current transformer套管式ctCapacitor type current transformer电容式ct Reverse type current transformer反向式ctCast resin current transformerCapacitor voltage transformerEarthed voltage transformerCombined instrument transformer组合式变压器Moving-coil voltage regulator 动圈式电压调节器Induced (induction) voltage regulator感应式Magnetic satuation voltage regulatorReactorSeries reactorShunt reactorIron core reactorAir core reactorConcrete reactorThree phase neutral reactorSlarting reactorInterphase reactorSmoothing reactorAre-suppression reactorSatuable reactorCore typeShell typeOutdoor typeIndoor typeNatural coolingForced oil forced air coolingDirected forced oil circulation coolingDirected forced oil circulation forced air coolingConstant flux voltage variation (C.F.V.V.)Variable flux voltage variation (V.F.V.V.)Combined voltage variation (Cb.V.V.)Oil-immersed natural cooling (ONAN)Oil-immersed forced air cooling (ONAF)Oil-immersed forced oil circulation forced air cooling(OFAF) Oil-immersed forced-directed oil circulation forced air cooling(ODAF)CoreCore formShell formLaminationCold-rolled grain oriented silicon sheet steel45°mitred jointWindingLayer windingDisc windingContinuous windingHelical windingInterleaved windingInternal shield windingTankBarrel type tankBell type tankTank wallTank coverTank rimClampConservatorBushingDraw-lead type bushing Cable-through type bushing Tap changerOn-load tap changerNo-load tap changerDff-circuit tap changer De-energized tap changer Oil level indicator Pressure relief value Dehydrating breather Activated aluminaSilica gelDriving mechanismMotor drivePosition indicator ContactsNormally-opened contacts Normally-closed contacts Fixed contactStationary contact Moving contactRadiatorPanel type radiator CoolerValueGate valueBall valueCut-off valueButterfly value Buchholz relayGas relayVoltage combination Rated voltageRated currentRated powerRated voltage ratioNo-load currentExciting currentNo-load lossAdditional lossStray lossesImpedance voltageResistance voltageReactance voltageVoltage regulationPhase displacementZero-sequence impedance FrequencyPower frequencyMedium frequencyHigh frequencyOscillating frequency Resonance frequencyNatural frequency of vibration Frequency responseDielectric strengthMain insulationLongitudinal insulationMinor insulationDielectric constantOil-paper insulation systemInsulation breakdownCreeping distanceDischargePartial dischargeDistractive dischargePartial discharge inception voltagePartial discharge extinction voltage OvervoltageShort-time overvoltageSwitching overvoltageAtmospheric overvoltageRated withstand voltageShort-duration power-frequency withstand voltage Rated lighting impulse withstand voltageRated switching impulse withstand voltage ShieldingElectrostatic shieldingApparent chargeFull wave lighting impulseChopped wave lighting impulseTime to choppingTime to crestTime to half value of crestPeak valueRoot-mean-square value(r.m.s)Per unit valueNominal valueDielectric dissipation factor(tg8)Corona dischargeFlashoverInsulation resistanceArrester(surge)Induced overvoltage withstand testShort-circuit testTransformerTransformer is one of the static electrical apparatus to be used to change voltage and current between the primary and secondary sides by means of electro magnetic induction.No-load loss:No-load (exitation) losses are losses that are incident to the excitation of the transformer. No load losses include coreloss、dielectric loss、 Conductor loss in the winding due to excitation current and conductor loss due to circulating current in parallel windings these losses change with the excitation current.H.V D.C convert transformer used for power transmission: Convert transformer is one of the very important equipments in H.V.D.C power transmission system, it can be used for interconnection between non-synchronous A.C networks and the delivery of power can be controlled . the converter transformer is high in reliability、 Low in losses、small in noise、 low in temperature rise and small in partial discharge . the 800KV convert transformer, developed and manufactured by TBEA for Yun Nan-Guang Dong 800KV extra H.V D.C power transmission project, has passed all of the routine and type tests successfully in August,2009. the 800KV extra H.V D.C power transmission project is the first line in the world until now and it is very important for further development in this fieldWinding assembly:Winding shall be installed to core limbs with integral assembly, and ensured its lightness. Winding and winding assembly shall be subject to constant pressure drying, to enhance its short circuit withstand capacity. High intensity of padding blockshall be provided to suffer drying several times and in order to enhance insulation electric and mechanic intension, active part shall be not allowed to be exposed outside for much time. Oil tank structure:Oil tank shall be bell type, which is better than conventional type in mechanical intension and seal. Abundant of magnetic shielding and copper shielding shall be installed on oil tank wlll and edge to prevent it from local heating and reduce stray loss. Only one point of magnetic shielding shall be grounded. Oil tank shall be subject to vacuum (residual pressure inside the tank < 13.3 Pa) and 0.098 Pa positive pressure after fabrication. In order to prevent oil leakage, flange shall have mechanical (machined) faces and be assembled with sealing stop match which ensures its sealing of transformer.Structure of insulation:Main insulation between windings shall be of structure with thin paper cylinder, small oil gap. More attention shall be paid to insulation level of the centre of winding. Accuracy electric field distribution and compositive electric field intensity shall be calculated by computation process. Insulation structure can be adjusted, and leads shielding shall be arranged according to the principal of equip-field intensity,to keep electric field distribution uniform and ensure insulation reliability.。