rogowski and current measurementworld leaders in the design and manufactureofwide-bandwidthcurrent measuring devices based onrogowskitechnology.
pem has sold its high performance ac current transducerstoover35 countries and can count majorinternationalcompanies,government bodies and research institutionsas itscustomers.
before pem\'s existence, rogowski transducerswererelativelyunknown and only used for a few specialistapplications.pem canjustly claim to have pioneered the generalpurposerogowskitransducer as a readily available widebandcommercialproduct.since its first range in 1991 pem has continuedtoprovidestate-of-the-art rogowski transducers across a broadrangeofapplications and provides advice and assistance toengineerswithcurrent measurement problems.
pem remain committed to research into the performanceofrogowskicurrent transducers as well as other novelmeasurementtechniquesfor electric current, voltage and power.
why choose a rogowski current transducer from pem?pem have numerous publications and patents relatingtorogowskitechnology. this in-depth knowledge enables pem toprovidea highlevel of technical support for our standard productsand toofferour expertise in design and manufactureforcustomapplications.
pem’s rogowski current transducers have many benefits:
simple to retro-fit, the clip-around rogowski coil sensoristhin,lightweight, flexible and robust
coil size is not dependant on the magnitude of the currenttobemeasured:
coils small enough to fit between the legs ofato-220semi-conductor;20m coils to fit round a wind-turbine.
non-intrusive (presents the equivalent of only a few phtothecircuit under test)
wide-bandwidth devices with predictable frequencyresponse,idealfor power quality measurement or monitoringcomplexwaveforms.
intrinsically safe - no danger of an open circuit secondary.
galvanic isolation
excellent linearity (rogowski coils have no magneticmaterialstosaturate)
capable of taking huge overload currents without damage
immune to dc currents - as a result it can measuresmallaccurrents in the presence of a large dc component
产品特点
cwt系列交流电流探头是实实在在为您解决电力电子的电流测量问题的转换工具：高带宽、大容量的测量范围，配合高质量的测量指标，保证您的测量要求；纤细、柔软的感应套环，让您轻而易举地与实际测量对象相连接。全新改进建立质量–新的“clipin”感应套环功能部件;全新电源-允许使用4只标准15vaa碱性电池，可持续工作70小时,附加12—24v直流插座;全新高灵敏高测量范围–可测量30a、60a和150a的峰值电流;全新自动消除直流偏置
主要特点：
测量范围：300ma～300,000a；典型带宽：1hz～13mhz；纤细、柔软的高性能感应套环：近乎为零的干扰：在测量过程中，实际负载电流仅为几个皮亨；轻而易举地与实际的测量对象相连接；感应套环的峰值电压绝缘能力可达10kv；感应套环周长由300mm～1000mm，超出该范围的，可根据顾客的实际需求定制；瞬时电压的输出为峰—峰值±6v，可以直接与示波器、数据采集设备、数字电压表以及电力记录设备相连接，也可以作为触发输出；精度可达1% 。
实际应用
监控、观测半导体开关的电流波形；电力电子设备的维护和改善；检测高频正弦电流波形；测量漏电流及电路断路器的断路电流；测量脉冲电流；测量加载在直流高电流中的交流电流；测量电流中的谐波组成；测量三相供电系统中的信号电流和地线上的漏泄电流；
cwt英国pem交流电流探头详细资料
型号 灵敏度(mv/a) 峰值 最大
噪声(mvpk-pk) 衰减特性
（%/ms） 低频带宽
（hz） 50hz时相位超前（deg） 高频带宽
(mhz)
电流
（ka） di/dt
(ka/µs)
线长300
(mm) 线长700
(mm)
高分辨率测量：>300ma
cwt015(new) 200.0 0.03 0.2 6.5 130 150 2.0@6khz 6 4
cwt03
(new) 100.0 0.06 0.4 4.5 90 105 2.0@4khz 10 6.5
cwt06(n) 50.0 0.12 0.8 3.0 70 80 2.0@3khz 16 10
cwt1 20.0 0.3 2.0 2.5 40 50 1.9@2khz 16 10
cwt1n 20.0 0.3 2.0 2.0 20 25 1.9@1khz 10 5
cwt3 10.0 0.6 4.0 8.0 3.0 3.5 1.0@300hz 16 10
标准精度测量：>15a
cwt3n 10.0 0.6 4.0 14.0 0.9 1.0 1.7 10 5
cwt6(new) 5.0 1.2 8.0 14.0 0.9 1.0 1.7 16 10
cwt15 2.0 3.0 20.0 7.0 0.7 0.8 1.3 16 10
cwt30 1.0 6.0 40.0 5.0 0.5 0.6 0.9 16 10
cwt60 0.5 12.0 40.0 3.5 0.35 0.4 0.6 16 10
cwt150 0.2 30.0 40.0 3.0 0.2 0.2 0.3 16 10
cwt300 0.1 60.0 40.0 3.0 0.1 0.1 0.2 16 10
cwt600 0.05 120.0 40.0 3.0 0.06 0.05 0.1 16 10
cwt1500 0.02 300.0 40.0 3.0 0.035 0.03 0.06 16 10

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深圳市迪福伦斯科技有限公司
陈春
15338796951
深圳市宝安区新安街道49区华创达文化科技产业园A栋1109