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td1090 precision bushing-type ac i／v converter
精密交流 i/v 转换器，采用穿孔式结构，可方便串入钳形表检定装
一次电流最大可达 1 ka ( 2 ka 可选 )
二次输出标称电压均为 1 v
准确度等级为 0.01 / 0.005 级可选
交流频率范围：40 hz ～ 400 hz
overview
model td1090, a precision ac i/v converter, adopts a perforated structure design, easy to thread into the ac current output copper ring of the clamp ammeter calibration device (e.g. td1000, td1050 and td1050a) or other similar clamp coils. as a current measurement standard, applied to calibrate the output current of the clamp ammeter calibration device.
features
● the primary current is up to 2.2 ka (or 1.1 ka).
● the secondary output nominal voltage is 1 v.
● the optional accuracy classes are 0.01 and 0.005.
● wide measuring range of ac frequency from 40 hz to 400 hz.
● a built-in lcd digital screen to directly display the measured current and frequency.
● directly measure the ac distortion or dc ripple coefficient.
● passive form, high stability and reliability, extremely low change rate.
● minimal phase displacement, combine with v-v dividers to build measurement system for power, phase and power factor
selection guide
