分流电阻 | 高过载能力 | 不受外部磁场的影响

商品编号: maconic

Precise and long-term stable measurement of direct current

For currents up to 20 kA
with a standard program from 10 A to 8 kA
Low heat loss and low space requirement
due to small measuring voltages from 30 mV
Precise measurement
with accuracy classes 0.2 and 0.5
Special versions for energy measuring systems on rail vehicles
according to EN 50463
High overload capacity
without residual measurement failure
No influence from current peaks or neighboring cables
due to the measuring principle
Low temperature coefficient
and thus small measurement failure due to temperature influences
Safe electrical isolation and short response times
through a combination with measuring transducers from Knick
Galvanic isolation between power section and control
up to 3.6 kV working voltage / 15 kV test voltage
Conversion to standard signals
±20 mA, ±10 V, 4 to 20 mA
5 year guarantee

The meticulously produced shunt resistors feature resistor rods made of manganin with low self heating and an exceptionally low temperature coefficient. The variants with a rated voltage drop of 30 mV distinguish themselves from the 50 mV or 60 mV versions thanks to more compact dimensions and significantly lower power dissipation, which greatly reduces the effort required for electrical enclosure cooling. Knick’s transducers and signal conditioners from the P41000, P51000, P29000, P27000, and BL591 series, which are adapted optimally to the shunt resistors, are available for current measurement.

The shunt resistors and associated shunt isolators achieve very good long-term stability, which guarantees the specified accuracy over the normal periods of application of many years. Current peaks do not cause any offset or drift. Protection equipment based on current measurement benefits from the reliability and long-term stability of the measurement and achieves a particularly high level of safety performance.

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技术细节

工作环境温度:	–10 ... 55 °C
功能:	用于测量电流的分流电阻
输入:	0 ... 1 A 至 0 ... 20 kA
输出:	0 ... 30 mV, 0 ... 50 mV, 0 ... 60 mV
尺寸（宽 x 长 x 高）:	取决于输入值
产品类别:	通用隔离器 / 标准信号隔离器, 高压隔离放大器