Reliable measurement of DC currents up to the kA range with a high level of accuracy.
Maconic shunt resistors are the result of many years of experience in the design and production of such resistors. They are carefully manufactured using high-quality materials. The resistor bars are made of manganin, a special manganese-copper-nickel alloy, so that a very low temperature coefficient is achieved.
Dimensioning and mechanical construction are such that the resistors only moderately heat up until the rated current is reached.
The shunt resistors and associated shunt isolators achieve a 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.
Due to the low shunt voltage of 60 mV, the dimensions of the shunt resistor can be comparatively small – and this is not at the expense of measurement accuracy because the shunt isolators from Knick are optimized for their special task.
Safe measurement of currents associated with high system voltages up to the kV range is also possible.
The 3-port-isolated transmitters provide a correspondingly high galvanic isolation and are rated at 3.6 kV working voltage / 15 kV test voltage.