The single path high current Line Impedance Stabilisation Network (LISN, AMN) NNLK 8140 mainly serves to measure disturbance voltage in band B from 150 kHz to 30 MHz. It is designed to withstand very high currents and voltages. So far voltage probes had to be used for high currents and high voltages. However voltage probes do not provide a standard impedance to the device under test so a voltage probe measurement has reduced reproducibility. The NNLK 8140 providing a continuous current capability of 800 A solves this problem.
The impedance of the NNLK 8140 is compliant to CISPR 16-1-2 with 50 μH || 50 Ω. The LISN provides power to the DuT with very low voltage drop. It can be used for DC, AC or three phase rotary current. Assuming a rotary current system with 400 V between L1 and L2 and L3 DuTs up to 1 MW can be driven using 3 units of NNLK 8140.
Specifications:
Frequency range: 150 kHz – 30 MHz
Max. cont. current: 800 A
Max. current (limited time): 1000 A
Max voltage (DC): 1000 V
Max. voltage (AC 50/60 Hz): 1000 V
Max. voltage (AC 400 Hz): 500 V
Impedance: 50 μH || 50 Ω (+/- 20 %)
DC-Resistance mains-EuT: < 3 mΩ
Impedance (50 Hz): 16 mΩ
EuT Connectors: Wing terminals (M16x1.5 removable)
