BNB 8654 C HV Line Stabilization Network (LISN)

A LISN, here implemented as a battery impedance network, shall supply electric power to the device under test (DuT) and provide a standardized impedance. It has been developed for automotive tests e.g. to fulfill the requirements of the manufacturer ISO 21498-2:2021-03 MBN 11123:2021-08. The standards and BNB 8654 C is constructed symmetrically with two paths, “HV+” and “HV-“, with selectable power resistors in each path.

A battery can be simulated by various internal resistors. Six possible values are available for Rint: 2 x 100 mΩ, 2 x 60 mΩ, 2 x 50 mΩ, 2 x 25 mΩ, 2 x 10 mΩ and 0 Ω (one resistor in each path).

At the mains connection, marked as "HV-" and "HV+" (Fig. 2), a blocking capacitor with up to 10 mF can be connected (capacitors C1...C4 are connected via bridges B8...B11 - see Fig. 2).

The built-in components have no specific polarity. The paths are isolated from the housing.

The BNB 8654 C is liquid-cooled, an appropriate cooling device must be provided by the customer.

The self-inductance between the resistance connections on the EUT side is about 0.3 μH.

Specifications:
Max Voltage	1000 VDC
Max Continous Current	500 A/ 2x 100 mΩ
Max Current (Limited Time)	500 A / 2 x 60 mΩ 1000 A / 2 x 25 mΩ 800 A / 2 x 10 mΩ
Impedance	2 x (Rint in series with 1μH) (Rint = 50/25/10mΩ)
Self-Inductance	typ. 0.3 μH
LISN Inductance	2 x 1 μH
Weight	80 kg
Dimensions W x H x D	446 mm x 535 mm x 770 mm

Hazard warnings

Only qualified personal may use this device.

Voltage supply and DuT may only be connected or disconnected when all components of the BNB 8656 C are completely discharged and no voltage can be measured at the terminals.

Disregarding this rule is life threatening!

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