NNHV 8123-800R Single Wire Automotive Artificial Network 1000V800A

Product Description:

NNHV 8123-800R is a single-wire automotive artificial network produced by German schwarzbeck company, the maximum voltage is 1000V, the maximum current is 800A, designed for automotive and on-board electronic parts and components in accordance with the requirements of the CISPR25 standard to do the conduction emission test, because of its high-voltage characteristics, so it is generally now used for electric vehicle (EV), Because of its high voltage characteristics, it is now generally used for electric vehicle (EV), hybrid drive and on-board battery electronics testing, as well as testing and EMC certification in the field of new energy vehicles.

Design Principles:

The impedance of this LISN can be switched 5 µH in parallel 50 Ω or (5 µH + 1 Ω) in parallel 50 Ω. The impedance characterization is basically achieved by connecting the inductance in parallel with the input impedance of the measurement receiver. We will teach how to switch the impedance to measure different EMC standard requirements during the in-home training. The schematic of the two impedance switching is shown below:

Supports 1Ω impedance switching

The main application of the asymmetric single AMN (artificial grid) NNHV 8123 - 800 R is the measurement of interference voltages for electric vehicles using shielded cables in the HF-VHF range 0.1 MHz - 150 MHz according to CISPR 25 version 4 or BMW GS 95025-1. It can also be used for BCI testing using external 50 Ω terminations.

This LISN is designed to be mounted in pairs in the shielded enclosure HVSE 8601 and each NNHV 8123 800 R can be used to measure either positive or negative power lines. So in order to be able to measure HV+ and HV- you will need to contact EUTTEST to purchase 2 identical 800 R products. For substantive measurements, the device under test must be connected to the terminals on the front panel. The supply voltage must be connected to the rear panel. The shield of the cable is connected to theHVSE 8601on the feedthrough shield connector.

In addition, this is a LISN that is compliant with multiple EMC standards:

• ECE R10
• CISPR 12
• CISPR 25
• BMW GS 95025-1

Differences from the 800 version:

Schwarzbeck also produces a model number NNHV 8123-800 The difference between the two products is that the 800R can switch 1Ω parallel impedance, but the maximum voltage and current of the 800R is less than the 800 version.

Technical parameters：

Product Specification Sheet:

NNHV 8123-800R Impedance at EUT Port

The chart below shows the partial pressure coefficients for this product.

NNHV 8123-800R Voltage division factor measured with a network analyzer

Order No. EUTS0786

Schwarzbeck Official Authorized Dealer:

EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG

Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.

Click to view the image of the authorization