PVDC 8301, 150 kHz - 30 MHz, 200 A, DC-AMN (LISN) Photovoltaic Inverters

  • symmetric DC-LISN Line Impedance Stabilization Network
  • 150 kHz - 30 MHz
  • Max current 200A, (250A 15min)
  • Impedance CM and DM: (150 +/- 20) Ω
  • AMN Impedance A or B: (150 +/- 20) Ω

MARKETS:

TEST STANDARDS:

Data Sheet

SPECIFICATIONS

 

PVDC 8301, 150 kHz - 30 MHz, 200A, DC-AMN (LISN) Photovoltaic Inverters


The conducted emissions of photovoltaic inverters at the mains terminals are usually measured using LISN according to CISPR 16-1-2. The circuit concepts of PV-inverters may cause ripple currents on the DC-side of the inverter. These ripple currents are passing through the cabling and the PV-generator modules and can be radiated as magnetic fields with sometimes remarkable disturbance effects. Traditional measurements at the PV-inverters' AC terminals will not be able to reveal such disturbance phenomena. The PVDC 8301 was specially designed to measure all kinds of disturbance voltages at the DC-side of photovoltaic inverters. These are in detail the disturbance voltage of one conductor above reference ground (unsymmetrical disturbance voltage), the common-mode disturbance voltage of a pair of conductors above ground (asymmetrical disturbance voltage), and finally, the differential mode voltage between two conductors.

Application:

The symmetric DC-LISN PVDC 8301 can be used for measuring of the disturbance voltage in the frequency range from 0.15 MHz to 30 MHz on photovoltaic inverters. It is designed with air-core or iron-free inductors to prevent intermodulation. The permitted continuous current is 200 A with activated fans. Without fans 100 A continuous current can be supplied. Short time currents over 250 A can be applied. The temperature of the built-in inductors may not exceed 150°C. The device under test is connected to the wing terminals of the front panel. The PV-generator or the PV-simulator is connected to the rear side.

The capacitor C3 was limited to 0.22 μF to avoid possible malfunction of the EuT. This leads to a differential mode decoupling of more than 20 dB. If higher decoupling values are required (e.g. 40 dB or more), the use of an additional 1 μF / 1500 V DC capacitor at the AE-terminals will bring significant improvements.

 

Specification  
Frequency Range: 0.15 MHz - 30 MHz
Max. cont. Current: 200 A
Max. Current (limited time, 3 min): 250 A
Max. Voltage (DC): 1500 V
Common Mode Impedance (Mode switch CM, A, or B): (150 +/- 20) Ω
Differential Mode Impedance (Mode switch DM): (150 +/- 20) Ω
Insertion loss (EUT - AE): >20dB
Voltage Division Factor at the measuring port (EUT - Monitor): Typ. (20 +/- 3) dB (10:1)
EUT Connector:  wing terminals 

Dimensions (W x H x D):

448 x 295 x 600 mm
Weight: 30 kg

 

 

 

 

 

 

 

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