Tekbox TBLDC32-2 V-Y-Δ DC-Line Impedance Stabilization Network

Tekbox TBLDC32-2 V-Y-Δ DC-Line Impedance Stabilization Network

The Tekbox TBLDC32-2 is a LISN (line impedance stabilization network) for the measurement of conducted emissions on DC lines within the range of 9 kHz to 3 MHz, according to the CISPR 16-1-2 and CISPR 11 standard. The LISN is designed for testing disturbance voltages at DC power ports of semiconductor power converters and similar equipment with DC supply voltages up to maximum 1000 V and 32 A. Conducted emissions can be measured on the forward and return supply line. Furthermore, the rotary switch at the front panel enables measurement of common mode and differential mode emissions. The Tekbox TBLDC32-2 LISN is equipped with air core inductors. The enclosure has a robust stainless steel base with flanges for ground connection.

• Frequency range 9 kHz...30 MHz.
• Max. continuous current 25 A, max. current for 15 min 32 A.
• DC voltage 1000 V.
• Impedance:
  Mode A, mode B: 150 ±30 Ω.
  Common mode: 150 ±30 Ω.
  Differential mode: 150 ±30 Ω.
• EUT port:
  Phase at EUT-port: 0 ±40°.
  EUT-port to AE-port isolation, CM: >20 dB.
  EUT-port to AE-port isolation, DM: >40 dB.
• Longitudinal conversion loss >26 dB.
• Voltage division factor 20 ±3 dB.
• DC-resistance 80 mΩ per path typ.
• Air core inductors.
• Rotary selection switch for path A, B, CM, DM.
• AE-port, EUT-port terminals 4 mm, safety.
• Measurement connector 50 Ω BNC.
• Dimensions (mm, WxHxL) 282 x 150 x 480; approx. 9 kg.
• Operating temperature range +5...+40°C, 5...80% rel. humidity, non-condensing.
• Application: EMC conducted emission measurements on DC supply lines.