LDSR

Leakage current measurement in transformerless photovoltaic (PV) inverters for residential market.

LDSR

LDSR

Please find here the product page

 

Main characteristics:

  • PCB mounting
  • Small currents' measurement of 0.3 Arms nominal
  • Accurate (2% Max at +25°C)
  • Low offset drift
  • Compact unique design
  • Light : 22g
  • Operating temperature range: -40 to +105°C
  • 5 years warranty

 

Features:

  • DC, AC, pulse, small currents' measurements with galvanic isolation
  • Single supply: 0,+5V
  • Isolation test voltage: 1.71 KVrms / 50Hz / 1 min
  • Voltage output
  • Bandwidth DC to 2 KHz (- 3 dB)
  • Closed-loop Asic
  • High creepage and clearance distances (7.1mm) for high insulation

 

Standard compliance:

  • EN 50178 for industrial application such as :
    • Leakage current measurement in transformerless PV inverters
    • First human contact protection of PV arrays
    • Failure detection in power sources
    • Symmetrical fault detection
    • Current leakage detection in stacked DC sources
  • UL 62109-1
  • European Directive EMC 2004 / 108 / EEC: CE marking
  • Low voltage directive 2006 / 95 / EEC
  • Safety IEC 61010-1

 

Remarks:

  • Designed for single or three phases residual current measurement (up to +/- 30A per wire, DC or AC)
  • Test function with a test winding
  • Demagnetization function
  • Reference access

Download technical article: Making single-phase solar inverters smaller, cheaper & safer