PD-Smart

Digital, highly advanced, multi-purpose and smart Partial Discharge and Diagnostics System for on-line and off-line PD testing on power apparatus and high voltage insulation systems, for both in-house and on-site applications. Allows multichannel, synchronous Partial Discharge Measurements e.g. on transformers

• according to the standard IEC 60270, VDE 0434, ANSI as well as various IEEE standards
• PD quality tests on high voltage equipment
• PD diagnosis on developing insulating materials
• Designed for on-site PD diagnosis tests as well as for manufacturing and research
• PD fault location for power cables

• single or multi-channel (scaleable)
• truly parallel and synchronous measurement of phi-Q-N pattern
• remote controlled via LAN and PC
• Advanced LDIC Noise-Gating-Technology:
  with integrated noise-gating channel for noise-suppression via external antenna
• easy suppression of phase-locked noise by an unlimited number of Windows
• small compact design for stationary or on site use
• integrated battery
• features the well known LDIC Analysis and Diagnostics software
• expandable for various PD / RIV applications up to tan δ / Power Factor

PD detection:

• permanent detection of all PD events
• digital, numeric real-time integration of PD events
• integration in time and frequency range
  • time range: 100 ns .... 10 µs
  • frequency range: center frequency: 0 Hz .... 20 MHz
  • band width: 9 kHz, 30 kHz, 100 kHz, 300 kHz, 1 MHz, 3 MHz
• charge evaluation full compatible to IEC 60270, VDE 0434, ANSI
• single pulse detection: < 3 ns
• max. double pulse resolution: <200ns (time range, superpositionerror < 1 %)
• max. pulse frequency: 2 MHz
• Input frequency range:
  • Voltage: DC to 10 kHz
  • PD signal: DC to 20 MHz
• Input impedance:
  • Voltage: 1 MOhm
  • PD signal: 50 Ohm
• Input voltage:
  • Voltage: 50 V rms (max)
  • PD signal: 10 V rms (max)
• Dynamic range:
  • Voltage: 16 bit, 80 dB
  • PD signal: 16 bit, 100 dB
• PD input protection:
  • input protection against over-voltage and short-circuit
• PD input coupling:
  • DC, AC
• Voltage supply:
  • 8,4 V DC with battery 
  • external power supply (100 - 240 V, 50 - 60 Hz)
• Outputs:
  • 1 x LWL-Output with E/O converter as electrical Ethernet
• Inputs:
  • 2 x TNC (HF PD signal, NF voltage signal),
  • 1 x TTL signal for gating
• Temperature range:
  • 0 °C to 40 °C (operation)
  • 0 °C to 60°C (storage)
• Humidity:
  • 5 % to 95 %, non-condense

• Fault Location modul for PD Location in power cables (Reflectometer method)
• UHF-modul (Attenuation: 0 dB / 26 dB / 38 dB, Band width: 110 MHz bis 850 MHz)
• LDC-5 - Calibrator for external calibration of the PD measuring circuit in pC of apparent charge up to 500 pC
• LDJ-5 - Charge Injector for calibration of the PD measuring circuit with charge magnitudes up to 50000 pC
• LDM-5 or LDM-5/U - Measuring impedance for signal and test voltage decoupling (bandwidth 20 MHz, maximum current 5 A, optional 50 A)