Applications

* The LDS-6/UHF is a state-of- the-art, portable digital measuring system for the UHF processing of partial discharges acquired from installed GIS sensors, or UHF sensors. It combines the features of a PD detector and spectrum analyzer.
* PD quality tests on GIS using installed GIS sensors
* PD testing on HV Apparatus, using UHF technology
* Designed for on-site PD diagnosis tests as well as for manufacturing and research
* Single channel or Dual channel
* Available in 19" housing with external PC connected via Ethernet, or portable case with built in mini PC


User Benefits

* Continuous UHF PD pulse processing
* Frequency selective PD measuring to eliminate noise
* Spectrum analyzer function
* PD pattern recognition
* Additional statistical evaluations
* Additional diagnosis tools for PD failure recognition and identification


Specifications

* computer-aided measuring, recording, storing, monitoring and analysis (PRPDA) of PD pulses
* frequency domain signal conditioning
* software switch-able sensor amplifier for high sensitivity
* signal processing band width (FULL SPAN) 110 MHz to 1700 MHz
* Frequency selective measurement, resolution bandwidth (RBW) 7 MHz
* IF signal processing – 1.IF = 479 MHz / 2. IF = 36 MHz
* IF signal output 36 MHz, output impedance 50 Ohm
* PD measuring range up to 700mV attenuation in 2dB steps up to 62dB
* Software SPAN setup
* Spectrum analyzer function
* Software controlled 62 dB attenuation, 2 dB steps
* N – type signal input connector
* Protocol generator for creating customer specific test reports (optional available)
* Ethernet connection between measuring system and computer (only in 19" housing)
* with protective carry case for on-site applications
* housing 200 x 440 x 540 (H x W x D) with handle
* weight 18 kg
* The LDS-6/UHF (19" housing version) can be equipped with a wide-band unit for PD measurements acc. to IEC 60270


Accessories

* Active UHF-PD Sensor DN50 - For decoupling of electromagnetic PD signals from the inner of an oilpaper insulated transformers
* Active UHF-PD Sensor DN80 - For decoupling of electromagnetic PD signals from the inner of an oilpaper insulated transformers
* PD-Sensor Typ A - inductive line coupler, ungrounded type
* LDC-7/UHF - External Calibrator for functional check of the complete UHF PD detection circuit, only for UHF version of LDS-6
* UHF-connecting cables to connect the measuring device with the UHF sensor, length 20 m (2 pieces)