DobleLemke-Product-LDS-6_UHF

LDS-6/UHF

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

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

LDS-6/UHF

? 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)

Additional Pictures