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Diagnostic Measurements on High Voltage Cables
Dr. Michael Krüger (c) OMICRON
Commissioning of a 220kV Cable Cable
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Commissioning of a 220kV Cable Overview
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Commissioning of a 220kV Cable Section 1
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Cable Joint with Screen Terminals
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Check of the PD Measurement System
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Test Setup
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Measurement Principle at the Link Box
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Mounting PD Instruments at a Link Box In the open Land during Day
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Mounting PD Instruments at a Link Box In the open Land during Day
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Link Box and Optical Fibre Cable
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Preparing the Optical Fibre Cable
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Mounting PD Instruments at a Link Box In the open Land during Day
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MPD600
Optical Fibre
HFCT
Mounting PD Instruments at a Link Box Besides the High Way during Day
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Mounting PD Instruments at a Link Box On the High Way during Night
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Performance Check at a Link Box
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Optical Fibre
HFCT’s at the End Terminations
17 Outdoor termination GIS termination
High Voltage Test Source
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High Voltage Lead to the Cable Termination
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Diesel Generator
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Test Voltage
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Display of the High Voltage Source
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PD Measurement Frequency Range Wideband PD Measurment System
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Noise spectrum and PD measurement bandwidth (3,5-4,5MHz)
Damping of Impulses Along the Cable Measurement Frequency Range: 3,5 - 4,5 MHz
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Coupling capacitor Cable termination Joint 1-2
Joint 2-3 Joint 3-4 Joint 4-5
Damping of Impulses Along the Cable At different Frequencies
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Switching Impulses from the HV Test Source
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Gating off the Noise Impulses Gating Unit connected to Antenna in the HV Test Source
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Gating
Overview of all Channels at 180kV
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Coupling capacitor
Cable end termination
Joint 1-2 Joint 2-3 Joint 3-4
Joint 6-7 Joint 7-8 Joint 8-9 Joint 4-5 Joint 5-6
Joint 11-12 Joint 12-13 Cable GIS termination
Joint 9-10 Joint 10-11
Gating unit
On-Line PD Measurement on a Transformer-GIS - Cable Connection (GIS Side)
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2 1
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Calibration with 1000pC on the GIS Side
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Calibration with 1000pC on the GIS Side
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Online PD Measurement at the GIS Side with 3-Channels
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yellow phase GIS
red phase GIS
blue phase GIS
Sensors 1, 2 and 3 at GIS the Side and Sensor 4 at the Transformer Side
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4 100m
Sensor 4 at the Transformer Side
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PD Measurement at the GIS and the Transformer Side with 4-Channels
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blue phase GIS
blue phase Tr
yellow phase GIS
PD Measurement at GIS and TR Side Trigger=TR Side - Delay on GIS Side
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delayed signal blue phase GIS
trigger = blue phase Tr
PD Measurement at GIS and TR Side Trigger=GIS Side - Leading Signal on TR
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leading signal blue phase TR
trigger = blue phase GIS
Jumper between Oil/Oil Bushing and Cable Termination
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Jumper between Oil/Oil Bushing and Cable Termination
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