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EA Technology 

CableData Collector Operating Manual 

1365/L/01/1 
 

 

Page 11 of 54 

 

 

9.3 

Phase Reference 

A phase reference is required by the CableData Collector to improve the data analysis and 
allows classification of events based on the phase position. A phase reference can be 
supplied to the CableData collector by one of two sources, either via the phase reference 
transformer or the connected RFCTs. A phase reference on the Auxiliary channel from the 
phase reference transformer is the preferred source for the phase reference, but if the 
instrument detects it is not present it will attempt to locate a phase reference from the 
connected RFCT’s. 
 

9.3.1 

Transformer Reference 

 
The supplied phase reference transformer is the preferred source for a phase reference 
signal, as it will provide better results than using 

the RFCT’s. Because of this, it should be 

used wherever possible. To use the Transformer Reference, plug the BNC connector from 
the end of the transformer cable into the 

Aux

 input. 

 
If the attached cable is too short, it is possible to use either a mains extension lead or a 
longer BNC terminated coaxial cable from the phase reference transformer to the 
instrument. EA Technology can supply the recommended parts, please contact  
EA Technology Product Support for further information. For contact details please see 
section 19 of this manual. 
 
The phase reference transformer input is in the form of an IEC320-C7 power cable, which 
can be swapped for an off the shelf version of the cable with a local plug. If this is not 
possible, the transformer will work with basic travel adapters. The more complex travel 
adapters that also convert the voltage may not work and should be avoided.

 

The transformer 

is designed to work with an input voltage between 100V and 240V.  
 
 

9.3.2 

RFCT Reference 

 
The CableData Collector will attempt to obtain a phase reference from the sheath current 
flowing through the RFCTs. This 50Hz or 60Hz current is due to the cable capacitance, or in 
some circumstances may be down to induction from the phase conductors. A current of 
approximately 200mA is required to give a reliable reference - if the current is lower, the 
reference may be intermittent and unreliable. If the current is around the lower limit, the 
phase reference LED may occasionally change between green and orange. If this occurs 
then it is recommended to use the phase reference transformer. If the instrument is being 
used in Single Phase mode it will only attempt to detect the phase reference on channel 1, 
but if it is being used in three phase mode all three input channels will be attempted. This 
information is logged in the capture reports and can be viewed at the end of the data capture 
process. 
 

Содержание CableData CDC2

Страница 1: ...CableData Collector Operating Manual Product Code CDC2 Version 1 January 2013...

Страница 2: ......

Страница 3: ...tion 14 10 2 Connecting the CableData Collector 20 10 3 First Run 20 10 4 Operating the Software 22 10 4 1 Software Initialisation 22 10 4 2 Main Screen 24 10 4 3 Data Entry 25 10 4 4 Phase Informatio...

Страница 4: ...ase Cables 45 11 1 3 Cable Partial Discharge PD 47 11 1 4 RFCT Connection Requirements 48 11 1 5 Cable Type Restrictions 49 12 Specification 50 12 1 Cable PD Inputs 50 12 2 Hardware 50 12 3 Environmen...

Страница 5: ...EA Technology CableData Collector Operating Manual 1365 L 01 1 Page 1 of 54 1 Record of Changes Date Drawing Number Changes December 2012 1365 L 01 1 First Issue...

Страница 6: ...ystem that combines all the benefits of EA Technology s award winning Partial Discharge PD detection and monitoring in one simple to install automatic set up It can monitor over 100 assets simultaneou...

Страница 7: ...Hz supplies with or without current flow Extended Voltstick essential safety tool for identifying low voltage cables that have been damaged during excavations 3 EA Technology Training Courses MSc in P...

Страница 8: ...ctor Model Number CDC2 I hereby declare that the equipment specified above conforms to the provisions of the EC DIRECTIVE 2004 108 EC on Electromagnetic Compatibility EMC Having met the requirements o...

Страница 9: ...d directly to the high voltage power system the authority responsible for the plant should be notified immediately The CableData Collector is designed for use at ground potential only When testing ele...

Страница 10: ...plied RFCT should be used with the CableData Collector The RFCT we supply has an integral protection circuit to protect the instruments against transients caused by HV switching Only the supplied Phas...

Страница 11: ...a resulting voltage pulse coupled into the earth sheath of the cable These pulses will propagate away from the PD side in both directions Once the pulse reaches a change in impedance this will cause...

Страница 12: ...e 8 of 54 8 Kit Contents CableData Collector Unit 3 x RFCTs 4 x 5m BNC Leads USB Data Power Cable Phase Reference Transformer Carry Case Operating Manual Software USB drive Spares and Accessories For...

Страница 13: ...ctors are for use with the supplied RFCTs for capturing data The fourth connector is the Auxiliary input which the phase reference transformer should be connected to Only the supplied phase reference...

Страница 14: ...not insert a network cable into this socket Figure 2 CableData Collector Rear 9 2 Status LED Definition The left hand two status LEDs indicate the status of the firmware When the unit is powered up b...

Страница 15: ...ology Product Support for further information For contact details please see section 19 of this manual The phase reference transformer input is in the form of an IEC320 C7 power cable which can be swa...

Страница 16: ...date can be viewed through the CableData Collector software by looking at the instrument information screen Figure 3 About button in CableData Collector Software Clicking the About button will display...

Страница 17: ...Collector whose calibration period has expired a warning will be displayed as shown in Figure 5 Clicking OK will allow the software to continue and it will still be possible to collect data however i...

Страница 18: ...e starting with the installation of the CableData Collector To start the installation locate the install files supplied Run the exe file to start the installation process Windows administrator privile...

Страница 19: ...a preparation window will appear first as shown in Figure 8 Figure 8 Virtual COM Port Driver Installation Preparation Once the preparation is completed the installer will wait to start as shown in Fi...

Страница 20: ...have been copied across the Windows Device Driver Installation Wizard will run shown in Figure 11 To install the driver click Next Figure 11 Windows device driver installation wizard Windows will now...

Страница 21: ...ual 1365 L 01 1 Page 17 of 54 Figure 12 Device driver installation completed The next set up screen shown in Figure 13 installs the CableData Collector Software Click Next in the bottom right hand cor...

Страница 22: ...allation of the Desktop collector software is not possible If you agree click the I Agree button and then click Next Figure 14 License Agreement The next screen shown in Figure 15 allows you to select...

Страница 23: ...process will begin A progress bar will keep you updated with the installation progress shown in Figure 16 Figure 16 Installer Progress Once installation is completed the screen shown in Figure 17 will...

Страница 24: ...ows Vista and 7 this will be located in Start All Programs EA Technology CableDataCollector 10 3 First Run The first time the software runs a configuration settings screen is displayed A populated set...

Страница 25: ...lter will block frequencies from DC up to 500kHz The High Pass 1 8MHz will block frequencies from DC up to 1 8MHz As the High Pass 500kHz filter will let through a wider range of frequencies this shou...

Страница 26: ...run the software will start by attempting to find the attached CableData Collector device During this process the window shown in Figure 21 will be present The window will close once the instrument h...

Страница 27: ...own in Figure 23 will be displayed If this warning is displayed first try unplugging the unit and closing the software Then re connect the unit and start the software again If the warning message pers...

Страница 28: ...4 2 Main Screen Providing the software has initialised correctly and found the connected CableData Collector the main screen will now be shown which is the screen used to perform surveys The screen i...

Страница 29: ...data collection can begin The required fields are as follows Job Number Customer Location Engineer Name Substation ID Circuit ID Cable Type Voltage Switch Position Phase Attempting to start recording...

Страница 30: ...mple of this is shown below Figure 26 Figure 26 CableData Acquisition Software with incomplete data The first set of fields are free text and can have any values entered These are Job Number Customer...

Страница 31: ...t is not possible to attach an RFCT to a separate earth conductor for each core The drop down list is shown in Figure 27 Figure 27 Measurement selection For Belted Cable no phase information is requir...

Страница 32: ...asurement For a three phase measurement the phase naming convention must be set in the same way All three drop down lists for the channels will now be activated and each drop down list must have an op...

Страница 33: ...most common cable types listed by default Figure 32 shows the drop down list with the default options Figure 32 Selecting cable type If the cable under test does not have a type listed in the availab...

Страница 34: ...gure 35 will be displayed Figure 35 Error when selecting mixture for cable type without entering any notes 10 4 6 Cable Length The next field is for Cable Length The units for this were set during the...

Страница 35: ...le 1 Theoretical Maximum cable lengths for each sample rate Caution If the cable being tested is longer than allowed by the selected sampling rate then cable mapping will not be possible from the data...

Страница 36: ...shown in Figure 41Figure 40 Figure 40 Switch position selection 10 4 9 Commencing Data Capture With all of the required fields filled in it is now possible to start the data capture Press the start bu...

Страница 37: ...the Skip button will become active Figure 42 Cancel button Clicking the cancel button will immediately cancel data collection A message box will ask if the output should be saved If the data capture...

Страница 38: ...g when repeating data capture 10 4 12 Data Capture Process There are different sequences for single and three phase capture The data capture process collects two types of data Raw data and waveforms R...

Страница 39: ...captured and then for each filter a waveform capture will be done triggering from each of the channels This is shown in Table 3 Sets of 100 waveforms are captured with each filter for each trigger ch...

Страница 40: ...has just started and the second bar is visible Figure 46 Dual progress bars at start of data capture In Figure 47 the data capture is part way through stage 1 As this is the raw data this stage will...

Страница 41: ...urce If there is an error with the device during the data capture then the status bar will turn red This is shown in Figure 51 If this occurs unplug the device and close the software Then plug in the...

Страница 42: ...e 53 shows the capture report for a successful three phase capture with a good phase reference There are a large number of events 900 waveforms per channel and 0 phase reference errors This is what a...

Страница 43: ...r is anything other than zero then the phase reference transformer should be considered as an alternative source for the phase reference Figure 55 Status report for data with missing phase reference T...

Страница 44: ...ed with the Job Number In this directory there will be a directory for each day that collection was performed In this directory will be the individual data files The Substation ID and Circuit ID field...

Страница 45: ...o the options that appear in the CableData Collector software The list of Voltages and Cable Types can have user options added as shown in sections 10 4 5 and 10 4 7 If the additional options need to...

Страница 46: ...on 1 x of the CableData Collector software is already installed this must be uninstalled before installing the updated version 2 x x software From version 2 x x onwards any updates will automatically...

Страница 47: ...Add or Remove Programs interface To open the interface click Start Settings Control Panel In the Control Panel double click on Add or Remove Programs The CableData Collector software will be in the l...

Страница 48: ...L 01 1 Page 44 of 54 The rest of the installation process will happen automatically The uninstaller will display a progress bar as can be seen in Figure 66 Once completed the uninstaller will close a...

Страница 49: ...ed out of the termination box to give better access With PILC Paper Insulated Lead Covered cables difficulty may arise attaching the RFCT unit as the cable earth and switchgear earth can be bonded tog...

Страница 50: ...EA Technology CableData Collector Operating Manual 1365 L 01 1 Page 46 of 54...

Страница 51: ...urs between two phases the effect of equal magnitude and opposite polarity is seen on the phase conductors that the PD event occurred It should also be noted that on XLPE cables the PD event will norm...

Страница 52: ...toring the line conductor and earth within the sheathing and the earth cable external to the sheathing when passed back through the RFCT figure F close up Figure 70 If the RFCT is placed over both the...

Страница 53: ...This is important because on belted cables phase to phase voltages exist whereas on XLPE cables this is not the case On the 3 phase 6 6kV 11kV belted cable types the RFCT will not see a PD occurring...

Страница 54: ...or 38 s 12 2 Hardware Enclosure Machined Aluminium Indicators 3 x Dual Colour LEDs Expansion Connections USB SD Card Ethernet 12 3 Environmental Operating Temperature 0 60 degrees C Humidity 0 90 RH...

Страница 55: ...not stand on the case There are no user serviceable parts No attempt should be made to gain access to the internal circuitry of the instrument or its accessories Advice should be sought from the manu...

Страница 56: ...contained in your operating manual damage resulting from the performance of repairs by someone not authorised by EA Technology Warranty policy for repairs Repaired products are warranted against defe...

Страница 57: ...nor variations in specifications or operation that are not covered in this operating manual Every effort has been made to ensure that the information provided in this operating manual is accurate at t...

Страница 58: ...by any means electronic mechanical photocopied recorded or otherwise or stored in any retrieval system of any nature without the written permission of the copyright holder EA Technology Ltd 2013 EA T...

Страница 59: ......

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