UG LT 110Tur
Contents
1. I D LineTroll 110Tur User Manual FIND FAULTS FAST TABLE OF CONTENTS 1 LINETROLL 110TUR OVERVIEW eerte nnne 3 2 FUNCTIONAL DESCRIPTION 1 e eereeeeee eene ene enhn nhan annnm n nana anna nn 3 p EE SIC T UT T E T I NU TE T pv 4 2 25 Activati n CFMCFID eec Cc 4 255 COULEE TESA E mienne Eee ke Ini o 4 Bic Reset Criteria diode uiv Qe oci iii PM GIe MA ERR E UO E LER RdR PES Rn Fu PRA RUE 5 2 5 Battery lifetime maintenance eee ee ee eere eee eee eo se sese setate sete eo s teens eene ease ees 5 2 6 Low battery WarEnllpudodiecal tdoe sevo eee choke eQMi e oikos nesie Nope MARK edo se eot ossos dM RR 5 2 7 Low battery warning restent er apu iden aep Y ea euo vU tasa eov aano 5 Z0 Fault SEDSICTVICY nine la cernes asc E eine HERE pi tan access Ea PI HE else annales 5 Se APPLICATION t 6 4 APPLICATION NOTES nisiingie eeoa laa ae aa repu a aaga TRE apaan 7 4 1 Ene rgising a healthy llle iius eei in tenir Eee e ea ss aor rea Fayard inan 4d even ka equ oo fa sa Yao Ra tesse T 4 2 Connecting a faulty line while the indicator is activated 7 4 3 Transient faults er 8 4A MUSOU nes nn oo iro evi een klein o IM SERERE SN sn te sessao MONEDA LO isde n rS REN I RN ostoi 8 45 Multiple faults c 8 4 6 Capacitive dISCIEBeS eaae RR RO PRE2. VE I u XE t 0 30 t 30 sec Figure 6 Delayed reset of flashing 4 2 Connecting a faulty line while the indicator is activated Closing a breaker onto a fault leads to another trip almost instantly As the activated indicator needs 30 seconds with the line energised in order to reset it will continue indicating See Figure 7 i t 0 t lt 30 sec Figure 7 Reclosing upon a faulted line June 2011 Page 7 of 16 4 3 Transient faults Transient faults cleared within the last automatic reclosing can be detected by the green LED The green LED will flash for 24 hours as extended transient indication Indication i 24h gt Extended transient fault indication If a new fault occurs within timeout 24h the indicator will reset the green LED and indicate for the new fault 4 4 Fused lines One operation criterion assuming automatic voltage reset is enabled is that after a fault three phase disconnection of the line has to be carried out If instead of a three phase trip a fuse operates in one or two phases then the voltage of the healthy phase s may result in no indication or a reset of indication This is true for indicators placed before a fuse as well as after it When the criterion of automatic voltage reset is enabled the LINETROLL 110Tur is not activated unless the fault causes a three phase trip within 5 seco
3. or a communication device by means of dry relay contacts or serial port for remote indication of faults The LT 110Tur is a single phase unit however they are normally used in groups of 3 to fully cover the different fault configurations which can occur Deliveries come as a kit of 3 units to each package The LT 110Tyr Fault Passage Indicator detects down streams faults in the OH distribution network Detectable faults include short circuit and earth fault if the network provides sufficient earth fault current The indicators are placed at strategic locations along the line such as after branching points and sectionalisers The indicators mount directly on the high voltage conductor Live line mounting is easily and rapidly done with a shotgun type Hot Stick Upon fault sensing all indicators installed in the faulty phase s between the feeding substation and the fault will operate The indicators placed behind the fault or in the non damaged phase s remain idle Upon detecting a fault on the line indication is by means of an intermittent LED flash 1 super intensive red LED s for a permanent fault and 1 regular Green LED for transient faults The LED flash can be seen within 100 200 metres distance The lens of the indicator allows for uniform 360 degrees monitoring K NORTROLL AS LineTroll 110Ep 110Eur User Guide September 2009 LINETROLL 110Eur provides fast fault location through remote indication enabling
4. 000 6 3 Generic standard Emission for residential commercial and light industrial environments e EN 61000 6 2 Generic standard Immunity for industrial environments e IEEE 495 1986 4 4 8 Short Range Radio The radio transmits a status telegram to the Collector ComTroll 110C or other every Imin containing permanent or transient fault info low battery warning and Heart Beat Frequency ISM band 2 4 GHz Output ImW OdBm range up to 20m Line Of Sight LOS Margin 20dB with a Receiver sensitivity 90dBm CmT 110C Longer distance may be achieved by taken special action when mounting and positioning the antenna and the indicators June 2011 Page 12 of 16 8 DIMENSIONS Figure 12 LINETROLL 110Tu 110Tur physical dimensions All figures in mm 9 MOUNTING LINETROLL 110Eu mounts directly on the high voltage conductor using a shotgun type Hot stick as shown in fig 14 It should be mounted as close as possible to a traverse to escape line vibrations Figure 14Hot stick mounting close to the traverse To fully cover all kinds of faults NORTROLL recommend mounting indicators on all the phases in multi phase networks Locate the indicators at strategic points along the line 9 1 Before mounting Make sure the indicator is programmed see 4 7 Programming and battery connected before mounting on the line V NORTAOLL AS LineTro110Tur User Guide 9 2 Live line mou
5. D only flashes for 2 or 5 min ref SW 1 lt lt 2 or 5 min r e If the line is de energised line the YELLOW LED only flashes for 2 or 5 min ref SW 1 4 2 ors5 min gt Battery monitoring Battery Capacity monitoring Yellow or amber LED e f 1 10 Hz _ gt Battery 4 7 10 years gt 6 months empty NA NOR ROLL AS LineTro110Tur User Guide June 2011 Page 16 of 16
6. SENTO FINI An En OKU RE M GERM URINE 9 ATs PROGRAMMING 3 ies epo os cote Duas eene etu nn edo eu ere a et uec et lets 10 5 MAINTENANGE ti 11 5 L Battery PeplAac Gime icsists cass tune caciacavccassdoccidiveccilaaceencigiicacceaiesseratistestdusseescieesceceesaisee 11 5 2 Reset battery monitoring sacccesessccessissvcccievanddesisnn ano iei a ska cet ena we neve sk aaa rev da aaa eU cea Ra ev aUas 11 6 INDICATOR HOUSING ccce LLL Leere Leeeee eee ana aaa a annee sees sana aaa au 11 7 TECHNICAL SPECIFICATIONS ecce ce LLL Leer eene eene eaae aaa aaaa aa 12 8 DIMENSIONS serie eat mine eeu ue eRTUE Eve Cada esu Suae net oa Cu gu E PRU Cus EOgU CREE DAE Oca 13 a MOUN TN cte cnn 13 10 FLASHING SEQUENCES c Leeeeeeeeeeeee nl eiie enean annu sena asas sanas snnm sanant 15 Terms Energised line Voltage or current present De energised line Voltage or current not present LT LineTroll Ordering info Prod no Product 04 1300 01 LT 110Tur with radio amp new line clamp A NORTROLL AS LineTro110Tur User Guide June 2011 Page 2 of 16 1 LINETROLL 110Tur OVERVIEW The LINETROLL 110Tyr is a line mounted fault indicator for local and remote indication The LINETROLL 110Tyr has an integrated radio that can communicate with a pole mounted Nortroll Collector device CmT 115C or others The Collector can be interfaced to a SCADA RTU
7. asily accessibly line points for easy monitoring of the indicator in case of a fault for instance near the road It is advisable to take binoculars when looking for a fault e Before and after line points difficult to reach mountains woods etc to help quickly locate the fault e Next to line branching points to help easily locate the damaged branch When installing indicators at such points the use of indicators in every branch is recommended in order to provide complete information in the event of fault Not doing so may cause confusion since there may be an indication in a branch due to a non permanent fault while another branch without an indicator installed may be faulty yet remain unidentified as such e Near line points with sectionalisers to rapidly pinpoint and isolate any faults and to facilitate rapid reconnection of the healthy sections V NOR ROLL AS LineTro110Tur User Guide The LINETROLL 110T jvr is suitable on 66 138kV Sub Transmission amp Transmission networks Radial lines Multiple circuit lines In this case current reset must be used Solidly earthed neutral networks Resistor grounded and isolated neutral networks If indication of earth faults 1s required the indicators sensitivity and the networks residual fault current has to be taken into account On conductors of 5 36 mm diameter with special emphasis on Areas with unpredictable electro magnetic fields caused for exa
8. back into position Align the top cap arrow with the lens label arrow before closing the unit See section 4 7 for programming instructions EN ANY LA M9 N AS E M Le i J Figure 17 Opening closing the LINETROLL 110Tu June 2011 Page 14 of 16 10 FLASHING SEQUENCES Transient fault f 1 5 Hz f 1 10 Hz Comments e Ontransient fault only the green LED will flash until timeout after 24h e The indicator is ready for a new fault within this 24 hour period e The red LED s will NOT flash on transient fault Permanent fault RED 70s f 1 3 Hz f 1 10 Hz timer or automatic reset Comments e The Permanent Fault indication red LEDs is delayed 70 sec to verify a permanent fault e Both red and green LED s will flash on permanent faults until reset timer automatic on energizing of line or manual by use reset tool Flashing frequency for both red amp green LEDs is 1 3 Hz the first 12 hours and thereafter 1 10 Hz of the remaining time NA NOR ROLL AS LineTro110Tur User Guide June 2011 Page 15 of 16 Test amp Reset The magnet must be kept at the yellow reset spot for minimum 2 sec to activate test or reset Manual with maenet Test sequence Manual with maenet 28 SS Tes sequence TEST sequence all LED flashes and a Fault signal is sent to the Collector RESET sequence e If the line is energised the GREEN LE
9. en energised for more than 30 sec voltage or current V NORTROLL AS LineTro110Tur User Guide Switch Auto reset on return of 7 voltage current 0 OFF I ON Table 5 Auto Reset Note If Auto Reset ON then a transient fault will be indicated for 24h by a single green led Note To enable new switch settings a RESET of the indicator is required This can be achieved via reconnection of the battery or a magnet at the RESET spot 4 7 6 Emote programming Switch i 8 Remote programming 0 OFF only local programming 1 Enables the indicator for remote programming from a collector f ex CmT 115C Table 6 Remote programming 4 7 7 Battery counter reset Rotary switch Battery Reset LT 110Tur Switch for Radio address setting 0 Reset battery counter Table 7 Battery counter reset Figure 9 Close up of switch banks 4 7 8 Programming of radio addresses For programming of the radio addresses please refer to the User Guide for the Collector June 2011 Page 10 of 16 5 MAINTENANCE It is advisable to inspect the indicator once a year or 1 year after it was last activated The inspection should include a functional test with a magnet to show that the flash frequency and intensity are normal S 1 Battery replacement The battery is fitted into the top cap of the indicator housing To replace the battery first disconnect the ba
10. from all the overhead lines and underground cables lengths beyond that point only Proposed location for LT 110Tur 44 gt 4 km PEX Total o h line lenght ee downstream the indicator cee L1 L2 20 km La L1 L2 20km Lc 1 km PEX g Lem Z 1 5 9A U 22kV Figure 8 Capacitive discharge current calculation example cables June 2011 Page 9 of 16 4 7 PROGRAMMING Programming the unit is done via a switch bank on the printed circuit board See fig 9 The indicator can be programmed to different current levels for either di dt sensing or threshold sensing 4 7 1 Status Indication Red led Energized line voltage current Yellow led Not energized yellow led Switch i Duration of status indication 0 2 min 1 5 min 4 7 2 Di dt sensing we Di dt amp Threshold level ololo Di dt 500 010 Di dt 1000 A 11010 Threshold 500 A 11110 Threshold 1000 A Table 1 Di dt setting 4 7 3 Start Stop criteria Switch z Start Stop criteria 0 Current gt 50A 1 Voltage gt 50kV Table 3 Start Stop criteria 4 7 4 Timer reset Sy mene Timer reset 0 0 2 hours 0 1 6 hours 1 0 12 hours 1 1 24 hours Table 4 Timer reset 4 7 5 Auto Reset Programming of the automatic indication reset AR If enables reset occurs when the line has be
11. he magnetic field generated by the line current induces a signal in the indicators pickup coil The induced signal is applied to a di dt sensor in order to discriminate between fault current and load current The di dt sensor detects instantaneous current level increases as is the case when a faults occurs The trip level of the di dt sensor can be set to 500A or 1000 A by means of a switch bank inside the unit A normal variation of the load current will not activate the LINETROLL 110Tutr Phase conductor Step level sensor Figure 1 Magnetic field sensor principle Phase conductor Ne Figure 2 Electric field sensor principle The line voltage is detected by means of an antenna housed inside the indicator V NORV ROLL AS LineTro110Tur User Guide 2 2 Activation criteria The LINETROLL 110Tur can be easily set to operate in the wanted mode by altering a number of switches inside the unit In order to avoid activating the indicator due to magnetising inrush current it s di dt sensor is blocked for 5 sec upon energising of a line While the blocking time elapses the line current can stabilise so as not to cause triggering of the di dt sensor A fault duration exceeding 60ms is required to activate the indicator In addition to its di dt sensor the LINETROLL 110Tur incorporates a common threshold sensor with threshold levels of 500A or 1000A The threshold criterion if enabled activates the
12. icator has a colour coded label indicating the year of manufacture See Figure 11Figure 11 Top cap colour coding versus the year of manufacture June 2011 Page 11 of 16 7 TECHNICAL SPECIFICATIONS Nominal voltage 66 138 kV Starting criteria e Line energised for at least 5 seconds followed by a stepped instantaneous current increase of 2500 or gt 1000A OR e absolute phase current exceeding 500 or 1000A AND e a three phase disconnection of the line within 5 sec Required fault duration 60ms 20ms on request Reset criteria 1 Voltage Current reset after 30sec Can be disabled The minimum required current voltage for start reset Min start reset current A Voltage kV Current 250A Voltage 250kV 2 Timer reset 2h 6h 12h or 24h 3 Manually magnet Line diameter 5 36mm Current consumption Non activated 300 uA Activated flashing 4 mA Battery 3 6 V 16 5Ah type KBB 11 Shelt life More than 10 years Flashing 1500 flashing hours Battery replacement normally every 7 10 years V NORV ROLL AS LineTro110Tur User Guide Indication 1 Super intensive red Flash every 3 sec 10 sec after 12 hours 1 green LED for transient fault 1 amber Yellow LED for battery warning Intensity gt 30 Lumens Ambient amp storage temp 40 gt 85 C Weight 460 grams Standards Conform to IEC 68 2 Tested according to e EN 61
13. indicator if a fault current exceeds the selected level Inrush blocking is still active in this mode A rapid line current increase followed by a de energising of the line within 5 sec will activate the indicator 2 3 Indication The main mode of local indication is 1 super intensive red LEDs which indicate for permanent faults Secondary indication is a single regular green LED e Fora transient fault The green LED flashes for 24h no red LED s flash e Fora permanent fault The super intensive red LEDs flash until reset timer auto or manual reset Note to verify a permanent fault is present the red LED indication is delayed 70 sec See more detailed info in Ch 10 Flashing sequence June 2011 Page 4 of 16 2 4 Reset criteria The indicator can be set to automatically resets in two different ways 1 When the line is energised The voltage or current sensor detects that the line is energised and can in turn reset the indicator after 30 seconds of continuously energised line 2 Automatic reset by internal timer This timer can be set to 2 6 12 or 24 hours The indicator can also be reset manually at any time by use of a magnet 2 5 Battery lifetime maintenance A 3 6V 16 5 Ah Lithium battery powers the indicator When idle the 110Tur consumption is a few micro amps only This gives some 7 10 years battery lifetime in normal service When the unit is activated approximately 4 mA are consu
14. med giving more than 1500 hours of flashing capacity The battery is fitted with a connector for simple replacement Capacity Ah i 20 C 55 C 15 T 15 Current mA Figure 3 Initial battery capacity V NORV ROLL AS LineTro110Tur User Guide KBX 11 battery capacity 100 16 5 Ah 0 2 4 6 8 10 t years Figure 4 Remaining battery capacity as a function of years and temperature 2 6 Low battery warning During the last few months of the battery s life an amber LED with a low flashing frequency will indicate that less than 2096 of capacity remains and that there is a need for battery replacement The 110Tur will send a message Low battery to the Collector 2 7 Low battery warning reset In the case of battery replacement the battery capacity monitoring must be reset See Ch 3 2 2 8 Fault sensitivity The indicator s di dt sensitivity is limited by the load current See table in Ch 7 TECHNICAL SPECIFICATIONS The indicator detects short circuit as well as earth faults provided that the di dt current change exceeds the detection level or absolute threshold level dependent on programming June 2011 Page 5 of 16 3 APPLICATION The application of LINETROLL 110Tur usually requires a preceding line survey so that the best use of the indicator may be identified For the best economic benefit it is recom mended that the indicators are used e On e
15. mple by parallel lines Here the indicator can be used as a better suited complement to the three phase fault indicator LineTroll 111K amp LineTroll 3100 Do not use LT110Tyr on Ring lines or multiple fed lines June 2011 Page 6 of 16 4 APPLICATION NOTES The aim of this section is to describe how the LINETROLL 110Tyr indicator behaves for different service situations and network events 4 1 Energising a healthy line As the magnetising inrush current of a line can be very high the indicator is provided with 5 seconds inrush blocking which prevents it from being activated until after the line current has stabilised Once the blocking time has elapsed the indicator is enabled for fault detection See Figure 5 5 A MT M I u Xt o m i t 0 fault t 5sec OR tree u gt 0 t 5sec fault ES i Figure 5 Criterion of the blocking time a shows the sequence when a fault occurs less than 5 sec after line has been energised gt No Indication If upon re energising of a line the unit is already indicating due to a previous fault the unit will reset if the voltage or current reset option is enabled However even in this case the indicator will flash for 30 seconds depending on the programming see 4 7 before finally extinguishing See Figure 6 X NORTROLL AS LineTro110Tyur User Guide
16. nds after the occurrence of the fault If there is only one disconnection within 5 sec followed by an automatic reclosing causing a fuse operation the indication starts but will reset after 30 sec If the automatic reset is switched off the indicator will continue flashing until it is reset manually or after the automatic timer period has elapsed V NORV ROLL AS LineTro110Tur User Guide 4 5 Multiple faults Multiple faults can sometimes occur Defective network components may burn or break due to the electro dynamic force of a fault current and cause a second fault Another cause of multiple faults for network where the neutral is isolated from earth or earthed via a resistor is an increase in the phase to ground voltage on healthy phases due to an initial earth fault The phase to ground voltage may reach up to 1 7 times the nominal voltage depending on the total impedance of the earth loop If there are any weak points in the line they may not withstand such a large voltage increase This type of fault may be difficult to find as they often are non permanent and only appear in situations like the ones mentioned here Note In this situation the indicators may show non consequent indication June 2011 Page 8 of 16 4 6 Capacitive discharges The LINETROLL 110Tyr indicator is not directional it therefore detects current without discriminating direction In case of an earth fault the network capacitive energ
17. nting by using a Grip All Clamp shot gun Hot Stick 1 Fix the indicator to the hot stick and raise lift it to the line as shown in fig 14 2 Pull the stick downwards and against the line until the line is in the correct position within the clamp see fig 15 Release the Grip All Clamp stick Figure 15 Mounting using Grip All clamp hot stick 9 3 Removal 1 Fix the claw in the eye on the horizontal part of the line clamp see fig 15 2 Pull down to release the indicator from the line s AN C gt X Figure 16 Removal from the line June 2011 Page 13 of 16 Test of the battery Battery can be tested by placing a magnet on the yellow spot marked RESET After 2 sec the indicator will respond by flashing all the LED s see section 10 Flashing sequences Test Reset During the last few months of the battery s life an amber yellow LED with a low flashing frequency 1 10 Hz will indicate that less than 20 of battery capacity remains and that there is a need for a battery replacement The LT 110Tur will in addition transmit a Low Battery message to the Collector Programming Open the indicator by unscrewing the top cap from the lens See Figure 17 V NORV ROLL AS LineTro110Tur User Guide Pull out the electronics board just as far as to enable operation of the switch bank levers See Feil Fant ikke referansekilden 18 Set the switches as required Push the electronics board
18. reduction in outage times This represents enhanced service to the customer thereby improving the utility image Another important aspect of using fault indicators is that unnecessary operations of circuit breakers and sectionalisers to locate faults can be avoided In this way the indicators can help to reduce wear and tear as the reclosing cycle can cause stress to switchgear 2 FUNCTIONAL DESCRIPTION The LINETROLL 110Tur continuously monitors the line voltage and phase current the two sources of information it needs to operate The unit is fully self contained no external transformers or connections are required During normal line conditions the indicator does not flash The device is looking for a specific sequence of line conditions to occur before it starts indicating locally and remotely The general sequence is as follows A The line is energised voltage or current present for at least 5 seconds B The line current increases instantaneously by a user defined set value the step level or exceeds a user defined threshold value if enabled C The line is de energised Voltage or current not present optional auto reset when the line is re energised The user can program the criteria for operation to suit his local requirement by manipulating a bank of micro switches inside the indicator Note Voltage or current present as start and stop criteria is user programmable Page 3 of 16 2 1 Sensors T
19. ttery from the electronics board by pulling the battery plug then pull the battery from the top cap Fitting a new battery is the reverse of the removal procedure The spare battery KBB 11 comes with a connector so the replacement can be carried out on site NEGATIVE POLE OF THE BATTERY BATTERY CONNECTOR SENSOR CONNECTOR SENSOR CONNECTC BATTERY CONNECTOR Figure 10 LINETROLL 110Tur connectors 52 Reset battery monitoring When the battery is replaced with a new battery the battery monitoring must be reset With the battery disconnected reset can be done setting Rotary switch to position see figure 11b while at the same time powering the indicator by connecting the battery The indicator will confirm the reset with a continuous green flashing Unplug the battery and then plug the batter in again V NORTROLL AS LineTro110Tur User Guide LineTroll 110Tur Figure 11b Rotary switch in location Ag resetting battery counter on LineTroll 110Tur The indicator battery monitoring has now been reset and the green led will stop flashing 6 INDICATOR HOUSING The indicator housing is made of high strength plastics The material is highly UV stabilised and is flame retarding The lens material in addition has excellent optical characteristics An O ring joint is used to provide a good seal between the upper cap and the lens The line clamp is made of PA Poly Amid The top cap of the ind
20. y discharges in the fault point It should be checked that the capacitive discharge current downstream of the indicator is below the preset trip level in order to avoid the indicator erroneously activating upon earth faults If the total capacitive current exceeds the trip level it is advisable to change the trip level or install the indicators in the branching points instead of in the main line The capacitive discharge of a branching point is limited by its own capacitance while in the main line the capacitive current of all the branches downstream of the indicator is added Underground cables have larger capacitance than overhead lines This has to be taken into account when an overhead line feeds an underground cable The following simplified formula may be used to estimate the capacitive discharge current for a line Ic U La U Ic 300 K Ic Capacitive current in A U Nominal voltage in kV La Overhead line length in km Lc Cable length in km K 10 for oil impregnated 5 for PEX cables 3 for PVC cables In order to avoid that the LINETROLL 110Tur is activated by an earth fault downstream of the indicator the following criterion has to be met Ic lt It where Ic capacitive current downstream of the indicator It Setting of sensitivity 500 or 1000A V NORV ROLL AS LineTro110Tur User Guide To estimate the capacitive discharge current at any line point you have to calculate the contribution
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