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Technical description

7 Applications

7.2 Restricted earth fault protection

for a transformer with neutral

connection

VM265.EN011

VAMP 24h support phone +358 (0)20 753 3264

155

7.2.1.

CT Requirements

Any difference between the CTs will give a misleading residual
current signal to the relay. Especially during heavy through
faults (i.e. the fault is outside the protected zone) the dissimilar
saturation of the CTs should not yield to a REF trip. On the
other hand a very high fault current causing an unselective
earth fault start or trip is not a fatal error.

Class X CT

In restricted earth fault protection the high and low side CTs
should give similar responses even for high over currents.
Class X CTs will fulfil this requirement. Their performance is
defined in terms of a knee-point voltage (V

KP

), the magnetizing

current at the knee point voltage and the resistance of the
secondary winding at +75 °C.
Knee point voltage (V

KP

) is the secondary voltage at which a 50

% increase of primary current is needed to increase the
secondary voltage by 10 %.

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Содержание 265

Страница 1: ...VAMP 265 Transformer generator and motor differential protection relay Operation and configuration instructions Technical description...

Страница 2: ...VM265 EN011...

Страница 3: ...re of protection functions 14 2 2 3 Setting groups 18 2 2 4 Fault logs 19 2 2 5 Operating levels 20 2 3 Operating measures 22 2 3 1 Control functions 22 2 3 2 Measured data 23 2 3 3 Reading event regi...

Страница 4: ...xx 1 1 Relay features VAMP 265 differential protection relay is ideal for transformer motor generator and short cable 100 differential protection The relay features the following protection functions...

Страница 5: ...simultaneously Via remote control over the remote control port on the relay rear panel 1 3 Operating Safety The terminals on the rear panel of the relay may carry dangerous voltages even if the auxili...

Страница 6: ...5 EN011 2 Local panel user interface 2 1 Relay front panel The figure below shows as an example the front panel of the relay VAMP 265 and the location of the user interface elements used for local con...

Страница 7: ...ification etc Figure 2 1 1 1 The other purpose is to show the configuration and parameterization values of the relay Figure 2 1 1 2 Figure 2 1 1 1 Sections of the LCD dot matrix display 1 Freely confi...

Страница 8: ...display show the possible navigating directions applicable navigation keys in the menu 3 The name of the active submenu and a possible ANSI code of the selected function are shown in the upper part o...

Страница 9: ...Alarm LED lit One or several signals of the output relay matrix have been assigned to output LA and the output has been activated by one of the signals For more information about output matrix please...

Страница 10: ...or approx 3 s Then reset the latched indicators and output relays by pushing the ENTER key Acknowledge each event in the alarm list one by one by pushing the ENTER key equivalent times Then in the ini...

Страница 11: ...in the main menu 2 To move to a submenu repeatedly push the RIGHT key until the required submenu is shown Correspondingly push the LEFT key to return to the main menu 3 Push the ENTER key to confirm...

Страница 12: ...structure and navigation in the menus 6 Push the INFO key to obtain additional information about any menu item 7 Push the CANCEL key to revert to the normal display Main menu The general menu structur...

Страница 13: ...Digital outputs relays and output matrix ExtAI 3 External analogue inputs 3 ExDI 3 External digital inputs 3 ExDO 3 External digital outputs 3 Prot 27 Protection counters combined overcurrent status p...

Страница 14: ...er s logic 1 CONF 10 2 Device setup scaling etc 6 Bus 13 Serial port and protocol configuration 7 Diag 6 Device selfdiagnosis Notes 1 Configuration is done with VAMPSET 2 Recording files are read with...

Страница 15: ...ared if the operating level is at least Operator TCntr 1 The stage has tripped two times since the last reset of restart This value can be cleared if the operating level is at least Operator SetGrp 1...

Страница 16: ...FT Setting groups are explained in chapter 2 2 3 Ilmax 403A The maximum of the three measured phase currents is at the moment 403 A This is the value the stage is supervising Status Status of the stag...

Страница 17: ...h buttons ENTER and then RIGHT or LEFT 2006 09 14 Date of the log 12 25 10 288 Time of the log Type 1 2 The overcurrent fault has been detected in phases L1 and L2 A B red yellow R S u v Flt 2 86xIn T...

Страница 18: ...p is group two and correspondingly the active group is group one if the digital input is FALSE If no digital input is selected SGrpDI the active group can be selected by changing the value of the para...

Страница 19: ...o eight different faults with time stamp information fault values etc Each function has its own logs See Figure 2 2 4 1 Figure 2 2 4 1 Example of fault log To see the values of for example log two pre...

Страница 20: ...vel permanently open Closing Closing not possible OPERATOR level Use Possible to control objects and to change e g the settings of the protection stages Opening Default password is 1 Setting state Pus...

Страница 21: ...local RS 232 port on the relay It is possible to restore the password s in case the password is lost or forgotten In order to restore the password s a relay program is needed The serial port settings...

Страница 22: ...the ENTER key The L R dialog opens Select REMOTE to enable remote control and disable local control Select LOCAL to enable local control and disable remote control 4 Confirm the setting by pushing the...

Страница 23: ...I PHASE CURRENTS 15 min average for I L2 A I L3da I PHASE CURRENTS 15 min average for I L3 A Io I SYMMETRIC CURRENTS Primary value of zerosequence residual current Io A Io2 I SYMMETRIC CURRENTS Primar...

Страница 24: ...I L3 Diagram I HARMONICS of IL1 Harmonics of phase current IL1 see Figure 2 3 2 1 Diagram I HARMONICS of IL2 Harmonics of phase current IL2 see Figure 2 3 2 1 Diagram I HARMONICS of IL3 Harmonics of...

Страница 25: ...nce 2 The EVENT LIST appears The display contains a list of all the events that have been configured to be included in the event register Figure 2 3 3 1 Example of an event register 3 Scroll through t...

Страница 26: ...he UP or DOWN key to change the OFF text to ON that is to activate the Force function 5 Push the ENTER key to return to the selection list Choose the signal to be controlled by force with the UP and D...

Страница 27: ...main menu DO although the VAMPSET program is recommended for output matrix editing 6 Configure the needed digital inputs in main menu DI 7 Configure blocking and interlockings for protection stages u...

Страница 28: ...keys and the ENTER key default value is 0002 For more information about the access levels please refer to Chapter 2 2 5 3 Scroll through the parameters using the UP and DOWN keys A parameter can be s...

Страница 29: ...ing values are out of range values a fault message will be shown when the setting is confirmed with the ENTER key Adjust the setting to be within the allowed range Figure 2 4 2 1 Example of a fault me...

Страница 30: ...adyRe REC COUPLING Add a link to the recorder AddLink Clear all links ClrLnks Available links DO DI IL I L I2 In I2 I1 I2 I1 IoCalc I2 In I 2 I 1 I 2 I 1 I oCalc f Io2 Io1 IL3 IL2 IL1 I L3 I L2 I L1 I...

Страница 31: ...m and Trip and application specific alarm leds A B and C that is the output relay matrix NOTE The amount of Trip and Alarm relays depends on the relay type and optional hardware 2 4 6 Protection menu...

Страница 32: ...c Rated input of the relay I input 5 A or 1 A This is specified in the order code of the device Rated value of I0 CT primary current Ionom Rated value of I0 CT secondary current Iosec Rated I01 input...

Страница 33: ...example Yd11 means a wye delta transformer where the delta side phase to ground voltages are leading 30 the wye side phase to ground voltages DEVICE INFO Relay type Type VAMP 265 Serial number SerN S...

Страница 34: ...testing the communication LOCAL PORT X4 pins 2 3 and 5 This port is disabled if a cable is connected to the front panel connector Communication protocol for the local port X4 Protocol For VAMPSET use...

Страница 35: ...rameter values VAMPSET is recommended Ethernet port protocol Protoc IP Port for protocol Port IP address IpAddr Net mask NetMsk Gateway Gatew Name server NameSw Network time protocol NTP server NTPSvr...

Страница 36: ...6 response time mode SyncRe For details see the technical description part of the manual IEC 103 DISTURBANCE RECORDINGS For details see the technical description part of the manual PROFIBUS Only one i...

Страница 37: ...e the technical description part of the manual 2 4 9 Single line diagram editing The single line diagram is drawn with the VAMPSET software For more information please refer to the VAMPSET manual VMV...

Страница 38: ...on the rear panel of the relay These two serial ports are connected in parallel However if the connection cables are connected to both ports only the port on the front panel will be active To connect...

Страница 39: ...ptional 75 2 12 Programmable stages 99 79 2 13 Inverse time operation 81 2 13 1 Standard inverse delays IEC IEEE IEEE2 RI 84 2 13 2 Free parametrisation using IEC IEEE and IEEE2 equations 94 2 13 3 Pr...

Страница 40: ...lications 153 7 1 Restricted earth fault protection 153 7 2 Restricted earth fault protection for a transformer with neutral connection 154 7 2 1 CT Requirements 155 7 3 Calculating the stabilizing re...

Страница 41: ...9 1 Connections 203 9 1 1 Measuring circuitry 203 9 1 2 Auxiliary voltage 203 9 1 3 Digital inputs 204 9 1 4 Trip contacts 204 9 1 5 Alarm contacts 204 9 1 6 Local serial communication port 204 9 1 7...

Страница 42: ...well as motor and generator differential protection Further the device includes several programmable functions such as arc option thermal and circuit breaker protection and communication protocols for...

Страница 43: ...nal grouping matrix in the relay Freely configurable display with six measurement values Freely configurable interlocking schemes with basic logic functions Recording of events and fault values into a...

Страница 44: ...l network frequency can also be manually given for the relay Apart from the FFT calculations some protection functions also require the symmetrical components to be calculated for obtaining the positi...

Страница 45: ...otection techniques VM265 EN011 VAMP 24h support phone 358 0 20 753 3264 45 Figure 1 2 1 Principle block diagram of the VAMP 265 hardware Figure 1 2 2 Block diagram of signal processing and protection...

Страница 46: ...mber of enabled stages to about 30 depending of the type of the stages For more information please see the configuration instructions in chapter 2 4 in the first part of this manual 2 2 List of protec...

Страница 47: ...as tripped and the fault is still on The blocking reason may be an active signal via the block matrix from other stages the programmable logic or any digital input Some stages also have inbuilt blocki...

Страница 48: ...start and trip signals from other stages and external signals are for example digital and virtual inputs Some protection stages have also inbuilt blocking functions For example under frequency protect...

Страница 49: ...slightly longer than in the figure an unselective trip might happen the dashed 40 ms pulse in the figure In VAMP relays the retardation time is less than 50 ms Reset time release time Figure 2 3 2 sh...

Страница 50: ...ium situation With zero hysteresis any noise in the measured signal or any noise in the measurement itself would cause unwanted oscillation between fault on and fault off situations Figure 2 3 3 Behav...

Страница 51: ...on depends on transformer connection group E g in Yy0 connection measured currents are also winding currents see Figure 2 4 1 In generator applications the connection group is always Yy0 and measured...

Страница 52: ...the average current flow in transformer Bias and differential currents are calculated individually for each phase If transformer is earthed e g connection group Dyn11 then zero current must be compens...

Страница 53: ...N ON Yy0 Yy0 OFF OFF Yyn0 Yy0 OFF ON YNy6 Yy6 ON OFF YNyn6 Yy6 ON ON Yy6 Yy6 OFF OFF Yyn6 Yy6 OFF ON Yd1 Yd1 OFF OFF YNd1 Yd1 ON OFF Yd5 Yd5 OFF OFF YNd5 Yd5 ON OFF Yd7 Yd7 OFF OFF YNd7 Yd7 ON OFF Yd1...

Страница 54: ...e as shown in Figure 2 4 4 This dual slope characteristic allows more differential current at higher currents before tripping Figure 2 4 4 Example of differential overcurrent characteristics The stage...

Страница 55: ...d L3 1 2 3 Fault type three phase fault Flt xIn Max value of fault differential current as compared to In Bias xIn Value of bias current of faulted phase as compared to In Load xIn 1 s mean value of p...

Страница 56: ...e delay type and setting the delay to its minimum an instantaneous ANSI 50 operation is obtained Figure 2 5 1 shows a functional block diagram of the I overcurrent stage with definite time and inverse...

Страница 57: ...ip Current status of the stage F F TripTime s Estimated time to trip SCntr Cumulative start counter Clr TCntr Cumulative trip counter Clr SetGrp 1 or 2 Active setting group Set SGrpDI DIx VIx LEDx VOx...

Страница 58: ...1996 Set Type DT NI VI EI LTI Paramet ers Delay type Definite time Inverse time See chapter 2 13 Set t s Definite operation time for definite time only Set k Inverse delay multiplier for inverse time...

Страница 59: ...signal Virtual output Set Force Off On Force flag for status forcing for test purposes This is a common flag for all stages and output relays too Automatically reset by a 5 minute timeout Set ILmax A...

Страница 60: ...EDly Elapsed time of the operating time setting 100 trip SetGrp 1 2 Active setting group during fault 2 6 Current unbalance protection I2 I 2 46 The current unbalance stage protects against unbalance...

Страница 61: ...xample will be five minutes More stages definite time delay only If more than one definite time delay stages are needed for current unbalance protection the freely programmable stages can be used chap...

Страница 62: ...omatically reset by a 5 minute timeout Set I2 In In The supervised value I2 In Pick up setting Set t s Definite operation time Type DT Set Type DT INV Definite time Inverse time Equation Set K1 s Dela...

Страница 63: ...f the residual current 3I0 The attenuation of the third harmonic is more than 60 dB Whenever this fundamental value exceeds the user s pick up setting of a particular stage this stage picks up and a s...

Страница 64: ...tection to start pick up but will not cause trip When starting happens often enough such intermittent faults can be cleared using the intermittent time setting When a new start happens within the set...

Страница 65: ...cope of inverse curves with high pick up settings See chapter 2 13 for more information Setting groups There are two settings groups available for each stage Switching between setting groups can be co...

Страница 66: ...t Type DT NI VI EI LTI Parame ters Delay type Definite time Inverse time See chapter 2 13 Set t s Definite operation time for definite time only Set k Inverse delay multiplier for inverse time only Se...

Страница 67: ...status forcing for test purposes This is a common flag for all stages and output relays too Automatically reset by a 5 minute timeout Set Io Io2 IoCalc pu The supervised value according the parameter...

Страница 68: ...mperatures Thermal model The temperature is calculated using rms values of phase currents and a thermal model according IEC 60255 8 The rms values is calculated using harmonic components up to the 15t...

Страница 69: ...ent is less than 0 3xIn Heat capacitance service factor and ambient temperature The trip level is determined by the maximum allowed continuous current Imax corresponding to the 100 temperature rise TR...

Страница 70: ...constant At time 300 min the temperature is about stable and the current increases to 5 over the maximum defined by the rated current and the service factor k The temperature rise starts to approach v...

Страница 71: ...rip limit is 100 F MaxRMS Arms Measured current Highest of the three phases Imax A kxIgn Current corresponding to the 100 temperature rise k xIn Allowed overload service factor Set Alarm Alarm level S...

Страница 72: ...s a trip signal The start and trip signals can be used for blocking the other stages The trip delay is irrelevant if only the start signal is used for blocking The trip delay of the stages to be block...

Страница 73: ...be used to trip any upstream circuit breaker CB if the fault has not disappeared within a given time after the initial trip command A different output contact of the relay must be used for this backu...

Страница 74: ...timeout Set CBrelay 1 2 The supervised output relay Relay T1 Relay T2 Set t s Definite operation time Set For details of setting ranges see chapter 9 3 Set An editable parameter password needed C Can...

Страница 75: ...for phase to earth arc faults Current input I01 is used ArcI02 for phase to earth arc faults Current input I02 is used Light channel selection The light information source to the stages can be selecte...

Страница 76: ...8 Vdc signal for BI of other VAMP relays or dedicated arc protection devices by VAMP Delayed light indication signal There is a delayed light indication output signal available for building selective...

Страница 77: ...on flag for all stages and output relays too Automatically reset by a 5 minute timeout Set ILmax I Lmax Io1 Io2 Value of the supervised signal Stage ArcI Stage ArcI Stage ArcI01 Stage ArcI02 ArcI ArcI...

Страница 78: ...available of the eight latest faults Time stamp fault type fault value load current before the fault and elapsed delay Recorded values of the arc protection stages ArcI ArcI ArcI01 ArcI02 50ARC 50NAR...

Страница 79: ...l see table below Cmp Compare mode for over or for under comparison Pick up Limit of the stage The available setting range and the unit depend on the selected signal t Definite time operation delay Hy...

Страница 80: ...or 2 Active setting group Set SGrpDI DIx VIx LEDx VOx Digital signal to select the active setting group None Digital input Virtual input LED indicator signal Virtual output Set Force Off On Force fla...

Страница 81: ...operation time depends on the measured real time process values during a fault For example with an overcurrent stage using inverse delay a bigger a fault current gives faster operation The alternativ...

Страница 82: ...available in output matrix which indicates three different situations 1 Settings are currently changed with VAMPSET or local panel and there is temporarily an illegal combination of curve delay point...

Страница 83: ...rth fault stage I0 and input I01 the table below gives 0 25 A Thus the maximum setting for I0 stage giving full inverse delay range is 0 25 A 1 A 0 25 pu This equals a 25 A primary earth fault current...

Страница 84: ...y times the setting However there are limitations at high setting values due to the measurement range See chapter 2 13 for more details Table 2 13 1 1 Available standard delay families and the availab...

Страница 85: ...rs according Table There are three different delay types according IEC 60255 3 Normal inverse NI Extremely inverse EI Very inverse VI and a VI extension Long time inverse LTI Table 2 13 1 2 Constants...

Страница 86: ...358 0 20 753 3264 VM265 EN011 The operation time in this example will be 5 seconds The same result can be read from Figure 2 13 1 1 Figure 2 13 1 1 IEC normal inverse delay Figure 2 13 1 2 IEC extreme...

Страница 87: ...ctually this equation can only be used to draw graphs or when the measured value I is constant during the fault A modified version is implemented in the relay for real time usage Equation 2 13 1 1 B I...

Страница 88: ...e for Delay type Moderately inverse MI k 0 50 I 4 pu Ipickup 2 pu A 0 0515 B 0 114 C 0 02 9 1 1140 0 1 2 4 0515 0 50 0 02 0 t The operation time in this example will be 1 9 seconds The same result can...

Страница 89: ...65 EN011 VAMP 24h support phone 358 0 20 753 3264 89 Figure 2 13 1 7 ANSI IEEE long time extremely inverse delay Figure 2 13 1 8 ANSI IEEE moderately inverse delay Figure 2 13 1 9 ANSI IEEE short time...

Страница 90: ...However in VAMP device only the trip time is inverse the release time being constant The operation delay depends on the measured value and other parameters according Equation 2 13 1 2 Actually this e...

Страница 91: ...Moderately inverse MI k 0 50 I 4 pu Ipickup 2 pu A 0 1735 B 0 6791 C 0 8 D 0 08 E 0 127 38 0 8 0 2 4 127 0 8 0 2 4 08 0 8 0 2 4 6791 0 1735 0 5 0 3 2 t The operation time in this example will be 0 38...

Страница 92: ...ult relays The operation delay of types RI and RXIDG depends on the measured value and other parameters according Equation 2 13 1 3 and Equation 2 13 1 4 Actually these equations can only be used to d...

Страница 93: ...9 0 5 0 RI t The operation time in this example will be 2 3 seconds The same result can be read from Figure 2 13 1 15 Example for Delay type RXIDG k 0 50 I 4 pu Ipickup 2 pu 9 3 2 5 0 4 ln 35 1 8 5 RX...

Страница 94: ...8 B 0 8630 C 0 8000 D 0 4180 E 0 1947 37 0 8 0 2 4 1947 0 8 0 2 4 4180 0 8 0 2 4 8630 0 2078 0 5 0 3 2 t The operation time in this example will be 0 37 seconds The resulting time current characterist...

Страница 95: ...hould be filled with 1 00 0 00s Here is an example configuration of curve points Point Current I Ipick up Operation delay 1 1 00 10 00 s 2 2 00 6 50 s 3 5 00 4 00 s 4 10 00 3 00 s 5 20 00 2 00 s 6 40...

Страница 96: ...data for a SCADA system SCADA systems are reading events using any of the available communication protocols Event log can also be scanned using the front panel or using VAMPSET With VAMSET the events...

Страница 97: ...ocedure is to poll events from the device all the time If this is not done the event buffer will eventually overflow On the local screen this is indicated with string OVF after the event code Setting...

Страница 98: ...ted in the output matrix vertical signal DR The recording can also be triggered manually All recordings are time stamped Reading recordings The recordings can be uploaded viewed and analysed with the...

Страница 99: ...sitive sequence current I2 I 2 Negative sequence current I2 I1 I 2 I 1 Relative current unbalance I2 In I 2 I n Current unbalance xIGN IL Average IL1 IL2 IL3 3 I L Average I L1 I L2 I L3 3 DO Digital...

Страница 100: ...m One cycle value One cycle value Average Average Average Average Average Average Average Set Time s Recording length Set PreTrig Amount of recording data before the trig moment Set MaxLen s Maximum t...

Страница 101: ...n I oCalc IL I L DO DI THDIL1 THDIL2 THDIL3 IL1RMS IL2RMS IL3RMS ILmin ILmax I Lmin I Lmax IL1 IL2 IL3 IL1w IL2w IL3w I L1w I L2w I L3w Add one channel Maximum simultaneous number of channels is 12 Se...

Страница 102: ...tting tool 1 Go to Disturbance record and select Open A 2 Select the comtrade file from you hard disc or equivalent VAMPSET is now ready to read the recording 3 The virtual measurement has to be enabl...

Страница 103: ...ax setting the function will issue an alarm after the operation delay has elapsed Setting parameters of CT CT supervisor CTSV Parameter Value Unit Default Description Imax 0 0 10 0 xIn 2 0 Upper setti...

Страница 104: ...ation The permissible cycle diagram is usually available in the documentation of the CB manufacturer Figure 3 4 1 The diagram specifies the permissible number of cycles for every level of the breaking...

Страница 105: ...n there are less operation left at the given current level than this limit Any actual interrupted current will be logarithmically weighted for the two given alarm current levels and the number of oper...

Страница 106: ...Equation 3 4 2 k k k k I I C C n 1 1 ln ln Equation 3 4 3 2 k k I C a ln natural logarithm function Ck permitted operations k row 2 7 in Table 3 4 1 Ik corresponding current k row 2 7 in Table 3 4 1...

Страница 107: ...per cent of the maximum Example of operation counter decrementing when the CB is breaking a current Alarm2 is set to 6 kA CBFP is supervising trip relay T1 and trip signal of an overcurrent stage dete...

Страница 108: ...L3 A A A Broken current of phase L1 Broken current of phase L2 Broken current of phase L3 Parameter Value Unit Description Set CBWEAR SET Alarm1 Current 0 00 100 00 kA Alarm1 current level Set Cycles...

Страница 109: ...message is received the deviation is already near zero Parameters AAIntv and AvDrft will show the adapted correction time interval of this 1 ms auto adjust function Time drift correction without exte...

Страница 110: ...ter values the system clock corrects itself with 1 ms every 9 9 seconds which equals 61 091 s week Example 2 If there is no external sync and the relay s clock has been lagging five seconds in nine da...

Страница 111: ...ernal DI SNTP SpaBus ModBus ProfibusDP IEC 103 DNP3 Clock synchronisation source No sync recognized since 200 s Digital input Protocol sync Protocol sync Protocol sync Protocol sync Protocol sync Prot...

Страница 112: ...hour counter parameters Parameter Value Unit Description Note Runh 0 876000 h Total active time hours Note The label text Runh can be edited with VAMPSET Set 0 3599 s Total active time seconds Set St...

Страница 113: ...e set to be as daily or according the day of week See the setting parameters for details The timer outputs are available for logic functions and for the block and output matrix Figure 3 7 1 Timer outp...

Страница 114: ...off i e 0 all the time Daily The timer switches on and off once every day Monday The timer switches on and off every Monday Tuesday The timer switches on and off every Tuesday Wednesday The timer swit...

Страница 115: ...0 1 Combined overcurrent start status AlrL1 AlrL2 AlrL3 0 AlrL1 1 orAlrL2 1 or AlrL3 1 LxAlarm On Off On Event enabling for AlrL1 3 Events are enabled Events are disabled Set LxAlarmOff On Off Off Ev...

Страница 116: ...ling for combined o c trips Events are enabled Events are disabled Set OCTripOff On Off Off Event enabling for combined o c starts Events are enabled Events are disabled Set IncFltEvnt On Off Disablin...

Страница 117: ...lt situation If the restarting fails the watchdog issues a self supervision alarm indicating a permanent internal fault When the watchdog circuit detects a permanent fault it always blocks any control...

Страница 118: ...d on fundamental frequency values The exceptions are frequency and instantaneous current for arc protection The figure shows a current waveform and the corresponding fundamental frequency component se...

Страница 119: ...in the order code of the relay The specified frequency range is 45 Hz 65 Hz Residual current inputs I01 I02 Measuring range 0 5 xIN Inaccuracy I 1 5 xIn 0 3 of value or 0 2 of IN I 1 5 xIn 3 of value...

Страница 120: ...he 15th harmonic component This is due to the nature of digital sampling The harmonic distortion is calculated using equation 1 15 2 2 h h THD i i where h1 Fundamental value h2 15 Harmonics Example h1...

Страница 121: ...of phase current IL1 IL2da A Demand of phase current IL2 IL3da A Demand of phase current IL3 4 5 Minimum and maximum values Minimum and maximum values are registered with time stamps since the latest...

Страница 122: ...IL1 IL2 IL3 X Phase current fundamental frequency value Io1 Io2 X Residual current The value can be a one cycle value or an average according parameter Timebase Parameters of the day and month registe...

Страница 123: ...uations but it defines the measurement range and the maximum allowed continuous current See chapter 9 1 1 for details Primary and secondary scaling Current scaling secondary primary SEC PRI SEC PRI CT...

Страница 124: ...I stage secondary per unit N SEC PRI SEC PU I CT CT I I SEC SEC PU CT I I per unit secondary PRI N SEC PU SEC CT I CT I I SEC PU SEC CT I I Example 1 Secondary to per unit and percent for phase curren...

Страница 125: ...cI CT 750 5 The relay setting is 2 pu 200 Secondary current is ISEC 2x5 10 A Example 5 Secondary to per unit for residual current Input is I01 or I02 CT0 50 1 Current injected to the relay s input is...

Страница 126: ...ve change over contacts SPDT Parameters of output relays Parameter Value Unit Description Note T1 T2 0 1 Status of trip output relay F A1 A5 0 1 Status of alarm output relay F IF 0 1 Status of the int...

Страница 127: ...ected parallel with inputs of an another device Label and description texts can be edited with VAMPSET according the application Labels are the short parameter names used on the local panel and descri...

Страница 128: ...racters Short name for DIs on the local display Default is DIn n 1 6 Set Description String of max 32 characters Long name for DIs Default is Digital input n n 1 6 Set Set An editable parameter passwo...

Страница 129: ...s Parameter Value Unit Description Set VI1 VI4 0 1 Status of virtual input Events On Off Event enabling Set NAMES for VIRTUAL INPUTS editable with VAMPSET only Label String of max 10 characters Short...

Страница 130: ...der DR and virtual outputs are configurable in the output matrix See an example in Figure 5 4 1 An output relay or indicator LED can be configured as latched or non latched A non latched relay follows...

Страница 131: ...age can be blocked The blocking signal can originate from the digital inputs DI1 to DI6 or it can be a start or trip signal from a protection stage or an output signal from the user s programmable log...

Страница 132: ...also an output signal Object failed which is activated if the control of an object fails Object states Each object has the following states Setting Value Description Object state Undefined 00 Actual...

Страница 133: ...tput Open information DI for obj close Close information Object timeout 0 02 600 s Timeout for state changes If changing states takes longer than the time defined by Object timeout setting object fail...

Страница 134: ...ia one selectable digital input The digital input is normally used to change a whole station to a local or remote mode The selection of the L R digital input is done in the Objects menu of the VAMPSET...

Страница 135: ...ocal port and extension port The front panel RS 232 port will shut off the local port on the rear panel when a VX003 cable is inserted Figure 6 1 1 Communication ports and connectors By default the X5...

Страница 136: ...using the command line protocol for VAMPSET regardless of the selected protocol for the rear panel local port If other than None protocol is selected for the rear panel local port the front panel conn...

Страница 137: ...Timeout errors since the device has restarted or since last clearing Clr speed DPS Default 38400 8N1 for VAMPSET Display of actual communication parameters speed bit s D number of data bits P parity n...

Страница 138: ...Modbus RTU slave Modbus TCP slave IEC 60870 5 103 slave Modbus RTU master for external I O modules DNP 3 0 Set Msg 0 232 1 Message counter since the device has restarted or since last clearing Clr Er...

Страница 139: ...bus slave Profibus DB slave Modbus RTU slave Modbus TCP slave IEC 60870 5 103 slave Modbus RTU master for external I O modules DNP 3 0 Set Msg 0 232 1 Message counter since the device has restarted or...

Страница 140: ...d line interface for VAMPSET Modbus TCP slave IEC 61850 protocol Ethernet IP protocol Set Port nnn Ip port for protocol default 102 Set IpAddr n n n n Internet protocol address set with VAMPSET Set Ne...

Страница 141: ...bus protocol for the local port and configure the VAMPSET to embed the command line interface inside SPA bus messages For ethernet interface configuration see chapter 6 1 4 6 2 2 Modbus TCP and Modbu...

Страница 142: ...The benefit of this mode is the speed and easy access to the data in the Profibus master The drawback is the maximum buffer size of 128 bytes which limits the number of data items transferred to the m...

Страница 143: ...r data to the master 1 3 OutBuf bytes Size of Profibus master s Tx buffer data from the master 2 3 Addr 1 247 This address has to be unique within the Profibus network system Set Conv VE Converter typ...

Страница 144: ...neous instances of this protocol using different physical ports are possible but the events can be read by one single instance only There is a separate document Spabus parameters pdf of SPA bus data i...

Страница 145: ...e to transfer parameter data or disturbance recordings via the IEC 103 protocol interface The following ASDU Application Service Data Unit types will be used in communication from the device ASDU 1 ti...

Страница 146: ...sInt 200 10000 ms Minimum measurement response interval Set SyncRe Sync Sync Proc Msg Msg Proc ASDU6 response time mode Set Set An editable parameter password needed Parameters for disturbance record...

Страница 147: ...2 and fibre optic interfaces are possible Parameters Parameter Value Unit Description Set bit s 4800 9600 default 19200 38400 bps Communication speed Set Parity None default Even Odd Parity Set SlvAdd...

Страница 148: ...atalist document Parameters Parameter Value Unit Description Note bit s 1200 2400 4800 9600 bps Bitrate used for serial communication Set Parity None Even Odd Parity used for serial communication Set...

Страница 149: ...ive send GOOSE messages to other relays IEC 61850 serve interface is capable of Configurable data model selection of logical nodes corresponding to active application functions Configurable pre define...

Страница 150: ...ed for addressing when the client is communicating to the device by default this is disabled Set The below parameters are ACSE association parameters described in the standard part 61850 8 1 AP ID nnn...

Страница 151: ...ontrol Supervisor 2 private objects one for digital data and one for analog data and 4 configuration objects for protection functions configuration Two configurable assemblies one producing and one co...

Страница 152: ...of product Product Code 1 65535 Identification of a particular product of an individual vendor Major Revision 1 127 Major revision of the item the Identity Object represents Minor Revision 1 255 Minor...

Страница 153: ...to protect the CTs and the wiring by limiting the voltage VS during heavy inside faults When there is a fault outside the protected zone the CT secondaries will cancel each other s currents This is p...

Страница 154: ...CTs are connected parallel with each other and then in series with the CT in the neutral point Figure 7 2 1 Overcurrent and restricted earth fault protection of transformer s wye winding All the CTs h...

Страница 155: ...t yield to a REF trip On the other hand a very high fault current causing an unselective earth fault start or trip is not a fatal error Class X CT In restricted earth fault protection the high and low...

Страница 156: ...rip1 CTSEC Nominal secondary current of the CT CTPRI Nominal primary current of the CT RCT Resistance of CT secondary RW Total resistance of wiring connections etc The CT should be of class X see chap...

Страница 157: ...of the CT CTPRI Nominal primary current of the CT RCT Resistance of CT secondary RW Total resistance of wiring connections relay input etc RS Stabilizing resistor according Equation 7 3 1 2 The peak v...

Страница 158: ...about twice the VS Serial resistance for the relay input Equation 7 3 1 2 RS 512 005 1024 1000 Maximum peak voltage during inside fault using a linear model for CT Equation 7 3 2 1 kV 6 12 1000 4 0 6...

Страница 159: ...6 CT model Figure 7 4 1 1 A CT equivalent circuit Lm is the saturable magnetisation inductance L is secondary of an ideal current transformer RCT is resistance of the CT secondary winding RW is resist...

Страница 160: ...hase error and composite error of a CT shall not exceed the values given in the following table Accuracy class Amplitude error at rated primary current Phase displacement at rated primary current Comp...

Страница 161: ...7 4 1 3 A i N i ALF A S S S S k k kALF Accuracy limit factor at rated current and rated burden Si Internal secondary burden Winding resistance RCT in Figure 7 4 1 1 SN Rated burden SA Actual burden i...

Страница 162: ...ty factor ISET Relative setting of the non stabilized differential current stage INTra Rated current of the transformer primary side or secondary side INCT Rated primary current of the CT primary side...

Страница 163: ...quation 7 4 2 2 L W CT N CT ALF A R R R R R k k where the nominal burden resistance is 2 sec NCT N N I S R RCT Winding resistance See Figure 7 4 1 1 RW Wiring resistance from CT to the relay and back...

Страница 164: ...8 x 500 A Winding resistance RCT 0 28 RCT depends on the CT type INCT and power rating Let s say that the selected CT type 500 A and an initial guess of 15 VA yields to 0 28 Safety factor c 3 Transfo...

Страница 165: ...58 0 20 753 3264 165 7 5 Protection of a Dyn11 transformer Figure 7 5 1 Differential protection of a Dyn11 transformer using VAMP 265 Primary and secondary current transformers are connected according...

Страница 166: ...pport phone 358 0 20 753 3264 VM265 EN011 Figure 7 5 2 Differential protection of a Dyn11 transformer using VAMP 265 Primary and secondary current transformers are connected according to additive pola...

Страница 167: ...ansformer VM265 EN011 VAMP 24h support phone 358 0 20 753 3264 167 7 6 Protection of a YNd11 transformer Figure 7 6 1 Differential protection of a YNd11 transformer using VAMP 265 Settings ConnGrp Yd1...

Страница 168: ...on 168 VAMP 24h support phone 358 0 20 753 3264 VM265 EN011 7 7 Protection of generator and block transformer Figure 7 7 1 Differential protection of a YNd11 transformer and generator using VAMP 265 S...

Страница 169: ...265 VM265 EN011 VAMP 24h support phone 358 0 20 753 3264 169 7 8 Application example of differential protection using VAMP 265 Figure 7 8 1 Differential protection of a generator using VAMP 265 Setti...

Страница 170: ...ir terminals with any other digital inputs 7 9 1 Trip circuit supervision with one digital input The benefits of this scheme is that only one digital inputs is needed and no extra wiring from the rela...

Страница 171: ...auxiliary relay is needed Using optional DI19 DI20 Note In the device only the optional digital inputs DI19 and DI20 are dry see the ordering code for this option Figure 7 9 1 1 Trip circuit supervisi...

Страница 172: ...ision using a single dry digital input when the circuit breaker is in open position Note If for example DI7 is used for trip circuit supervision the usage of DI8 DI14 is limited to the same circuitry...

Страница 173: ...margin Pcoil 50 W Rated power of the open coil of the circuit breaker If this value is not known 0 can be used for the Rcoil Umin Uaux 20 88 V Umax Uaux 10 121 V Rcoil U2aux P 242 The external resista...

Страница 174: ...for this short time peak power too However if the trip relay is closed for longer time than a few seconds a 1 W resistor should be used Using any of the non dry digital inputs DI1 DI6 In this scheme a...

Страница 175: ...ry relay K1 and an external resistor R The circuit breaker is in the closed position The supervised circuitry in this CB position is double lined The digital input is in active state when the trip cir...

Страница 176: ...om the trip circuit supervision point of view Relay type for the K1 auxiliary relay Phoenix Contact 2941455 EMG 17 REL KSR 120 21 21 LC Au UK1 120 Vac dc 20 10 Coil voltage of the auxiliary relay K1 I...

Страница 177: ...n includes a 100 safety margin to limit the maximum temperature of the resistor because modern resistors are extremely hot at their rated maximum power Equation 7 9 1 5 R I P K 2 max 1 2 P 2 0 0061 2x...

Страница 178: ...with the trip contacts Both inputs are configured as normal closed NC The user s programmable logic is used to combine the digital input signals with an AND port The delay is configured longer than ma...

Страница 179: ...t phone 358 0 20 753 3264 179 Figure 7 9 2 1 Trip circuit supervision with two dry digital inputs The CB is closed The supervised circuitry in this CB position is double lined The digital input is in...

Страница 180: ...ry digital inputs The CB is in the open position The two digital inputs are now in series Note If for example DI13 and DI7 are used as the upper and lower digital inputs in the Figure 7 9 2 2 the usag...

Страница 181: ...example of digital input configuration for trip circuit supervision with two dry digital inputs DI7 and DI13 Figure 7 9 2 4 An example of logic configuration for trip circuit supervision with two dry...

Страница 182: ...rear panel of the relay The generator transformer and motor differential protection relay is connected to the protected object through the following measuring and control connections Figure 8 1 1 Phas...

Страница 183: ...nt Io2 S1 11 I L1 Phase current I L1 S1 low voltage side 13 I L2 Phase current I L2 S1 low voltage side 15 I L3 Phase current I L3 S1 low voltage side 17 19 Terminal X1 right side No Symbol Descriptio...

Страница 184: ...pen connector Terminal X2 with the analogue output No Symbol Description 1 AO1 Analogue output 1 common positive connector 2 AO1 Analogue output 1 negative connector 3 AO2 Analogue output 2 common pos...

Страница 185: ...ip relay 2 13 T2 Trip relay 2 14 T1 Trip relay 1 15 T1 Trip relay 1 16 17 Uaux Auxiliary voltage 18 Uaux Auxiliary voltage Terminal X6 No Symbol Description 1 BI External arc light input 2 BO Arc outp...

Страница 186: ...n assignments of communication connectors including internal communication converters are presented in the following figures and tables 8 3 1 Front panel connector Figure 8 3 1 1 Pin numbering of the...

Страница 187: ...re 8 3 2 3 and Profibus Figure 8 3 2 4 are available See chapter 12 order information Table 8 3 2 1 Physical interface and connector types of remote port X5 with various options Serial interface A is...

Страница 188: ...Reserved 5 Reserved 6 Receive 7 Reserved 8 Reserved M 10Mbps Ethernet interface with IEC 61850 and Serial interface for external converters only REMOTE port D9S and RJ 45 D connector 1 reserved 2 TX_...

Страница 189: ...ransmit 3 Receive 4 Reserved 5 Reserved 6 Receive 7 Reserved 8 Reserved R 100 Mbps Ethernet fibre interface with IEC 61850 2 x LC LC connector from top Port 2 Tx Port 2 Rx Port 1 Tx Port 1 Rx S 100Mbp...

Страница 190: ...0 753 3264 VM265 EN011 Figure 8 3 2 1 Pin numbering of the rear communication ports REMOTE TTL Figure 8 3 2 2 Pin numbering of the rear communication ports REMOTE RS 485 Figure 8 3 2 3 Picture of rear...

Страница 191: ...Dip switch number Switch position Function RS 485 Function Fibre optics 1 Left 2 wire connection Echo off 1 Right 4 wire connection Echo on 2 Left 2 wire connection Light on in idle state 2 Right 4 w...

Страница 192: ...talled the parameter Arc card type has value 2Arc BI O Please check the ordering code in chapter 12 NOTE If the slot X6 is already occupied with the DI19 DI20 digital input card this option is not ava...

Страница 193: ...is available Please check the ordering code in chapter 12 NOTE If the slot X6 is already occupied with the two channel arc sensor card chapter 8 4 this option is not available The DI19 DI20 option en...

Страница 194: ...t output modules used to extend the number of digital inputs and outputs Also modules for analogue inputs and outputs are available The following types of devices are supported Analog input modules RT...

Страница 195: ...ion read errors X 32000 32000 Y 1000 1000 Scaling Y2 Scaled value Point 2 X2 Modbus value Y1 Scaled value Point 1 X1 Modbus value 32000 32000 Off set Subtracted from Modbus value before running XY sca...

Страница 196: ...nge Description 0 10000 Hysteresis for alarm limits 21x107 21x107 Alarm Limit setting Alarm Active state 21x107 21x107 Alarm Limit setting Alarm Active state Active value 1 9999 Modbus register for th...

Страница 197: ...197 External digital inputs configuration VAMPSET only Range Description Communication read errors 1 16 Bit number of Modbus register value CoilS InputS InputR or HoldingR Modbus register type 1 9999...

Страница 198: ...VAMP 24h support phone 358 0 20 753 3264 VM265 EN011 External digital outputs configuration VAMPSET only Range Description Communication errors 1 9999 Modbus register for the measurement 1 247 Modbus...

Страница 199: ...odbus value corresponding Linked Val Max Modbus value corresponding Linked Val Min InputR or HoldingR Modbus register type 1 9999 Modbus register for the output 1 247 Modbus address of the I O device...

Страница 200: ...8 7 Block diagrams 8 Connections Technical description 200 VAMP 24h support phone 358 0 20 753 3264 VM265 EN011 8 7 Block diagrams Figure 8 7 1 Block diagram of VAMP 265...

Страница 201: ...11 VAMP 24h support phone 358 0 20 753 3264 201 8 8 Block diagrams of option modules 8 8 1 Optional arc protection Figure 8 8 1 1 Block diagram of optional arc protection module 8 8 2 Optional DI19 DI...

Страница 202: ...8 9 Connection examples 8 Connections Technical description 202 VAMP 24h support phone 358 0 20 753 3264 VM265 EN011 8 9 Connection examples Figure 8 9 1 Connection example of VAMP 265...

Страница 203: ...t measuring range 0 25 A Thermal withstand 20 A continuously 100 A for 10 s 500 A for 1 s Burden 0 2 VA Rated residual current 1 A configurable for CT secondaries 0 1 10 A Current measuring range 0 5...

Страница 204: ...acity AC 2 000 VA Breaking capacity DC L R 40ms at 48 V dc at 110 V dc at 220 V dc 5 A 3 A 1 A Contact material AgNi 90 10 Terminal block Maximum wire dimension Phoenix MVSTBW or equivalent 2 5 mm2 13...

Страница 205: ...range 1 3 31 mA NOTE If the drain is outside the range either sensor or the wiring is defected Number of binary inputs 1 optically isolated Operating voltage level 48 V dc Number of binary outputs 1...

Страница 206: ...periods in X Y and Z axis direction Shock IEC 60255 21 1 half sine acceleration 5 g duration 11 ms Class I 3 shocks in X Y and Z axis direction 9 2 4 Environmental conditions Operating temperature 10...

Страница 207: ...ing 5 30 or disable Reset time 95 ms Reset ratio 0 95 Inaccuracy 2nd harmonic blocking 1 unit Starting 3 of set value or 0 02 x In when currents are 200 mA Operating time Id 1 2 x Iset 60 ms Operating...

Страница 208: ...rse This is the instantaneous time i e the minimum total operational time including the fault detection time and operation time of the trip contacts Overcurrent stages I and I 50 51 Pick up current 0...

Страница 209: ...range I0 0 02 8 00 When I0 or I02 0 05 20 0 When I0Calc Definite time function DT Operating time 0 08 300 00 s step 0 02 s IDMT function Delay curve family DT IEC IEEE RI Prg Curve type EI VI NI LTI...

Страница 210: ...i e the minimum total operational time including the fault detection time and operation time of the trip contacts 9 3 3 Second harmonic function 2 Harmonic stage 51F2 Settings Setting range 2 Harmoni...

Страница 211: ...ccuracy Starting 10 of the set value Operating time 5 ms Delayed ARC light 10 ms Arc protection stage ArcI0 50NARC option Setting range 0 5 10 0 x In Arc sensor connection S1 S2 S1 S2 BI S1 BI S2 BI S...

Страница 212: ...following settings The recording time and the number of records depend on the time setting and the number of selected channels Disturbance recorder DR Mode of recording Saturated Overflow Sample rate...

Страница 213: ...sors Hysteresis I e dead band Used to avoid oscillation when comparing two near by values I01n Nominal current of the I01 input of the relay I02n Nominal current of the I02 input of the relay I0n Nomi...

Страница 214: ...11 Construction Technical description 214 VAMP 24h support phone 358 0 20 753 3264 VM265 EN011 11 Construction...

Страница 215: ...Optional software A Version 2 firmware C Version 6 firmware E Standard firmware M Standard firmware Motor functions Note Optional hardw are A H available Optional hardw are A G available Accessories...

Страница 216: ...cription of running virtual comtrade files with VAMP relays added in chapter Disturbance recorder Auxiliary voltage text corrected VM265 EN010 Figure 7 9 1 5 correction Firmware revision history Firmw...

Страница 217: ...are not compatible with 10 x firmware Native IEC61850 support including GOOSE added DeviceNET protocol support added UTF 8 support for local HMI panel Russian added RTD Inputs Quick Setup support adde...

Страница 218: ...Documentation Mounting and Commissioning Instructions VMMC EN0xx VAMPSET User s Manual VMV EN0xx Manufacturer Service data VAMP Ltd P O Box 810 FIN 65101 Vaasa Finland Visiting address Yritt j nkatu 1...

Страница 219: ...VM265 EN011...

Страница 220: ...erve the right to changes without prior notice VAMP Ltd Street address Yritt j nkatu 15 Phone 358 20 753 3200 Post address Fax 358 20 753 3205 P O Box 810 FIN 65101 Vaasa Internet www vamp fi Finland...

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