SPAJ160C_EN_D說明書.pdf

SPCJ 4D40 REGISTERSOPERATION IND. 00000 RS 421Ser.No. SPAJ 160 C 2 5 0127A fn= 50Hz 60Hz aux 80.265V 18.80V n I= 1A5A ( )I ( ) n I=I1A5A U 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 RECONN. INH. EXTERN. TRIP( )t Ib ALARMIa STARTIb TRIPIb TRIP PROGRAM RESET STEP L1L2L3 IRFIIII 0128A SGR SGB SGF 3I 3I I cs I n II% 1 n II% 2 k2 t1s t rec min n I% c ABB Automation SPAJ 160 C Capacitor protection relay Users manual and Technical description 2ABB Automation SPAJ 160 C Capacitor protection relay ContentsCharacteristics 2 Area of application (modified 97-10). 3 Description of operation (modified 96-11) 5 Connection diagram . 7 Connections . 9 Control signals between modules 10 Abbreviations of signal names 11 Operation indicators. 12 Power supply and output relau module. 14 Technical data (modified 96-11) 15 Maintenance and repairs. 18 Spare parts 18 Ordering numbers 18 Dimensions and instructions for mounting 19 Information required with order. 19 The complete users manual also includes the following documents: General characteristics of D-type relay module1MRS 750066-MUM EN Capacitor bank relay module type SPCJ 4D401MRS 750065-MUM EN CharacteristicsOne-, two- and three-phase overload stage with definite time charcteristic One-, two- and three-phase overload stage with inverse (ANSI) time charcteristic Phase unbalance protection stage with definite time charcteristic Phase unbalance protection stage with inverse time charcteristic Undercurrent protection for detection of capaci- tor disconnection. Reconnection time with wide setting range Compensation for natural unbalance current Fully selectable output relay configuration Easy selection of appropriate operational scheme for various applications Numerical display of setting values, current measured values, memorized values etc. Continuous self-supervision of hardware and software Optical serial communication over the SPA bus provides access from a higher level central unit to all set and measured values and to memo- rized fault values. Various events can also be se- lected to be automatically read by a control data communicator and printed out. 1MRS 750064-MUM EN Issued 95-05-02 Modified 97-10-16 Version D Checked GL Approved YK Data subject to change without notice 3ABB Automation Area of application (modified 97-10) The main application area for the relay is to protect capacitor banks intended for reactive power compensation and filtering of the har- monics. The capacitor banks are usually protected against overload produced by harmonic currents and overvoltage caused by internal faults in the bank. A protection against reconnection of a charged capacitor to a live network should also be included. All these functions can be found in SPAJ 160 C. An earth-fault and overcurrent protection is of- ten used for selective network protection. In this case an overcurrent and earth-fault protection relay from the SPACOM-family can be con- nected to the same current transformer as SPAJ 160 C. Application examples Fig.1. Protection of a capacitor bank connected as a double-star in a distribution network with three-phase current measurement. 2I I 2I/U I/U 3I/U I/U I 3I/U I/U I 1I/U I/U IN-N e.g. SPAA 120 C or SPAA 121 C SPAJ 160 C Fig.4. Protection of a one-phase bridge connected capacitor filter bank. 5ABB Automation Description of operation (modified 96-11) The alarm stage has a definite time characteris- tic. Both the starting value and the operating time are available for setting. To match the re- lay to the rated current of the capacitor bank a correction setting value is available. By using this setting value it is possible to multiply the signal from the current transformers by a factor within the range 0.30.1.50. The undercurrent protection, operating with definite time characteristic, is detecting a possi- ble undercurent in the capacitor bank. When all three phase currents are opeating below the starting value and the operating time has elapsed the output alarm will be activated. The recon- nection inhibit function connected to the un- dercurrent protection will be activated at the same time. The reconnection inhibit signal will be active until the set time has elapsed and is used to inhibit the reconnection of a charged capacitor bank to a live network. Both the start- ing value and the operating time for the under- current protection and the setting time for the reconnection inhibit are available for setting. The unbalance protection measures only the basic frequency component of the current. The protection function includes two stages of which one is alarming and the other tripping. To im- prove unbalance detection in the capacitor bank the relay is provided with a settable compensa- tion of natural unbalance. Both the amplitude and phase angle are compensated. The trip stage is based on inverse time characteristic and the curve has similar gradient to the normal inverse curve.The starting value can be set within the range 2.80% of the nominal input current of the relay. The gradient of the curve can be changed by the k-factor within the range 0.1.1. It is possible to increase the inverse characteris- tic time by a factor 10 by setting switch SGF/6 to position 1. The signal stage has a definite time characteris- tic. Both the starting value and the operating time are available for setting. By using the un- balance compensation natural unbalance cur- rents within the range 1.20% of the relays nominal input current can be compensated. By appropriate programming of the output re- lay matrix, various starting, alarm or reconnec- tion inhibit signals are received as contact func- tions. This contact information is used e.g. for the blocking of co-operating protective relays located upstream, for connection to annuncia- tion units etc. The protective relay measures the phase currents of the capacitor bank one-, two- or three phase. The currents are internally transformed by the relay to signals that will be directly proportion- ally to the voltages over the bank. The relay is also measuring the unbalance cur- rent that may arise in a capacitor bank. The in- put current is in this case measured by a current transformer connected between the starpoints in a double-star connection according to fig. 5 or between the branches in a single-phase bridge connection according to fig. 6. Fig. 5. Fig. 6. The protective relay is a multifunction type of relay and includes functions for overload pro- tection, unbalance protection and undercurrent protection combined with reconnection inhibit to prevent reconnection of a charged capacitor bank to a live network. The overload protection is mainly a overvoltage protection. It measures peak values with the measured harmonics up to and including the 13th order. The overload protection includes two stages. One stage is alarming and the other is for tripping. The trip stage is based on in- verse time characteristic and the inverse curve is based on ANSI/IEEE C37.99 and IEC 871- 1 recommendations for the capacitor banks volt- age withstand related to time. The gradient of the curve can be changed by a k-factor within the range 0.2.2.0. 6ABB Automation The capacitor bank relay contains one external logic control input, which is activated by a con- trol signal of the auxiliary voltage level. The in- fluence of the control input on the relay is de- termined by programming switches of the meas- uring module. The control input can be used either for blocking one or more of the protec- tive stages, for carrying out an external trip or- der, for inhibiting a reconnection attempt or/ and for resetting a latched output relay in the manual reset mode. The protective relay is provided with a man- machine interface on the front panel. The man- machine interface shows relay activations, meas- ured values, maximum value registrations, start- ing counters, time counters and setting values. All changes of setting values can be made by using the push-buttons on the front panel. Through the serial bus the man-machine com- munication can be obtained either by using a PC with a setting tool program, a SCS local control system or a microSCADA remote con- trol system. SIGNAL 1 IL1 IL2 IL3 I SIGNAL 2 COMPENSATION FOR NATURAL PHASE UNBALANCE 37 62 51N OVERLOAD PROTECTION CAPACITOR BANK PROTECTION WITH ALARM/TRIP STAGE UNDERCURRENT DETECTION FOR RECONNECTION INHIBIT RECONNECTION INHIBIT TIMER SERIAL COMMUNICATION TRIP START RECOCONNECTION ENABLE IRF SERIAL I/O CONTROL INPUT BS1 Fig. 7. Checking functions of the capacitor bank overload and unbalance prot. relay type SPAJ 160 C. 7ABB Automation Connection diagram SPAJ 160 C 636261 1 A 5 A 1 A 5 A 25 26 271 23 4 5 67 89 1 A 5 A L1 L2 L3 70 71 72 0 65 66 Uaux + () - () IRF 68 6977 78 IRF SIGNAL 1 - + TRIP 7475 SIGNAL 2 80 811011 11 SGB/1 SGB/2 SGB/7 SGB/8 SGB/3 TRIP R START RECONNECTION INHIBIT 1 I - I0 + + + B + C + F + E + D + A SGB/4 I/O 3I TS1SS1SS2SS3TS2 SGR1/3 I2 SGR1/4 SGF/1 SGR1/5 SGR1/8 SGF/2 SGR1/6 SGR2/8 3Ib SGR2/7 SGR2/6 SGR2/5 SGR2/4 SGR2/3 SGR2/2 SGR2/1 1 T8 T2 T5 T4 T3 T6 T7 T9 T1 1 A 5 A +- _ SPA-ZC_ RxTx SERIAL PORT Fig. 8. Complete connection diagram for the capacitor bank protection relay SPAJ 160 C with all the relay matrix and blocking/control input programming switches shown. UauxAuxiliary voltage A, B, C, D, E, FOutput relays IRFSelf-supervision SGB1Switchgroup for the configuration of the blocking and control signals TRIPTrip output relay, output 65-66 SIGNAL 1Signal on tripping SIGNAL 2Signal on tripping STARTSignal on starting RECONN. INHIBITConnection inhibited in fault conditions U1Capacitor bank protection relay module SPCJ 4D40 U2Power supply and output relay module SPTU 240 R2 or SPTU 48 R2 with a normally open trip contact U3Input module SPTE 4E3 Rx TxSerial communication interface T1.T9Operation indications SPA-ZC-Bus connection module 8ABB Automation Fig. 9. Rear view of relay SPAJ 160 C Rx Tx 68 69 77 78 80 81 Made in Finland 1 2 3 4 5 6 7 8 9 25 26 27 61 62 63 65 66 74 75 70 71 72 10 11 9ABB Automation Connections TerminalFunction 1-2Phase current IL1, 5 A 1-3Phase current IL1, 1 A 4-5Phase current IL2, 5 A 4-6Phase current IL2, 1 A 7-8Phase current IL3, 5 A 7-9Phase current IL3, 1 A 25-26Phase unbalance current 5 A 25-27Phase unbalance current 1 A 61-62Auxiliary supply voltage. At d.c. auxiliary supply voltage the positive lead is con- nected to terminal 61. 63Protective earth 10-11Blocking- and control input. Can be used as an external blocking input inhibiting overload, phase unbalance or undercurrent protection. As an control input it can be used for an external trip signal, for unlatching the trip relay and for the recon- nection inhibit relay. The function is selected with SGB-switches in the protection relay module. 65-66Output relay A is a heavy duty relay which provides CB tripping commands. A latching function of the output relay A can be selected by means of switches SGB1/6 and SGB1/7. Switch SGB1/6 gives a latching function after an overload tripping. Switch SGB1/7 provides a latching function after a phase unbalance trip. The latched output relay can be reset locally or by remote control. The undercurrent unit can be made tripping with switch SGF/2. Also the overload stage Ia can be made tripping with switch SGF/1. 68-69The signals to be routed to output relays B and C are selected with switches 5.8 of 80-81 switchgroup. The signals to be routed to output relays B and C are selected with switches 5.8 of switchgroup SGR1 and switches 1.8 of switchgroup SGR2 of the measuring module. Normally overload stage Ib start signal is linked to relay C and the overload stage Ia alarm signal is linked to output relay B. 77-78The signals to be routed to the output relay D are selected by means of switches 1.4 of switchgroup SGR1. Switch SGR1/1 links the overload Ia alarm, switch SGR2/2 links the oveload Ib start, switch SGR2/3 links the phase unbalance alarm of stage I1 and switch SGR2/4 links the phase unbalance start signal of stage I2 to output relay D. 74-75Output relay E is a heavy duty output relay capable of controlling a circuit breaker. Relay E is normally used for controlling the reconnection of the capacitor bank. If the reconnection inhibit signal is active the output relay E prevents a reconnection attempt of the capacitor bank. This also applies to a condition where the protec- tive relay is out of auxiliary voltage or the relay is faulty. 70-71-72Output relay F operates as an self-supervision output relay. Under normal condi- tions the relay is operated and the contact gap 70-72 is closed. If a fault is de- tected by the self-supervision system, or if the auxiliary supply fails, the output relay drops off, providing an alarm signal by closing the NO contact 71-72. The relay is interfaced with the SPA serial com- munication bus through a 9-pole, D-type subminiature connector located at the rear panel of the relay. By means of the bus connection modules SPA-ZC21 or SPA-ZC17 the relay can be linked to the serial bus and further to a con- trol data communicator, e.g. SACO 148D4 or SRIO 500/1000M. 10ABB Automation Control signals between the modules The figure below schematically illustrates how the closing and alarm signals are connected be- tween measuring and output relay module. The functions of the blocking, starting and trip- ping signals are selected with the switches of switchgroups SGF, SGB1.3 and SGR1.2. The checksums of the switchgroups, are found in the setting menu of the measuring relay mod- ule. The functions of the different switches are explained in the users manual of the measur- ing module SPCJ 4D40. Fig. 10. Control signals between the modules of the capacitor bank relay SPAJ 160 C. IL1 IL3 SGR2 / 3 1 RESET+. PROGRAM 1 RESET+. PROGRAM 1 1 SS1 SS2 TS1 TS2 SS3 RESET TRIP AR2 AR1 SGB1 / 6 SGB1 / 7 COMPLETE RELAY RESET SGB1.3 / 8 SGB2.3 / 7 SGB2.3 / 6 TRIP INDICATOR RESET BS1 BS2 RRES SGB13 / 1 TRIP INDICATOR + OUTPUT RELAY RESET IL2 Ia ta 70 ms k Ib I1t1 I2 k2 70 ms SGB1.3 / 2 SGB1.3 / 3 I SGB1.3 / 5 SGB1.3 / 4 SGR1 / 1 SGR2 / 1 SGR1 / 5 SGF / 1 SGR1 / 2 SGR2 / 2 SGR1 / 6 SGR1 / 3 SGR2 / 4 SGR2 / 7 SGR1 / 8 SGF / 2 SGR2 / 6 SGR1 / 7 SGR1 / 4 SGR2 / 5 SPCJ 4D40 RECONNECTION INHIBIT EXTERNAL TRIP SGR2 / 8 t 200ms t rec COMP Ics Ic I IRF START SIGNAL 2 SIGNAL 1 TRIP SPTU_R2 A B C D E F RECONN. INHIBIT 11ABB Automation Abbreviations of signal names IL1, IL2, IL3Phase currents IPhase unbalance current IcCompensated phase unbalance current BS1, BS2 ,RRESExternal blocking or resetting signals SS1Starting Signal 1 SS2Starting Signal 2 SS3Starting Signal 3 TS1Tripping Signal 1 TS2Tripping Signal 2 AR1.3Auto-Reclose starting signals (not used in SPAJ 160 C) IRFInternal Relay Fault signal SS1Starting Signal 1 SGFSwitch Groups for functions SGB1.3Switch Groups for blockings SGR1.2Switch Groups for relay configuration Rx/TxReceiver/Transmitter channel 12ABB Automation Operation indicators SPCJ 4D40 REGISTERSOPERATION IND. 00000 RS 421Ser.No. SPAJ 160 C 2 5 0127A fn= 50Hz 60Hz aux 80.265V 18.80V n I= 1A5A ( )I ( ) n I=I1A5A U 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 RECONN. INH. EXTERN. TRIP( )t Ib ALARMIa STARTIb TRIPIb TRIP PROGRAM RESET STEP L1L2L3 IRFIIII 0128A SGR SGB SGF 3I 3I I cs I nI I% 1 nI I% 2 k2 t1s trecmin nI% c and the indicators IL1 and IL2 are ON at the same time, overcurrent has occurred on phase L1 and L2. C) Besides being a code number at data presen- tation, the leftmost red digit in the display serves as a visual operation indicator. An operation indicator is recognized by the fact that the red digit alone is switched on. The operation indi- cation from a start or the reconnection inhibit is always replaced by a new operation indica- tion. On the other hand an operation indica- tion from a stage connected to the trip relay A can not be replaced by a new operation indica- tion. In order to enable reading of actual cur- rent levels etc. when reconnection time is run- ning, it is possible to acknowledge the indica- tion 8 while the unit is still activated. The same applies to the external trip indication 9. In these cases the indications are memorized and reap- pear when the display is dark. Operation indi- cator 8 is automatically reset when the capaci- tor bank is reconnected. The following table, named OPERATION IND. on the relay front panel, is a key to the operation indicator code numbers used. A) The indicator TRIP is lit when one of the protection stages operates. When the protection stage returns, the red indicator remains alight. B) If the display is dark when one of the pro- tection stages Ia or Ib request for tripping, the faulty phase is indicated with a yellow LED. If, for instance, the TRIP indicator glows red, IndicationExplanation 1Ia alarm= The overload stage Ia has given an alarm 2Ib start= The overload stage Ib has started 3Ib trip= The overload stage Ib has tripped 4I1 alarm= The stage I1 has given an alarm 5I2 start= The stage I2 has started 6I2 trip= The stage I2 has tripped 7I persistent On delivery from factory the switches SGF/3.4 = 0 E) The self-supervision alarm indicator IRF in- dicates that the self-supervision system has de- tected a permanent fault. The indicator activates with a red light about 1 minute after the fault has been detected. At the same time the plug-in module delivers a signal to the self-supervision system output relay of the protection assembly. Additionally, in most cases, a fault code show- ing the nature of the fault appears on the dis- play of the module. The fault code, consists of a red figure one and a green code number, this cannot be erased from the display of the mod- ule by resetting. When a fault occurs, the fault code should be recorded and stated when serv- ice, is ordered. D) The operation indicator on the display and the “TRIP“ indicator persist when the protec- tive stage returns to normal. The indicators are reset by pushing the RESET/STEP pus