5TT3 4 voltage and frequency relays

Transcription

1 s SENTRON 5TT3 4 volage and frequency relays Sandard-complian grid and plan proecion for in-plan power generaion sysems Reliable grid monioring for energy infeed The 5TT3 4 volage and frequency relay is used for grid monioring in he case of energy infeed from in-plan generaion sysems. I reliably moniors he grid parameers sipulaed in he VDE-AR-N 4105 applicaion guide, and safely disconnecs he inplan generaion sysem from he grid if impermissible volage and frequency values are deeced. High availabiliy and sabiliy of he power supply neworks are hus ensured. Simple parameer seing and monioring of he plan saus Handling and operaion of he 5TT3 4 volage and frequency relay couldn' be simpler: Laching roary swiches ensure easy and fas seing of he grid parameers o be moniored. Plan saus and faul diagnosics are displayed on an inegral LCD display. In addiion, he device can be used flexibly for boh cenralized and inegraed grid and plan proecion. Highlighs 7 Complian wih VDE-AR-N Can be used flexibly for cenralized and inegraed grid and plan proecion 7 Safe disconnecion of he in-plan generaion sysem from he grid if limis are violaed Answers for infrasrucure and ciies.

2 Monioring Devices Monioring Devices for Elecrical Values 5TT3 volage and frequency relays Overview The volage and frequency relay moniors he saus of he grid in he case of in-plan generaion sysems. Violaion of an upper or lower limi resuls in shudown and disconnecion of he generaion sysem from he grid. Connecion or auomaic re-connecion of he generaion sysem o he grid only akes place when he grid frequency and he grid volage have remained wihin heir respecive olerance ranges wihou inerrupion for he duraion of an adjusable ime delay W. Following shudown due o a brief inerrupion, re-connecion akes place when he grid frequency and grid volage have remained wihin he olerance range for 5 s wihou inerrupion. Benefis The volage and frequency relay mees he high requiremens of VDE AR-N 4105 I can be used boh for cenralized and inegraed grid and plan proecion The laching roary swiches enable fas and easy seing of he required values An illuminaed LCD display provides plan saus informaion The volage and frequency relay ensures single-faul olerance as sipulaed in he VDE AR-N 4105 applicaion guide. Applicaion L1 L1 L2 L2 L3 L3 N Low-volage sysem N Low-volage sysem 3-phase Safe exernal disconnecion, e.g. via ripple conrol receiver L1 L2 L3 N 11 X1 CG 1 B CG 2 KA KE L1 L2 L3 N 11 X1 B CG 2 KA KE B2 B2 X2 X Coupling swich 1 Q1 I202_02440 (+) (-) enabled disabled Coupling swich 1 Q1 I202_02441 CG = clock-pulse generaor Q2 Coupling swich 2 Inverers Generaor(s) Generaion sysem exernal CG CG =clock-pulse generaor Q2 Coupling swich 2 Inverers Generaor(s) Generaion sysem Enable via exernal conac Enable using exernal volage 24V AC, Hz 2 Siemens 2012

3 Monioring Devices Monioring Devices for Elecrical Values 5TT3 volage and frequency relays Technical specificaions Volage and frequency relay 5TT TT3 427 Sandards IEC/EN ; IEC/EN 61000; VDE-AR-N-4105 Power supply U v V AC 3 x Supply volage B1/B2 V AC 24 (a Hz) Raed conrol volage U c V AC 230/400 Raed impulse wihsand volage Acc. o IEC Conac 31, 32, 34 kv 6 KA, KE and measuring circui kv 4 Polluion degree 2 Temperaure range C (in he range 0 C C, here may be resricions o he funcionaliy of he LCD display) Resisance o climae Acc. o IEC/EN /060/04 Conducor cross-secions Rigid, flexible mm Flexible, wih end sleeve mm Muli-conducor connecion 2 conducors mm of same cross-secion EMC Elecrosaic discharge (ESD) Acc. o IEC/EN kv 8 RF radiaion Acc. o IEC/EN V/m 10 Rapid ransiens Acc. o IEC/EN kv 4 Surge volages Acc. o IEC/EN Beween supply lines kv 2 Beween line and ground kv 4 Oupu relay Mode of operaion Quiescen curren Conacs NO conac AC15 A AC/V AC 3/230 NC conac AC15 A AC/V AC 1/230 Thermal curren A AC 5 Elecrical service life NO conac AC15, 1A, AC230 Swiching cycles Rise in frequency Hz Drop in frequency Hz Rise in volage Phase/neural V AC Phase/phase V AC Drop in volage Phase/neural V AC 184 Phase/phase V AC Mean rise in volage over 10 minues Phase/neural V AC Phase/phase V AC Re-connecion ime w sec Disconnecion response ime ms < 100 Connecion condiion Frequency % 5 Volage Hz Accuracy Frequency % (±1 digi) ±1 Volage % (±1 digi) ±0.02 Siemens

4 Monioring Devices Monioring Devices for Elecrical Values 5TT3 volage and frequency relays Selecion and ordering daa Conacs U e I e U c Mouning widh Volage and frequency relays DT Order. Price per PU PU (UNIT, SET, M) PS*/ P. uni PG Weigh per PU approx. V A V AC MW kg for monioring grid infeeds 30 kva 3 CO / TT uni For monioring grid infeeds > 30 kva 3 CO / TT uni TT3 426 Dimensional drawings L1 L2 L3 N KA KE X1 B1 B2 X I202_ , Siemens 2012 * You can order his quaniy or a muliple hereof.

5 Monioring Devices Monioring Devices for Elecrical Values 5TT3 volage and frequency relays Circui diagrams L1 L2 L3 N KAKE U < > Channel 1 11 Ū10m> w K1 f < > or K U < > Channel 2 21 Ū10m> w K2 f < > 2224 X1 B1 B2 X I202_02439 Conacs L1/L2/L3 N B1/B2 B1-X1 / B2-X2 Conac assignmens Phase connecion Neural conducor connecion Enable inpu Opion for connecing exernal devices: For deecing islanding For connecing a ripple conrol receiver for safe exernal disconnecion For connecing an exernal clock generaor -> Enable via an exernal volage 24 V AC Hz Oupu relay K3 (signaling relay) signals disconnecion of he in-plan generaion sysem when a faul occurs KA/KE Conacs feedback circui. If he coupling swiches are in he neural posiion (NC conacs closed), he feedback circui KA-KE mus be closed, oherwise faul "KS" is deeced. If he feedback circui is no required, erminals KA/KE mus be jumpered / Relay K1 and K2 for conrolling he coupling swiches. If a U<> or f<> faul occurs, boh relays K1 and K2 reurn o he neural posiion, prevening conrol of he coupling swiches. 5TT3 426 and 5TT3 427 K1 / K2 U > 230/400 V < / / : U< w : U>> w I201_18579 Volage f > 50 Hz K1 / K2 < / / : f< w : f> w I201_18578 Frequency U eff U>10min K1 / K2 230 V / / : U 10m> w I201_18580 Mean volage value Siemens

6 Monioring Devices Monioring Devices for Elecrical Values 5TT3 volage and frequency relays More informaion Order number index incl. expor markings Order. 5TT3 Expor markings ECCN 5TT3 426 N N 5TT3 427 N N AL 6 Siemens 2012

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