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SIPROTEC 4 Distance Protection 7SA6 - PowerPoint PPT Presentation


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SIPROTEC 4 Distance Protection 7SA6. What is SIPROTEC 4?. SIPROTEC 4 is the family of numerical Protection, Control and Substation Automation devices by SIEMENS. The protection functions are not new!. What is SIPROTEC 4?.

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SIPROTEC 4 Distance Protection 7SA6


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    1. SIPROTEC 4 Distance Protection 7SA6

    2. What is SIPROTEC 4? SIPROTEC 4 is the family of numerical Protection, Control and Substation Automation devices by SIEMENS

    3. The protection functions are not new! What is SIPROTEC 4? They were therefor largely taken over from existing devices.

    4. SIPROTEC 4 What makes these devices so attractive ? The optional integrated local and remote control

    5. F1 Log. IN 1 Log.OUT1 >1 F2 Log. IN 2 CFC Log.IN3 Logic outputs to the matrix Logic inputs to the CFC from the Matrix SIPROTEC 4 What makes these devices so attractive ? The ability to integrate bay level interlocking • Additional functions • Interlocking • Processing of measured values

    6. L1 402.1A Max450.1A L2 401.2A Max421.2A L3 401.0A Max431.4A E 00.0A % IL UL-E UL-L L1 100.0 100.4 100.1 L2 100.4 100.3 100.0 L3 100.1 100.1 100.4 SIPROTEC 4 What makes these devices so attractive ? The comprehensive measured value processing I1 :400.9A f:50.0Hz U1:12.22kV P :+8.03MW cos Q :+2.64MVar

    7. SIPROTEC 4 What makes these devices so attractive ? The connection of switchgear without interposing devices

    8. SIPROTEC 4 What makes these devices so attractive ? The robust terminals

    9. SIPROTEC 4 What makes these devices so attractive ? The flexible communication interfaces as Fibre Optic or electrical • exchange • retrofit

    10. SIPROTEC 4 What makes these devices so attractive ? The user friendly operation with DIGSI 4

    11. SIPROTEC 4 System 7SA522 7SJ63 Experience 7SA6 Requirements Variability SIPROTEC 4Hardware Modules Distance protection: Presence and Future 7SA510 7SA511 7SA513

    12. SIPROTEC 4 Distance protection 7SA6 7SA6 Distance protection for all voltage levels

    13. SIPROTEC 4 Distance protection 7SA6 Protection and automation 4-line display Full functionality in all housing options!

    14. SIPROTEC 4 Distance protection 7SA6 Protection, automation and local control Integrated graphic display Full functionality in all housing options!

    15. SIPROTEC 4 Distance protection 7SA6 Protection, automation local control detached HMI Full functionality in all housing options!

    16. Automatic reclosure Earth fault detection (isolated/compensated systems) Earth fault (short circuit) protection Breaker Fail protection 2-stage Non-switched distance protection Synchro check Voltage protection Fault locator 20mA, BCD SIPROTEC 4Distance protection 7SA6

    17. Distance Fault Gnd Directional Over- STUB Locator O/C Ground current O/C 50 50N-2 50N 50STUB 21 21N FL 67N 51 51N-2 51N 68 85-67N 85-21 50HS 50BF 59 27WI 25 68T Synchro- Power Pilot Weak Pilot Switch Bkr. Over- check Swing Dist. infeed Gnd onto- fail. voltage Flt. O/C Local/Tele Ctrl. Auto- 52 79 Commands reclosure CB Indications Operat. CFC Logic Trip Circuit values Lockout supervision 74TC 86 Serial Communication Super- vision Interfaces Pilot schemes can use one channel or two redundant channels to the remote end Note: Pilot schemes = Teleprotection SIPROTEC 4Distance protection 7SA6 - functions

    18. SIPROTEC 4Distance protection 7SA6 - Highlights 7SA6 = Distance protection range for MV, HV and EHV 7SA6 includes all the functions of 7SA511/510 and 7SA513 Distance protection always with 6 measuring systems, fault detection selectable as either I>, Z<, U/I and U/I/ Can be applied in systems with compensated, isolated or solid earthing Scope of functions and measurements increased in comparison with 7SA51 Housing and input/output version for each application All protection functions are available in all housing versions SIPROTEC 4 = Programmable logic, control, interlocking local control is optional SIPROTEC 4 = Communication interfaces Various tele-control protocols and physical connections options are available Via serial interface, tele-prot. can be implemented with standard comms. networks (G703, V11/X21) or async. direct connection (not available at product launch)

    19. Fully redundant • 2 communication channels • Direct coupling (G703,V11/X24) (in preparation) Channel1 DIF 7SD52 7SD52 DIS Channel2 7SA6 7SA6 DIF Channel 7SD52 7SD52 • 1 Communication channel • Distance protection coupling to 7SD52with signal transfer via contacts Contacts Contacts DIS 7SA 7SA SIPROTEC 4Cost optimised protection schemes

    20. 7SA6Some enhancements • Distance protection always with 6 measuring systems, fault detection I>, Z<, U/I or U/I/ • very fast tripping times • very good selectivity and system stability • Automatic reclosure with additional functions • DLC (closing only when there is no voltage on the line) • ADT (closing only when reclosure at remote end is successful) • RDT (shortened dead time following TRIP by overreaching zone) • Saves plant and avoids unnecessary dead times • Operational measured values • comprehensive selection of measurands, tolerance <1% • Measurement transducers are no longer required

    21. 7SA6 Some enhancements • Coupling to conventional Tele-control • 20mA interface for analogue measured value and fault location output • BCD-Measured value and fault location output • 7SA6 is perfectly suited for integration in existing substations • Breaker failure protection, 2-stage • Back-up earth fault protection for earthed systems • 4-stage, sensitivity 0,5% IN • high sensitivity and selectivity, also in the event of high resistance faults • Voltage protection U> and U< • ULE, ULL, U0, U1, U2 • Non-conventional Instrument transformer inputs* and Process bus connection * • security of investment * Funktionalität ist in Vorbereitung

    22. 7SA610 7SA611 7SA612 7SA631 7SA632 7SA641 7SA642 All functions are available in all the housing versions 7SA610Housing 1/3 7SA62Housing 1/1 7SA61Housing 1/2 7SA6 SIPROTEC 4 with Distance protection 7SA61 Protection 4-line display MV, HV and EHV 7SA63 Protection + local control integrated graphic display mainly MV 7SA64 Protection + local control detached control panel mainly MV

    23. CLOSE * TRIP CLOSE TRIP 1-pole 3-pole TRIP final CLOSE 2 nd Dead Time TRIP 1st Dead Time tgrading t1st t2nd SIPROTEC 4Distance protection 7SA6 Automatic reclosure (AR) * ADT = Close if 1st reclose at remote end is successful DLC = Close if there is no voltage on the line RDT = shortened dead time after non-selective TRIP

    24. Distance Protection SIPROTEC 4Auto-Reclosure (1) • Up to 8 independent ARC cycles can be selected • Mode selection ´only 1 pole´ / ´1-3 pole´ / ´only 3 pole´ • Operating mode selectable for each cycle • Support of various operating modes: • Auto-reclose cycle initiation by fault detection / trip command • DLC: Dead Line Check • ADT: Adaptive Dead Time • RDT: Reduced Dead Time for Z1B-trip with external fault • Integrated monitoring of initiate conditions • Reclose cycles with and without action time supervision new new new new new new new

    25. Distance Protection SIPROTEC 4Auto-Reclosure (2) • Remote close command from ARC master to opposite line end • Separate dead times for all ARC cycles • Three pole coupling of trip command for implausibility • Integrated dead time monitoring • Integrated circuit breaker monitoring and plausibility check • Integrated evolving fault recognition and treatment • Automatic blocking of the ARC following manual close or open CB condition • Initiation of ARC by internal or external functions • Support of 1 ½ and double circuit breaker applications new new new new new

    26. Distance Protection SIPROTEC 4Auto-Reclosure with ADT* SS1 SS2 Master im Normalbetrieb Slave im ASP-Modus • Slave provides close command when: • the remote close command is received from the master (remote station) or healthy voltage (3-phasig) is measured for a settable time • CB-ready state prevails (selectable) • Sync-check release was given (selectable) • ADT*-Advantages • No repeated closure onto faults (improved system stability) • Reduces stress of CB poles (longer maintenance cycles) * Adaptive Dead Time, patent pending

    27. 7SA612*-*C 7SA610*-*A 7SA610*-*B 7SA611*-*A 7SA611*-*B 7SA612*-*A 7SA612*-*B 1 1 1 1 1 Housing width (x 19“) / / ½ ½ / / / 3 3 1 1 1 Binary inputs 5 7 13 20 21 29 33 Live contact 1 1 1 1 1 1 1 Binary outputs/trip/alarm relays 8 5 16 8 24 32 11 Power relays for direct control of motorised isolators 0 0 0 4 0 0 8 LED’s for indication of Event status 7 7 14 14 14 14 14 LED’s for indication of device ready status 2 2 2 2 2 2 2 Current transformer 4 4 4 4 4 4 4 Voltage transformer 4 4 4 4 4 4 4 o o þ o þ þ þ High speed tripping relays l l l l l l l 20mA analogue output (ordering option) SIPROTEC 47SA61 - I/O capability • The distance protection range 7SA61 is available with the following I/O versions: • Front interface with • 4-line back-lit display, • numerical keypad, LED‘s, • Function keys and • PC-serial interface

    28. 7SA632*-*C 7SA631*-*A 7SA631*-*B 7SA632*-*A 7SA632*-*B 1 1 1 Housing width (x 19“) ½ ½ / / / 1 1 1 Binary inputs 13 20 21 29 33 Live contact 1 1 1 1 1 Binary outputs/trip/alarm relays 16 8 24 32 11 Power relays for direct control of motorised isolators 0 4 0 0 8 LED’s for indication of Event status 14 14 14 14 14 LED’s for indication of device ready status 2 2 2 2 2 Current transformer 4 4 4 4 4 Voltage transformer 4 4 4 4 4 þ o þ þ þ High speed tripping relays l l l l l 20mA analogue output (ordering option) SIPROTEC 47SA63 - Mengengerüst • The distance protection range 7SA63 is available with the following I/O versions: • Front interface with • large back-lit graphic display for bay mimic diagram, • numerical keypad, LED‘s • control keys, • key switches, • Function keys and • PC-serial interface

    29. 7SA642*-*C 7SA641*-*A 7SA641*-*B 7SA642*-*A 7SA642*-*B 1 1 1 Housing width (x 19“) ½ ½ / / / 1 1 1 Binary inputs 13 20 21 29 33 Live contact 1 1 1 1 1 Binary outputs/trip/alarm relays 16 8 24 32 11 Power relays for direct control of motorised isolators 0 4 0 0 8 LED’s for indication of Event status 14 14 14 14 14 LED’s for indication of device ready status 2 2 2 2 2 Current transformer 4 4 4 4 4 Voltage transformer 4 4 4 4 4 þ o þ þ þ High speed tripping relays l l l l l 20mA analogue output (ordering option) SIPROTEC 47SA64 - Mengengerüst • The distance protection range 7SA64 is available with the following I/O versions: • Device with detached HMI for • Mounting in the back of the control cubicle with • large back-lit graphic display for bay mimic diagram, • numerical keypad, LED‘s, • Control keys, • Key switches, • Function keys and • PC-serial interface