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20 Distance Protection EV S V1 Bl. 1 of 26 SIPROTEC 4 Distance Protection 7SA6.

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Presentation on theme: "20 Distance Protection EV S V1 Bl. 1 of 26 SIPROTEC 4 Distance Protection 7SA6."— Presentation transcript:

1 20 Distance Protection EV S V1 Bl. 1 of 26 SIPROTEC 4 Distance Protection 7SA6

2 20 Distance Protection EV S V1 Bl. 2 of 26 What is SIPROTEC 4? SIPROTEC 4 is the family of numerical Protection, Control and Substation Automation devices by SIEMENS

3 20 Distance Protection EV S V1 Bl. 3 of 26 The protection functions are not new! They were therefor largely taken over from existing devices. What is SIPROTEC 4?

4 20 Distance Protection EV S V1 Bl. 4 of 26 The optional integrated local and remote control SIPROTEC 4 What makes these devices so attractive ?

5 20 Distance Protection EV S V1 Bl. 5 of 26 Additional functions Interlocking Processing of measured values Log. IN 1 Log. IN 2 Log.IN3 Logic inputs to the CFC from the Matrix Logic outputs to the matrix F1 F2 >1>1 CFC Log.OUT1 SIPROTEC 4 What makes these devices so attractive ? The ability to integrate bay level interlocking

6 20 Distance Protection EV S V1 Bl. 6 of 26 The comprehensive measured value processing I1 :400.9A f:50.0Hz U1:12.22kV P :+8.03MW cos  Q :+2.64MVar 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 ?

7 20 Distance Protection EV S V1 Bl. 7 of 26 The connection of switchgear without interposing devices SIPROTEC 4 What makes these devices so attractive ?

8 20 Distance Protection EV S V1 Bl. 8 of 26 The robust terminals SIPROTEC 4 What makes these devices so attractive ?

9 20 Distance Protection EV S V1 Bl. 9 of 26 The flexible communication interfaces as Fibre Optic or electrical exchange retrofit SIPROTEC 4 What makes these devices so attractive ?

10 20 Distance Protection EV S V1 Bl. 10 of 26 SIPROTEC 4 What makes these devices so attractive ? The user friendly operation with DIGSI 4

11 20 Distance Protection EV S V1 Bl. 11 of 26 Distance protection: Presence and Future 7SA6 Experience 7SA510 7SA511 7SA513 Requirements SIPROTEC 4 7SA522 7SJ63 System SIPROTEC 4 Hardware Modules Variability

12 20 Distance Protection EV S V1 Bl. 12 of 26 SIPROTEC 4 Distance protection 7SA6 7SA6 Distance protection for all voltage levels

13 20 Distance Protection EV S V1 Bl. 13 of 26 SIPROTEC 4 Distance protection 7SA6 Protection and automation 4-line display Full functionality in all housing options!

14 20 Distance Protection EV S V1 Bl. 14 of 26 SIPROTEC 4 Distance protection 7SA6 Protection, automation and local control Integrated graphic display Full functionality in all housing options!

15 20 Distance Protection EV S V1 Bl. 15 of 26 SIPROTEC 4 Distance protection 7SA6 Protection, automation local control detached HMI Full functionality in all housing options!

16 20 Distance Protection EV S V1 Bl. 16 of 26 Fault locator 20mA, BCD SIPROTEC 4 Distance protection 7SA6 Non-switched distance protection Earth fault detection (isolated/compensated systems) Automatic reclosure Breaker Fail protection 2-stage Synchro check Voltage protection Earth fault (short circuit) protection

17 20 Distance Protection EV S V1 Bl. 17 of 26 SIPROTEC 4 Distance protection 7SA6 - functions 52 Local/Tele Ctrl. Commands CB Indications 74TC Trip Circuit supervision 86 Lockout 21 Distance 21N 68 68T Power Swing FL Fault Locator 50N 51N Gnd O/C 67N Directional Ground 50 51 Over- current 50N-2 51N-2 85-21 Pilot Dist. 85-67N Pilot Gnd 50HS Switch onto- Flt. O/C 50STUB STUB O/C Weak infeed 27WI25 Synchro- check 79 Auto- reclosure 59 Over- voltage 50BF Bkr. fail. Operat. values Super- vision Pilot schemescan use one channel ortwo redundant channels to the remote end Serial Communication Interfaces CFC Logic Note: Pilot schemes = Teleprotection

18 20 Distance Protection EV S V1 Bl. 18 of 26 SIPROTEC 4 Distance 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 20 Distance Protection EV S V1 Bl. 19 of 26 SIPROTEC 4 Cost optimised protection schemes Fully redundant  2 communication channels  Direct coupling (G703,V11/X24) (in preparation) 7SD52 7SA6 7SD52 7SA6 Channel 1 Channel 2 DIF DIS 7SD52 7SA 7SD52 7SA Channel Contacts 1 Communication channel  Distance protection coupling to 7SD52 with signal transfer via contacts DIF DIS

20 20 Distance Protection EV S V1 Bl. 20 of 26 SIPROTEC 4 Distance protection 7SA6 I U I >> Over-current fault detection Voltage dependant Over-current fault detection Voltage and angle dependant Over-current fault detection I > I  >

21 20 Distance Protection EV S V1 Bl. 21 of 26 SIPROTEC 4 Distance protection 7SA6 Impedance fault detection Distance zones

22 20 Distance Protection EV S V1 Bl. 22 of 26 7SA6 Some 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

23 20 Distance Protection EV S V1 Bl. 23 of 26 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% I N  high sensitivity and selectivity, also in the event of high resistance faults Voltage protection U> and U<  U LE, U LL, U 0, U 1, U 2 Non-conventional Instrument transformer inputs* and Process bus connection *  security of investment * Funktionalität ist in Vorbereitung 7SA6 Some enhancements

24 20 Distance Protection EV S V1 Bl. 24 of 26 7SA6  2 Housing 1/1 7SA6  1 Housing 1/2 7SA610 Housing 1/3 7SA6 SIPROTEC 4 with Distance protection 7SA61  Protection  4-line display  MV, HV and EHV 7SA6127SA6117SA610 7SA63  Protection + local control  integrated graphic display  mainly MV 7SA6327SA631 7SA64  Protection + local control  detached control panel  mainly MV 7SA642 7SA641 All functions are available in all the housing versions

25 20 Distance Protection EV S V1 Bl. 25 of 26 Automatic reclosure (AR) CLOSE TRIP 2 nd Dead Time t 1st TRIP 1-pole 3-pole 1st Dead Time CLOSE * CLOSE t 2nd TRIP t grading 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 TRIP final * SIPROTEC 4 Distance protection 7SA6

26 20 Distance Protection EV S V1 Bl. 26 of 26 new new new new new new new Distance Protection SIPROTEC 4 Auto-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

27 20 Distance Protection EV S V1 Bl. 27 of 26 new new new new new Distance Protection SIPROTEC 4 Auto-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

28 20 Distance Protection EV S V1 Bl. 28 of 26 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) Distance Protection SIPROTEC 4 Auto-Reclosure with ADT* SS1SS2 Slave im ASP-Modus Master im Normalbetrieb * Adaptive Dead Time, patent pending ADT*-Advantages No repeated closure onto faults (improved system stability) Reduces stress of CB poles (longer maintenance cycles)

29 20 Distance Protection EV S V1 Bl. 29 of 26 SIPROTEC 4 7SA61 - 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

30 20 Distance Protection EV S V1 Bl. 30 of 26 SIPROTEC 4 7SA63 - 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

31 20 Distance Protection EV S V1 Bl. 31 of 26 SIPROTEC 4 7SA64 - 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


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