Relays for Various Protection Applications / 7SV600
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1 Relays for Various Protection Applications / SV00 SIPROTEC SV00 numerical circuit-breaker failure protection relay Fig. 0/ Description SIPROTEC SV00 numerical circuit-breaker failure protection relay The SIPROTEC SV00 is a numerical relay used for circuitbreaker failure protection. A failure occurs when the circuitbreaker fails to correctly open and clear the fault after single or three-pole trip commands have been issued by the protection unit. It is then necessary to trip the relevant busbar zone (section) to ensure fault clearance. Generally, the monitoring of the current is sufficient as the criterion for the indication that the circuit-breaker has successfully cleared the fault ( current condition ). However, under certain fault conditions (e.g. overvoltage), little or no current may flow, making the measurement of current unreliable for indication of the circuit- breaker status ( no current condition ). The SV00 operates correctly for both these conditions. The relay is suitable for use at all voltage levels and in all applications. The current transformers can either be of the closed iron core or linear type. The relay can be incorporated in conventional switchgear systems and modem substation control systems e.g. SICAM. LSP00-afpen.tif Function overview Protection functions Circuit-breaker failure protection (single or three-pole with/ without current) Independently settable delay times for operation with and without current Single or two-stage time delay of the busbar trip command Re-trip (cross trip) stage ( st stage of the -stage operation) Intertrip facility (via teleprotection interface) End-fault protection with intertrip No current control using the circuit-breaker auxiliary contacts Features Highly sensitive current detection -out-of- check of the current detectors Short reset time, negligible overshoot time Can be initiated by phase-segregated or common-phase trip commands End-fault protection Assignable output relays, LEDs and binary inputs Monitoring functions Monitoring of circuit-breaker auxiliary contacts Operational current measured values Self-supervision of the relay Event buffer Fault protocols Oscillographic fault recording Communication interfaces x RS interface IEC protocol DIGSI Hardware Digital inputs: binary inputs Digital outputs: output relays Front design Display for operation and measured values LEDs for local alarm 0 Siemens SIP Edition No. 0/
2 Relays for Various Protection Applications / SV00 Application Application The numerical circuit-breaker failure protection relay SV00 provides rapid backup fault clearance instruction to the associated circuit-breakers in case the circuit-breaker nearest to the fault fails to respond. It is suitable for power systems of all voltage levels. The initiation signal can be derived from any protection or supervision equipment or, in case of manual opening, from the control discrepancy switch of the breaker. Information from the circuit-breaker auxiliary contact is required for the breaker failure protection to function during faults which produce little or no current flow (possible only with common-phase initiation). Simplified application diagram of circuit-breaker failure protection. Fig. 0/ Typical applications Simplified application diagram of circuit-breaker failure protection by means of a circuit-breaker auxiliary contact. 0 0/ Siemens SIP Edition No.
3 Relays for Various Protection Applications / SV00 Construction, protection functions Construction The relay contains all the components needed for Acquisition and evaluation of measured values Operation and display Output of signals and trip commands Input and evaluation of binary signals SCADA interface (RS) Power supply The rated CT currents applied to the SIPROTEC SV00 can be or A. This is selectable via a jumper inside the relay. Three different housings are available. The flush-mounting versions have terminals accessible from the rear. The surfacemounting version has terminals accessible from the front. LSP00-afpen.tif Protection functions Fig. 0/ Rear view of surface-mounting housing The breaker failure protection can operate single-stage or twostage. When used as single-stage protection, the bus trip command is given to the adjacent circuit-breakers if the protected feeder breaker fails. When used as two-stage protection, the first stage can be used to repeat the trip command to the relevant feeder breaker, normally on a different trip coil, if the initial trip command from the feeder protection is not successful. The second stage will result in a bus trip to the adjacent breakers, if the command of the first stage is not successful. The bus trip command from the breaker failure protection can be routed to all circuit-breakers linked to the same busbar (section) as the breaker that failed. It can also be transmitted to the remote end by means of a suitable communication link (e.g. PLC, radio wave, or optical fiber). The isolator replica which is necessary in case of multiple busbar sections is not part of the SV00 relay. The current level is monitored in each of the three phases against a set threshold. In addition, the zero-sequence component or the negative-sequence component of the phase currents derived by symmetrical component analysis is monitored. This ensures high security against malfunction by use of a -out-of- check of the current detectors. The version with phase-segregated initiation enables reliable breaker failure detection even during single-pole auto-reclose cycles, provided the phase-segregated trip signals of the feeder protection are connected to the SV00. If the protected circuit-breaker is not operational (e.g. air pressure failure or spring not charged), instantaneous bus trip of the adjacent circuit-breakers can be achieved following a feeder protection trip, provided the relay is informed via binary input of the breaker status (possible only for common-phase initiation). An end-fault protection function is integrated in the SV00 relay. An end fault is a short-circuit located between the circuitbreaker and the current transformer set of the feeder. For this fault, current flow is detected, although the auxiliary contacts of the breaker indicate open breaker poles. A command signal is generated which can be transmitted to the remote-end breaker (possible only for common-phase initiation). Special measures are taken to prevent malfunction of the relay. Besides the mentioned -out-of- check of the current detection elements, the trip signals of the feeder protection can be connected in a redundant manner, so that they can be checked for plausibility (possible only for common-phase initiation). Continuous monitoring of the measured values permits rapid annunciation of any fault in the instrument transformer circuits. Continuous plausibility monitoring of the internal measured value processing circuits and monitoring of the auxiliary voltages to ensure that they remain within tolerance are obviously inherent features. 0 Siemens SIP Edition No. 0/
4 Relays for Various Protection Applications / SV00 Serial data transmission, connection diagrams Serial data transmission A PC can be connected to ease setup of the relay using the Windows-based program DIGSI which runs under MS-Windows. It can also be used to evaluate up to oscillographic fault records, fault logs and the operational event buffer. As an option, a system interface is available. The SIPROTEC SV00 transmits a subset of data via IEC protocol: General fault detection of the device General trip of the device Current in phase L [%] = Breaker failure trip T (local trip) Breaker failure trip T (busbar trip) Circuit-breaker defective: Trip Trip by end-fault protection Trip by monitoring current symmetry Breaker failure protection is active Fig. 0/ Wiring communication RS For convenient wiring of the RS bus, use bus cable system XV0 (see part of this catalog) Connection diagrams 0 Fig. 0/0 Connection example for single-stage breaker failure protection with phase-segregated initiation 0/ Siemens SIP Edition No.
5 Relays for Various Protection Applications / SV00 Connection diagrams Fig. 0/ Connection example for -stage breaker failure protection, common-phase initiation, CB interrogation 0 Fig. 0/ Connection example for single-stage breaker failure protection with common-phase initation and Buchholz protection, CB interrogation is imperative; additional intertrip signal to the opposite line end in case of breaker failure or end fault Siemens SIP Edition No. 0/
6 Relays for Various Protection Applications / SV00 Technical data General unit data Measuring circuits Rated current I N Rated frequency f N can be parameterized Power consumption of current inputs At I N = A At I N = A Overload capability current path, Thermal (r.m.s.) to A 0 or 0 Hz (selectable) < 0. VA < 0. VA 00 x I N for s 0 x I N for 0 s x I N continuous Dynamic (pulse current) 0 x I N one half cycle Auxiliary voltage Power supply via integrated DC/DC converter Rated auxiliary voltage V Aux DC DC / V DC 0 / 0 / V DC 0 / 0 V Permissible variations DC to V DC to 0 V DC to 00 V Binary inputs Number Rated operating voltage Current consumption Pick-up threshold Rated aux. voltage DC //0 V Rated aux. voltage DC 0//0/0 V Unit design Housing Dimensions Weight In housing for surface mounting In housing for flush mounting Degree of protection acc. to EN 0 Housing Terminals Serial interface (can be marshalled) DC to 0 V Approx.. ma, independent of operating voltage selectable by plug-in jumpers V pickup DC V V drop-off < DC V V pickup DC V V drop-off < DC V XP0 Refer to part for dimension drawings Approx.. kg Approx..0 kg IP IP 0 Superimposed AC voltage Peak-to-peak Power consumption Quiescent Energized Bridging time during failure/shortcircuit of auxiliary voltage Rated auxiliary voltage V Aux Permissible variations Heavy duty (command) contacts Command (trip) relays, number Contacts per relays Switching capacity Make Break Switching voltage Permissible current Signal contacts Signal / alarm relays Contact per relays Switching capacity Make Break Switching voltage Permissible current % at rated voltage % at limits of admissible voltage Approx. W Approx. W 0 ms at V rated DC 0 V 0 ms at V rated DC V AC V, 0/0 Hz AC 0 V, 0/0 Hz AC to V AC to V (can be marshalled) NO 000 W / VA 0 W / VA 0 V A continuous 0 A for 0. s (can be marshalled) CO 000 W / VA 0 W / VA 0 V A Isolated Standard Test voltage Connection Baud rate Electrical tests Specifications Standards Insulation tests High voltage test (routine test) except DC voltage supply input and RS High voltage test (routine test) only DC voltage supply input and RS High voltage test (type test) Between open contacts of trip relays Between open contacts of alarm relays Impulse voltage test (type test) all circuits, class III RS DC. kv Data cable on terminals, two data wires, one frame reference, for connection of a personal computer or similar; core pairs with shield, shield must be grounded; communication possible via modem As delivered 00 baud min. 00 baud; max. 00 baud IEC 0-; ANSI/IEEE C.0.0 kv (r.m.s.); 0 Hz DC. kv. kv (r.m.s.), 0 Hz kv (r.m.s.), 0 Hz kv (peak);./0 µs; 0. J; positive and negative impulses at intervals of s 0/ Siemens SIP Edition No.
7 Relays for Various Protection Applications / SV00 Technical data EMC tests for noise immunity; type tests Standards: IEC 0-, IEC 0- (product standards); EN 00- (generic standard) VDE 0, part 0 High frequency IEC 0--, class III Electrostatic discharge IEC 0--, class III and IEC 000--, class III Irradiation with radio-frequency field, non-modulated; IEC 0-- (report), class III Irradiation with radio-frequency field, amplitude-modulated; IEC 000--, class III Irradiation with radio-frequency field, pulse-modulated; IEC 000--/ENV 00, class III Fast transients/bursts IEC 0-- and IEC 000--, class III Line-conducted HF, amplitudemodulated IEC 000--, class III Magnetic field with power frequency IEC 000--, class IV IEC 0- Oscillatory surge withstand capability ANSI/IEEE C.0. (common mode) Fast transient surge withstand capability ANSI/IEEE C.0. (common mode) Radiated electromagnetic interference ANSI/IEEE C.0. High frequency test document C (SEC) 0. kv (peak); MHz; τ = µs; 00 shots/s; duration s kv/ kv contact discharge; kv air discharge; both polarities; 0 pf; R i = 0 Ω 0 V/m; to 00 MHz 0 V/m; 0 to 000 MHz; 0 % AM; khz 0 V/m; 00 MHz; repetition frequency 00 Hz; duty cycle 0 % kv; /0 ns; khz; burst length ms; repetition rate 00 ms; both polarities; R i = 0 Ω; duration min 0 V; 0 khz to 0 MHz; 0 % AM; khz 0 A/m continuous; 00 A/m for s; 0 Hz 0. mt; 0 Hz. to kv (peak); to. MHz, decaying oscillation; 0 surges per s; duration s; R i = 0 Ω to 00 Ω to kv; 0/0 ns; 0 surges per s; both polarities; duration s; R i = 0 Ω 0 to 0 V/m; to 000 MHz; amplitude and pulse modulated. kv (peak, alternating polarity); 00 khz, MHz, 0 and 0 MHz, decaying oscillation; R i = 0 Ω EMC tests for interference emission; type tests Standard EN 00-* (generic standard) Conducted interference voltage, 0 to 0 MHz aux. voltage CISPR, EN 0 Limit class B Radio interference field strength CISPR, EN 0 0 to 000 MHz Limit class A Mechanical stress tests Vibration, shock stress and seismic vibration During operation Standards IEC 0- and IEC 00- Vibration IEC 0--, class I IEC 00-- Shock IEC 0--, class I Seismic vibration IEC 0--, class I IEC 00-- During transportation Standard Vibration IEC 0--, class II IEC 00-- Shock IEC 0--, class I IEC 00-- Continuous shock IEC 0--, class I IEC 00-- Sinusoidal 0 to 0 Hz: ± 0.0 mm amplitude; 0 to 0 Hz: 0. g acceleration Sweep rate octave/min 0 cycles in orthogonal axes Half-sine Acceleration g, duration ms, shocks in each direction of orthogonal axes Sinusoidal to Hz: ±. mm amplitude (horizontal axis) to Hz: ±. mm amplitude (vertical axis) to Hz: g acceleration (horizontal axis) to Hz: 0. g acceleration (vertical axis) Sweep rate octave/min cycle in orthogonal axes IEC 0- and IEC 00- Sinusoidal to Hz: ±. mm amplitude; to 0 Hz: g acceleration Sweep rate octave/min 0 cycles in orthogonal axes Half-sine Acceleration g, duration ms, shocks in each direction of orthogonal axes Half-sine Acceleration 0 g, duration ms, 000 shocks in each direction of orthogonal axes 0 Siemens SIP Edition No. 0/
8 Relays for Various Protection Applications / SV00 Technical data 0 Climatic stress tests Temperatures Permissible temperature during service Recommended temperature during service Permissible temperature during storage Permissible temperature during transport Storage and transport with standard works packaging! Humidity Permissible humidity We recommend that all units are installed such that they are not subjected to direct sunlight, nor to large temperature fluctuations which may give rise to condensation. Service conditions The relay is designed for use in industrial environment, for installation in standard relay rooms and compartments so that with proper installation electromagnetic compatibility (EMC) is ensured. The following should also be heeded: All contactors and relays which operate in the same cubicle or on the same relay panel as the digital protection equipment should, as a rule, be fitted with suitable spike quenching elements. All external connection leads in substations from 00 kv upwards should be shielded with a shield capable of carrying power currents and grounded at both sides. No special measures are normally necessary for substations of lower voltages. 0 C to +0 C (> C decreased display contrast) C to + C C to + C C to +0 C Mean value per year % relative humidity; on 0 days per year % relative humidity; condensation not permissible! The shield of the RS cable must be grounded. It is not permissible to withdraw or insert individual modules under voltage. In the withdrawn condition, some components are electrostatically endangered; during handling the standards for electrostatically endangered components must be observed. The modules are not endangered when plugged in. WARNING! The relay is not designed for use in residential, commercial or light-industrial environment as defined in EN 00. Functions Breaker supervision Current detection Setting range Drop-off ratio Tolerance Initiation conditions Depending on ordered version Times Pickup time Drop-off time with sinusoidal measured quantities Drop-off time maximum Delay times for all time stages 0.0 x I N to.00 x I N (steps 0.0 x I N ) Approx x I N or % of set value Phase-segregated initiation (singlepole trip from feeder protection) or common-phase initiation (threepole trip from feeder protection) and common-phase initiation (three-pole trip from non-shortcircuit protection) Approx. ms with measured quantities present Approx. ms after switch-on of measured quantities 0 ms ms 0.00 s to.00 s (steps 0.0 ms) or deactivated Delay time tolerance % of set value or 0 ms The set times are pure delay times. Additional functions Operational value measurements Operational current values Measurement range Tolerance I L ; I L ; I L 0 % to 0 % I N % of rated value or of measured value Steady-state measured value supervision Current unbalance I max / I min > symmetry factor as long as I > I limit Fault event data storage Storage of annunciations of the last eight faults with max. 0 messages each Time assignment Resolution for operational annunciations Resolution for fault event annunciations s ms Max. time deviation 0.0 % Data storage for fault recording (max. fault events) Total storage time (fault detection or trip command = 0 ms) Max. s, selectable pre-trigger and post-fault time Max. storage period per fault event T max Pre-trigger time T pre Post-fault time T post 0.0 to.00 s (steps 0.0 s) 0.0 to 0.0 s (steps 0.0 s) 0.0 to 0.0 s (steps 0.0 s) Sampling rate instantaneous value per ms at 0 Hz instantaneous value per 0. ms at 0 Hz 0/ Siemens SIP Edition No.
9 Relays for Various Protection Applications / SV00 Selection and ordering data Description Order No. SV00 numerical circuit-breaker failure protection relay SV00 - A A 0 - D A 0 Rated current; rated frequency A; 0/0 Hz A; 0/0 Hz Rated auxiliary voltage DC, V DC 0, 0, V DC 0, 0 V / AC V, 0/0 Hz AC 0 V, 0/0 Hz Unit design For panel surface mounting with terminals on both sides For panel surface mounting with terminals at top and bottom For panel flush mounting / cubicle mounting B D E Options For common-phase initiation For common-phase initiation or phase-segregated initiation 0 Accessories Description Order No. DIGSI Software for configuration and operation of Siemens protection units running under MS Windows (version Windows 000/ XP Professional Edition) device templates, Comtrade Viewer, electronic manual included as well as Getting started manual on paper, connecting cables (copper) Basis Full version with license for 0 computers, on CD-ROM (authorization by serial number) Professional DIGSI Basis and additionally SIGRA (fault record analysis), CFC Editor (logic editor), Display Editor (editor for default and control displays) and DIGSI Remote (remote operation) XS00-0AA00 XS0-0AA00 RS (V.) RS converter * XV00-00 Plug-in auxiliary power supply unit AC 0 V / 0 Hz 0 Plug-in auxiliary power supply unit AC 0 V / 0 Hz 0 With RS connecting cable for SJ, RW, SD, SV A With RS connecting cable with -pin connector for SIMEAS Q With RS connecting cable with plug connector for SIMEAS T Without RS connecting cable With RS connecting cable XV00- for PC/notebook, -pin connector (female) With RS adapter, -pin connector (male) to -pin connector (female) for connection to notebook/pc Converter full-duplex fiber-optic cable RS With power supply DC 0 V and AC 0 /0 V Manual for SV00 For the latest version please visit *) RS bus system up to kbaud RS bus cable and adaptor XV0- AA ; see part. A B C A B C XV0-0BA00 Siemens SIP Edition No. 0/
10 Relays for Various Protection Applications / SV00 Connection diagram Fig. 0/ General connection diagram of SV00 with presettings for common-phase initiation 0 Fig. 0/ General connection diagram of SV00 with presettings for phase-segregated initiation 0/0 Siemens SIP Edition No.
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