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查看完整版本: 南瑞继保RCS-931差动保护的英文介绍，可以用来学习电力词汇。

地铁一号线 2007-9-21 13:13

南瑞继保RCS-931差动保护的英文介绍，可以用来学习电力词汇。

RCS-931 Line Current Differential RelayQ Z?;y ^Ipm
ApplicationlInD,e`G$w
The RCS-931 relay is a current differential line protection with stepped distance elements used for the main and back-up protection of transmission lines with single-pole trip, three-pole trip and auto-reclosing."wM+w8V&s(atSoq

FunctionsFk$U:ln!wg
 Phase current differential protection. (87PL)
 Zero sequence current differential protection. (87GL)(IP {7p@;q f
 DPFC (Deviation Power Frequency variation Component) differential protection (87DL)&[.V.h&wn&xAxk
 Zone 1 DPFC distance protection. (21D)g*qCj lGI
 Three-zone phase-to-phase distance protection. (21P)o\)Ftz
 Three-zone phase-to-ground distance protection. (21G)C y4U I H;dr"k*~
 Four-level zero sequence directional overcurrent protection. (67G)'Ikl@j)R
 Two-level time zero sequence overcurrent protection. (51G)as0i7a)[
 Time overcurrent protection during VT failure. (51P VT)XRj`k![n!N!u"J
 Time zero sequence overcurrent protection during VT failure. (51G VT)-dpe,ig XHw.H
 Switch-on-to-fault (SOFT) logic.{/Z gZ+|
 Power swing blocking. (68).zlRi4{W6MPw
 Pole discrepancy detection element.
 Overload alarm function.
 Synchronism check. (25)
 Auto-reclosing (single-pole and three-pole). (79)
 Circuit breaker monitoring._on?p u WO
 CT failure detection logic./i_9Y;z0W
 VT failure detection logic.d^ T*TnC/l+TE~y
 Line voltage failure supervision.
 Operating circuit supervision.
 Voltage and current drift auto adjustment.
 Self diagnostic test.ad*^2n,J s6X
 Fault Recorder.#R'V!TV"l9Xbh Ww
 Fault Locator.5W3Y7[H)_By'Y+m_2oI
 GPS clock synchronization.p r+Cuuz
 128 event reports.3m] R7R/~ aY
 High resolution oscillography of last 24 oscillograms (compatible with international COMTRADE format)
 High-speed 64 kbit/s PCM channel or 2048 kbit/s dedicated optical fiber channel for data transmission. IEC 60870-5-103 protocol is adopted.
 Rear communication ports: Ethernet (Optional) or 2 RS-485 with IEC 60870-5-103 protocol, 1 RS-485 with clock synchronization, 1 RS-232 or RS-485 with printer.m?[)e\'^}N
 Front communication port: 1 RS-232 for testing and setting. nv$C6X\ gv t7?

Features
 The RCS-931 relay provides wiring connectors from the relay rear panel to the terminal blocks on the rack or cabinet. This kind of connectorized wiring makes the on-site commissioning and replacement much easier than what you do the commissioning using the traditional screw terminals on the rear panel. NR provides the special and dedicated test set, HELP-90, for a low-level voltage injection test. 0^ `Dg:U
 The RCS-931 relay provides some special measurement to prevent any undesired trip. The relay has two independent data acquisition paths, one for a fault detector and one for protection and its logic. Tripping outputs are supervised by the fault detector to prevent a mis-operation caused by any component failure in the relay.d*EC_%\1z
 On the premise of 24 samples per cycle, all data measurement, calculation and logic discrimination could be done within one sampling period. The event recording and protection logic calculation are completed simultaneously..G^AhQ}6cx$P
 The typical operating time is 10 ms for a close-in fault, 15 ms for a fault in the middle of the line, 25 ms for a remote fault._cRKh w]I
 The sampling time of both terminals could be adjusted via clock synchronization. Data could be exchanged by high-speed channel (64 kbit/s or 2048kbit/s).
 The ratio of CT on two terminals could be different. Different ratio of various CT on each terminal could be regulated by configurable coefficients in software.7s Gzn*_/ZM
 Data from both terminals are used for fault location. Fault locator has higher accuracy.
 The channel could be monitored automatically. Bit error rate could be displayed online. Current differential protection would be blocked during channel failure.
 The patented adaptive floating threshold method is adopted in DPFC element, which is insensitive to system unbalance and disturbance. The measuring element could get both high security and high speed simultaneously.
 The relay can be used for the series compensated transmission line.
 The built-in reliable power swing blocking logic can properly supervise the distance elements during a power swing. The power swing blocking logic can make the relay untrip for an external fault during a power swing and pickup for an internal fault.
 The sensitivity of the DPFC distance element is very high and the operation speed is very fast. It doesn’t need a power swing blocking logic.
 The relay can be applied for the weak infeed condition and insensitive to the power source change.7m/|EN Y7B
 Definite time and inverse time characteristics are both provided for zero sequence overcurrent protection.#m1r9Px4dK(x
 The relay could receive and transmit tripping commands from and to the opposite terminal via channel.
 The relay can select the faulty phase and make a phase trip correctly, even for a high resistance fault.
 The relay provides GPS clock synchronization, including second pulse, minute pulse and IRIG-B synchronization.
 The HMI interface with a LCD and a 9-button keypad on the front panel is friendly to users.
 The format of event report is compatible with international COMTRADE file.}(giy~U(U$E*C
 The relay is equipped with Ethernet port and RS-485/232 ports with the IEC 60870-5-103 protocol.

Technical data

AC Current Inputs:%OU6bO0o%pAF
5A nominal:
15A continuous, linear to 200A symmetrical
100A for 10s, 500A for 1s, 1250A for 1 cycle,afNc*v2z
Burden: < 1.0 VA/phase @ 5A:LJt9Hfa~
1A nominal:
3A continuous, linear to 40A symmetrical0_\G6f P6|
20A for 10s, 100A for 1s, 250A for 1 cycle` F#A7L4n"Y!z
Burden: < 0.5 VA/phase @ 1AB\EP(^1q6mi

AC Voltage Inputs:
100V/√3 VL-N or 110V/√3 VL-N, three-phase four-wire connection.
130-150 VL-N continuous
Burden: < 0.5 VA/phase @ 57V
< 0.5 VA/phase @ 67V

Power Supply:[;U,v-R9O-r
Rated: 220/250 Vdc
Range: 176 - 288 Vdc"ukb-qlBY
Burden: <35W
Rated: 110/125 Vdc.Hbj+O-bH*{
Range: 88 - 144 Vdc
Burden: <35W:\ GVvTt#z.j
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Digital Outputs:
30A make
8A continuous carry
35A for 1s
Pickup time: < 5 ms, Bounce time: 1 ms b!QR!NG
Breaker Capacity: G%r(m:Mzg*N ^ O
110/125V: 0.3A L/R=40msNx/p1OU
220/250V: 0.3A L/R=40ms

Digital Inputs:
220/250Vdc: Pickup 200-300Vdc
Dropout 138Vdc9a y ti/c P%jj
110/125Vdc: Pickup105-150Vdc NXZ9ky,Y9x,IM
Dropout 69Vdc
Draw approximately 2 mA current
2M V @(h6q)cdb4G
Typical Operating Time:
DPFC Zone 1 distance protection:
Close-in/Middle/Remote: 10ms/15ms/ 20ms(i}}dn
Current differential protection: 25ms*~:F,nCO
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Routine Dielectric Test:
Voltage/Current inputs: 2000 Vac for 1 min.HMr2V6t/nM"~5r!e
Power supply, optoisolated inputs and output contacts: 2000 Vac for 1 min[r@V!VZ
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Frequency and Rotation:
System Frequency: 50Hz，60 Hz
Phase Rotation: ABCS3Y:?[[[8S
Protection: 50±0.5Hz, 60±0.5Hz
Measuring: 50±5Hz, 60±5Hz7mD9~kF0avPb
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Communications Ports:
EIA-232: 1 Front, Baud rate: 300-38400 bpshzO3z}1y$O
EIA-485: 2Rear, Baud rate: 4800-38400 bps
Fiber: ST, Multi-mode Fiber 850nmV4XaK'H0ab~
Twisted Pair: Screwable
Ethernet:
Fiber: SC, Multi-mode Fiber, 1310nmyH ~5V,~pT
Twisted Pair: RJ45, 10/100M

Optical interface n:NdxC k
Optic connector: FC/PCh'{%fX:~}!g(Sh&Y
Optic emitter: 1310nm FP laser diodeduG"q%c)an
Optic receiver: InGaAs photodiode module
Optic power output:
- 12 dBm, -9 dBm, -6 dBmXUW/{5|~0CD#[
Receiver sensitivity: -48 dBm
Maximum transmission distance: 100km

Time-Code Input:
Demodulated IRIG-B time-code input.

Operating Temperature Range:
-20℃ to +70℃
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Dimension:
482 mm (W)×177 mm (H)×291 mm (D)

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查看完整版本: 南瑞继保RCS-931差动保护的英文介绍，可以用来学习电力词汇。