Protective Elements
Working Principle Synchrocheck (System-to-System)
(Please refer to the block diagram on next page.)
The synchrocheck function for two systems is very similar to the synchrocheck function for generator-to-system
except there is no need to take the breaker closing time into account. The synchrocheck element measures the
three phase-to-neutral voltages »
VL1«, »VL2«, and »VL3« or the three phase-to-phase voltages »VL1-L2«, »VL2-
L3«, and »VL3-L1« of the station voltage bus bar. The line voltage Vx is measured by the fourth voltage input. If all
synchronous conditions are fulfilled (i. e.:
ΔV [VoltageDiff],
ΔF [SlipFrequency],
and
Δφ [AngleDiff]) are within the
limits, a signal will be issued that both systems are synchronous.
885
MCDLV4
DOK-HB-MCDLV4-2E
Содержание HighPROtec MCDLV4
Страница 1: ...Manual Line Differential Protection MCDLV4 Software Version 3 4 a DOK HB MCDLV4 2E Revision A English...
Страница 3: ...Order Code Order Code 3 MCDLV4 DOK HB MCDLV4 2E...
Страница 47: ...Installation and Connection 47 MCDLV4 DOK HB MCDLV4 2E...
Страница 164: ...Input Output and LED Settings 164 MCDLV4 DOK HB MCDLV4 2E...
Страница 433: ...Parameters 433 MCDLV4 DOK HB MCDLV4 2E...
Страница 457: ...Device Parameters 457 MCDLV4 DOK HB MCDLV4 2E...
Страница 473: ...Blockings 473 MCDLV4 DOK HB MCDLV4 2E...
Страница 822: ...Protective Elements Name Description Profibus Scada Cmd 16 Scada Command 822 MCDLV4 DOK HB MCDLV4 2E...
Страница 988: ...Protective Elements 988 MCDLV4 DOK HB MCDLV4 2E P P Q P Q P Q Q Q P S S...
Страница 989: ...Protective Elements 989 MCDLV4 DOK HB MCDLV4 2E Pr Q P Q P Qr...
Страница 1023: ...Protective Elements 1023 MCDLV4 DOK HB MCDLV4 2E...
Страница 1070: ...Supervision 1070 MCDLV4 DOK HB MCDLV4 2E...