165
Synchro-check and energising-check
(SYRW)
&KDSWHU
&RQWURO
•
Both directions (Both)
•
Dead line live bus (DLLB)
•
Dead bus live line (DBLL)
The voltage check can also be set Off. A closing impulse can be issued to the circuit
breaker if one of the U-line or U-bus voltages is High and the other is Low, that is, when
only one side is energized. The user can set AutoEnerg and ManEnerg to enable differ-
ent conditions during automatic and manual closing of the circuit breaker.
In the manual mode it is also possible to allow closing when both sides of the breaker
are dead. This is done by setting the parameter ManDBDL = “On” and ManEnerg to
“DLLB”, “DBLL” or “Both”.
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)LJXUH 9ROWDJHFRQQHFWLRQLQDVLQJOHEXVEDUDUUDQJHPHQW
Figure 73 shows the principle for the connection arrangement. One terminal unit is used
for one bay. For the synchrocheck (SYRW) and energizing check function, there is one
voltage transformer at each side of the circuit breaker. The voltage transformer circuit
connections are straight forward, no special voltage selection is needed.
For the synchrocheck and energizing check, the voltage from Bus 1 (U-Bus 1) is con-
nected to the single phase analog input (U5) on the terminal unit.
en02000566.vsd
SYNCH.CHECK
VOLT SELECTION
I/O BI
AI
SYRW
U-Bus
U-Line
U5
UL1
FUSEUB1
FUSEF1
SYRW-UB1OK/FF
SYRW-VTSU
U5
UL1
Bus 1
Bay 1
F1
U-Bus 1
U-Line 1
FUSEUB1
FUSEF1
Summary of Contents for REO 517
Page 10: ... RQWHQWV ...
Page 16: ...6 Introduction to the application manual KDSWHU QWURGXFWLRQ ...
Page 64: ...54 Blocking of signals during test KDSWHU RPPRQ IXQFWLRQV ...
Page 88: ...78 Scheme communication logic ZCOM KDSWHU LQH LPSHGDQFH ...
Page 146: ...136 Unbalance protection for capacitor banks TOCC KDSWHU XUUHQW ...
Page 166: ...156 Dead line detection DLD KDSWHU 3RZHU V VWHP VXSHUYLVLRQ ...
Page 378: ...368 Monitoring of DC analog measurements KDSWHU 0RQLWRULQJ ...
Page 384: ...374 Pulse counter logic PC KDSWHU 0HWHULQJ ...
Page 412: ...402 Serial communication modules SCM KDSWHU DWD FRPPXQLFDWLRQ ...
Page 440: ...430 LED indication module KDSWHU DUGZDUH PRGXOHV ...