Hitachi Relion 650 Series Technical Manual page 99

1MRK 511 557-UEN Rev. A
CloseStrategy
Src
External /
block
External /
block
External /
bypass
External /
bypass
External /
bypass
External /
bypass
External /
bypass
External /
bypass
External /
bypass
If any command is blocked or bypassed as per
BLKOPL2 / BLKOPL3, BLKCLL1 / BLKCLL2 / BLKCLL3, OPBYPASS or CLBYPASS, get activated
(1) for the respective open or close operation. If the condition for blocking or bypassing is persisting
(example: BLOCK input is high, or ByPassMode setting is enabled), these outputs remain high;
conversely, if the conditions are temporary, for example, because of the loss of reference signal and
others, these signals are generated for as long as the condition persists, minimum one task time. The
outputs are defined in
Table 50:
Interface
BLKOPL1
BLKOPL2
BLKOPL3
BLKCLL1
BLKCLL2
BLKCLL3
OPBYPASS
CLBYPASS
For controlled switching operations, SSCPOW delays the release of the output commands to the
three phases of the circuit breaker to achieve point-on-wave switching according to the set target
strategy. Minimum controller delay is 20 milliseconds and depends on operating time and switching
angle.
All the output commands are issued on three individual outputs for opening and three outputs for
closing operations. These output signals include time stamp information to activate the IED's static
outputs (PBOs) on the PIO card at the specified times.
Technical Manual
ByPassMode EXTSTGY
Bypass Close (any)
(any option
for open)
Bypass Close (any)
(any option
for open)
No Bypass / 1
Open
No Bypass / 0
Open
No Bypass / (any)
Open
No Bypass / 0
Open
No Bypass / (any)
Open
Bypass Close (any)
(any option
for open)
Bypass Close (any)
(any option
for open)
Table 50.
Block and bypass information outputs
Type
Output
Output
Output
Output
© 2021 Hitachi Energy. All rights reserved.
BLKCLOPR CONT or
contingency
condition
0 (any)
1 (any)
0 0
0 0
1 (any)
0 1
0 1
0 (any)
1 (any)
Table 48 and Table 49, the outputs BLKOPL1 /
Description
Indication that CB Open commands are blocked for phase L1 /
L2 / L3
Indication that CB Close commands are blocked for phase
L1 / L2 / L3
Indication that CB Open commands are bypassed
(uncontrolled opening)
Indication that CB Close commands are bypassed
(uncontrolled closing)
Section 9
Control
ContingencyM Closing
ode operation
(any) Bypassed
(any) Blocked
(any) Controlled
(any) Bypassed
(any) Blocked
Block close Bypassed
(any option
for open)
Bypass close Bypassed
(any option
for open)
(any) Bypassed
(any) Blocked
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