ABB RED615 Technical Manual page 761

1YHT530004D05 D
615 series
Technical Manual
Table 634: The automatic selection of operation modes for regulators in the Master/Follower
example
CB1 CB2
Open Open
Open Open
Open Closed
Open Closed
Closed Open
Closed Open
Closed Closed
Closed Closed
Configuration example for the Auto parallel (MCC) mode
The purpose of the Auto parallel (MCC) mode is to minimize the circulating
current between the parallel transformers. The data exchange between the
regulators can be done with the horizontal GOOSE communication.
IED 1 / Regulator 1
OLATCC
I_A RAISE_OWN
I_B LOWER_OWN
I_C FLLW1_CTL
U_AB FLLW2_CTL
FLLW3_CTL
TR1_TAP_POS
TR2_TAP_POS BLKD_I_LOD
TR3_TAP_POS BLKD_U_UN
RAISE_LOCAL BLKD_U_OV
LOWER_LOCAL BLKD_I_CIR
TAPCHG_FLLW BLKD_LTCBLK
PARALLEL
AUTO PAR_FAIL
CON_STATUS PARALLEL
LTC_BLOCK
TIMER_ON
TCO
RSV TR0_I_AMPL*
TR1_I_AMPL TR0_I_ANGL*
TR1_I_ANGL
TR2_I_AMPL
TR2_I_ANGL
TR3_I_AMPL
TR3_I_ANGL
* Only for GOOSE Engineering
GUID-1D6F1FD5-58AD-4AB1-B3F4-3414392CFEE1 V2 EN
Figure 406: Two parallel transformers and the horizontal connection via
GOOSE to transfer current and the phase angle information when
the MCC principle is used
Configuration example for the Auto parallel (NRP) mode
The advantage of the Negative Reactance Principle (NRP) operation mode is that
no wiring or communication is needed between the IEDs. The voltage regulators
operate independently. However, for the cases where there is an occasional
CB3
Open
Closed
Open
Closed
Open
Closed
Open
Closed
ALARM
AUTO
GOOSE communication
GOOSE communication
Section 9
Control functions
Regulator 1 Regulator 2
Manual Manual
Manual Auto single
Manual Manual
Manual Auto single
Auto single Manual
Auto single Auto single
Auto single Manual
Auto parallel Auto parallel
(Master) (Follower)
Auto parallel Auto parallel
mode = "Auto mode = "Auto
master'' follower"
IED 2 / Regulator 2
OLATCC
I_A
RAISE_OWN
I_B LOWER_OWN
I_C
FLLW1_CTL
U_AB
FLLW2_CTL
TR1_TAP_POS FLLW3_CTL
TR2_TAP_POS BLKD_I_LOD
TR3_TAP_POS
BLKD_U_UN
RAISE_LOCAL
BLKD_U_OV
LOWER_LOCAL BLKD_I_CIR
TAPCHG_FLLW
BLKD_LTCBLK
PARALLEL
ALARM
AUTO PAR_FAIL
CON_STATUS
PARALLEL
LTC_BLOCK
AUTO
TCO TIMER_ON
RSV TR0_I_AMPL*
TR1_I_AMPL
TR0_I_ANGL*
TR1_I_ANGL
TR2_I_AMPL
TR2_I_ANGL
TR3_I_AMPL
TR3_I_ANGL
* Only for GOOSE Engineering
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