ABB RET650 Technical Manual page 79
Relion 650 series
transformer protection
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Also See for RET650:
- Applications manual (392 pages) ,
- Commissioning manual (112 pages) ,
- Product manual (70 pages)
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1MRK 504 135-UEN A
Technical manual
Activating
signal 1
Activating
signal 2
LED 1
LED 2
Automatic
reset
Manual
reset
IEC01000239 V2 EN
Figure 22:
Operating sequence 6 (LatchedReset-S), two indications within
same disturbance
Figure 23
shows the timing diagram for a new indication after tRestart time has
elapsed.
Activating
signal 1
Activating
signal 2
LED 1
LED 2
Automatic
reset
Manual
reset
IEC01000240 V2 EN
Figure 23:
Operating sequence 6 (LatchedReset-S), two different disturbances
Local Human-Machine-Interface LHMI
Disturbance
tRestart
Disturbance
tRestart
Section 5
IEC01000239_2-en.vsd
Disturbance
tRestart
IEC01000240_2_en.vsd
73
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