GE t60 Instruction Manual page 356
Ur series transformer protection system
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Also See for t60:
- Instruction manual (796 pages) ,
- Communications manual (532 pages) ,
- Instruction manual (698 pages)
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5.7 CONTROL ELEMENTS
SETTING
BREAKER 1 ARCING
AND
AMP FUNCTION:
Disabled=0
Enabled=1
SETTING
BREAKER 1 ARCING
AMP BLOCK:
Off=0
5
AND
SETTINGS
BREAKER 1 ARCING
AMP INIT-A:
Off=0
BREAKER 1 ARCING
AMP INIT-B:
Off=0
OR
BREAKER 1 ARCING
AMP INIT-C:
Off=0
SETTING
BREAKER 1 ARCING
AMP SOURCE:
IA
IB
IC
COMMAND
CLEAR BREAKER 1
ARCING AMPS:
NO=0
YES=1
5-224
Initiate
Programmable
Start Delay
Figure 5–126: ARCING CURRENT MEASUREMENT
SETTING
BREAKER 1 ARCING
AMP DELAY:
100 ms
OR
0
0
AND
RUN
Integrate
AND
RUN
Integrate
AND
RUN
Integrate
Figure 5–127: BREAKER ARCING CURRENT SCHEME LOGIC
T60 Transformer Protection System
Breaker
Arc
Contacts
Extinguished
Part
Total Area =
Breaker
Arcing
Current
(kA·cycle)
100 ms
Start
Stop
Integration
Integration
Add to
Accumulator
IA -Cycle
2
IB -Cycle
2
IC -Cycle
2
ACTUAL VALUE
Set All To Zero
BKR 1 ARCING AMP A
BKR 1 ARCING AMP B
BKR 1 ARCING AMP C
BKR 1 OPERATING TIME A
BKR 1 OPERATING TIME B
BKR 1 OPERATING TIME C
BKR 1 OPERATING TIME
5 SETTINGS
SETTING
BREAKER 1 ARCING
AMP LIMIT:
FLEXLOGIC OPERANDS
Select
2
Highest
KA Cycle Limit
BKR1 ARC OP
*
Value
BKR1 ARC DPO
827071A3.CDR
GE Multilin
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