dynamic voltage drop measurement - breaker.pdf
DESCRIPTION
TDR9000 - Medición de Resistencia DinámicaTRANSCRIPT
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Dynamic voltage drop measurement
Jozef LeviDoble Engineering Company
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Dynamic voltage drop measurement
High voltage breaker - contact system
Typical contact configuration
Contact material
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Dynamic voltage drop measurement
Timing circuit breaker
first contact
contact bounce
closed
open Time (ms)
1
0
Closing operation – Timing result
Low injected currentMultiple current break
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Dynamic voltage drop measurement
High direct current injectedTrip free operation Voltage drop measurement across terminals
Measurement
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Dynamic voltage drop measurement
Trip free operationBreaker open
Breaker in open position
Dynamic voltage drop measurement
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Dynamic voltage drop measurement
Power source
Trip free operationBreaker closed
Power source
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Dynamic voltage drop measurement
voltage drop
current
TDR9000
TDR9000 with Event Module
Trip free operationOpening breaker
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Dynamic voltage drop measurement
Breaker in open position
Trip free operationBreaker open
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Dynamic voltage drop measurement
current
voltage drop acrossterminals
time(ms)Volta
ge d
rop
(V)
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Dynamic voltage drop measurement
vibration during contactpenetration
main contact closed
arcing contactopen
Volta
ge d
rop
(V)
time(ms)
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Dynamic voltage drop measurement
main contact open
arcing contact radius arcing contactopen
Volta
ge d
rop
(V)
time(ms)
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Dynamic voltage drop measurement
Overlaid results
one contact shorter
main contactopen
Volta
ge d
rop
(V)
time(ms)
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Dynamic voltage drop measurement
Analog result
Digital result
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Dynamic voltage drop measurement
Different breakersSF6 breakers Bulk oil breaker
Test results
Air blast breaker
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Dynamic voltage drop measurement
GE FK 38
time(ms)
Voltage drop(V)
CLOSED
OPEN
Main contacts
Power source
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Dynamic voltage drop measurement
ALSTOM (AEG) Sw145
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Dynamic voltage drop measurement
Mitsubishi 100SFMT
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Dynamic voltage drop measurement
Delle PK-6
DC current
voltage dropContact system
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Dynamic voltage drop measurement
Energomex SFE16-2
current
voltage drop
Closing operation
main contact
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Dynamic voltage drop measurement
Energomex SFE16-2
main contact
main
contact
Voltage drop
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Dynamic voltage drop measurement
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