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Siemens SIPROTEC 7SJ80 User Manual

Siemens SIPROTEC 7SJ80
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Automatic Reclosing
Number of Reclosures 0 to 9 (separated for phase and ground)
Cycles 1 to 4 can be adjusted individually
The following Protective Functions initiate the AR
79 (no 79 start / 79 start / 79 blocked)
50-3, 50-2, 50-1, 51, 67-3, 67-2, 67-1, 67-TOC
50N-3, 50N-2, 50N-1, 51N, 67N-3, 67N-2, 67N-1, 67- TOC
TOCsensitive ground fault detection, unbalanced load,
binary input
Blocking of 79 by Pick up of protective elements for which 79 blocking is set
(see above)
3-phase pickup (optional)3-polige Anregung (wahlweise)
Binary input
last trip command after the reclosing cycle is complete
(unsuccessful reclosure)
Trip command from the breaker failure
Opening the circuit breaker without 79
External CLOSE Command
Breaker failure monitoring
Dead Time T
Dead
(separate for phase and ground and individual for
cycles 1 to 4)
0.01 s to 320.00 s Increments 0.01 s
Extension of Dead Time using binary input with time monitoring
Blocking Duration for Manual-CLOSE Detec-
tionT
BLK Manual Close
0.50 s to 320.00 s oder ∞ Increments 0.01 s
Blocking Duration after reclosuree T
Blocking Time
0.50 s to 320.00 s Increments 0.01 s
Blocking Duration after Dynamic Blocking T
BLK DYN
0.01 s to 320.00 s Increments 0.01 s
Start Signal Monitoring Time T
Start Mnitor
0.01 s to 320.00 s oder ∞ Increments 0.01 s
Circuit Breaker Monitoring Time T
CB Monitor
0.10 s to 320.00 s Increments 0.01 s
Maximum Dead Time Extension T
Dead Exten
0.50 s to 320.00 s oder ∞ Increments 0.01 s
Start delay of dead time using binary input with time monitoring
Max. start delay of dead time
T
Dead Delay
0,0 s to 1800,0 s oder ∞ Increments 1,0 s
Operating time T
Operate
0,01 s to 320,00 s oder ∞ Increments 0,01 s
The following protection functions can be influ-
enced by the automatic reclosing function indi-
vidually for the cycles 1 to 4 (setting value T=T/
instantaneous T=0/ blocked T=infinite):
50-3, 50-2, 50-1, 51, 67-3, 67-2, 67-1, 67-TOC
50N-3, 50N-2, 50N-1, 51N, 67N-3, 67N-2, 67N-1, 67- TOC
Additional Functions Lockout (Final Trip)
Circuit breaker monitoring using breaker auxiliary
contacts
Synchronous closing (optionally with integrated or
external synchrocheck, )
4.17
Technical Data
4.17 Automatic Reclosing
SIPROTEC 4, 7SJ80, Manual 403
E50417-G1140-C343-A8, Edition 12.2017

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Siemens SIPROTEC 7SJ80 Specifications

General IconGeneral
Rated Frequency50/60 Hz
Rated Current1 A / 5 A
Operating Temperature-25°C to +55°C
Storage Temperature-40°C to +70°C
Current Transformer Inputs4
ApplicationProtection of feeders, motors, transformers, and generators
Rated Voltage100-240 V AC/DC
Communication ProtocolsIEC 61850, Modbus, DNP3, IEC 60870-5-103
DisplayGraphical LCD
MountingFlush mounting
Protection FunctionsOvercurrent, Earth fault
Communication InterfacesEthernet, RS485
HousingPlastic
WeightApprox. 1.5 kg

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