Trip/Close Tests For The Configured Operating Devices - Siemens SIPROTEC 7SK80 Manual
Motor protection
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- Manual (512 pages) ,
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Mounting and Commissioning
3.3 Commissioning
Temperature in °C
180
190
200
210
220
230
240
250
Temperature thresholds that are configured in the protection device can be checked by slowly approaching the
resistance value.
3.3.14
Trip/Close Tests for the Configured Operating Devices
Control by Local Command
If the configured equipment was not switched sufficiently in the hardware test already described, configured
equipment must be switched on and off from the device via the integrated control element. The feedback infor-
mation on the circuit breaker position injected via binary inputs is to be read out at the device and compared
with the actual breaker position.
The switching procedure is described in the SIPROTEC 4 System Description. The switching authority must
be set according to the command source used. The switching mode can be selected from interlocked and non-
interlocked switching. Please note that non-interlocked switching can be a safety hazard.
Control by Protective Functions
Please bear in mind that a trip signal sent to the circuit breaker can result in a trip-close-trip event of the circuit
breaker by an external reclosing device.
DANGER!
A test cycle successfully started by the automatic reclosure function can lead to the closing of the
circuit breaker !
Non-observance of the following statement will result in death, severe personal injury or substantial property
damage.
Be fully aware that OPEN-commands sent to the circuit breaker can result in a trip-close-trip event of the circuit
breaker by an external reclosing device.
Control from a Remote Control Center
If the device is connected to a remote substation via a system interface, the corresponding switching tests may
also be checked from the substation. Please also take into consideration that the switching authority is set in
correspondence with the source of commands used.
330
Temperature in °F
Ni 100 DIN 43760
356
223.152552
374
231.782912
392
240.66
410
249.79516
428
259.200121
446
268.886968
464
278.868111
482
289.15625
Ni 120 DIN 34760
Pt 100 IEC 60751
267.783063
168.4783
278.139495
172.172925
288.792
175.856
299.754192
179.527525
311.040145
183.1875
322.664362
186.835925
334.641733
190.4728
346.9875
194.098125
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A4, Release date 08.2010
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