Siemens siprotec 7SJ63, Инструкция по эксплуатации

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Installation and Commissioning
8-32
7SJ63 Manual
C53000-G1140-C120-1
−
for each component, if a command to change the condition is successfully per-
formed,
−
for all hardware components if the
8SGDWH
field is clicked,
−
for all hardware components with cyclical updating if the
$XWRPDWLF8SGDWH
VHF
field is marked.
Ending the
Procedure To end the hardware test, click on
&ORVH
. The device becomes unavailable for a brief
start-up period immediately after this. The dialog box closes. Then all hardware com-
ponents are returned to the operating conditions.
8.3.9 Trip/Close Tests for Primary Equipment
Control by Local
Command At the end of commissioning, actual 7SJ63 tripping and closing should be verified for
all the relevant circuit breakers and primary switching devices. The feedback of the
status of the primary equipment, through the equipment’s auxiliary contacts to the bi-
nary inputs of the 7SJ63, should be checked during the testing. Be sure the 7SJ63 al-
ways indicates the true position of the equipment in the device messages.
The procedure for the control is described in Sub-section 7.3.1. Make sure that the
switching authority is set according to the source of commands that is used. The
switching mode can be chosen as interlocked or non-interlocked. Note that non-inter-
locked switching presents safety risks.
Control by Protec-
tive Function Tripping of the primary equipment by protective elements can be verified if desired.
However, be fully aware that such testing can result in closing of the circuit breaker by
the reclosing element in the 7SJ63 or an external reclosing device. If circuit breaker
closing is to be avoided, be sure the closing is defeated before the test is performed.
If reclosing is desired, select an element in the 7SJ63 that initiates reclosing, and test
the control by tripping this element in the testing. To avoid a trip-close-trip event, be
sure the protective element is dropped out before the close occurs.
8.3.10 Triggering Oscillographic Recordings
At the end of commissioning, an investigation of a closing operation of a circuit breaker
or primary switching device, under load conditions, should be done to assure the sta-
bility of the protection during the closing process. Oscillographic event recordings ob-
tain the maximum information about the behavior of the 7SJ63.
Requirements To obtain waveform captures, Address 0104
26&)$8/75(&
under the
'(9,&(
&21),*
menu must be set to
(QDEOHG
.
DANGER!
A successfully started test cycle can lead to the closing of the circuit breaker!
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