Secondary Tests; Scope Of Inspection And Methodology; Recommendation For Testing Of Functions - Siemens SIPROTEC 5 V7.80 Operation

9.4

Secondary Tests

Scope of Inspection and Methodology

9.4.1
The secondary test objectives are:
•
Checking the transformer burdens, checking the transformer data of the main current and voltage trans-
former
•
Checking the routing of signals to the most varied targets (binary inputs (BI), binary outputs (BO), LEDs,
and interfaces)
•
Checking function charts (CFC) in the device
•
Checking the interactions between devices, for example, exchange of information or measured values via
interface
•
Checking the correct setting of protection functions and the interaction of protection functions (for
example, circuit-breaker failure protection, automatic reclosing)
•
Checking communication with a systems control
You can proceed in different ways depending on problem definition and test objective. To simplify the inspec-
tion effort, the application of test programs of digital test equipment is recommended. During a secondary
test, you do not have to go through all characteristic-curve points. That is the subject matter of an acceptance
test. Focus on characteristic values. These are pickup values, operate times, and the interaction between func-
tions as well as devices.
In this test you can also make use of integrated test functions and hence reduce the expense on test tech-
nology. Pickup values and the reaction of the protection function can be checked easily with the sequencer
(see chapter 9.2.3 Testing Protection
!
WARNING
Warning of danger from secondary tests
Noncompliance with safety notes can result in death, serious injuries, or considerable material
damage.
Secondary tests must only be carried out by personnel who are qualified electricians and are familiar
²
with the commissioning of protection systems, the operation of the system, and with safety regula-
tions and provisions (switching, grounding, etc.).
Make sure that there are no connections to the primary system during the secondary test.
²
In the secondary test it is assumed that there are still no connections to the primary system. But if you do this
in the primary system, special safety conditions must be followed.
Consider that no other measurands are locked in, unless otherwise indicated.
²
Consider that the trip and close commands to the circuit breakers are interrupted, unless otherwise indi-
²
cated.
Take note of the general instructions in chapter
²
9.4.2

Recommendation for Testing of Functions

Only general recommendations are given in this manual. Please refer to the respective Device manual for the
function-specific instructions to be followed. Remember also that a deviation from the expected functionality
can have its cause in an erroneous test sequence.
SIPROTEC 5, Operation, Manual
C53000-G5040-C003-9, Edition 06.2018
Functions).
9.5 Primary Tests.
Commissioning
9.4 Secondary Tests
203