Regulus uREG, User Manual

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uREG User Manual
105
19. PERFORMANCE AND INTERNAL TESTING
This section presents suggested instructions for laboratory and operational tests in the MV
substation to determine
u REG
performance. These instructions are universal and relate to
most hardware configurations and types of functional applications.
The instructions were developed based on observations and tests completed in previous
years in relation to protection units, gained experience and general knowledge of electronics
and electrical engineering.
The instructions are given in the form of a brief test report including:
1.
different tests, with visual inspection and evaluation of the enclosure, the panel (LEDs,
display, buttons, interfaces, termination strips for peripheral modules, IF-0 module lines,
PS-0 power unit.
2. Power unit check:
The PS-0 power unit must be operated under the following conditions:

set the power source to 95 V DC and apply auxiliary voltage, adjust LCD brightness to
level 9,

increase the supply voltage to 345 V DC,

decrease the voltage to 88 V DC,

set the source voltage to 230 V DC and measure the power input – power consumed
from the source should not exceed 10 W.
3. Logic input check (under supervision of
Monitor3
); Digital inputs of peripheral modules
should respond to the following activation/deactivation voltage thresholds:

effective activation of inputs set to a high threshold 80 VDC

effective discarding of inputs set to a high threshold 30 VDC

effective activation of inputs set to a low threshold 21 VDC

effective discarding of inputs set to a low threshold 10 VDC.
4. Relay check (under supervision of
Monitor3)
. Confirm relay switching on/off.
5. Check of errors of measurement paths relating to analogue values, including:

phase currents If at desired points of the characteristic curve,

phase voltages Uf at desired points on the characteristic curve (57.7 V AC and 100 V AC),

frequency at the following points: 46.0 Hz, 50.0 Hz and 54.0 Hz during occurrence of
phase voltages with a value of 30 V AC.