Bender NGRM700 Краткое руководство по эксплуатации - Страница 7
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Также для Bender NGRM700: Краткое руководство по эксплуатации (8 страниц), Руководство (8 страниц), Краткое руководство по эксплуатации (8 страниц)
Печатать страницуInitial commissioning
The commissioning wizard (menu 8) queries the following parameters; additional settings: menu 6.
Language (8.2)
Date (8.3)
Time (8.4)
Usys L-L (8.5)
Frequency (8.6)
INGR nom (8.7)
RNGR nom (8.8)
CT primary (8.9)
CT secondary (8.10)
CT connection (8.11)
Field calibration (8.12)Start or do not start
1. Setting the response values (menu 6.5)
Trip threshold value for voltage (U
Trip threshold value for current (I
Trip threshold values for resistance (R
Low trip threshold values: may lead to false tripping.
High trip threshold values: the device may not trip at all
2. System settings of the relays (menu 6.6)
The factory setting for the relays is fail-safe. In the case of self test, the relays change state.
Fail-safe: The relay is energised during normal operation and is deactivated in the event
of a fault.
Non-fail-safe: The relay is de-energised in normal operation and is activated in the event
of a fault.
3. Field calibration (menu 6.7)
After the parameters have been entered, a field calibration can be carried out to set R
4. Trip signal RMS, fundamental frequency, harmonics
Which measured value causes tripping can be selected via the "Trip signal" parameter (menu 6.5.11). A
trip signal can be:
RMS: The r.m.s. value of I or U over the entire frequency range (up to approx. 3.8 kHz).
Fundamental frequency: Only the r.m.s. component of the fundamental frequency (50 or 60 Hz).
Harmonics: The filtered r.m.s. value on the set harmonics where
H0 = DC; H1 = fundamental frequency; H2 = 2 x fundamental frequency; ...H32 = 32 x funda-
mental frequency
In the "Harmonics" measured value display (menu 2) all spectral lines are always
displayed. This is independent of the trip signal setting.
On the standard display, the trip signal is indicated as resistance (in Ω or %) or as
current (in A or %). The setting is entered in "Display" (menu 5).
NGRM700_D00292_02_Q_XXEN/06.2018
Select
Set
Set
System voltage
50 or 60 Hz
50 mA or 5 A
)
NGR
)
NGR
)
NGR
= R
.
NGR
NGR nom
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