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RNPP-311M
NOVATEK-ELECTRO
1. APPLICATION
Multifunctional voltage monitoring relay RNPP-311M (hereinafter RNPP-311M) performs the following
functions:
Permissible voltage level control;
Control of correct phase sequence, phase loss and phase coincidence;
Phase imbalance control (control of full phase power load and phase symmetry);
Turning the power load
OFF
by operating with output contacts in case of unallowable mains voltage
parameters. User adjusted Tripping time delay is in the range 0-10 sec (
Toff
);
Mains voltage monitoring after tripping and automatic turning
ON
the power load when the voltage
parameters return back to normal conditions. Autoreclosing time delay is adjusted by (
T
on
) user in the range
0-600 seconds;
Alarm indication in case of voltage faults and indication of voltage presence on each phase;
Using toggle switch (Figure 1; point 4) RNPP-311M user may select the type of the power circuit (400V
or 415V) and the set of optionally performed functions (using toggle switches 5-8 shown on Figure 1).
1
– Min/Max voltage tripping threshold (
U
max
/U
min
);
2
– Autoreclosing time delay (
T
on
);
3
– Tripping time delay (
T
off
)
;
4
– Toggle switch: type of power circuit 400V/415V;
5
– Toggle switch (ON/OFF): phase sequence control (
SEQ
);
6
– Toggle switch (ON/OFF): phase imbalance control (
IMB
);
7
– Toggle switch (ON/OFF): Minimal voltage tripping (
U
min
);
8
– Toggle switch (ON/OFF): Maximal voltage tripping (
U
max
);
9
– Green LED indicators of voltage presence on each phase;
10
– Red LED “
ALARM
” indicator showing also the open state of the output contacts;
11
– Input terminals 400V/415V;
12
– Input terminals 24V (available on request);
13
– Output terminals.
Figure 1 - Control descriptions and dimensions diagram
It is possible to adjust the RNPP-311M to operate in following modes:
complete voltage parameters monitoring;
MIN/MAX voltage level monitoring;
