Novatek THREE-PHASE VOLTAGE RELAY RNPP-301 RNPP-301 Scheda Tecnica
Codici prodotto
RNPP-301
- 2 -
RNPP-301
NOVATEK-ELECTRO
1 APPLICATIONS
A RNPP-301 voltage control relay is designed for:
1. monitoring of the tolerable RMS phase/line voltage level (at the option of user) with independent setting
1. monitoring of the tolerable RMS phase/line voltage level (at the option of user) with independent setting
adjustments for the minimum/maximum voltage thresholds;
2. monitoring of the correct phase sequence and phase “non-coincidence” (the phases are supposed to be
coinciding when a load is energized not from two different phases but instead from one and the same phase);
3. monitoring of three phase lines for voltage presence and the mains voltage symmetry with adjustable phase
imbalance setting;
4. monitoring of the magnetic starter power contacts status at no-load and under load;
5. the load (415V/50Hz) de-energization with user-set trip delay (Toff) through the opening the magnetic starter
5. the load (415V/50Hz) de-energization with user-set trip delay (Toff) through the opening the magnetic starter
coil power circuit (A.C and D.C. electric circuit switching) when fault conditions occur;
6. the mains voltage quality monitoring after the relay had tripped and did reset automatically with the user-set
reset delay (Ton) upon the voltage parameters regeneration;
7. all fault conditions (not switching of the magnetic starter power contacts is included) are displayed by special
LEDs indicating the specific cause of the occurring voltage fault in the mains.
2 TECHNICAL BRIEF
Rated phase/line voltage, V ………………………………………………………………… 240/415
Mains frequency, Hz ………………………………………………………………………...
Mains frequency, Hz ………………………………………………………………………...
45-55
Adjustable range for Umin, % of nominal value ………………………………………….. 5-25
Adjustable range for Umax, % of nominal value …………………………………….…… 5-25
Adjustable range for phase imbalance, % ………………………………………………… 5-20
Adjustable range for Tmin, sec …………………………………………………………….. 0-20
Adjustable range for Toff, sec ………………………………………………………………. 0-10
Adjustable range for Ton, sec ……………………………………………………………… 0-600
Minimum trip delay when threshold settings are reached, sec …………………………. 0.1
Reset/energization delay when the relay energizes, sec, not more than ……………… 0.2
Voltage hysteresis, V ………………………………………………………………………..
Adjustable range for Umax, % of nominal value …………………………………….…… 5-25
Adjustable range for phase imbalance, % ………………………………………………… 5-20
Adjustable range for Tmin, sec …………………………………………………………….. 0-20
Adjustable range for Toff, sec ………………………………………………………………. 0-10
Adjustable range for Ton, sec ……………………………………………………………… 0-600
Minimum trip delay when threshold settings are reached, sec …………………………. 0.1
Reset/energization delay when the relay energizes, sec, not more than ……………… 0.2
Voltage hysteresis, V ………………………………………………………………………..
5-6
Accuracy of trip threshold for voltage, V, not more than ………………………………… 3
Phase imbalance accuracy, %, not more than …………………………………………… 1.5
Safe operating voltage, % of rated value …………………………………………………. 30-130
Power required (under load), VA, not more than ………………………………………… 3.0
Maximum switched current of output contacts, A ………………………………………… 5
Output contacts life:
Phase imbalance accuracy, %, not more than …………………………………………… 1.5
Safe operating voltage, % of rated value …………………………………………………. 30-130
Power required (under load), VA, not more than ………………………………………… 3.0
Maximum switched current of output contacts, A ………………………………………… 5
Output contacts life:
• under load 5A, no less than, operations ………………………………………….
• under load 1A, no less than, operations ………………………………………….
100 000
1 mln.
Protection degree of:
• apparatus …………………………………………………………………………….
• terminal block ………………………………………………………………….…….
• terminal block ………………………………………………………………….…….
IP40
IP20
Operating temperature range, °C …………………………………………………….……. from -35 to +55
Storage temperature, °C ……………………………………………………………………. from -45 to +70
Weight, no more than, kg …………………………………………………………………… 0.200
Case dimensions 4 modules of S-type
Mounting 35 mm DIN-rail
Mounting position as desired
Storage temperature, °C ……………………………………………………………………. from -45 to +70
Weight, no more than, kg …………………………………………………………………… 0.200
Case dimensions 4 modules of S-type
Mounting 35 mm DIN-rail
Mounting position as desired
3 DESCRIPTION
The RNPP-301 relay (hereafter "the relay") is a digital microprocessor device that provides a high degree of
reliability and accuracy. The relay doesn't require any auxiliary power supply because it is self-powered by the
three-phase voltage to be monitored. This permits the relay to keep operate capability even when only one phase is
present (in the three-phase systems with neutral). Two modes of the mains voltage monitoring can be selected at
the user's option:
three-phase voltage to be monitored. This permits the relay to keep operate capability even when only one phase is
present (in the three-phase systems with neutral). Two modes of the mains voltage monitoring can be selected at
the user's option:
The phase voltage monitoring mode
To enable phase voltage monitoring mode it's necessary to remove jumper in between terminals 8-9 and
connect neutral wire to terminal 7. This mode of operation is recommended fot the situations when for the
machinery the neutral shift is very critical (within the range of user preset values) and when phase imbalance is a
matter of a great concern.
machinery the neutral shift is very critical (within the range of user preset values) and when phase imbalance is a
matter of a great concern.
The line voltage monitoring mode
To go into this mode of operation one needs to apply the jumper strap between terminals 8-9; in this case to
connect the neutral is not necessary. This mode of operation is recommended when the neutral drift value and
phase voltage imbalance is not important as well as for isolated neutral three-phase systems. The relay will trip
when line voltage imbalance between phases occurs.
phase voltage imbalance is not important as well as for isolated neutral three-phase systems. The relay will trip
when line voltage imbalance between phases occurs.
NOTE:
T
o keep the relay operative and informative when only one phase is present it's advisable to connect the
neutral to the terminal 7 not removing the jumper strap between terminals 8-9. In 3-Phase systems without neutral the