Three Phase Voltage Monitor Relay RNPP-301
Product Details:
Voltage Type | AC |
Voltage (V) | 415 V |
Number of Poles | 4 Pole, 3 Pole |
Current (Amps) | 5A @ 250V AC |
Application | Three Phase Voltage Mnitoring and Protection |
The RNPP-301 voltage monitoring relay is designed for protection of three-phase loads against major type of mains faults, as:
- RMS voltage reaching beyond admissible thresholds
- Phase sequence order violation and phase coincidence
- Violation of the mains voltage phase completeness and symmetry
The device performs monitoring the main circuit parameters and de-energizes load when the parameters fall beyond specified boundaries. The relay also tracks the status of magnetic starter power contacts at no-load and under load while monitoring their operability (burning or sticking).
The front panel LEDs display the following:
- Presence of voltage in the mains
- Load status (ON/OFF)
- Type of fault
Six variable pot knobs on the front panel allow for setting:
- The maximum allowable voltage tripping threshold
- The minimum allowable voltage tripping threshold
- Allowable phase imbalance threshold
- Tripping time delay for load de-energizing in case of emergency voltage reduction
- Tripping time delay for load de-energizing in case of other circuit faults
- Time delay for load re-energizing after the circuit parameters recovery
The device can function a phase- or line- voltage monitor (user-selected). Three modifications of this device are currently produced.
Additional Information:
- Item Code:Â RNPP-301
- Port of Dispatch:Â New Delhi, India
Technical brief:
Rated phase/line voltage, VÂ |
240/415 |
Mains frequency, Hz |
45-55 |
Harmonical configuration (nonsinusoidality) of power supply voltage |
EN 61000-3-2 (IEC 1000-3-2) |
Adjustable range for Umin, % of nominal value |
5-25 |
Adjustable range for Umax, % of nominal value |
5-25 |
Adjustable range for phase imbalance/asymmetry, % |
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 |
30-110 |
Power required (under load), VA, not more than |
3.0 |
Maximum switched current of output contacts, AÂ |
5 |
Output contacts life:
|
 100000 |
Protection degree of:
|
|
Permissible contamination level |
II |
Overvoltage category |
III |
Nominal voltage of isolation, VÂ |
450 |
Rated impulse withstand voltage, kVÂ |
4 |
Cross-section area of connection terminals, mm² |
0.5-2 |
Maximum torque of terminal fixing, N*m |
0.4 |
Operating temperature range, °C |
from -35 to +55 |
Weight, no more than, kg |
0.200 |
Case dimensions 4 modules of S-type |
|
Mounting 35 mm DIN-rail |
|
Mounting position as desired |
Â
RNPP-301 complies with requirements:
IEC 60947-1:2004, ІDТ; ІEC 60947-6-2:1992, ІDT; CISPR 11:2004, IDT; IEC 61000-4-2:2001, IDT