| Brand | Switchgear parts |
| Numero sa Modelo | 3 Phase Display Voltage Monitoring Relay GRV8-SN |
| Nasodnong peryedyo | 45Hz-65Hz |
| Rated Working Voltage | 220-460(P-P) |
| Serye | GRV8-SN |
Ang GRV8-S usa nga intelligent relay nga integra ang pag-monitor sa three-phase voltage, display sa data, ug kontrol sa proteksyon. Gisulti kini sa high-precision true effective value measurement technology aron real-time monitoring sa voltage status sa three-phase power supply system. Pinaagi sa intuitive LCD display screen, gihatag kini og reliable voltage anomaly protection solution alang sa industrial power systems, angay sa uban pang automation control scenarios nga nanginahanglan og assurance sa voltage safety.
Mga Advantages sa GRV8-S Three phase Voltage Monitoring Relay with Display:
1. Intelligent monitoring: Integrated self diagnostic function, real-time monitoring sa working status sa relay, nag-improve sa system maintenance efficiency.
2. Optimization sa human-computer interaction: intuitive interface design nag-reduce sa operational barriers ug simplified ang on-site debugging processes.
3. High adaptability: Compatible sa wide voltage range ug supports multiple wiring modes, angay sa complex industrial environments.
4. Space efficiency: Ultra thin design nag-optimize sa cabinet layout, angay sa high-density installation scenarios.
5. Reliable protection: Multiple voltage fault protection mechanism nag-reduce sa risk sa equipment damage.
Product Features sa GRV8-S Three phase Voltage Monitoring Relay with Display:
1. High precision true effective value measurement
Gisulti kini sa true RMS (TRMS) measurement technology aron accurate reflection sa actual waveform sa voltage ug effectively deal sa harmonic interference, ensuring reliability sa monitoring data.
2. Multi functional LCD display
Built-in LCD display screen, real-time display sa voltage values, status indicators, ug fault types para sa bawat phase, facilitating quick on-site diagnosis ug parameter setting.
3. Flexible system adaptability
Supports two wiring modes: three-phase three wire (3P3L) ug three-phase four wire (3P4L), ug can be adapted sa various rated voltage systems (such as 220V, 380V, etc.).
4. High measurement accuracy
Voltage measurement error ≤ 1%, meeting the accuracy requirements for voltage monitoring in precision industrial scenarios.
5. Compact structural design
The module width is only 36mm and supports standard 35mm card rail installation, saving control cabinet space and improving system integration.
Application of GRV8-S Three phase Voltage Monitoring Relay with Display:
1. Three phase power supply overvoltage/undervoltage protection
Real time monitoring sa voltage fluctuations sa power grid, triggering alarms or disconnection instructions in case of overvoltage, undervoltage, or voltage imbalance, to ensure the safe operation of electrical equipment.
2. Equipment reverse operation protection
By using the phase sequence monitoring function, mechanical damage or safety accidents caused by reverse power supply in rotating equipment such as motors can be prevented.
3. Dual power switching control
Automatic switching system for normal power supply and emergency power supply (such as generators), ensuring power continuity.
4. Power load phase failure protection
Accurately detect phase loss faults in three-phase systems, promptly cut off power, and avoid motor burnout or production line shutdown losses.
| Technical parameters | GRV8-SN | GRV8-SP |
| Function | Monitoring 3-phase voltage | |
| Monitoring terminals | L1-L2-L3-N | L1-L2-L3 |
| Voltage range(Un) | 127-132-138-220-230 -240-254-265(P-N) | 220-230-240-380-400 -415-440-460(P-P) |
| Rated supply frequency | 45Hz-65Hz | |
| Supply voltage limits | 70V-400V | 130V-650V |
| Measurement error | ≤1% | |
| hysteresis | 2% | |
| Phase failure | 50% of Un selected | |
| Time deviation | ≤5% | |
| Temperature coefficient | 0.05%/℃,at=20℃(0.05%℉,at=68℉) | |
| Output | 2×SPDT | |
| Current rating | 8A/AC1 | |
| Switching voltage | 250VAC/24VDC | |
| Min.breaking capacity DC | 500mW | |
| Mechanical life | 1×107 | |
| Electrical life(AC1) | 1×105 | |
| Operating temperature | -20℃ to +55℃(-4℉ to 131℉) | |
| Storage temperature | -35℃ to +75℃(-22℉ to 158℉) | |
| Mounting/DIN rail | Din rail EN/IEC 60715 | |
| Protection degree | IP40 for front panel/IP20 terminals | |
| Operating position | any | |
| Overvoltage category | III. | |
| Pollution degree | 2 | |
| Max.cable size(mm 2) | solid wire max.1×2.5or 2×1.5/with sleeve max.1×2.5(AWG 12) | |
| Tightening torque | 0.4Nm | |
| Dimensions | 90×36×64mm | |
| Weight | 100g | 109g |