| Brand | MV Switchgear Accessories |
| Numero sa Modelo | 3 Phase Voltage Relay GRV8-03 hangtod 08 |
| Nasodnong peryedyo | 45Hz-65Hz |
| Serye | GRV8 |
Ang GRV8-03 hangtod sa 08 series three-phase voltage monitoring relays mao ang mga pangunahon nga komponente alang sa pagpahigayon og stable nga operasyon ug seguridad sa equipment sa mga three-phase power systems. Ang iyang high-precision measurement, flexible configuration options, reliable protection functions, ug compact design nagpadayon kini nga maayo nga performa sa uban nga mga application scenarios sama sa industrial automation, mobile devices, power switching, ug power protection. Pili ang GRV8 series aron mobuntag ka og professional ug reliable nga voltage monitoring solution alang sa imong electrical system.
Mga features sa GRV8-03 hangtod sa 08 series three-phase voltage monitoring relay:
1. True RMS measurement:
Pinaagi sa paggamit sa true effective value measurement technology, makakapahibalo kini nga accurate sa actual nga voltage waveform sa power grid, makaepektibo sa pag-responso sa voltage monitoring needs sa harmonic distortion o waveform distortion environments, ug maghatag og mas reliable nga protection benchmarks.
2. Wide range rated voltage options:
Naghatag og 8 standard nga rated voltage specifications (GRV8-03 hangtod sa 08) aron mapili, na cover ang mainstream nga industrial voltage levels sa tibuok mundo, na may maayo nga global applicability, na simplify ang equipment selection ug inventory management.
3. Flexible wiring methods:
Nagsuporta sa duha ka common nga three-phase system wiring methods, 3-phase 3-wire (Delta) ug 3-phase 4-wire (Wye/Star), aron mopasabot sa uban nga mga distribution network structures.
4. High precision voltage monitoring:
Ang voltage measurement accuracy gi-control sa ≤ 1% aron ma-accurate ang determination sa system voltage status ug i-avoid ang misoperation o protection failure.
5. Intuitive status indication:
Giequip niini og high brightness LED indicator lights, na clear display sa current nga working status sa relay (sama sa power supply, fault type, output status, etc.), na facilitate ang quick on-site diagnosis ug maintenance.
6. Compact design, space saving:
Adopting ultra-thin design, na may width lang nga 18mm, suporta kini sa standard 35mm DIN rail installation, na save valuable nga installation space sa loob sa control cabinet, labi na suitable sa limited nga occasions sa espasyo.
Advantages sa GRV8-03 hangtod sa 08 series three-phase voltage monitoring relays:
1. Wide applicability:
Multi voltage specifications ug dual wiring mode design nagsatisfy sa application needs sa uban nga regions ug systems sa tibuok mundo.
2. High reliability:
Ang combination sa true effective value measurement technology ug high-precision monitoring nag-ensure sa accuracy ug timeliness sa protective actions sa uban nga complex nga power grid environments.
3. Easy installation:
Ang ultra-thin ug compact body ug standard DIN rail installation method nag-simplify sa installation process ug save control cabinet space.
4. Maintain intuitive:
Clear LED status indication nag-facilitate sa quick understanding sa equipment status sa operators ug nag-facilitate sa troubleshooting ug maintenance.
5. High cost-effectiveness:
Ang three-phase voltage monitoring ug protection function gihatag sa reasonable nga cost effectively nag-reduce sa risk sa equipment failure ug maintenance costs.
| Technical parameters | M460 | M265 |
| Function | Monitoring 3-phase voltage | |
| Monitoring terminals | L1-L2-L3 | L1-L2-L3-N |
| Supply terminals | L1-L2 | L1-N |
| Voltage range | 220-230-240-380-400-415-440-460(P-P) | 127-132-138-220-230-240-254-265(P-N) |
| Rated supply frequency | 45Hz-65Hz | |
| Measuring range | 176V-552V | 101V-318V |
| Threshold adjustment voltage | 2%-20%of Unselected | |
| Adjustment of asymmetry threshold | 5%-15% | |
| Hysteresis | 2% | |
| Phase failure value | 70% of Un selected Min=165V |
70% of Un selected |
| Time delay | Adjustable 0.1s-10s,10% | |
| Measurement error | ≤1% | |
| Run up delay at power-up | 0.5s time delay | |
| Konb setting accuracy | 10% of the scale value | |
| Supply indication | green LED | |
| Output indication | red LED | |
| Reset time | 1000ms | |
| Output | 1×SPDT | |
| Current rating | 10A/AC1 | |
| Switching voltage | 250VAC/24VDC | |
| Min. breaking capacity DC | 500mW | |
| Temperature coefficient | 0.05%/℃,at=20℃(0.05%℉，at=68℉) | |
| 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 | 0.8Nm | |
| Dimensions | 90×18×64mm | |
| Weight | 61g-66g | |
