| Brand | MV Switchgear Accessories |
| Numero sa Modelo | GRF8-01 Peryodiko Relay |
| Nasodnong peryedyo | 40Hz-70Hz |
| Serye | GRF8 |
Ang GRF8-01 frequency relay usa ka high-precision ug highly reliable power monitoring device nga gigisged-a para sa power frequency monitoring ug protection. Kasagaran kini gitawag og power frequency monitoring relay, frequency monitoring relay, o dual-mode frequency adjustable relay. Kini nga produkto nag-integrate og intelligent functions ug user-friendly operation, ug mahimong gamiton sa wide range sa generator sets, power systems, ug industrial equipment. Ang stability sa power frequency ug ang safety sa pag-operate sa equipment maghatag og efficient guarantees alang sa critical power scenarios.
Application sa GRF8-01 frequency relay produkto:
Isip frequency guardian sa power system, ang GRF8-01 nagsilbi sa mosunod nga mga areas:
1. Generator set monitoring: Real time detection sa diesel/gas generator output frequency. Kon ang fluctuation mobohe sa gisugyot nga threshold sa ± 2%, ang protection mechanism ma-trigger sa 0.1 seconds aron maprevent ang damage sa equipment
2. Microgrid system: nagpadayon sa multi power frequency synchronization ug precise phase matching sa panahon sa grid switching sa integrated wind solar energy storage systems
3. Industrial production line: naghatag og frequency anomaly warning alang sa precision machining equipment aron maprevent ang batch defects resulta sa power grid fluctuations
4. Ship power system: gisertipikar batasan sa EN60945, angay sa humid ug salt spray environments sa dagat, nag-ensure sa stability sa power supply sa ship auxiliary equipment
Product features sa GRF8-01 frequency relay:
1. Dual power monitoring mechanism
Ang GRF8-01 dili lamang gi-monitor ang external power frequency sa real-time, apan usab adunay continuous monitoring function sa iyang own working power supply. Kini nga design makaepektibo nga iwasan ang monitoring failures resulta sa abnormal internal power supply sa equipment, nag-improve sa system reliability gikan sa source, ug nag-ensure nga walay blind spots sa monitoring.
2. Intelligent frequency switching adaptation
Built in 50Hz/60Hz dual-mode adjustable configuration, mahimo nga ma-switch sa dili pa mauli pinaagi sa panel dip switch, perfectly adapting sa power grid standards sa lain-lain nga rehiyon sa mundo. Bisag European industrial equipment o power generation units sa Asia Pacific region, mahimo silang seamless compatible ug expand ang application scenarios sa equipment.
3. Multi state visualization diagnosis
Innovatively adopting LED indicator light system: green, red, combined with strobe coding technology, supporting rapid identification sa 21 types of faults. Pinaagi sa design sa transparent observation window, ang operation ug maintenance personnel mahimo nga intuitively grasp ang status sa equipment gikan sa 10 meters away, nag-reduce sa dako ang oras sa fault location.
4. Dual mode fault recovery system
Industry mechanical rotary recovery mode selector, naghatag og duha ka strategies: "fault locking" ug "automatic reset". Maintain a safe state human sa critical system failure sa lock mode ug wait for manual intervention; Automatic reset mode with adjustable delay restart, especially suitable for unmanned power plants. Ang knob adopts IP20 protection level ug angay sa high dust ug humid environments.
| Model | GRF8-01 Frequency Relay |
| Function | Monitoring frequency |
| Supply terminals | A1-A2 |
| Rated supply voltage | AC120-277V |
| Supply voltage limits | AC100-310V |
| Monitoring frequency range | 40Hz-70Hz |
| Over threshold value | -2…+10 Hz |
| Under threshold value | -10…+2 Hz |
| Hysteresis | fixed 0.3Hz |
| Measurement error | ±0.05Hz |
| Time delay | Adjustable 0.1s-10s,10% |
| Delay at power up | 0.5s |
| Temperature coecient | 0.05%/℃,at=20℃(0.05%℉，at=68℉) |
| Output indication | green LED |
| Output | 2×SPDT |
| Current rating | 8A/AC1 |
| Switching voltage | 250VAC/24VDC |
| Min.breaking capacity DC | 500mW |
| Fault indication | red LED |
| 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 cathegory | III. |
| Pollution degree | 2 |
| Max.cable size(mm²) | solid wire max.1×2.5 or 2×1.5/with sleeve max.1×2.5(AWG 12) |
| Tightening torque | 0.4Nm |
| Dimensions | 90×18×64mm |
| Weight | 59g |
| Standards | EN/IEC60947-5-1 |
