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Help CenterGKR-02 Voltage Monitoring Device Relay Phase Failure And Phase-sequence Protection Relay Din Rail Motor Protection
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1.Product attributes
GKR ve DGR series "over and under voltage" moitoring devices are adjustable "delay OFF"protection devices. they are mainly used for protection for 3-phase and single-phase systems-such as electronic command and control systems,capacitors fo power compensation, switch-boards ,air-condition systems,motors etc.
Utilization and Operation Principles
For all relays
"on" is the supply led
"out" is normal led
"U>"is over voltage error led
"U<"is under voltage errror led
1-When the device is energized for the first time."On" led is ON and if the monitored voltageare within the adjusted range "Out" led is ON and output relay switches ON.
2-When any of the phase/phases fall(s) below the adjusted interval,"U<" error led turns ON,after 0.1-10sec output relay switched OFF and "OUT" led turns OF.
3-When any of the phase/phases exceed(s) the adjusted interval,"U>" error led turns ON,after0.1-10 sec output relay switches OFF and "Out"led turns OFF.
look at table 1
*For under voltage monitoring device switched OFF its output relay instantaneously when the measured voltage(s) fall(s) below 50% of its nominal value.
For over voltage monitoring device switches OFF its output relay immediately when the measured voltage(s) exceeds 50% fo its nominal value.
GKR-02F /GKRC-02F/ GKRC-02FA /GKR-03F/GKRC-03F/ switches off output relay instantaneously in case of incorrect phase sequence then all leds turn off except "ON" led.
Technical Data:
| Rated voltage(Un) | Look it the label of the device |
| Rated frquuency | 50/60Hz |
| Operating range | (0.9-1.1)×Un |
| Voltage adjustment | Max: (1,05-1,03) ×Un |
| Min: (0,70-0,95) ×Un | |
| Delay time | 0.1-10sn.min.(adjustible) |
| Output contact | 1C/O 8A,2000VA, |
| Set point hysteresis | 3% |
| Ambient temperature | -5°C;+50°C |
| installition | Surface mounted or rail mounted |
| Dimension | Type PK10/PK21/PK25 |
| Protection class | IP20 |
2.Product display
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